HomeMy WebLinkAboutSWP272757(4) C DF
OPY
Abbreviated Surface Water
Technical Information ReDort
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95 Submittal
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fo r
oakesdale Avenue S. W. Extension - Ph
ase IA
S. W. 2 nth Street to S. W. 16th Street
_1
Presented to:
City of Renton
Planning/Building,/Public Works
Presented by:
Kato & Warren, Inc. September 1997
Oakesdale Avenue S.W. Extension
Phase IA
S.W. 27th Street to S.W. 16th Street
� o
95 /o SUBMITTAL
' ABBREVIATED SURFACE WATER
TECHNICAL INFORMATION REPORT
September, 1997
1
' Prepared by: Kato & Warren, Inc.
' Prepared for: City of Renton
Planning/Building/Public Works
' Contributing Kato & Warren Staff:
Richard E. Warren, P.E., Principal
' Shawn S. Summersett, P.E.,Civil Engineer
Kirk R. Smith, P.E., Civil Engineer
' Contributing City of Renton Staff:
S. Scott Woodbury, P.E., Civil Engineer
Ron Shaffer, Maintenance
' Address: City of Renton
Planning/Building/Public Works
200 Mill Avenue South
Renton, Washington 98055
425-235-2631
' Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.I.R.
City of Renton
TABLE OF CONTENTS
1
Page No.
' INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
' OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DESIGN REQUIREMENT SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
' Citv of Renton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Washington State Department of Fish and Wildlife 1
Washington State Department of Ecology . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
EXISTING DRAINAGE SYSTEM AND PROBLEMS . . . . . . . . . . . . . . . . . . . . . . . . 2
' PROPOSED DRAINAGE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
General Comments for All Site Drainage Basins . . . . . . . . . . . . . . . . . . . . . . . . 3
Basin 1 - Conveyance System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Basin 1 - Mitigation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Basin 2 - Southerly Conveyance System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Basin 2 - Northerly Conveyance System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Basin 2 - Mitigation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Basin 3 - Conveyance System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Basin 3 - Mitigation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : . . . . . . . . 8
APPENDICES
Appendix A - Mitigation Calculations
' Appendix B - Conveyance Calculations
Kato & Warren, Inc. i September, 1997
' Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.LR.
City of Renton
' INTRODUCTION
' The purpose of this Abbreviated Surface Water Technical Information Report is to document the
design requirements, exceptions, methodology and calculations for the surface water design
elements of the Oakesdale Avenue S.W. Extension project.
' OVERVIEW
The project is located primarily west of Springbrook Creek with a small portion located east of the
' Creek. Project runoff is tributary to Springbrook Creek via its adjoining wetlands, which flows to
the Duwamish River before entering Puget Sound at Elliott Bay. The Phase 1 project will increase
the impervious area from an essentially undeveloped site with no impervious area to 7.07 acres of
' impervious pavement and sidewalks. The proposed road travels through predominantly developing
commercial areas on level, grassland terrain.
' In addition to the Creek, other sensitive areas exist on site. Several wetlands are adjacent to, or
within, the project right-of-way. The project drains to these adjacent wetlands, of which Wetland
D is a closed depression. The project is also within, or adjacent to, FEMA floodplains. Slopes of
' greater than 30% exist adjacent to the creek.
' DESIGN REQUIREMENT SUMMARY
Surface water conveyance and mitigation facilities are designed to meet or exceed the
' requirements outlined by the following agencies:
City of Renton: The drainage system, including conveyance and surface water mitigation
' elements, is designed to meet or exceed requirements outlined in the 1990 King County Surface
Water Design Manual (1990 KCSWDM) adopted by the City of Renton Storm and Surface Water
Drainage Ordinance. Water-quality ponds have been enlarged to provide a minimum of 150%
of the dead storage volume and surface area required by the 1990 KCSWDM. Tailwater
elevations used for the conveyance system backwater analysis were established by the higher of
' the Springbrook Channel Widening Project's post-developed 100-yr storage event or theywater-
quality facility water-surface elevation.
Washington State Department of Fish and Wildlife: (drainage-related requirements/
recommendations were set forth in a letter to Gregg Zimmerman from Philip Schneider dated
May 6, 1997)
1. An HPA Permit will be obtained for outfalls and for discharge to S ring p brook Creek.
2. All discharge meets or exceeds requirements of the WSDOE Stormwater Management
' Manual for the Puget Sound Basin.
