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LAKE STUDY
Barbee Mill Community Dock Project
For:
Conner Homes at Barbee Mill, LLC
846 - 108`i' Ave NE
Bellevue, WA 98004
At:
Barbee Mill
4205 Williams Ave N
Renton, WA 98056
Parcel ##051850 0120 (Pending)
Prepared by:
Marine Surveys & Assessments
521 Snagstead Way
Port Townsend, WA 98368
Phone. (360) 385-4073, Fax: (360) 385-1724
E-mail sea@cablespeed.com
March 20, 2008
MAP R 2 A_ '3
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Table of Contents
Lake Assessment Narrative
Page
1. Project location and description......................................................3
2. Lake classification...............................................................................4
3. Shoreline restoration and OHW mark...............................................4
4. Vegetative cover of the site..............................................................5
•
5. Ecological functions of Lake Washington along study area .......6
6. Fish or wildlife use of area...................................................................7
7. Measures to protect trees and vegetation.....................................7
Attachment Number Page
1. Plot plan for Lake Study......................................................................8
2. Project location...................................................................................9
3. Project overview notes.....................................................................10
4. Existing plot plan................................................................................11
5. Proposed plot plan............................................................................12
•
6. Existing upland plot plan..................................................................13
7. Proposed dock - plan and elevation views...................................14
8. Proposed 6' dock section detail......................................................15
9. Proposed 8' dock section detail......................................................16
10. Planting plan......................................................................................17
11. Plant schedule...................................................................................18
• MSA Barbee Mill Community Dock Project • 2
s
Barbee Mill Community Dock Project
Lake Study
Assessment Narrative
I. PROJECT LOCATION AND DESCRIPTION
Project Purpose and Location:
The proposed project is a community use dock intended to facilitate access to Lake Washington for Barbee Mill
community residents. The Barbee Mill community, a new major waterfront subdivision, is currently under
development by Conner Homes at Barbee Mill LLC ("Conner Homes") along the southeastern shoreline of Lake
Washington in the City of Renton in Section 32, Township 24N, Range 05E; Latitude 47.5°N, Longitude 1221W
(Attachment 2). The community dock would be located at 4205 Williams Ave N, Renton, WA 98056, the lakefront
community center parcel (the "subject property", attachment 4) and the "applicant" for the requested shoreline
substantial development permit.
Two bodies of water are adjacent to, or flow through, the Barbee Mill community: Lake Washington and May
Creek. The subject property is located along Lake Washington, a Shoreline of Statewide Significance as provided in
RMC 4-3-090F1, and a Shoreline of the State under RMC 4-11-190. This Standard Stream or Lake Study is
prepared in accordance with the requirements of RMC 4-8-120D with respect to the Lake Washington shoreline of
the subject property and the 100' of adjoining lakeshore lots both to the north and to the south of the subject
property's property lines (the "study area", attachment 1). May Creek, which flows through the Barbee Mill
community, is a Shoreline of the State (RMC 4-3-090172), however, as the subject property abuts neither May Creek
nor a 100' wide buffer along either side of May Creek, no stream or lake study is required with respect to May
Creek for purposes of this application. As the proposed project is a community use dock which will require no
additional grading, and as detailed grading and topographical maps of the subject property were provided with
respect to the upland development, the grading plan, site drainage, floodplain and topographical map requirements
are included on the Development Services Division list of submittal requirement waivers for this application and
are, therefore, not addressed herein.
B. Project Description:
The Barbee Mill community is being developed by Conner Homes at Barbee Mill LLC on the approximately 22
acre site of the former Barbee Mill Company lumber mill. To restore the former industrial site to a parcel suitable
for a residential waterfront subdivision, the mill buildings were demolished; fill soils were removed from behind the
bulkhead; asphalt paving, a pier, the wooden bulkhead and piling associated with the mill operation were removed;
and extensive shoreline restoration was completed pursuant to sale of the site to Conner Homes. The shoreline
restoration was completed by the Barbee Mill Company in conjunction with vacation of the land. The applicant for
regulatory permits was Robert Cugini, Barbee Mill Company; the name of the project was Barbee Mill Beach
Restoration.
Upon completion, the Barbee Mill community will have 114 multi -story paired homes, a pond, walking trails and
lakefront open space for the use of residents. Lots 23 through 48 are lakefront lots; the subject property is situated
between lots 30 and 31. The subject property has approximately 90' of lakefront with a sloping protective berm of
rock about 5' high along the shoreline. A coir roll installed as part of the site remediation extends along the toe of
the berm with a row of large logs along the shoreline just waterward of the coir roll. A drainpipe outflow extends
from the bank about midway along the subject property shoreline within a 15' wide public drainage easement that
crosses the parcel.
40 MSA Barbee Mill Community Dock Project • 3
E
Under the proposed project plan (attachments 2 —9), a new 1480 sq.ft. community dock would be constructed about
midway along the subject property shoreline (approximate coordinates of 47.53022°N, 122.20515°W). The
proposed dock would provide safe and convenient access to Lake Washington from the lakefront community center
parcel for residents and guests of the Barbee Mill community. In addition to a landing and day moorage facility for
watercraft, the dock would be a suitable place for launching canoes and kayaks, sun-bathing, swimming, fishing,
water skiing and any number of other water sports and activities. In deciding upon a proposed dock location,
Conner Homes required a site that would not impair the general public's use and enjoyment of the lake, would not
interfere with the use of existing or future neighboring docks or piers, and that would not pose a navigation hazard
to boaters, but that would be a convenient location for Barbee Mill community residents.
The proposed dock will have a 6' by 172' main walkway and an 8' by 56' "T", fully grated to lessen shading
impacts; the bottom of the dock will be 18" above the Ordinary High Water Line (OHWL). Construction methods
employed on the project will be minimally disruptive to wildlife and the environment. Construction site access will
be by foot or by boat, with all materials and equipment delivered to the site by barge; the barge will be moored so as
to prevent grounding on the lake bottom. All dock sections will be prefabricated and delivered to the site. G1u-lam
stringers will be used to allow the longest spans possible between piles; the smallest number and diameter of steel
piles will be used to minimize the amount of structure in the water and the disturbance to the substrate; and piles
will generally be set with a vibratory pile driver. Silt containment curtains will be installed around the work area
and other similar best management practices will be implemented to minimize the opportunity for erosion during
pile driving activities.
2. LAKE CLASSIFICATION:
As a Shoreline of Statewide Significance (RMC 4-3-090F), Lake Washington is included in the definition of a
Shoreline of the State (RMC 4-11-190). Lake Washington is a Class 1 lake as it is a perennial salmonid-bearing
body of water classified as a Shoreline of the State (RMC 4-11-190S1).
3. SHORELINE RESTORATION AND OHW MARK:
Shoreline Restoration:
Prior to restoration of the beach in conjunction with vacation of the land, the Lake Washington shoreline along the
study area was heavily bulkheaded, back -filled and covered with impervious asphalt paving. Numerous piling and
substantial quantities of concrete rubble and other shoreline debris were on site. Pursuant to the site remediation,
upland and in -water structures including the timber bulkhead and piling were removed, shoreline rubble was
removed, fill soil was excavated to subgrade elevations, toe rock and a temporary quarry spall erosion control berm
were installed, and sand, gravel and rock materials were used to construct a beach to mimic natural conditions. No
additional excavation, grading, clearing or fill material will be required for the proposed dock project.
ORW Mark:
The Ordinary High Water (OHW) mark for Lake Washington is the line of mean high water (RMC 4-11-150
Definitions 0). The Lake Washington water depth is controlled by the Army Corps of Engineers at the Hiram M.
Chittenden Locks and is at 21.8' of lake elevation. In the course of the Barbee Mill Beach Restoration site
rem.ediation, permanent toe rock was installed along the OHWL. As of March 20, 2007, the date the SCUBA survey
was conducted for purposes of identifying flora, fauna, substrate types and other qualitative information relative to
the Biological Evaluation for this proposed dock project, coin rolls were located along the OHWL.
0 MSA Barbee Mill Community Dock Project • 4
4.VEGETATIVE COVER OF THE SITE:
The Study area includes no wetland or flood hazard areas; it does include Lake Washington riparian areas. Prior to
the Barbee Mill Beach Restoration project, riparian vegetation was found to be generally absent within the Study
area as the shoreline behind the bulkhead was paved. In unpaved areas, vegetation noted included Juncus efusus
(soft rush) and Iris pseudocaris (a non-native iris). After excavating the fill soil and removing the bulkhead during
the beach restoration process, the beach was reconstructed to mimic natural conditions with sand, gravel and rocks.
In the course of the SCUBA survey, Myriophyllum spicatum (Eurasian Milfoil), an invasive nonnative plant, was
found along all the Tract E transects. No planting is proposed below the OHWL.
Native riparian vegetation was planted along the newly restored beach including through plantings in the coir rolls.
The upland redevelopment required extensive regrading and clearing; a mitigation planting plan was agreed upon
that includes planting along the Lake Washington shoreline. Planting along the shoreline in accordance with this
mitigation plan has already commenced. The following species are included in the preliminary plant list for the
shoreline buffer zone:
Trees:
Amelanchier alnifolia (Serviceberry)
Fraxinus latifolia (Oregon Ash)
Pinus contorta (Shore Pine)
Salix sitchensis (Sitka Willow)
Shrubs:
Cornus sericea (Red -osier Dogwood)
Cornus sericea 'Flaviramea' (Yellow Twig Dogwood)
Helictotrichon sataecetum (Blue Oat Grass)
Mahonia aquifolium (Tall Oregon Grape)
Mahonia nervosa (Low Oregon Grape)
Ribes sanguineum (Red Flowering Currant)
Symphoricarpos albus (Snowberry)
Groundcovers:
Allium cernuum (Nodding Onion)
Armeria maritima (Thrift)
* Arctostaphylos uva-ursi (Kinnikinnik)
Fragaria chiloensis (Beach Strawberry)
Symphoricarpos mollis (Trailing Snowberry)
The following species are included in the planting plan for the upland portion of the community center parcel
(attachments 10 and 11):
Trees:
Cercidiphyllum japonicum (Katsura Tree)
Betula pendula (European White Birch)
Acer circinatum (Vine Maple)
Acer griseum (Paperbark Maple)
Thujopsis dolabrata (False Arborvitae)
. MSA Barbee Mill Community Dock Project • 5
:1
Shrubs:
Eennisetum alopecuroides 'Little Bunny' (Little Bunny Fountain Grass)
Ilex crenata 'Soft Touch' (Soft Touch Holly)
Acanthus mollus (Bears Breech)
Mahonia aquifolium (Oregon Grape)
Cistus salviifolius (Sage -leaf Rockrose)
Cornius stolonifera'Kelseyi' (Kelseyi Edtwig Dogwood)
Hosta 'Guacamole' (Guacamole Hosta)
Symphoricarpos albus (Common Snowberry)
Hydrangea macrophylla'All Summer Beauty' (All Summer Beauty Hydrangea)
Euphorbia polychroma (Cushion Spurge)
Helleborus orientalis (Lenten Rose)
Heuchera micraniha Palace Purple' (Coral Bells)
Euphorbia polychroma (Cushion Spurge)
Helleborus orientalis (Lenten Rose)
i Heuchera micrantha'Palace Purple' (Coral Bells)
Lavandula angustifolia (English Lavender)
Agapanthus'Blue Giant' (Blue Giant African Lily)
Hemerocalis'Chicago Royal Robe' (Royal Robe Daylily)
Eernettya mucronata (Heath)
Groundcovers:
Pratia pedunculata (Blue Star Creeper)
Fragaria chiloensis (Beach Strawberry)
Arctostaphylos uva-ursi (Kinnikinnik)
Cotoneaster dammeri (Bearbeny Cotoneaster)
5. ECOLOGICAL FUNCTIONS OF LAKE WASHINGTON ALONG STUDY AREA
Until relatively recently, the industrial structures and use of the site limited the ecological functions that would
otherwise have been provided by Lake Washington and its adjacent riparian area. As a result of the extensive site
restoration work, including removal of the wooden bulkhead, large pier and numerous pilings, excavation of fill soil
from behind the bulkhead, and reconstruction of the beach to mimic its natural state, the ecological functions of the
portion of the lake within the Study area should be greatly enhanced. Recently planted riparian vegetation will help
stabilize and protect the newly restored banks from erosion. Much of this new vegetation will be overhanging,
providing shade and predator protection for fish and aquatic invertebrates. The newly planted riparian vegetation
will add significant organic matter to the lake substrate in the form of leaves and woody debris that fall and wash in,
providing an additional source of food, shelter and shade for aquatic invertebrates and fish. This increased
vegetation will also provide food and shelter for terrestrial insects, and in turn provide an additional food source for
birds and animals that feed upon them. The addition of riparian vegetation to this formerly near -barren site should
also help water quality by filtering pollutants, removing nutrients and reducing sediments in any runoff from the
adjacent upland development. The significantly smaller design of the proposed new dock as compared to the
structures removed, together with increased overhanging vegetation, may facilitate the migration of juvenile
salmon.
a MSA Barbee Mill Community Dock Project • 6
r
6. FISH OR WILDLIFE USE OF AREA
Birds:
Birds observed on or near the site include hawks, herons, eagles, quail, osprey, cormorants and songbirds. Before
the mill structures were demolished, an osprey nest was successfully relocated from the top of the old mill sawdust
collector to a platform built on a 25' pole over the water not far from the original nest site. The osprey have accepted
the new nest and a video camera records their activities for viewing over the Internet. Although the bald eagle is no
longer on the list of threatened or endangered species under the Endangered Species Act (ESA), bald eagles
continue to be protected by the Bald and Golden Eagles Protection Act and the Migratory Bird Treaty Act. The only
eagle nests observed near the project site are two nests approximately 0.65 mile from the site on the opposite shore.
Mammals:
The only wild mammals reported as observed in the area are deer.
Fish:
Salmonids observed at the site include salmon and trout. Salmonids known to be present in southern Lake
Washington include Puget Sound chinook salmon, coho salmon, sockeye salmon, steelhead trout, bull trout and
cutthroat trout. Puget Sound Chinook, Puget Sound steelhead and bull trout are all listed as threatened under the
ESA. Other fish observed at the site include bass, black crappie, bluegill, pumpkinseed sunfish, tench and yellow
perch. The shoreline remediation was designed to be consistent with Water Resource Inventory Area (WRIA) S
Conservation Plan recommendations. As a result of the remediation, shoreline that was previously unsuitable habitat
for fish and other aquatic life due to extensive shoreline modifications and industrial use of the site has been
restored. The restored gravel substrate and gently sloping bottom should provide favorable habitat for winter rearing
of salmon fry. The new gravel substrate should be suitable habitat for benthic invertebrates which would likely
attract juvenile Salmonids. The shallower water along the recently restored shoreline should provide some level of
protection from larger predators.
7. MEASURES TO PROTECT TREES AND VEGETATION
At the present time, the Study area has no living woody plant with a trunk six inches or greater in diameter or any
other plant falling within the definition of "Tree" in RMC 4-11-200. This is likely because of the prior asphalt
paving over, and industrial use of, the area and subsequent excavation and regrading in accordance with the
approved upland development plan. Trees will be planted within the Study area pursuant to the planting and
landscaping plan upon completion of the upland development site work. The "Tract E" parcel where the community
dock is proposed has already been developed with a community center and landscaping. Trees planted in
accordance with these landscaping plans have trunks less than six inches in diameter. By planting the remaining
i vegetation following completion of most of the major construction projects, trees and vegetation will be less likely
to be damaged during the construction process.
0 MSA Barbee Mill Community Dock Project • 7
i
100'
40
100' LAKE STUDY LINE
L
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Attachment 1
(!)EX I$JNG 1$"
TIM9ER -OG
(I)ExIST?NG 12" CCK LOG
Ex15T,,G :?-PPAF
OHWL 21,SC'(CC
1 A.AO'(N:.VOC
(2)EXISI NG TB-.
T1r1GLP _CGS
(1)EXISTiM1G 12" CC:P 10G-
ExIS'iNG .41-RAP
P90PCSEG FULLY
GRA t£J L'9G%i
i72' .�—
ISO'
159, FROM OHWM —_
(1)EX1STI91G 18'
TwBEP LOG
EI) EX1S11NG 12" CO;R LOG
EXIST!NC RinRk
P
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PLOT PLAN FOR LAKE STUDY
50' 25' 0' Sp'
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27
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29
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BARGEE MILL }
30 421I WILLIAMS AVE N
RENTON. WA. 48056
138.9"
EXISTING GRADE
EXISTING CONCRETE FOOTER
JOB Sf1E
4205 WILLIAMS AVE N
RENTON. WA. 96056
EXISTING ST9RM
WATER UNE
EXISTING NATIVE RIPARM VEGETATION
(SEE EXISTING UPLAND PLOT PL4f4 FOR DETAILS) }44
150.48' ...� i
31 BARGEE MILL
4175 VLLIAMS AVE N
RENTON. WA. 98056
32 i
4
33
REFERENCE
APPLICANT:CONNER HOMES AT BARB£E MILL LLC
PROPOSEO:INSTALL COMMUNITY DOCK
NEAR AT: REN TON
SHEET: I Of: 1
DATE! 3-1 1 —08 pwG
S MSA Barbee Mill Community Dock Project • 8
0
9
PROXE:T DESIGNED 6Y:
WaterfroBt Construction inc.
205 NE NORTHLAKE WAY, Suite 230
SEATTLE, WA, 99105 (206) 548-9800
Attachment 2
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VICINITY MAPAO SCALE
LEGAL DESCRIPTION
1/4 SEC: NW 32-24N-05E
TAXLOT #, 051850 0120 (PENDING)
TRACT E, PLAT OF BARBEE MILL,
RECORDED KING CO. BOOK 246 OF
PLATS, PAGES 25-39, RECORDING #
20080208000182. KING COUNTY,
WASHINGTON
OHWL DATUM- NAVD 68 (18.80') AND C,O.E. (21.So')
LAT; 47 31' 46"
LONG, —12T 12' 18"
IPOSE,.PRDVIDE COMMUNITY ACCESS FOR
WATER RELATED ACTIVITIES
UM: C.O.E. 0,0' EST 1919
AGENT OWNERS.
BARBEE MILL
4211 WILLIAMS AVE N
RENTON. WA. 98058
BARBEE MILL
4175 WILLtAMS AVE N
RENTON. WA, 98056
CONNER HOMES AT
BARBEE MILL LLC.
REFERENCE
K�NMORE
LAKE
FOREST
PARK
JUANITA
,-,•,1,','.-,
KIRKLAND
S20
MEDINA
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- -
BELLEVUE
I-94
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JOB
SITE
RENTON
AREA
MAP/
3 MILE 0 p MILES
I MILE
PROPOSED -,INSTALL
LOCATION ADDRESS; IN: LAKE WASHINGTON
NEAR; RENTON
RENTON. 42135NTON,.k8056 WILLIAMSAVE N COUNTY: KING STATE; WA
WA.
APPL DY;CONNER HOMES AT BARBEE MILL LLC.
05-3077—sLi-1 SHEET,1 OFt $ JDATEt3-11—OS
r MSA Barbee Mill Community Dock Project • 9
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MSA
Attachment 3
CONNER HOMES PROJECT OVERVIEW NOTES
THE PROPOSAL IS TO CONSTRUCT A COMMUNITY DOCK
THE DOCK WILL CONSIST OF A FULLY GRATED 6' X 172' (1,032SQFT) MAIN WALKWAY AND 8' X 56' (448SQFT) "T".
TOTAL SIZE OF THE FULLY GRATED DOCK WILL BE 1,480SOFT.
THE DOCK WILL BE SUPPORTED BY (4) 5", (12) 6" AND (8) 8" DIAMETER STEEL BATTERED INWATER PILES AND
(2)4" DIAMETER VERTICAL STEEL PILES INSTALLED UPLAN❑ OF THE OHWL.
A PLAN71NC PLAN OF NATIVE VEGETATION HAS BEEN INSTALLED ALONG THE RIPARIAN BUFFER IN CONJUNCTION WITH
THE UPLAND DEVELOPMENT, A COPY WILL BE PROVIDED FOR REVIEW BY LOCAL, STATE AND FEDERAL REGULATORY
AGENCIES.