Kato & Warren, Inc. 1 September, 1997
t
Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.LR. '
City of Renton
3. Where land use will accommodate, wetponds are proposed rather than wet vaults for '
maintenance reliability reasons.
Washington State Department of Ecology: (drainage related requirements/recommendations '
were set forth in a letter to Robert Mahn from Rebecca Inman dated May 2, 1997)
1. Drainage design addresses both individual and cumulative impacts to existing flooding, '
infiltration and water-quality problems by coordinating mitigation efforts with other
development proposals in the area (e.g., the East Side Green River Watershed Study and
adjacent development proposals). ,
2. Springbrook Creek (WRIA #WA-09-1015, Class A Waters of the State) is on the current
303(d) list of water bodies exceeding state water-quality standards. The specific standards '
exceeded include fecal coliform, temperature, dissolved oxygen, sediment bioassay,
cadmium, copper, mercury and zinc. Mitigation facilities are designed beyond standard
requirements to ensure that state water-quality standards in Springbrook Creek are not ,
further degraded.
3. Stormwater discharges to wetlands are anticipated to either meet state water-quality
standards, or through mitigation sequencing, the impacts of such discharges are avoided, '
minimized, or mitigated by the proposed wetland mitigation plan.
4. Floodway and water-quality mitigation has been integrated as recommended.
EXISTING DRAINAGE SYSTEM AND PROBLEMS
The project site is relatively undeveloped and therefore existing man-made drainage features are '
primarily associated with off-site private development. Off-site runoff approaches the project
primarily from the west. Boeing's BCAG site has several existing drainage courses that convey ,
runoff in an easterly direction across the project corridor to the former practice-track area and on to
Springbrook Creek. These drainage features include: an existing 12" concrete outfall pipe near Sta.
26+30; an existing 12" concrete outfall pipe near Sta. 30+08; and an existing 36" CMP inlet pipe '
near Sta. 37+30 which is reported by a Sverdrup engineer(Kevin Bowen)to have been abandoned
and filled with controlled-density fill during recent Boeing construction activities. Boeings new
CSTC Building site has an existing 48" ductile iron culvert crossing the project in an easterly ,
direction near Sta. 43+00 to drain an open detention/treatment/wetland facility.
Runoff from the project site generally sheet flows easterly to wetlands and drainage courses tributary '
to Springbrook Creek. Besides flooding problems associated with the floodplain in the area,
exceedence of State Water-Quality Standards, erosion in Springbrook Creek, and proximity to the '
closed depression at Wetland D, no other existing flooding or drainage problems have been
unearthed during the resource review process.
Kato & Warren, Inc. 2 September, 1997
' Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.I.R.
City of Renton
' PROPOSED DRAINAGE SYSTEM
The proposed drainage system is substantially changed from the system proposed by HNTB in their
' April 1997 Design Report. Relatively little hydraulic head between the proposed roadway grade and
outfall elevations makes peak-rate runoff control ponds difficult to site efficiently. For less cost,
' constructed wetlands and dead storage in water-quality ponds will provide a superior level of
pollutant removal and peak-rate runoff control than provided by peak-rate runoff control ponds and
water-quality vaults proposed by HNTB. For these reasons, the proposed stormwater conveyance
' and mitigation systems have been altered and will be constructed as described below.
General Comments for All Site Drainage Basins: Conveyance and mitigation features are
' designed to safely pass the 100-yr storm event. Backwater analysis shows that catch basins will
not overtop for storm events less than, or equal to, the 100-yr storm event. In anticipation of tree
planting along the boulevard, open-curb-face inlets are being utilized on the project to facilitate
' runoff capture during autumn months. A minimum pipe cover of two feet has been maintained
between the conveyance system and the roadway finished grade except as noted below. As
requested by the City, catch basins are spaced at approximately 150 or 200 lineal feet depending
' on road grades.
The project has been broken into three basins to accommodate surface water mitigation facility
' siting. The following narrative describes the proposed drainage system in each basin.
BASIN I - Sta. 15+00 to Sta. 20+25
' After Phase 1 and Phase 2 construction, on-site surface water runoff will be conveyed
y in curb
and gutter systems to catch basins and a closed trunk conveyance system parallel to the road and
' outfalling to a newly-constructed water-quality pond and constructed wetland.