ENVIRONMENTAL. CONSIDERATIONS FOR THE DESIGN OF THE COMMUNITY DOCK
THE DOCK SURFACE WILL BE FULLY GRATED TO ALLOW LIGHT TRANSMISSION TO REACH THE LAKE WATERS BELOW
AND REDUCE THE EFFECTIVE OVERWATER COVERAGE BY APPROXIMATELY 530SOFT
THE BOTTOM OF THE DOCK WILL BE 18" ABOVE THE DH'NL
THE SMALLEST NUMBER AND DIAMETER STEEL PILES WILL BE USED TO MINIMIZE THE AMOUNT OF STRUCTURE IN THE
WATER AND DISTURBANCE TO THE SUBSTRATE
GLU-LAM STRINGERS WILL BE USED TO ALLOW THE LONGEST SPANS POSSIBLE BETWEEN PILES
THE CONSTRUCTION BARGE WILL NOT BE ALLOWED TO CP.OUND OUT ON THE LAKE BOTTOM AT ANYTIME
A VIBRATORY PILE DRVER WILL BE USED. IF A DROP HAMMER IS REQUIRED FOR PROOFING OF PILES, SOUND
ATTENUATION MEASURES RECOMMENDED BY NOAA-FISHERIES AND U_ S. FISH AND WILDLIFE WILL BE IMPLEMENTED
INCLUDING A MINIMUM 6" BLOCK OF WOOD BETWEEN PILE AND DRIVER
CONSTRUCTION WILL TAKE PLACE DURING AUTHORIZED INWATER WORK WINDOWS DESIGNED TO PROTECT LISTED
SPECIES AND/OR CRITICAL HABITAT
ALL ❑OCK SECTIONS WILL BE PREFABRICATED AT THE CONTRACTOR'S LAKE UNION FACILITY AND DELIVERED TO THE
SITE VIA CONSTRUCTION BARGE
A PLANTING PLAN OF NATIVE VEGETATION HAS BEEN INSTALLED ALONC THE RIPARIAN BUFFER IN CONJUNCTION WITH
THE UPLAND DEVELOPMENT
SEPARATE INWATER AND ABOVE WATER WORK WINDOWS ARE REQUESTED
REFERENCE
APPLICANT: CONNER HOMES AT BARBEE MILL LLC
PROPOSED! INSTALL COMMUNITY DDCK
NEAR AT- RENTON
SHEET: 2 OF; 8
DATE- 3-11-08 ❑WG#:OS-3D77-A,2-1
Barbee Mill Community Dock Project • 10
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•
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P
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(1)EXISTING 18"
TIMBER LOG
(1)EXISTING 12" COIR LDG --�,
EXISTING RIPRAP�
OHWL 21,80'(0C
18.80'(NAVDE
(x)G TIMBER LOGS
(1)EXISTING 12" COIR LOG
EXISTING RIPRAF
(1)FXISTING 18"
TIMBER LOG
(1)EXISTING 12" COIR LOG -
EXISTING RIPRAP
29 7
(D
BARBEE MILL
30 4211 WILLIAMS AVE N
RENTON, WA. 438056
ti
138.9'
EXISTING GRADE
EXISTING CONCRETE FDOTER
JOB 517E
42U5 WILLIAMS AVE N
RENTON, WA. 95056
(SEE EXISTING UPLAND FLDT PLAN FCR UETAILS) 1
EXISTING S-DHY
WATER LINE
EXISTING NATIVE RIPARIAN VEGETATION
(SEE EXISTING UPLAND PLCT PLAN FOR DETAILS)
150.48, — —
ti
i Q
BARBEE
MILL 4175 LLIWS W AVE N
RENTON, WA, 981156
—15
32 I
B9.47'
PROPOSAL IS:
{ CONSTRUCT A FULLY GRATED COMMUNITY DOCK WITH A 6' X 172'
(1,032SOFT) MAN WALKWAY AND S' X 56' (448SOFT) '7". TOTAL SIZE OF
THE FULLY GRATED ❑DCK WILL BE 1,480SOFT
THE DOCK WILL BE SUPPORTED BY (4) 5 (12) 0" AND (8) 8- DIAMETER - -
STEEL BATTERED INWATER PILES AND (2)4" DIAMETER VERTICAL STEEL 9 -
PILES INSTALLED UPLAND OF OHWL, PLAN
PILES WILL BE INSTALLED USING A VIBRATORY PILE DRIVER TO PRACTICAL EXISTING PLOT PLAN APPLICANT: CONNER HOMES AT BARGEE MILL LLC
REFUSAL PRCPOSEOANSTALL COMMUNITY DOCK
{ A PLANTING PLAN OF NATIVE VEGETATION HAS BEEN INSTALLED ALONG THE 40' 30' 20' sO' o' 40'
RIPARIAN BUFFER IN CONJUNCTION WITH THE UPLAND DEVELOPMENT. A
COPY WILL BE PROVIDED FOR REVIEW BY LOCAL, STATE AND FEDERAL _ NEAR AT: RENTON
REGULATORY AGENCIES, SHEET: 3 OF, S
DATE- 3-11—OB IDWr#705-3077—A.4-1
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P (I )ETI�BER LOG 29
L (1)EXISTING 12' COIR LOC - -
EXISTING RIPRAP ( S
BARGEE MILL
4211 WILLIAMS AVE IN
OHWL 21.80'(COE)
30 RENTON, WA. W056
18.80'(NAVD88)
P
L
16'-6" (2)EXISTWG 10"
8, TIMBER LOOS EXISTING GRADE
(I)EXISTING 12" CO1R LOG i
- EXISTING CONCRETE FOOTER
EXISTING RIPRAP
9.47`
4205JQBIAMSTAVE IN
9'-6" 56 RENTON. INA, M056 I
Ir �
-E4. EXISTING STCRM
�PRDPO'SED FULLY WATER LINE 4
GRATED DOCK
172' EXISTING NATIVE RIPARIAN VEGETATION
17 180` (SEE EXISTING UPLAND PLOT PLAN FOR DETAILS)
169' FROM OHVM
P
(1)EXISTING 18"
TIMBER LOG
(1)EXISTING 12" COIR LOG Q }
EXISTING RIPRAP 31
1 BARBEE WILL
4175 WILLIAMS AVE N
RENTON, WA. 9BO56
P
32
I
PLAN
PROPOSED PLOT PLAN APPLICAINT:CONNER HOMES AT BARBEE MILL LLC
40' 30' 20' 1 D' D' 40' PRGPDSED: WSTALL COMMUNITY DOCK
NEAR AT- RENTON
SHEET, 4 OF, 8
DATE: 3-1 1 -08 DWG � 05-3077-A,3-1
D
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3
7
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Attachment 7
PROPERTY LINE
—
—
OHWL 21-80 (COE)
18.80 (NAV088)
f
(2)EXISTING 18' TIMBEREXISTING
LOGS
I
I SOIL
(1)EXISTING 12- COIR LDG
EXISTING, RIPRAP
I
EXISTING COBBLE
I
_
� EXISTING
-
(12) PROPOSLD 6"
CONCRETE
STEEL BATTERED PILING
FOOTER
56'
20' 0' 20' 20' 0' 20' 20'
I
=-
E'
-
-_
PROPOSED FULLY (4) PROPOSED 5"
/,EFI
I (2)PROPOSED
(8) PROPDSED 8" GRATED DOCK RATTERED PILING
I 4" STEEL
STEEL BATTERED PILING
I VERTICAL
UPLAND
I1 PILING
I 72
17'
180,
— — — 169' FROM OHW�
PROPERTY LINE NATIVE RIPARIAN VEGETAION
(SEE PLANTING PLAN)
PROPOSED DOCK DETAIL VIEW
SCALE: 1"=30'
PROPOSEmD FULLY
GRATED DOCK
OHWL21 .80'
NAV088
(18.8fl'}
(!)EXISTING 12' COIR LOG
���rv�cr�a�r ,c nuoro ,n.r
EXISTING
CONCRETE
"ALK" AY
EXISTING
CONCRETE
FOOTER
V ExIsrING
�
SOIL
EXISTING
/ RIP RAP
(2) PROPOSED
4' STEEL VERTICAL
.'PLAN- PI ING
'o' rnurw�u o -,-- 1'�� rnvrw�'
STEEL BATTERED PILING STEEL BATTERED PsuNG
STEEL EATTERED PILING L
PROPOSED DOCK
ELEVATION VIEW
30' 15' D'
3Or
REFERENCE
APPLICANT;CONNER HOMES AT BARBEE !MILL LLC
PROPOSED: INSTALL COMMUNITY DOCK
NEAR AT' RENTON
SHEET:6 OF: 8
DATE. 3-11-08 __. OWGJ; D5-3077-A.6-1
0 MSA Barbee Mill Community Dock Project • 14
Is
2'x4' NAILER ® GRATING
18" O/C MAX,
\ 1/4"
TYP. 7
Attachment 8
6'
PILE COVER
PLATE
CAP BEAM '
ASSEMBLY
6I
STAINLESS STEEL
DECK SCREWS
PROPOSED 5' DOCK SECTION A -A
SCALE: 3/4"-1'
s'
2"x4" NAILER 0 GRATING
18' O/C MAX.
STAINLESS STEEL
DECK SCREWS
�� 3/4" GALV,
THRU ROD 2"x6" RIM JOIST
2-x6' JOIST
0 2' O/C
PROPOSED 6' SECTION FRAMING
12" 6" 3" 0, I.
MATERIAL LIST
PART
SPECS
TREATMENT
PILING
4,5,6&8 STD WALL STEEL
EPDXY COATED OR HMG
CAPS
W6x15 "H" BEAM
HDG
CLU--LAMS
5 1/9"02" & 7 1/B"x1Z" DF
ACZA
JOIST
2'x6" DF #2 DR BTR
ACZA
RIM JOIST
2'x6" DF #2 DR BTR
ACZA
NAILERS
2'x4" DF #2 OR BTR
ACZA
GRATING
I THRU—FLOW MOLDED PLASTIC
NONE
IRARDWAREI
STEEL
I STAINLESS OR HDG
0 MSA
5-1/8"x12'
GLU--LAM BEAM
3/4" GALV.
LAG SOLT
/\_L=w_/OHWL 21.80' (COE)
OHWL 18"80' (NAVD 88)
5" OR 6" STEEL BATTERED PILING
I6d GALV. COMMON
NAILS (TYP)
5-1 /8"x 12"
GLU—LAM BEAM
3"x4' LEDGER
W/ 1/2"0" GALV.
LAG BOLT ® 16" O/C
NOTE.
ALL PILES TO BE DRIVEN TO PRACTICAL REFUSAL.
REFERENCE 1.
APPLICANT;CONNER HOMES AT GARBLE MILL LLC
PROPOSED, INSTALL COMMUNITY DOCK
NEAR AT: RENTON
SHEET; 7 OF; 6
DATE: 3-11-08 DWG - 05-3D77—A.7-1
Barbee Mill Community Dock Project • 15
i
0
2"x4" NAILER 0
18" O/C MAX_
2`x6' JOIST
0 T' O/C
WIFR4AL LIST
Attachment 9
PROPOSED 8' DOCK SECTION 8-8
SCAT L: 3/4's 1'
a
GRATING
3/4' GALV
THRU ROD
STAINLESS STEEL
DECK SCREWS
2'x6' RIM JOIST
PROPOSED 8' SECTION FRAMING
12' 6" 3' C' 1,
PART
SPECS
TREATMENT
PILING
4",5",6"&8' STD WALL STEEL
EPDXY COATED OR HDO
CAPS
W605 "H" BEAM
HDG
GLU—LAMS
5 1/8'x12" & 7 1/8%12' DF
ACZA
JOIST
2'x6' DF #2 OR BTR
ACZA
RIM JOIST
2`x6' DF #2 OR BTR
ACZA
NAILERS
2'x4' DF #2 OR BTR
ACZA
GRATING
THRU—FLOW MOLDED PLASTIC
NONE
HARDWARE
STEEL
I STAINLESS CH HDG
LU—LAM RFAM
/4' GALV.
1G BOLT
21.80' (COE)
18.80' (NAVD
Pi 11mr.
7-1/8'x12"
GLU—LAM BEAM
15d GALV.
COMMON
NAILS (TYP)
3"x4" LEDGER
W/ 1/2'x7' GALV.
LAG BOLT 0 16" O/C
NOTE.
ALL PILES TO BE DRIVEN TO PRACTICAL REFUSAL
REFERENCE it
APPUCANT.CONNER HOMES AT BARBEE MILL LLC
PRDPOSED' INSTALL COMMUNITY DDCK
NEAR AT,. RENTON
SHEET; 8 OF, 8
DATE-, 3-11—OS ❑WG#- 05-3077—A.8— I
40 MSA SoTbee Mill Community Dock Project • 16
i
F
0
Attachment 11
PLANT SCHEDULE
TREES
CITY BOTANICAL NAME _
__G,OMMON NAME
SIZE
COMMENTS
CERgQPHYLLUMJAPONi D-V
AATWPA TREE
IOHT
MLLTI-TFL114K
1
---PE—ELROPEAN
VN-IITE BIRpi
14 FR
SINGLE LE.a�R
tI
5
ACE R CRCINATLM
VINE MAPLE
291dHT.
MLLTI-TRWK
3@&'MT
2
ACERGRISELM
PAPERBARKMAP.E
13 HT.
SINGLE LEADER
H!
THLLIDPSIS 00LARRATA
FALSEARSORNTAE
BHT.
SHRUBS
CITY BOTANICAL NAME
CCMNION NAME
SIZE
SPACING
106
PENNISE T1311 ALOPECURCIX L:TILEE NY
LIT 111"kY W144TAIN ORASS
IGAL
WO.0
OILEXCRPJ4ATASOFTTOLGL
SOFT TOUCH HOLLY
IGAL.
0010C
23
ACANTHUSMOLLS
BEARS WE ECH
SGAL.
36'0C
��
{ t J'
4Y
MATTONWAOLIEQILM
DREGON GRIPE
5UAL
40'O.G
�%
13
C15TUS SALVIIFDlA15
SAGELEAFROOCROSE
5GAL
46'OC
52
CORNUS STpLONIFEAA%LLSL`^
KELSEY! EDTNiG DOGWOW
24'KT.
36'OC
��
27
HOSTA WACAMOLE'
OLACAMOLE HCbTA
IGAL
30'0C
SYNIPHORICARPOSALBLG
OCMMON SNpNBERRY
5GAL
42-OG
H'IDR4NGEAMACR01111LLA 'Lt IJAI:1101n'Yy
AIL SLIMMER SEAUTYHYCRANGEA
5GAL
3610.0
28
ELPHOFBIA POLYC ROMA
CLShrON SPLRGE
1GAL
I8'CC
\\\\�C1���CCCIYYLL7777..////JJJJy
O /j
43
HELLEBORLS CRENTA05
LENTEN R06E
1 C;AE
18' Or_
30
HEUCHERA MICRANTFEA PALACE PL.PPLF
CORALBELLS
IGAL
1810.0
T.i
LAVANQIIA ANOL151I1OLL4
ENGLISH LAVENDER
IGAL
18'01-
e
2Z
21
AGAIANTHL68LUE GIANT
H E M ERCCALIS 'CH ICAGO RCROEE'
"'LIE CANT AFRCA.NJLY
ROYAL ROBE 0411 ILY
2GAL.
IGAL
24'OC
24'QC
20
PERNETTYA MLCPONATA
HEATR
5GAL-
70'O.0
GROLINOCO+ERS
BOTANICALNAME
CCMMCNNAME
S2E
SPACING
®
PRATIA PEDONCllATA
BLUE STAR CREEPER
1 GAL
12' C C
®
FRAGARIACHILCENSIS
REACHSTRAWBERRV
1GAL
16'OC
ARGTQST-M'WO -LRSI
KINNIKINNIK
1GAL
IB-OC
{+ +F
COTONEASTERDAMMERI
UEMBERRYCOTONEASTE
ICAL
18'O.0
NOTE IERIGATION SYSTEM 1081 0, EF OESIGNEO°.LLYAUTOMATICANC
PRQdIBE FLLLODFERAE
REFERENCE
APPLICANT;CONNER HOMES AT BARGEE MILL LLC
PROPOSED' INSTALL C(IMMUNITY DOCK
NEAR AT: RENTON
SHEET: 2 OF; 2
DATE- 3-11—OB DWGR:OS-3077--PLANTING-2
a MSA Barbee Mill Community Dock Project • 18
•
i
9
t'A;; ,
Barbee Mill Community Dock Project
Army Corps of Engineers Reference #;"
)logical Evaluation
March 24, 2008
For:
Conner Homes at Barbee Mill LLC
Attn: Gary Upper
846 108th Avenue NE
Bellevue, WA 98004
Prepared by:
Marine Surveys Et Assessments
521 Snagstead Way
Port Townsend, WA 98368
Phone: (360) 385-4073, Fax: (360) 385-1724
E-mail: sea@cablespeed.com
6
List of Figures and Attachments
Figure Number Page
1. Vicinity map.......................................................................................12
2. Existing plot plan................................................................................13
3. Proposed plot plan............................................................................14
4. Proposed dock - plan and elevation views...................................15
•
5. Six-foot wide pier section view........................................................16
6, Eight -foot wide pier section view....................................................17
7. Existing upland plot plan..................................................................18
8. Planting plan......................................................................................19
9. Plant schedule...................................................................................20
10. Marbled murrelet summer aerial survey map...............................21
11. Marbled murrelet winter aerial survey map..................................22
Attachment Number Page
1. Aerial photograph of the site..........................................................23
• 2. Species list for King County
3. Essential Fish Habitat Assessment .............................................. 26-27
4. Assessment of Impacts to Critical Habitat
for Puget Sound Chinook........................................................... 28-29
5. Assessment of Impacts to Critical Habitat
for Coastal - Puget Sound Bull Trout .......................................... 30-31
• MSA Barbee Mill Community Dock Project • 2
i
Biological Evaluation
Barbee Mill Community Dock Project
I. PROJECT DESCRIPTION
A. Project location:
%4 Section NW32, Township 24N, Range 05E.
4205 Williams Avenue N.
Renton, WA 98056
Latitude: N 47*31'46" Longitude. W 122°12'18"
See Figure 1 for project location.
B. Project Description:
The proposed project is the construction of a community use dock intended to facilitate access to Lake Washington
for Barbee Mill community residents (Figures 2, 3 and 4). The Barbee Mill community is being developed by
Conner Homes at Barbee Mill LLC on the approximately 22 acre site of the former Barbee Mill Company lumber
mill. To restore the former industrial site to a parcel suitable for a residential waterfront subdivision, the mill
buildings were demolished; fill soils were removed from behind the bulkhead; asphalt paving, a pier, the wooden
bulkhead and piling associated with the mill operation were removed; and extensive shoreline restoration was
completed pursuant to sale of the site to Conner Homes. The shoreline restoration was completed by the Barbee
Mill Company in conjunction with vacation of the land. The community dock would be located at 4205 Williams
Ave N, Renton, WA 98056.
Upon completion, the Barbee Mill community will have 114 multi -story paired homes, a pond, walking trails and
lakefront open space for the use of residents. Lots 23 through 48 are lakefront lots; the property where the
community dock will be located is situated between lots 30 and 31. This parcel has approximately 90' of lakefront
with a sloping protective berm of rock about 5' high along the shoreline. A coin roll installed as part of the site
remediation extends along the toe of the berm witb a row of large logs along the shoreline just waterward of the coir
roll. A drainpipe outflow extends from the bank about midway along the subject property shoreline within a 15'
wide public drainage easement that crosses the parcel.
The proposed dock would provide convenient access to Lake Washington for residents of the Barbee Mill
community. In addition to a landing and day moorage facility for watercraft, the dock would be a suitable place for
launching canoes and kayaks, for sun-bathing, for swimming, fishing, water skiing and any number of other water
sports and activities.
The proposed dock will consist of a fully grated 6' x 172' (1032 ft2) main walkway and a 8' x 56' (448 ft2) "T"
section. The dock will be supported by (4) 5", (12) 6", (8) 8" battered inwater pilings and (2) 4" upland pilings
(Figures 4 - 6).
0 MSA Barbee Mill Community Dock Project • 3
C. Construction Sequence:
1 Mobilize construction barge to the site with all construction materials and equipment on board. Moor the
barge as to prevent grounding on the lake bottom at any time.
2. Install silt containment curtain around work area to contain any debris or suspended materials during pile
driving or pier installation.
3. Using the barge -based crane and vibratory insertion/extraction system, install (4) 5" steel piles, (12) 6" steel
piles, and (8) 8" steel battered piles and (2) 4" upland piles to practical refusal. If required, proof piles using a
drop hammer pile driver with a 6" minimum block of wood between pile driver and pile.
4. Cut steel piling as necessary at the appropriate elevation.
5. Install pre -fabricated pier and "T" sections onto pipe collar assembly and secure to piling.
6. Remove silt containment curtain and demobilize and dispose of all debris at approved upland disposal site.
ATTENTION: Fisheries alert? If at any time, as a result of project activities, fish are observed in distress, a fish kill
occurs, or water quality problems develop (including equipment leaks or spills), operations shall cease and the
WDFW at (360) 534-8233 and Washington Department of Ecology at (425) 649-7000 shall be contacted
immediately. Work shall not resume until further approval is given by the WDFW.
D. Action Area:
The action area should include the area within a one -mile radius of the project location. This area includes potential
turbidity and noise impacts from the construction process.
ll. SPECIES AND HABITAT INFORMATION
A. Species Information:
In the project area, the Puget Sound chinook (Oncorhynchus tshawytscha) is listed under the Endangered Species
Act as a threatened species according to the National Marine Fisheries Service (NMFS)(Federal Register, Vol. 64,
No. 56). On May 11, 2007. NMFS also listed the Puget Sound steelhead (Oncorhynchus myldss) as a threatened
species under the ESA (Federal Register / Vol. 72, No. 91 / Friday, May 11, 2007 / Rules and Regulations). Bull
trout (Salvelinus confluentus) were listed as threatened by the United States Fish and Wildlife Service (USFWS) in
October of 1999.
On September 2, 2005, NMFS issued the final rule designating critical habitat for 12 Evolutionarily Significant
Units (ESUs) of West Coast salmon, including the Puget Sound Chinook Salmon ESU and the Hood Canal
Summer -run Chum ESU. The project site is in an area designated as critical habitat for the Puget Sound Chinook
ESU (Federal Register / Vol 70, No.170 / Friday, September 2, 2005 Rules and Regulations). USFWS has
designated critical habitat in Lake Washington for Coastal -Puget Sound bull trout (Federal Register / Vol. 70, No.
185 / September 26, 2005 / Rules and Regulations).
0 MSA Barbee Mill Community Dock Project • 4
• Puget Sound Chinook: Puget Sound Chinook, also called the king salmon, are distinguished from all other Pacific
salmon by their large size. Most Chinook in the Puget Sound are "ocean -type" and migrate to the marine
environment during their first year (Myers et al. 1998). They may enter estuaries immediately after emergence
as fry from March to May at a length of 40 mm., or they may enter the estuaries as fingerling smolts during
May and June of their first year at a length of 60-80 mm. (Healey 1982). Chinook fry in Washington estuaries
feed on emergent insects and epibenthic crustaceans (gammarid amphipods, mysids, and cumaceans). As they
grow and move into neritic habitats, they feed on decapod larvae, larval and juvenile fish, drift insects, and
euphausiids (Simenstad et al. 1982). These ocean -type chinook use estuaries as rearing areas and are the most
dependent of all salmon species on estuaries for survival.
Adult chinook migrate through Lake Washington to reach spawning grounds in the Cedar and Sammamish
Rivers and Issaquah Creek.
Juvenile salmonids leaving the Cedar River are found primarily in the south end of Lake Washington from
January to May, mostly in the littoral zone (Tabor et al. 2004).
Bull Trout: Coastal -Puget Sound bull trout have ranged geographically from northern California (at present they
! are extinct in California) to the Bering Sea coast of Alaska, and northwest along the Pacific Rim to northern
Japan and Korea. Bull trout are members of the char subgroup of the salmon family. Spawning occurs typically
from August to November in streams and migration to the open sea (for anadromous populations) takes place in
the spring. Eggs and juveniles require extremely cold water for survival. Temperatures in excess of about 15
degrees C are thought to limit bull trout distribution (Rieman and McIntyre 1993). They live both in fresh and
marine waters. Some migrate to larger rivers (fluvial), takes (adfluvial), or saltwater (anadromous) before
returning to smaller streams to spawn. Others (resident bull trout) complete all of their life in the streams where
they were reared. Habitat degradation, dams and diversions, and predation by non-native fish threaten the
Coastal -Puget Sound population. The Coastal -Puget Sound bull trout population is thought to contain the only
anadromous forms of bull trout in the contiguous United States (Federal Register, Vol. 64, No. 210, 1999).
Two subpopulations of bull trout are considered within the Lake Washington area: the Chester Morse Reservoir
subpopulation and the Issaquah Creek-Sammamish River population (Federal Register, Vol. 64, No. 210, 1999).
"Only two `native char' have been observed during the past 10 years in the Issaquah Creek drainage and none
have been observed in the Sammamish River system, which area occupied by the Sammamish River -Issaquah
Creek subpopulation. It is questionable whether a viable subpopulation remains." (Federal Register, Vol. 64,
No. 210, 1999).
Puget Sound steelhead: Wild winter steelhead enter the Lake Washington system in mid -December with peak
spawning taking place in May. There have been high rates of predation by California sea lions at the Ballard
Locks, which is one of the leading factors in the declining steelhead production in the Lake Washington system
(1992 Washington State Salmon and Steelhead Stock Inventory. Appendix One - Puget Sound Stocks.
Washington Department of Fish and Wildlife, Olympia, WA.).
•
According to Sam Wright, a retired state fishery manager, "In the Lake Washington system, they're functionally
extinct." (Quoted in an article by Robert McClure in the Seattle Post-Intelligencer, March 30, 2006). McClure
states, "Fifty or fewer adult steelhead have returned to the Lake Washington/Cedar River ecosystem in the past
four years."