Conveyance System: The conveyance system is constrained on the west side of the alignment by
' an existing 12" diameter watermain. Proximity to the watermain requires that the trunk conveyance
main be placed on the east side of the road and concrete inlets are required near the watermain in
' places. The conveyance system is further constrained by the limited available fall to the 100-yr
downstream tailwater elevation of 13.91 feet set by the water-quality pond outfall culvert. Limited
available fall and pipe cover requirements forces conveyance system gradients below standard
' minimums. The conveyance system outfall pipe will be submerged during wet periods when the
water-quality pond dead storage is full, but the road system is set entirely above the water-quality
pond dead storage elevation of 13.60 feet. Submerged discharge was selected in accordance with
' the Draft 1996 King County Surface Water Design Manual (1996 KCSWDM) to enhance tranquil
discharge of runoff into the pond. Limited pipe cover requires the use of ductile iron pipe in low
areas of the basin. The conveyance system passes through a 72" diameter Type 2 Catch Basin with
' a baffle which provides oil spill containment and captures floatable material prior to discharge to
the water-quality pond.
Kato & Warren, Inc. 3 September, 1997
Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.I.R.
City of Renton
The conveyance and mitigation features have been over-sized to accommodate the future extension '
of Oakesdale south of S.W. 27th Street (Phase 2) and the completion of the 5 lane road section
between Sta. 15+00 and Sta. 20.25 (Phase 1 B). All catch basin frames will be installed to ultimate
finish grades. The ultimate proposed rim elevations of the three eastern Type 1 catch basins north ,
of Sta. 16+00 are within 8 inches of existing grades and can, therefore, be constructed to finished
grades during Phase IA construction. Where noted on the plans, standard frames will be ,
temporarily installed to be later replaced by open-curb-face frames during Phase 2 and Phase 1B
curb and gutter construction. The ultimate 2.1 acre impervious site yields a 100-yr rational method
flowrate of 4.60 cfs. Calculations can be found in the appendix. '
The existing inlets with small diameter outlet drains near S.W. 27th Street and Sta. 17+00 are to be
removed from the right-of-way as the road system will capture runoff in the area after construction. '
Mitigation System: The water-quality pond is designed to meet or exceed requirements outlined
in the 1990 KCSWDM as outlined in the narrative and table below. Calculations can be found ,
in the appendix.
VOLUME SURFACE AREA LENGTH TO WIDTH RATIO '
REQUIRED 8,725 c.f. 993 s.f. 3:1
AVAILABLE >32,000 c.f. >12,800 s.f. >6:1 '
EXCEDENT >350% >1,200% >200% '
It is not necessary to divide the pond into cells since the length-to-width ratio is >4:1 (1996
KCS)XDM). It is also not necessary to bypass storm events greater than the water-quality design ,
storm (1996 KCSWDM).* A sediment storage space is not provided at the conveyance system
outfall to the pond due to the close proximity of the pond access road and generous over-sizing
of the pond. A pond liner is not anticipated due to poor permeability of local soils. A gravity ,
drain for the pond is not required (1996 KCSWDM). The pond outfall culvert will pass storm
events up to and including the 100-yr storm event. Should the culvert become blocked, the pond
will overflow safely in the northerly and easterly directions into the wetland. Access to the pond '
is limited by the absence of a traditional curb cut. Maintenance crews will access the pond by
either driving over the curb directly or by a temporary ramp. The dispersal v-ditch has been
located further east than shown in previous submittals to avoid stands of existing trees. For Phase ,
IA construction, the entire mitigation system will be constructed in accordance with the ultimate
Phase 1/Phase 2 concept.
Cover requirements over the fuel/oil mains near Sta. 20+50 prevents the 'q p expansion of the
constructed wetland northward to Sta. 26+00 to form one contiguous constructed wetland with '
the basin to the north. A broad channel is to be graded over the fuel lines providing a hydraulic
link between the constructed wetlands located north and south of the fuel lines.
Kato & Warren, Inc. 4 September, 1997
' Oakesdale Avenue S.W. Ertension - Phase IA 95% Abbreviated S.W.T.I.R.
City, of Renton
' BASIN 2 - Sta. 20+25 to Sta. 48+40
The Phase 1 conveyance system in this basin is divided by the location of the water-quality pond
' into a northerly and southerly conveyance zone. The southerly conveyance zone is between Sta.
20+25 and Sta. 25+50 and the northerly conveyance zone is between Sta. 25+50 and Sta. 48+40.
For both conveyance zones, on-site surface water runoff will be conveyed in curb and gutter
' systems to catch basins and a closed trunk conveyance system parallel to the road and outfalling
to a newly-constructed water-quality pond and constructed wetland.
Southerly Conveyance System: Installation of the trunk conveyance main on the west side of the
alignment avoids construction above, and parallel to, the 108" and 72" diameter sanitary sewer
mains. It is anticipated that the watermain running parallel to the Oakesdale alignment between Sta.
20+90 and Sta. 28+35 is, or will be, abandoned and will not present separation conflicts. The
conveyance system outfall pipe will be submerged during wet periods when the water-quality pond
' dead storage is full,but the southerly conveyance system is set entirely above the water-quality pond
dead storage elevation of 11.50 feet. Submerged discharge was selected in accordance with the 1996
KCSWDM to enhance tranquil discharge of runoff into the pond. The conveyance system passes
' through a 72" diameter Type 2 Catch Basin with a baffle which provides oil spill containment and
captures floatable material prior to discharge to the water-quality pond.
' A shallow ditch is to be cut behind the proposed sidewalk from Sta. 23+50 to Sta. 25+80 Lt. to
drain an area which would otherwise pond against the road embankment at an elevation which
may compromise the pavement section. The 6" diameter PVC culvert under an existing dirt road
' just west of the right-of-way near Sta. 25+50 is to be removed as it is no longer needed.
' Northerly Conveyance System: Superelevation forces runoff to the east gutter between Sta.
48+40 and Sta. 43+60 requiring catch basins on the east side of the road only. The trunk
conveyance system gradient is below standard minimums between the sag vertical curve at Sta.
42+00 and the crossing of the Seattle Public Utilities 60" diameter Cedar River Pipeline No. 4.
To maximize the gradient, pipe cover has been reduced to 12" at the sag vertical curve and
ductile iron pipe materials are used in areas with less than 2 feet of pipe cover. The trunk
' conveyance main crosses to the west side of Oakesdale at S.W. 19th Street to avoid storm sewer
construction above, and parallel to, the 108" and 72" diameter sanitary sewer mains between this
intersection and the outfall. Where shown on the plans, it is proposed to use Type 1 Catch
Basins rather than Type 1L Catch Basins for 18" diameter ductile iron pipe (1996 KCSWDM).
The Boeing Company is currently constructing a number of utilities within the right-of-wav
between Sta. 36+50 and Sta. 45+00. Since Boeings utilities will be installed prior to Oakesdale
elements, Boeing's current proposed utility plan has been shown as part of the existing basemap
features in the drainage plan and profile sheets for the Oakesdale 95% Design Submittal. It has
' been noted that as designed, the proposed watermain parallel to Oakesdale between Sta. 37+00
and Sta. 40+25 does not provide the desired 10 foot horizontal separation between water and
Oakesdale storm sewer utilities. It has also been noted that as designed, the proposed fire hydrant
Kato & Warren, Inc. 5 September, 1997
Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.I.R. '
City of Renton
stub at Sta. 39+10 will conflict with the proposed trunk conveyance main. It was agreed in a '
T.A.C. meeting this month that the watermain could be relocated horizontallv and vertically to
avoid such conflicts. We will further coordinate with Sverdrup to determine if the watermain
vertical relocation would allow 2 foot minimum pipe cover over, and 18" clearance between, the '
watermain and storm laterals at Sta. 37+40 and Sta. 38+69 and thus avoid the use of ductile iron
pipe materials for these two pipe runs. (Kirk Smith looking into this on Monday 9/29/97)
Between Sta. 41+00 and Sta. 45+00 there are multiple existing inlets within the right-of-way that
drain into the created wetland on the west and east side of the Oakesdale alignment. The function
of these inlets is to drain Boeing's existing asphalt driveway which will be replaced by Oakesdale ,
or revised due to driveway regrading. Therefore, these inlets are to be removed and the associated
outfall pipes removed or abandoned as shown on the plans. A new catch basin will be installed to '
pick up gutter flow and direct it to an existing storm manhole in the area.
A 48" diameter ductile iron culvert crosses the right-of-way near Sta. 43+00 connecting the created '
wetland areas on each side of the roadway corridor. The proposed roadway trunk conveyance main
passes above this culvert and does not impact it.
A Type 2 Catch Basin with a flow-through pipe is to be constructed at Sta. 30+09.0, 34.6' Lt. '
to maintain the existing discharge route for off-site runoff and resolve the conflict between the
proposed 24" diameter Oakesdale trunk conveyance main and the 12" diameter off-site storm pipe ,
replacement. The existing storm sewers conveying off-site runoff in this area will be simplified
and replaced within the Oakesdale right-of-way as shown on the plans. Grade and alignment
information for the two existing 8" diameter drains in the area is unknown at this time. t
Proposed on-site and proposed off-site conveyance systems compete for nearly the same space
at Sta. 26+24, 31.6' Lt. Since Boeing anticipates the abandonment of this Oakesdale crossing '
in connection with future site development to the west, a zero clearance storm sewer crossing
encased in controlled-density fill was selected at this location to avoid the construction of another
flow-through manhole within City right-of-way.