Marbled Murrelets: Marbled murrelets are small marine birds in the alcidae family. They spend most of their time
at sea and only use old growth areas for nesting. In the critical nesting areas, fragmentation and loss of old
growth forest has a significant impact on the survival and conservation of the species (WDW, 1993). Adult
birds are found within or adjacent to the marine environment where they dive for sand lance, sea perch, Pacific
herring, surf smelt and other small schooling fish, and feed on invertebrates. Annual aerial surveys for marbled
Murrelets (Marine Bird and Mammal Component of the Puget Sound Ambient Monitoring Program, WDFW)
indicate that no marbled murrelets make use of nearshore habitat in the project area (Figures 10 and 11). There
are no documented nests or old growth nesting habitat near the project site, (Nordstrom, pers. Comm.).
40 MSA Barbee Mill Community Dock Project • 5
111. EFFECTS OF THE ACTION
The status of each of the listed species in the action area has been provided. The proposed project has been
described and the action area defined. When reviewing all the data, the potential direct and indirect effects of the
proposed action on the listed species and their critical habitat should be considered.
A. Direct Effects:
When considering the direct effects of the proposed project, one must determine if the proposed project will
immediately reduce or destroy the listed species and/or their habitat. The potential, direct impacts caused by the
construction process include increased noise and turbidity.
Pile driving noise: A vibratory pile driver will be used in the proposed project. If required, piles will be "proofed"
using a drop hammer pile driver with a 6" minimum block of wood between pile driver and pile. Feist et al.
(1992) reported that salmonids could be expected to hear pile driving noise approximately 2,000' from the
source. Based on the studies at the Everett Homeport, these researchers concluded that pile driving did alter the
40 distribution and behavior of juvenile pink and chum salmon. However, the Everett Homeport results may not be
entirely applicable to the proposed project, because a diesel powered compression hammer was used in that
study. As stated in the Feist report, "It would be reasonable to say that juvenile salmonids might respond
differently to the sounds of a vibratory hammer, compared to that of a diesel compression hammer."
As noted above, annual aerial surveys for marbled murrelets indicate that no murrelets have been seen near the
Lake Washington project area during either the summer or winter. Therefore, the construction process should
cause no impacts on marbled murrelets.
Turbidity: Increased turbidity caused by pile driving, pile removal and bulkhead replacement could, under certain
circumstances, have adverse effects on salmon and bull trout. The effects depend on duration of exposure,
concentration of turbidity and the life stage of the salmon during the increased exposure. The effects can be
discussed in terms of lethal, sublethal or behavioral (Nightingale and Simenstad 2001a and Simenstad, editor,
1983). A silt containment curtain will be installed in the project area to contain and minimize turbidity impacts.
To minimize the adverse effects of increased turbidity and noise on migrating salmonids and bull trout, inwater
construction work will take place during the approved work window from July 16 to December 31. Overwater work
can proceed outside of the inwater work window.
B. Indirect Effects:
Indirect effects are effects of the project that occur later in time. For this project, indirect effects might include
1� alteration of juvenile salmon migratory pathways, increase in salmonid predation and reduction in prey resources
and refugia due to shading of the epibenthic substrate by the structure.
Migratory pathway alteration: There were no studies specifically investigating the effects of piers on salmonid
migration in lakes cited by Kahler et al. (2000) in their review of pier -related impacts in lakes. Concerning the
lake environment, Kahler et al. (2000) state, "The question remains whether juvenile salmonids in lakes migrate
under, or otherwise utilize, piers, or if they avoid them and/or traverse their perimeter."
However, in the marine environment, it is generally accepted that overwater structures can alter migration
behavior of juvenile salmon (though the effects may vary depending on the design and orientation of the
structure, degree of shading, and the presence of artificial light), and reduce salmon prey resources and refugia
by shading aquatic plant life (Simenstad et al. 1999; Nightingale and Simenstad 2001b). However, the
significance of these effects is not clear. As Simenstad et al. state, "We found no studies that described
empirical evidence supporting or refuting that modification of juvenile salmon behavior in shoreline habitats
was reflected in changes in survival." Nightingale and Simenstad (2001b) state, "Presently, although we know
0 MSA Barbee Mill Community Dock Project • 6
that under some conditions small juvenile salmon will delay or otherwise alter their shoreline movements when
encountering an overwater structure, the conditions under which this behavioral modification is significant to
the fishes' fitness and survival is relatively unknown."
A study by Williams et al. (2003) at the Mukilteo ferry terminal, found that, "Salmon fry were observed in all
nearshore habitats during each transect sampling period (day and night). The fry were observed under a wide
range of PAR values (0.0 µmol m-2 s-1 to 2370 µmol m-2 s-1). Fry were observed both outside the terminal
and underneath the terminal at all times, and shadows produced by the 10-m-wide terminal structure did not
appear to act as barriers to fry movement at this location."
There is no question that underwater structures may alter migration patterns — that is not in dispute. As seen in
the study by Williams and in many other studies (see the recent literature review by Weitkamp - 2003), there
are studies that indicate that salmon migration is not affected by the presence of overwater structures. Of course,
there are other studies indicating migration patterns are altered by overwater structures.
The issue is that no one has shown that these migration changes lead to increased mortality or decreased fitness.
None of the studies that report changes in salmonid migration patterns caused by overwater structures in the
marine environment have reported that these changes have a negative impact on sahnonids.
Increased predation and shading impacts on primary production: Shading caused by overwater structures can
reduce aquatic macrophytes and other epibenthic organisms resulting in reduced primary production..
An additional concern about the impacts of overwater structures on migrating salmon is that they will be forced
to move out into deeper water, where they will be consumed by predatory fish species. However, in a study
conducted in the marine environment, Williams et al. (2003) noted:
We found no evidence that avian, marine mammal, or fish predators consumed more juvenile salmon
near WSF terminals than along shorelines without overwater structures. Few species appeared to be
targeting abundant fry in nearshore habitats, and we observed only two occasions in which predators
(one tern sp., one staghorn sculpin) had consumed juvenile salmon.
The authors also state,
Our analysis of fish diets at the Mukilteo ferry terminal provides one piece of conclusive evidence that
juvenile salmon were not a major dietary component of predatory fish species during our study.
It should be noted that the Williams study was conducted in the marine, not lake, environment.
In Lake Washington, smallmouth bass migration into the littoral zone corresponds with the peak occurrence of
migrating salmonids in this zone (Fresh et al. 2001). Because of these similar migration patterns, salmonids are
most at risk of predation from smallmouth bass in Lake Washington. Bass prefer complex, natural cover for
their foraging environment. When there is a scarcity of natural cover for foraging, as is the situation in Lake
• Washington, they tend to use the dominant structures in the environment, such as pilings and piers, for foraging
cover (Kahler et al. 2000). There is concern that increasing the number of overwater structures will increase the
predation success of smallmouth bass on migrating salmonids.
Tabor et al. (2004) investigated predation of juvenile chinook salmon in three areas of the Lake Washington
Basin. One of the areas they looked at was the south end of Lake Washington, an important rearing area. The
investigators found that:
The only predators observed to consume Chinook salmon were cutthroat trout, prickly sculpin (C. asper),
smallmouth bass (Micropterus dolomieui), and largemouth bass (M.. salmondds)_ Consumption of Chinook
salmon by cutthroat trout was observed in February, March and early April. Predation by prickly sculpin
was only observed in February. Smallmouth bass consumed Chinook salmon in May and June. Few
largemouth bass were collected; however, we did document a largemouth bass that had consumed a
Chinook salmon in June. We estimated a total of 1,400 Chinook salmon fry were consumed by littoral
predators from February to mid May..... Based on consumption estimates and expected abundance of
0) MSA Barbee Mill Community Dock Project • 7
juvenile Chinook salmon, predatory fishes probably consumed less than 10% of the fry that entered the lake
from the Cedar River.
The investigators in this study did not comment on the impacts of overwater structures on the predation rate found
in south Lake Washington.
The following design components will reduce foraging cover and allow more light penetration under the proposed
dock.
1. The proposed dock will be fully grated.
2. The bottom of the proposed dock will be 18" above OHWL.
3. The smallest number and diameter steel pilings will be used to minimize the structure in the water and the
disturbance caused by pile driving.
4. Glu-lam stringers will be used to allow the longest possible spans between pilings.
C. Interrelated/Interdependent Effects:
Completion of this project will not promote future construction or other activities that would not otherwise occur
without its completion. Therefore, no additional interrelated or interdependent actions that could affect species
regulated under ESA will occur because of this project.
D. Take Analysls:
"Take" is defined as, "to harass, harm, pursue, hunt, shoot, wound, trap, capture, collect or attempt to engage in any
such conduct." The USFWS further defines "harm" as "significant habitat modification or degradation that results
in death or injury to listed species by significantly impairing behavioral patterns such as breeding, feeding, or
sheltering." It is likely that no "take" will result from this project.
E. Conservation Measures:
In order to minimize any direct effects on the listed species caused by this project, inwater work should take place
between July 16 and December 31. Additional impact reduction and mitigation measures will reduce adverse
impacts of the project. They include:
1. The proposed community dock will be fully grated.
0 2. The bottom of the proposed dock will be 18" above OHWL.
3. The smallest number and diameter steel pilings will be used to minimize the structure in the water and the
disturbance caused by pile driving.
4. Glu-lam stringers will be used to allow the longest possible spans between pilings.
5. A silt containment curtain will be installed before construction begins to contain any debris that may fall into
the water.
6. A vibratory pile driver will be used. If a drop hammer is required for proofing, sound attenuation measures
recommended by NOAA-Fisheries and U. S. Fish and Wildlife will be implemented.
7. Native vegetation has been installed along the shoreline in conjunction with upland development (Figures 8
and 9).
Ob MSA Barbee Mill Community Dock Project • 8
F. Determination of Effect:
After reviewing the appropriate data and surveys, the effect determinations for the impacts of the project, as
designed, are:
1. Puget Sound chinook —"May affect, not likely to adversely affect"
2. Bull trout — "May affect, not likely to adversely affect"
I Puget Sound steelhead -"May affect, not likely to adversely affect"
4 Marbled murrelet — "No effect"
This is the appropriate conclusion when effects on the species and their critical habitat are expected to be beneficial,
discountable or insignificant. Limiting construction work to the approved work window will reduce direct impacts
on the listed species. Shading impacts on the benthic environment will be minimized by the conservation measures
discussed above.
MSA Barbee Mill Community Dock Project • 9
•
References
In addition to literature review, several people contributed information to this study. Regional scientific knowledge
aided with the understanding of important ecological systems within the project area. The individuals referenced are
listed below.
Nysewander, Dave. WDFW, Puget Sound Ambient Monitoring Program. Project leader, Marine Birds and
Mammals, Olympia, WA.
Literature
Federal Register / Vol. 61, No. 102 / May 24, 1996 / Rules and Regulations.
Federal Register / Vol. 64, No. 56 / March 24, 1999 / Rules and Regulations.
Federal Register / Vol. 64, No. 210 / November 1, 1999 / Rules and Regulations.
Federal Register / Vol 70, No.170 / Friday, September 2, 2005 / Rules and Regulations.
Federal Register / Vol. 70, No. 185 / September 26, 2005 / Rules and Regulations.
Federal Register / Vol. 72, No. 91 / Friday, May 11, 2007 / Rules and Regulations.
Feist, Blake E., J.J. Anderson and R. Miyamota. 1992. Potential impacts of pile driving on juvenile pink
(Gncorhynchus gorbuscha) and chum (O. keta) salmon behavior and distribution. FRI-UW-9603, Fish. Res.
Inst., UW, Seattle, WA.
Fresh, K. L., D. Rothaus, K. W. Mueller and C. Mueller. 2001. Habitat utilization by predators, with emphasis on
smallmouth bass, in the littoral zone of Lake Washington (draft). WDFW.
Healey, M. C. 1982. Juvenile Pacific salmon in estuaries: the life support system, pp. 315 - 341. In: V.S. Kennedy
(ed.), Estuarine comparisons. Academic Press, New York, NY,
Kahler, T., M. Grassley and David Beauchamp. 2000. A summary of the effects of bulkheads, pier and other
artificial structures and shorezone development on ESA -listed salmonids in lakes. City of Bellevue.