The Oakesdale trunk conveyance main passes over the Seattle Public Utilities 60" diameter Cedar
River Pipeline No. 4 near Sta. 26+00. The proposed ductile iron storm drain with restrained '
joints constructed to watermain standards meets the requirements set forth by Seattle Public
Utilities, including a 12" vertical separation. Rather than constructing protection slabs over the
existing pipeline, the City of Renton and the Seattle Public Utility have agreed in concept to '
replaced the existing watermain within the proposed Oakesdale right-of-way. The replaced
pipeline would not require a protection slab.
The northern conveyance system joins the southern system at Sta. 25+50, 31.6' Lt. and outfalls
to the same newly-constructed water-quality pond and constructed wetland described for Basin
1 The conveyance system outfall pipe will be submerged during wet periods when the water- '
quality pond dead storage is full, but the lowest portion of the northerly conveyance system is set
Kato & Warren, Inc. 6 September, 1997
1
Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.I.R.
City of Renton
' just 0.2 feet below the water-quality pond dead storage elevation of 11.50 feet. Nearly all of the
road trunk conveyance system is above the water-quality pond dead storage elevation.
' The conveyance and mitigation features have been over-sized to accommodate the future completion
of the 5 lane road section between Sta. 20+25 and Sta. 37+00 (Phase 113). For Phase IA
' construction, the entire system described above will be constructed in accordance with the
ultimate Phase 1 concept, except that the cross pipes between Sta. 21+50 and Sta. 24+00 and
between Sta. 27+00 and Sta.'5+00 will be stubbed out and capped for future extension and catch
' basin installation under the bid package for Phase 1B. The 5.3 acre impervious site yields a 100-yr
rational method flowrate of 7.34 cfs. Calculations can be found in the appendix.
Mitigation System: The water-quality pond is designed to meet or exceed requirements outlined
in the 1990 KCSWDM as outlined in the narrative and table below. Calculations can be found
' in the appendix.
VOLUME SURFACE AREA LENGTH TO WIDTH RATIO
' REQUIRED 20.281 c.f. 2,309 s.f. 3:1
' AVAILABLE >31,400 c.f. >12,800 s.f. >5:1
EXCEDENT >150% >550% >150%
' This pond was designed to the same standards and has the same design exceptions as Pond 1.
The outfall culvert for this pond will also pass storm events up to and including the 100-yr storm
' event. Should the culvert become blocked, the pond will overflow safely in the southerly and
easterly directions into the wetland. Access to the pond will be limited by the absence of a
traditional curb cut when Phase 113 is completed, but until then bollards are provided. For Phase
IA construction, the entire mitigation system will be constructed in accordance with the ultimate
' Phase 1 concept.
' BASIN 3 - Sta. 48+40 to Sta. 52+56
After Phase 1 construction, on-site surface water runoff will be conveved in curb and gutter
' systems to catch basins and a closed trunk conveyance system parallel to the road and outfalling
to a newly-constructed water-quality vault before joining conveyance from S.W. 16th Street
where it eventually discharges to Springbrook Creek through an existing bridge abutment.
Conveyance System: Sup erelevation forces runoff to the west autter between Sta. 48+40 and the
intersection with S.W. 16th Street, requiring catch basins on the west side of the road only.
' Runoff will drop into catch basins and a closed conveyance system parallel to the road. The
conveyance system is constrained by the limited available fall to the water-quality vault dead storage
surface elevation of 15.50 feet. Limited fall and pipe cover forces one conveyance pipe gradient
Kato & Warren, Inc. 7 September, 1997
1
Oakesdale Avenue S.W. Extension - Phase IA 95% Abbreviated S.W.T.I.R. ,
City of Renton
below standard minimums and requires the use of ductile iron pipe materials. The conveyance '
system outfall pipe to the vault will be submerged during wet periods when the water-quality vault
dead storage is full, but the road system is set entirely above the water-quality vault dead storage
elevation. Submerged discharge was selected in accordance with the 1996 KCSWDM to enhance ,
tranquil discharge of runoff into the vault. The 0.77 acre impervious site yields a 100-yr rational
method flowrate of 2.08 cfs. Calculations can be found in the appendix.
Mitigation System: The water-quality vault is designed to meet or exceed requirements outlined
in the 1990 KCSWDM as outlined in the narrative and table below. Calculations can be found '
in the appendix.
VOLUME SURFACE AREA LENGTH TO WIDTH RATIO '
REQUIRED 2,985 c.f. 340 s.f. 3:1
AVAILABLE 4,480 c.f. 800 s.f. 8:1 '
FEXCEDENT_ 150% >200% >250%
It is not necessary to divide the vault into cells since the length-to-width ratio is >4:1 (1996
KCSWDM). It is also not necessary to bypass storm events greater than the water-quality design ,
storm (1996 KCSWDM). Access to the vault has been improved by the use of 36" diameter
access risers and frames. The vault will be sloped toward the outlet to facilitate maintenance
flushing. A down-turned 90 degree elbow at the outfall pipe will provide oil spill containment '
and capture floatable material prior to discharge to the downstream system.
Kato & Warren, Inc. 8 September, 1997
1
1 -
1
rr+
1 Abbreviated Surface Water
Technical In ormation Report
1
95 % Submittal
1
Appendix A
Mitigation Calculations
.�1
-1
fo r
Oakesdale Avenue S. W. Extension - Phase IA
1 S. W. 2 nth Street to S. W. 16th Street
-1
1 Presented to:
City of Renton
Planning/Building/Public Works
o-
Presented by:
Kato & Warren, Inc. September 1997
1
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2003-WESTERN AVENUE
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-_---OAKSDAKE_AVENUE-S .W. -EXTENSION
-------------------- ,
BASIN RESULT SUMMARY
BASIN --- -RATE- ----TIME----- Hydrograph Area
ID ---cf-- Ac-ft --cfs- -min- hours Methodology Acres
---------- ----------- ---------
(Mg
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0.47 1.14 480 8.00 SBUH Method 5.30 0.07 0.22 470 7.83 SBUH Method 0.78
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OAKSDAKE AVENUE S .W. EXTENSION
' BASIN SUMMARY
' BASIN ID: 1PWQ NAME: PROPOSED BASIN 1 - WQ STORM
SBUH METHODOLOGY
TOTAL AREA. . . . . . . : 2 . 28 Acres BASEFLOWS : 0 . 00 cfs
' RAINFALL TYPE. . . . : KC24HR PERV IMP
PRECIPITATION. . . . : 1 . 27 inches AREA. . : 0 . 00 Acres 2 . 28 Acres
TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 0 . 00 98 . 00
' ABSTRACTION COEFF: 0 . 20 TC. . . . . 0 . 00 min 6 . 30 min
PEAK RATE : 0 . 66 cfs VOL: 0 . 20 Ac-ft TIME: 470 min
BASIN ID: 2PWQ NAME: PROPOSED BASIN 2 - WQ STORM
SBUH METHODOLOGY
TOTAL AREA. . . . . . . : 5 . 30 Acres BASEFLOWS : 0 . 00 cfs
' RAINFALL TYPE. . . . : KC24HR PERV IMP
PRECIPITATION. . . . : 1 . 27 inches AREA. . : 0 . 00 Acres 5 . 30 Acres
TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 0 . 00 98 . 00
' ABSTRACTION COEFF: 0 . 20 TC. . . . . 0 . 00 min 25 . 20 min
PEAK RATE: 1 . 14 cfs VOL: 0 .47 Ac-ft TIME : 480 min
' BASIN ID: 3PWQ NAME: PROPOSED BASIN 3 - WQ STORM
SBUH METHODOLOGY
TOTAL AREA. . . . . . . : 0 . 78 Acres BASEFLOWS : 0 . 00 cfs
' RAINFALL TYPE. . . . : KC24HR PERV IMP
PRECIPITATION. . . . : 1 . 27 inches AREA. . : 0 . 00 Acres 0 . 78 Acres
TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 0 . 00 98 . 00
' ABSTRACTION COEFF: 0 . 20 TC. . . . . 0 . 00 min 6 .30 min
PEAK RATE : 0 . 22 cfs VOL: 0 . 07 Ac-ft TIME: 470 min
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FIGURE 4.3.1.D HEAD FOR CULVERTS(PIPE WI"n"=0.012)FLOWING FULL WITH OUTLET CONTROL '
2000
M
MM
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IOOO c __ SUBMERGED OUTLET CULVERT FLOWNG FULL S
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600 108 .6
500 96 Lo
400 84 /
300
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4