Myers, J. M., R. G. Kope, G. J. Bryant, D. Teel, L. J. Lierheimer, T. C. Wainwright, W. S. Grand, F. W. Waknitz,
K. Neely, S. T. Lindley, and R. S. Waples. 1998. Status review of Chinook salmon from Washington, Idaho,
Oregon, and California. U.S. Dept. of Commerce, NOA,4 Tech Memo. NMFS-NWFSC-35, 443 pp.
Nightingale, Barbara and Charles Simenstad. 2001 a. Dredging activities: marine issues. Submitted to Washington
Department of Fish and Wildlife, Washington Department of Ecology, and Washington State Department of
Transportation, Olympia, WA, 144 pp.
Nightingale, B. and Charles Simenstad. 2001b. Overwater structures: marine issues. Submitted to Washington
Department of Fish and Wildlife, Washington Department of Ecology, and Washington State Department of
Transportation, Olympia, WA, 177 pp.
Rienman, B. E. and J. D. McIntyre. 1993. Demographic and habitat requirements for conservation of Bull Trout.
Gen. Tech. Rpt. U. S. Forest Service, Intermountain Research Station, Ogden, UT. 38 pp.
Simenstad, C. A., K. L. Fresh and E. O. Salo. 1982. The role of Puget Sound and Washington coastal estuaries in
the life history of Pacific salmon: an unappreciated function. Pp. 343-364. In: V. S. Kennedy, (ed.), Estuarine
comparisons. Academic Press, New York, NY.
ft MSA Barbee Mill Community Dock Project • 10
Simenstad, C. A., (ed_). 1988. Effects of dredging on anadromous Pacific coast fishes, Workshop proceedings,
Washington Sea Grant, Seattle WA, September 8-9, 1988.
Simenstad, C.A., B.J. Nightingale, R.M. Thom and D.K. Shreffler. 1999. Impacts of ferry terminals on juvenile
salmon migration along Puget Sound shorelines. Phase 1: Synthesis of state of knowledge. Report to
WSDOT/TJSDOT Research Report T9903, Task A2, 116 pp. + appendices.
Tabor, A., M. T. Celedonia, F. Mejia, R. M. Piaskowski, D. L. Low, B. Footen and L. Park. 2004. Predation of
juvenile chinook salmon by predatory fishes in three areas of the Lake Washington Basin. U. S. Fish and Wildlife
Service, Muckleshoot Indian Tribe and Northwest Fisheries Science Center.
Washington Department of Wildlife (WDW). 1993. Status of the marbled murrelet Brachyramphus marmoratus in
Washington. Unpubl. Rep. Wash. Dept. Wildl., Olympia, WA.
Weitkamp, Don E. September 2003. Young Pacific Salmon in Estuarine Habitats. Review Draft. Parametrix, Inc.
Kirkland, WA.
. Williams, G. D., R. M. Thom, D. K. Shreffler, J. A. Southard, L. K. O'Rourke, S. L. Sergeant, V. I. Cullinan, R.
Moursund, and M. Stamey. Assessing Over -water Structure - Related Predation Risk on Juvenile Salmon: Field
Observations and Recommended Protocols. September 2003. Prepared for the Washington State Department of
Transportation Under a Related Services Agreement With the U.S. Department of Energy Under Contract DE-
AC06-76RLO 1830.
•
0 MSA Barbee Mill Community Dock Project • 11
•
Figure 1. Vicinity map
PROJECT oEMcNeD 6Y�
Waterfront Construction Inc.
205 NE NORTHLAKE WAY, Suite 230
SEATTLE. WA- 98105 (206) 540-9800
2 i "'
F{ x SC7Eipst �3
f.;
K q , �tl,+ f 11 '- a SC.7 Fq —
a q l r_
-
.:� sg 79t
`se8QM
seE
' c
f �
N'38tfi St. NY3M StNC 38th 11---1--,5
Ne 3Bth St
NU7th, St� ; , lw
�E 37 Llrxowci Ne w
r� 36t1;
N�36th 5-- t—--.'-92967 hsap4uest kc.\02007NAyT64
VICINITY MAP/NO SCALE
LEGAL DESCRIPTION
1/4 SEC: NW 32-24N-05E
TAXLOT J, 051850 0120 (PENDING)
TRACT E, PLAT Of' BARBEE MILL,
RECORDED KIING CO. 60DK 246 OF
PLATS, PACES 25-39, RECORDING )j
20080208000182. KING COUNTY,
WASHINGTON
OHWL DATuIvk NAvD 88 (18,80') AND CO.E. (21.80')
LAT, 47 31' 46"
LONG: -127 12' 18"
WATER RELATED AC
DATUM: C,O. E. D.0' EST 19 i 9
ADJACENT OWNERS:
1� BARBEE MILL
4211 WILLIAMS AVE N
RENTON. WA. 98055
2 BARBEE MILL
4175 WILLIAMS AVE N
RENTON, WA. 9BO56
ACCESS
KENMORE
LAKE
FOREST
PARK
JUANITA
KIRKI AND
Ld
MEDINA
BELLEWE
I-90
X.
S
JOB SITE ;=
RENTON
J AREA MAP/
3 MILE 0 MILES
1 MILE
PRCJECT NAME: PROPOSED: INSTALL COMMUNITY DOCK
CONNER HOMES AT
BARBEE MILL LLC
REFERENCE
SITE LOCATION ADDRESS: IN: LAKE WASHINGTON
4205 WILLIAMS AVE IN
NEAR: RENTON
RENI'ON, WA, 98056 COUNTY: KING STATE; WA
APPL 6Y.CONNER HOMES AT BARBEE MILL LLC
fGl: 05-30Tl—A,1 — i 11 SHEET: 1 OF: 8 DATE-.3-11 —08
! MSA Barbee Mill Community Dock Project • 12
•
0
03
CID
(E1
n
0
3
3
C
3
Z
0
0
(7
—0.
n
W
P (1)ETIMBER LOGS
(f )EXISTING 12" COIR LDG 1
EXISTING RIPRAP—
OHWL 21,80'(CCE)
18,80'(NAVDes)
P
(2)O TIMBERLDGS---
(1)EXISTING 12" COIR LOGS
EXISTING RIPRAP—
(I)EXISTING 18"
TIMBER LOGS
(1)EXISTING 12" COIR LOG —
EXISTING RIPRAP-
P
89,47'
4
29
Q
BARBEE MILL
421 1 WILLIAMS AVE N
30 RENTON, WA. 98056 y
h
138.9
-EXISTING GRADE
.EXISTING CONCRETE FDOTFR
JOB SITE 90.2'I
4205 WILLIAMS AVE N
RENTON, WA, 98056
(SEE EXISTING UPLAND PLOT PLAN FOR ❑ETAILS)
EXISTING STORM
WATER LINE
EXISTING NATIVE RIPARIAN VEGETATION
(SEE EXISTING UPLAND PLOT PLAN FOR DETAILS) I
150.48' _ I4
I
2
31 BARBEE MILL
4175 WILLIAMS AVE N
RENTON, WA, 980515
32 ti
PROPOSAL 15;
< CONSTRUCT A FULLY GRATED COMMUNITY DOCK WITH A B' X 172'
(1,032SOFT) MAIN WALKWAY AND 8' X 56' (44$SQFT) 'f". TOTAL SIZE Of
THE FULLY GRATED DDCK WILL BE 1 ,480SOFT
( THE DOCK WILL BE SUPPORTED BY (4) 5", (12) 6" AND (8) 8" DIAMETER
STEEL BATTERED INWATER PILES AND (2)4' DIAMETER VERTICAL STEEL
PILES INSTALLED UPLAND OF OHWL.
( PILES WILL BE INSTALLED U5NG A VIBRATORY PILE DRIVER TO PRACTICAL EXISTING PLOT PLAN
REFUSAL
( A PLANTING PLAN OF NATIVE VEGETATION HAS BEEN INSTALLED ALONG THE 40' 30' 20' 10' 0' 40
RIPARIAN BUFFER IN CONJUNCTION WITH THE UPLAND DEVELOPMENT. A
COPY WILL BE PROVIDED FOR REVIEW BY LOCAL, STATE AND FEDERAL
REGULATORY AGENCIES,
REFERENCE
APPUCANT:CDNNER HOMES AT BARBEE MILL LLC
PROPOSED: INSTALL COMMUNITY DOCK
NEAR AT-. RENTON
SHEET; 3 OF: 8
DATE: 3-11-08 DWG '05-3377-A.4-1
f
P (I)EX ISTINO 18- 29
TIMBER L0G 4
L— (1)EXISTING 12 COIR LOC - -
EXISTING RIPRAP O S
OAREIEE MILL
4211 WILLIAMS AVE N
OHWL 21,80'(COE)
RENTON, WA. 98056
18.80'(NAVD88)
(2)EXISTINC 18"
TIMBER LOGS EXISTING GRADE
- 8.
(1)EXSSTING 12- COIR LOG
EXISTING CONCRETE fOdTER
EXISTING RIPRAP
= 9.47'
_ ,SOB SITE
4205 WILLIAMS AVE N
89'-6" 56' RENTON. WA, 98056
EXESTING STORM
PROPOSED FULLY WATER LINE
GRATED DOCK
172' EXISTING NATIVE RIPARIAN VEGETATION
17' 1B0' (SEE EXISTING UPLAND PLOT PLAN FOR DETAILS)
169' FROM OFIWM
P — r 150.48'
L—
(1)EXISTING 18'
TIMBER LOG
m (1)EXISTING 12" COIR LOG 2�
13EE MILL
Q EXISTING RIPRAP 4175 WILLLIAMS AVE N
(D RENTON, WA. 9B0515
cb P
;7
3 32
C
3
0
REFERENCE
PROPOSED PLOT PLAN APPLICANT:CONNER HOMES AT BARBEE DILL LLC
O 40' 30' 20' 14' O' 40' PROPOSED:;NSTALL COMMUNITY DOCK
CD
fl
NEAR AT' RENTON
SHEET: 4 OF; fi
p DATE: 3-1 1-0$ JOWC#c 05-3077--A,3-1
0
0
HWL2I.BD'
NAVDH8
18.80')
i
I¢_=
aauea
0
Figure 4. Proposed dock - plan and elevation views
PROPERTY LANE
OHWL 21.ti4 (COE)
!
,8.80 (NAVD8")
I
(2)EXISTING 18TIMBER LOGS
I�
EXISTING
SOIL
(1)EXISTING 12- COIR LOG
�I
{
EXISTING RIPRAP
EXISTING COBBLE
I EXISTING
(12) PROPOSED 6"
STE20' --1 ---� ^E20 BATTERED P20N 2G 20
I
r CONCRETE
I/ FOOTER
PROPOSED FULLY (4) PROPOSED 5 � I (2)PROPOSED
PROPOSED B•• GRATED DOCK STEEL BATTERED PILING I 4" STEEL
:L BATTERED PILING I VERTICAL
UPLAND
i f PILING
172
180'
169' FROM OHWM
PROPERTY LINE NATIVE RIPARIAN VEGETAION
(SEE PLANTING PLAN)
PROPOSED DOCK DETAIL VIEW
SCALE: 1"=30'
169' FROM OHWM
1 SD'
372'
EXISTING
CONCRETE
WALKWAY
EXISTING
CONCRETE
FOOTER
\ \jv EXISPNG
SOIL
EXISTING
RIP RAP
(2) PROPOSED
4' STEEL VERTICAL
` (8) PROPOSED 8- I,W PHVFvaLu o STEEL BATTERED PILING UPLAND PILING
STEEL BATTERED PILING STEEL BATTERED PILING
PROPOSED DOCK ELEVATION VIEW
30' 150' 30'
REFERENCE
if -
APPLICANT; CONNER HOMES AT BARBEE MILL LLC
PROPOSED' INSTALL COWMLINITY DOCK
NEAR AT! RENTON
SHEET: 6 OF; 0
DATE' 3-11-08 DWG -05-3077—A.6-1
PROPOSED FULLY
GRATED DOCK
(1)EXISTING 12" COIR LOG
(71FYICTING 1 FL" Tk AARFR LOGS
0 MSA Barbee Mill Community Dock Project • 15
•
0
Figure 5. Six-foot wide pier - section view
2"x4" NAILER 0 GRATING
18' 0/C MAX.
1/4"
TYP.` J-
PILE COVER
PLATE
CAP BEAM I
ASSEMBLY
6
1
STAINLESS STEEL
DECK SCREWS
PROPOSED 6' DOCK SECTION A -A
SCALE: 3/4'-1'
6`
2"x4' NAILER ® GRATING
18' 0/C MAX,
STAINLESS STEEL
DECK SCREWS
3/4" J THRO ROD 2"4' RIM JOIST
2'x6' JOIST
0 2' O/C
PROPOSED 6' SECTION FRAMING
12- 6" 3" 0' 1'
UATFRIAL LIST
PART
SPECS
TREATMENT
PILING
4*,5',6"&B" STD WALL STEEL
EPDXY COATED CR HDG
CAPS
W5x15 "H` BEAM
HOC
GLU—LAMS
5 1/8"x12" & 7 1/CO2" DF
ACZA
,JOIST
2 x6" DF #2 OR BTR
AC ZA
RIM JOIST
2'x$' DF #2 OR BTR
ACZA
NAILERS
2%4" DF #2 DR BTR
ACZA
CRATING
THRU-FLOW MOLDED PLASTIC
NONE
HARDWARE
STEEL
I STAINLESS CR HDG
5-1/8"x12-
GLU-LAM BEAM
3/4- GALV.
LAG BOLT
1'-6"
jOHWL 21,80' (COE)
OHWL 18,80' (NAVD 88)
5" OR 6" STEEL BATTERED PILING
16d GALV. COMMON
rNAILS MP)
5-1 /8"x 12"
IGLU —LAM BEAM
5%4" LEDGER
W/ 1/2%7" GALV,
LAG 19OLT a 16" ❑/C
NOTE:
ALL PILES TO BE DRIVEN TO PRACTICAL REFUSAL.
REFERENCE
APPLiCANT;CONNER HOMES AT BARBEE MILL LLC
PROPOSED, INSTALL COMMUNITY DOCK
NEAR AT'. RENTON
SHEET. 7 OF: B
DATE, 3-11-08 1 DWG -. 05- 3077-A. 7- 1
0 M5A Barbee Mill Community Dock Project • 16
•
Im
Figure 6. Eight -foot wide pier - section view
STAINLESS STEEL
2"x4" NAILER GRATING DECK SCREWS 7-1/8'x12"
18' O/C MAX, GLU—LAM BEAM
LIU 3/4" GALV.
LAG BOLT
CAP BEAM
ASSEMBLY 2'-6"
1/4" P1LE CDVER 6I
TYP. PLATE
1
PROPOSED 8' DOCK SECTION B-B
SCALE: 3/4"+ 1
8
2'x4" NAILER 0 GRATING
18' O/C MAX_
/� �OHWL 21,80' (COE)
OHWL 16,80' (NAVO 88)
8" STEEL BATTERED PILING
STAINLESS STEEL
DECK SCREWS
3/4" GALV.
THRU ROD 2"x8' RIM JOIST
2"x6' JOIST
@ 2' O/C
PROPOSED 8' SECTION FRAMING
12" 6" 3" C. 1
k&7FRo1L LEST
PART
SPECS
TREATMENT
PILING
4',5",6'&8' STD WALL STEEL
EPDXY COATED OR HDG
CAPS
W$x15 "H" BEAM
HOG
GLU—LAMS
5 1/8"x12" & 7 1/8"02' OF
AC7A
JOIST
2"x6" DF #2 OR BTR
ACZA
RIM JOIST
2"x6" DF #2 OR BTR
ACZA
NAILERS
2"x4" DF #2 OR BTR
ACZA
GRATING
THRLI—FLOW MOLDED PLASTIC
NONE
HARDWARE
STEEL
I STAINLESS CH HDG
7-1/8"x12"
GLU—LAM BEAM
15d GALV.
COMMON
NAILS (TYP)
3"x4" LEDGER
W/ 1/2"x7' GALV.
LAG BOLT 0 16' O/C
NOTE:
ALL PILES TO BE DRWEN TO PRACTICAL REFUSAL
REFERENCE
APPLICANT;CONNER HOMES AT BARGEE MILL LLC
PROPOSED -INSTALL CCMMLINITY DOCK
NEAR/AT' RENTON
SHEET: 8 OF; 8
DATE' 3-11-08 OWc - 05-3077—A.8-1
Ile MSA Barbee Mill Community Dock Project - 17
- It WNPI�r
�� ����� � yam•,
0
Figure 9. Plant schedule
PLANT SCHEDULE
TREES
OiY BOTANICALNAM COMMON NAME SIZE CCMMENTS
1 CEROPP"YCLUNI J4POMCLM
KATSUHA THEE
1OHT MLLTI.TKNK
t HLYLLA PENDLLA
ELROPEAN YMITE PJRDH
10 HT. SNGLE LEADER
5 ACERQRCNATI-M
VINE MAPLE
2@IOFR MLLTI-TRW(
3(*B'HT,
2 ACERCRISEL.M
PAPERagKMAPLE
ISHT SINGLE LEADER
10 THU.IOPSQ DOLABRATA
FALSEAPEORMTAE
B'HT.
SHRM
OTY BOTANICAL NAME
LONNION NAME
SIaE
SPACNG
IOp
PENNISETVM ALCP ECARgDES UTT;FD-NNY
LITTLE @JNNY FGI.NTAN GPA9S
1GAL
1B'OG
OILEMIIEIa
TA5011 TCL[kf
SOFT TOLrH HOLLY
I GAL
36' OL
�
23
ACANTHUSMOUIS
BEARS BREECH
5GAL.
36'O.0
0
47
MAHONI4 AOUFDATM
OREGON GAPE
5GAL
4E'OIC
13
CLSTUS SALvnLOULIS
SAGE-LEAFROp4;KZSE
sGAL
48'O.C.
Q52
CORNUS 5TOLONIFERA xFLSLr:
KELSE)I ECrTWG DOGWOOD
24'HT
3B'O.0
27
HOSTA'GUPGAMOLE'
GUACAWLE HCBTA
I GAL
30' QC
(�
rymPHORPOSALBLS
ICAE
COMMON SNONEERFY
5GAL
42'aC
2&
1
HYDRANGEA MACROPHYLLA ALL aL IWERSEAUTY
ALL SUMMER BEAUTY HtUIW SGFA
5CAL,
35'CL
26
ELPHORBLAPOLYCFF0A1
CLBHQI SPLRGE
7GAL
IB'OC
43
HELLEBDR.S ORENTALS
LENTEN ROSE
ICAL,
18'OC
PAL4CE'LRPLE
COMLBELLS
IGAL
18'O.0
:K£LCHERAM"ANTFTA
73
LAVANOULAANGLSPOUA
ENA"LAVENDER
1GPL
1B'OC
/6J1
AGAP ANT —E-.-I
BLAZE GANT AFPoCANLLY
2GAL
24'QC
HEMEROCALIS O-IrAGO HOYAL RODE
ROYAL ROBE OAYLLY
I GAL
24' O.C.
621
20
PtmNFTTYA MXRONATA
HEATH
5GAL
30'OC
GROUNDODMM
BGTANICAL NAME
CO.MION NAME
Siff
SPACING
®
PRAnA PED.ANCtLATA
BLUE STAR CREEPER
I
1210C
®
P—ACHLOENSIE
EEACHSTR.4VMFF1Y
IGAL
18'QC
AFICTOSTAP-- WA -US
KNMKINNIK
I GAL
18' QG
OOTONEASTERCAMMEFI
EEARBE9RYO1)TCNEAS7E
I GAL
18' O.G
NOTE LRRLC.4TIDN SYSTEM TO BE 8Lat IDEVSNSD,RILLYAUTOMAT%CANOPRCMM
RaLO3VERAQE_
REFERENCE :
APPLICANIT.CONNER 1.1014ES AT 9AROU MALL LLC
PROPOSED.- INSTALL COMIMIUNn DOCK
NEAR AT: RENTON
SHEET: 2 OF; 2
DATE-. 3-11-05 ❑WG -D5-3077-PLANTING-2
OF M5A Barbee Mill Community Dock Project • 20
Figure 10. Marbled murrelet summer aerial survey map
Maim
j�
ellingham
4
J
0
victoria
F Mt V.1111
-A
T
0
J
Port A
4-
Marbled Murrelet Observations
(On and Off Transect)
veret
Summer 92-99 Aerial Surveys
PSAMP, WDFW
0 5 10 15 20 25 30 35 40
r I I
KILOMETERS
J!,
7-1
Areas sampled
BremertonS,
0 1 - 2 birds a Project site QfF
E] 3 - 4 birds attle
5 - 6 birds
7-8 birds
( -rt�
9 - 11 birds qk,4
Shalton Tacoma
+Olympia
J J--
0 MSA Barbee Mill Community Dock Project - 21
•
•
Figure 11. Marbled murrelet winter aerial survey map
a
' r I Bl aura ,
I a.
L 1 ; 8eEiingharn
� f
t t
1 . •i�.o r
a 6,
A �1
Victoria 44=a
.
r4tZL
{
�i
,
Part Angalea
Marbled Murrelet Observations
(an Transect)
Winter 93-99 Aerial Surveys
PSAMP, WDFW
0 5 10 15 20 25 30 35 40
KILOMETERS
Areas Sampled
1 - 2 birds
❑ 3 - 4 birds
A 5 - B birds
7 - 8 birds
9 -10 birds
11 - 24 birds
Olympia +
site =E+
0 MSA Barbee Mill Community Dock Project • 22
Attachment 2. Species list for King County
LISTED AND PROPOSED ENDANGERED AND THREATENED SPECIES AND CRITICAL HABITAT;
CANDIDATE SPECIES; AND SPECIES OF CONCERN IN WESTERN WASHINGTON AS PREPARED
BY
THE U.S. FISH AND WILDLIFE SERVICE WESTERN WASHINGTON FISH AND WILDLIFE OFFICE
(Revised October 8, 2004) KING COUNTY
LISTED
Wintering bald eagles (Haliaeetus leucocephalus) occur in the county. Wintering activities occur from October 31
through March 31.
There are five bald eagle communal winter night roosts located in the county.
There are two bald eagle wintering concentrations located in the county along the Skykomish-Beckler-Tye Rivers
and Foss River.
There are 38 bald eagle nesting territories located in the county. Nesting activities occur from about January 1
through August 15.
Bull trout (Salvelinus confluentus) occur in the county.
Canada lynx (Lynx canadensis) may occur in the county.
Gray wolves (Canis lupus) may occur in the county.
Grizzly bears (Ursus arctos = U. a. horrihilis) may occur in the county.
Marbled murrelets (Brachyramphus marmoratus) occur in the county. Nesting murrelets occur from April 1 through
September 15.
Northern spotted owls (Strix occidentalis caurind) occur in the county throughout the year.
Major concerns that should be addressed in your Biological Assessment of project impacts to listed species include:
1. Level of use of the project area by listed species.
2. Effect of the project on listed species' primary food stocks, prey species and foraging areas in all
areas influenced by the project.