Surface Water Design Manual February 1996 Draft
4-41 '
1
1
1 Abbreviated Surface Water
1 Technical Information Report
95 % Submittal
1 - _
1 Appendix B
1 1
Conveyance Calculations
1
for-
Oakesdale Avenue S. W. Extension - Phase IA
S. W. 2 nth Street to S. W. 16th Street
Presented to:
1 City of Renton
Planning/Building/Public Works
-1
1 Presented by:
Kato & Warren, Inc. September 1997
1
' OAKESDALE AVENUE S.W. EXTENSION Surface Water Technical Information Report Prep'd By: SSS
Phase 1A-S.W.27th St.to S.W. 16th St. Conveyance System Analysis and Sizing Checked By:
' Run Date:9/24/97
Basin: 1 Trunk Main
Given: ! R= 100-year PR='3.92 ap='2.61 bR= 0.630 ! I 1
Sum
UPS trearn CB Info. Pie and U stream CB Info. Backwater Data
Pipe Location Sub Basin Number Area C C-A C-A T, iR IR QA Pipe Typ.n Slope Q. V. VR L T, CL Elev. Fall Rim Elev. U/S I.E. D/S I.E.I Max.Depth I CB Max.Diam. Th.Mat.1 Min.Cover delta Q trunk Q Ratio dQAQ
From To ac.) min. i(c.f.s.)lin. ftJft. c.f.s. f. .s. f. .s. ft. (min. ft. ft. ft. ft. ft. ft. in. in CB ft. c.f.s. c.f.s.
10+00.0 Rt 26.5' 111+50.0 Rt 26.5' 0.2410 0.900!0.22; 0.2169! 6.30! 0.81913.21; 0.6961 12' 0.014' 0.00506811 2.36! 3.01; 2.611 14810.945 i 18.900 -0.541 18.361 n/a 1 15.261 3.101 11 12! LCPE 2.00' 0.701 0.001 0.00
11+50.0 Rt 26.5' 113+00.0 Rt 26.5' 0.2410 0.900 0.22' 0.43391 7.25; 0.750i2.94 1.275; 12 0.014' 0.0050681 2.36; 3.01 3.061 14810.8061 18.150 -0.541 17.611 14.511 14.51 3.101 11 12! LCPE 2.00! 0.58 0.70! 0.83
�. 13+00.0 Rt 26.5' 14+50.0 Rt 38.5' 1 0.2410 0.900 0.22: 0.65081I 8.05: 0.701 i 2.75 1.789 12 0.014 0.000676 i 0.861 1.101 228 I 148 1.082! 17.4001 -0.54 16.861 13.761 13.76 3.10! 11 121 LCPE I Z.00 0.51' 1.2T 0.40
14+50.0 Rt 38.5' 15+50.8 Rt37.T 0.2824' 0.90010.25. 0.9050i 9.13 0.648 2.54 2.2981 12' 0.014I 0.000619 0.83: 1.051 2.931 9710.5521 16.712 -0.641, 16.071 13.66i 13.66; 2.411 1 I 12! DI i 1.31 0.511 1.791 0.28
I j I 1 1 1 I 1
Sum= 1.0055' 9.681
0. 0.2353 0.90010.21: 02118! 6.30 0.819:3.21 0.6801 12! 0.014 0.0033331 1.92i 2.44, 2.231 12310.9191 18.4001 -0.66 I 17.741 n/a i 14.43 _3.311 i 1 121 LCPE 2.21 i 0.68 0.00 0.00
' 19+0 0 Rt 32.5 17+75.0 Rt 32.5
17+75.0 Rt 32.5' '16+50.0 Rt 32.5' 0.2353 0.900 0.21 0.4236 7.22' 0.751 2.94' 1.2471 12 0.014 0.001951 1.47; 1.87' 2.09' 12310.981 17.7751 -0.661 17.121 14.021 14.02 i 3.10 1 121 LCPE 2.00 0.57; 0.68' 0.84
16+50.0 Rt 32.5' 15+50.8 Rt 37.7' 02353 0.900 0.21 i 0.6353I 8.20; 0.6931 2.72' 1.727; 121 0.014 0.001895 1.44. 1.84 2.201 9510.7201 17.1501 -0.661 16.491 13.7811 13.781 2.711-1! 121 DI I 1.66', 0.48i 1.25' 0.38
' Sum 0.7059' 8.92' '
15+50.8 Rt 37.7' 1 WO Pond 1 0.3765 0.900 0.341 1.8791 9.68: 0.624 2.45 .4.5991 12 0.0141 0.0454551 7.07" 9.001 9.571 44 0.077 16.712 i 15.90 j 13.60i 13.60 2.301 2.72! 121 DI 1.25; 0.57; 4.02' 0.14
1 i ( 1 1 I 1 i i
Sum= 2.08791, 9.76 ! ! 1 I
Kato&Warren, Inc. RM1T1002.XLS Pace 1 of 1
' BASIN I EAST TRUNK TWO PQN12 TO STA 15+:0.8. 37.7' RTl
KING COUNTY DEPARTMENT OF PUBLIC WORKS
' Surface Water Management Division
BACKWATER ANALYSIS PROGRAM
' Version 4.22
1 -INFO ON THIS PROGRAM
' 2-BWCHAN
3-BWPIPE
4-BWCULV
5-BWBOX
' 6-DATA-FILE ROUTINES
7-RETURN TO DOS
' ENTER OPTION
3
BACKWATER COMPUTER PROGRAM FOR PIPES
' SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD
F-FILE
k
ENTER:NUMBER OF PIPES
1
-------------------------------------------------------------------------------
OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA:
' 1)SPECIFY TYPE OF TAILWATER DATA INPUT: S-SINGLE TW-ELEV.