3. Impacts from project activities and implementation (e.g., increased noise levels, increased human
activity and/or access, loss or degradation of habitat) that may result in disturbance to listed species and/or their
avoidance of the project area.
Arenaria paludicola (marsh sandwort) may occur in the county.
Castilleja levisecta (golden paintbrush) may occur in the county. Major concerns that should be addressed in a
Biological Assessment of listed plant species include:
1 Distribution of taxon in project vicinity.
2 Disturbance (trampling, uprooting, collecting, etc.) of individual plants and loss of habitat.
3 Changes in hydrology where taxon is found.
41 MSA Barbee Mill Community Dock Project • 24
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DESIGNATED
Critical habitat for the northern spotted owl has been designated in King County. Critical habitat for the marbled
murrelet has been designated in King County.
PROPOSED
Critical habitat for the bull trout (Coastal -Puget Sound distinct population segment) has been proposed in King
County.
CANDIDATE
Fisher (Mantes pennanti) (West Coast distinct population segment) Yellow -billed cuckoo (Coccyzus americanus)
SPECIES OF CONCERN
Beller's ground beetle (Agonum belleri)
California wolverine (Gulo gulo luteus)
Cascades frog (Rana cascadae)
Hatch's click beetle (Eanus hatchi)
Larch Mountain salamander (Plethodon larselli)
Long-eared myotis (Myotis evotis)
Long-legged myotis (Myotis volans)
Northern goshawk (Accipiter gentilis)
Northern sea otter (Enhydra lutris kenyoni)
Northwestern pond turtle (Emys (== Clemmys) marmorata marmorata)
Olive -sided flycatcher (Contopus cooperi)
Pacific lamprey (Lampetra tridentate)
Pacific Townsend's big -eared bat (Corynorhinus townsendii townsendii)
Peregrine falcon (Faico peregrinus)
River lamprey (Lampetra ayresi)
Tailed frog (Ascaphus truei)
Valley silverspot (butterfly) (Speyeria zerene bremeri)
Western toad (Bufo boreal)
Aster curtus (white -top aster)
Botrychium pedunculosum (stalked moonwort)
Cimicifuga elata (tall bugbane)
MSA
Barbee Mill Community Dock Project • 25
Attachment 3. Essential Fish Habitat Assessment
A. Background
The Magnuson -Stevens Fishery Conservation and Management Act (MSA), as amended by the Sustainable
Fisheries Act of 1996 (Public law 104-267), requires Federal agencies to consult with NMFS on activities that may
adversely affect designated Essential Fish Habitat (EFH) for the relevant species. According to the MSA, EFH
means "those waters and substrate necessary to fish for spawning, breeding, feeding, or growth to maturity." For the
Pacific West Coast, the Pacific Fisheries Management Council (Council) has designated EFH for federally managed
groundfish (PFMC 1998a), coastal pelagic (PFMC 1998b) and Pacific salmon fisheries (PFMC 1999).
The purpose of the EFH Assessment is to determine the effects of the proposed project on the EFH for the relevant
species and to recommend conservation measures to avoid, minimize or otherwise offset adverse effects on EFH.
B. Identification of EFH
The designated EFH for groundfish and coastal pelagic species encompasses all waters from the mean high water
line, and upriver extent of saltwater intrusion in river mouths, along the coasts of Washington, Oregon and
California, seaward to the boundary of the U. S. exclusive economic zone (370.4 km) (PFMC 1994 1998b). The
designated EFH in estuarine and marine areas for Pacific salmon species extends from the nearshore and tidal
submerged environments within state territorial water out to the full extent of the exclusive economic zone (370 .4
km) offshore of Washington, Oregon and California north of Point Conception to the Canadian border PFMC,
1999).
Freshwater EFH for Pacific salmon includes all those streams, lakes, ponds, wetlands and other water bodies
currently, or historically accessible to salmon in Washington, Oregon, Idaho and California, except areas upstream
of certain impassable man-made barriers, and longstanding, naturally -impassable barriers.
Chinook salmon and coho salmon are the species with designated EFH that are found in Lake Washington
C. Proposed Action
The details of the proposed project are presented in Project Description section of the attached BE.
D. Effects of the Proposed Action
The effects of this project on designated EFH are likely to be similar to the effects described in detail in the Effects
Analysis section of the attached BE. The project is likely to have no permanent, long-term effects EFH designated
for chinook and coho salmon.
E. EFH Conservation Measures
The conservation measures and BMP's mentioned in the attached BE will be implemented to minimize possible
adverse effects to EFH.
MSA Barbee Mill Community Dock Project • 26
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F. Conclusion
The project may have temporary adverse effects on EFH the salmon species, but will not produce long-term adverse
effects on EFH for the above species. The conservation measures and BMP's mentioned in the attached BE will be
implemented to minimize any possible the temporary adverse effects on EFH.
G. Additional References
PFMC (Pacific Fishery Management Council). 1999, Amendment 14 to the Pacific Coast Salmon Plan. Appendix
A: Description and Identification of Essential Fish Habitat, Adverse Impacts and Recommended Conservation
Measures for Salmon (August 1999).
PFMC, 1998a. Final Environmental Assessment/Regulatory Review for Amendment 11 to the Pacific Coast
Groundfish Fishery Management Plan (October, 1998).
PFMC, 1998b. The Coastal Pelagic Species Fishery Management Plan: Amendment 8 (December, 1998).
MSA
Barbee Mill Community Dock Project • 27
Attachment 4. Assessment of Impacts to Critical Habitat for Puget Sound Chinook
Project description: Construction of a new community dock on Lake Washington in Renton, WA The site is
located in the Lake Washington watershed, 1711001203.
This assessment covers the primary constituent elements (50 CFR fart 226, page 74581-2) determined essential to
the conservation of Puget Sound Chinook salmon (Oncorhynchus tshawytscha):
(1) Freshwater spawning sites with water quantity and quality conditions and substrate supporting spawning,
incubation, and larval development.
Existing Conditions: There are no suitable freshwater spawning sites in the project vicinity
! (2) Freshwater rearing sites with water quantity and floodplain connectivity to form and maintain physical habitat
conditions and support juvenile growth and mobility; water quality and forage supporting juvenile development;
and natural cover such as shade, submerged and overhanging large wood, log jams and beaver dams, aquatic
vegetation, large rocks and boulders, side channels, and undercut banks.
Existing Conditions: Native vegetation has been planted along the shoreline in conjunction with the upland
development. No side channels or undercut banks were noted. There are two existing 18" diameter timber logs and
one 12" diameter coir log along the shoreline.
(3) Freshwater migration corridors free of obstruction with water quantity and quality conditions and natural cover
such as submerged and overhanging large wood, aquatic vegetation, large rocks and boulders, side channels, and
undercut banks supporting juvenile and adult mobility and survival.
Existing Conditions: See (2) above.
(4) Estuarine areas free of obstruction with water quality, water quantity and salinity conditions supporting juvenile
and adult physiological transitions between fresh -and saltwater; natural cover such as submerged and overhanging
large wood, aquatic vegetation, large rocks and boulders, and side channels, and juvenile and adult forage, including
aquatic invertebrates and fishes, supporting growth and maturation.
! Existing Conditions: See (2) above-
(5) Nearshore marine areas free of obstruction with water quality and quantity conditions and forage, including
aquatic invertebrates and fishes, supporting growth and maturation; and natural cover such as submerged and
overhanging large wood, aquatic vegetation, large rocks and boulder and side channels.
Existing Conditions: The site is in a freshwater area.
(6) Offshore marine areas with water quality conditions and forage, including aquatic invertebrates and fishes,
supporting growth and maturation.
Existing Conditions: The site is in a freshwater lake area.
0 MSA Barbee MM Community Dock Project • 28
Effects Analysis: A complete discussion of the effects of this project is seen in the BE. Construction will produce
brief and localized increased turbidity, which will be contained by a silt curtain.. The project will have no long-term
impacts on water quantity, salinity conditions or water temperature. Construction during work windows will prevent
impacts to the listed fish species.
Shading impacts on the benthic environment will be reduced by design components of the proposed project. The
entire dock will be fully grated
Determination of Effect: "May affect, not likely to adversely affect"
•
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0 MSA Barbee Mill Community Dock Project • 29
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Attachment 5.
Assessment of Impacts to Critical Habitat for Coastal - Puget Sound Bull Trout
COE reference: Unknown at this time
Applicant: Conner Homes at Barbee Mill LLC
The primary constituent elements determined essential to the conservation of bull trout (Salvelinus confluentus) are:
(1) Water temperatures that support bull trout use. Bull trout have been documented in streams with temperatures
from 32 to 72 V (0 to 22 °C) but are found more frequently in temperatures ranging from 36 to 59 °F (2 to 15 °C).
These temperature ranges may vary depending on bull trout life history stage and form, geography, elevation,
diurnal and seasonal variation, shade, such as that provided by riparian habitat, and local groundwater influence.
• Stream reaches that preclude bull trout use are specifically excluded from designation.
Existing Conditions: The project will take place in Lake Washington, a large body of fresh water.
Effects to PCE: The project is not expected to have any influence on the water temperature of Lake Washington.
(2) Complex stream channels with features such as woody debris, side channels, pools, and undercut banks to
provide a variety of depths, velocities, and in stream structures.
Existing Conditions: Project will take place in Lake Washington - not in a stream environment
Effects to PCE: No effect
(3) Substrates of sufficient amount, size and composition to ensure success of egg and embryo overwinter survival,
fry emergence, and young -of -the year and juvenile survival. This should include a minimal amount of fine substrate
less than 0.25 in (0.63 cm) in diameter.
Existing Conditions: No spawning activity at the site
Effects to PCE: No effect
(4) A natural hydrograph, including peak, high, low, and base flows within historic ranges or, if regulated, currently
operate under a biological opinion that addresses bull trout, or a hydrograph that demonstrates the ability to support
bull trout populations by minimizing daily and day-to-day fluctuations and minimizing departures from the natural
cycle of flow levels corresponding with seasonal variation: This rule finds that reservoirs currently operating under
a biological opinion that addresses bull trout provides management for PCEs as currently operated.
Existing Conditions: Project will take place in Lake Washington
Effects to PCE: The project does not involve any alteration in the lake level; therefore it will have no impact on
this PCE.
MSA
Barbee Mill Community Dock Project • 30
(5) Springs, seeps, groundwater sources, and subsurface water to contribute to water quality and quantity as a Cold-
water source.
Existing Conditions: See 4 above
Effects to PCE: This project will have no impact on springs, seeps, groundwater sources or subsurface water
(6) Migratory corridors with minimal physical, biological, or water quality impediments between spawning, rearing,
overwintering, and foraging habitats, including intermittent or seasonal barriers induced by high water temperatures
or low flows.
Existing Conditions: Native vegetation has been planted along the site shoreline.
Effects to PCE: The proposed dock will incorporate design components that will decrease negative impacts on
foraging habitat and migratory corridors. The proposed dock will be fully grated and supported by the smallest
number and diameter steel pilings, which will cause minimal physical, biological or water quality impediments.
1♦ (See the BE for details).
(7) An abundant food base including terrestrial organisms of riparian origin, aquatic macroinvertebrates, and forage
fish.
Existing Conditions: Native vegetation has been planted along the site shoreline.
Effects to PCE: See G above
(8) Permanent water of sufficient quantity and quality such that normal reproduction, growth and survival are not
inhibited.
Existing Conditions: See 4 above.
Effects to PCE: Pile driving may produce temporary turbidity impacts. These are expected to be short term and are
not expected to have a significant impact on critical habitat. Any debris associated with the project construction
phase will be contained by a silt containment curtain.
Determination of Effect: "No destruction or adverse modification"
Conservation Measures: Conservation measures for this project are seen in the Biological Evaluation.
E
a MSA Barbee Mill Community Dock Project • 31