F-TW/HW DATA FILE
s
2)ENTER: TW-ELEV
13l91
ROUND/ARCH PIPE INPUT CODING INFORMATION:
' PIPE TYPE CODING:
1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY)
2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD)
' 3 -HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW)
4-CMP ARCH(OLD GEOMETRY) 8-ROUND(user sets n-fac)
ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING ,
TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH
15" 18"X I I" 17X 13" * 42" 50"X 3 1" 49"X 33" '
18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" '
30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52"
36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57"
INLET TYPE CODING: '
1 - CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10- OTHER(SEE
2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT
3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) '
ENTER PIPE# 1: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE
44.00 12.00 1 11.60 13.60 6
-------------------------------------------------------------------------------
INFLOW CONDITIONS PIPE NO. 1 -OVERFLOW DATA AND UPSTREAM VELOCITY DATA: ,
1)ENTER: OVERFLOW-ELEV,OVERFLOW-TYPE(NONE=O, BROAD-WEIR=1, SHARP-WEIR=2)
15.90 0 '
2)SPECIFY TYPE OF VELOCITY DATA INPUT: S -SINGLE VELOCITY UPSTREAM
V VARY VELOCITY ACCORDING TO V=Q/A
s
3)ENTER:VELOCITY(fps)UPSTREAM '
.00
-------------------------------------------------------------------------------
ENTER: QMIN, QMAX, QINCRE,PRINT-OPTION(STANDARD=1, CONDENSED=2,
EXPANDED=3)
4.50 4.70 .10 1 '
PIPE NO. 1: 44 LF- 12"CP @ 4.55% OUTLET: 11.60 INLET: 13.60 INTYP: 6 '
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
4.50 1.68 15.28 * .012 .89 .53 2.31 2.31 .89 ***** 1.68 ,
46 1.72 1S•32 * .012 .90 .54 2.31 2.31 .90 ***** 1.72 RIM EL..= 15.90. OK
4.70 1.76 15.36 * .012 .90 .55 2.31 2.31 .90 ***** 1.76
SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S -STOP '
f
SPECIFY[d:][path]filename[.ext]FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 1: '
bwlet2.hw
SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S - STOP '
s
7
Stop- Program terminated. '
BASIN 1 Sn 'TH THUNK (SIA 15±50 e 31 2' RI TO STA 10+00 0 216 ,' RTl
KING COUNTY DEPARTMENT OF PUBLIC WORKS
Surface Water Management Division
BACKWATER ANALYSIS PROGRAM
' Version 4.22
1 -INFO ON THIS PROGRAM
' 2-BWCHAN
3-BWPIPE
4-BWCULV
5-BWBOX
' 6-DATA-FILE ROUTINES
7-RETURN TO DOS
' ENTER OPTION
3
' BACKWATER COMPUTER PROGRAM FOR PIPES
SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD
F-FILE
k
' ENTER: NUMBER OF PIPES
4
-------------------------------------------------------------------------------
' OUTFLOW CONDITIONS PIPE NO. I -TAILWATER DATA:
' 1)SPECIFY TYPE OF TAILWATER DATA INPUT: S-SINGLE TW-ELEV.
F-TW/HW DATA FILE
s
2)ENTER:TW-ELEV
UZ
-------------------------------------------------------------------------------
' "INPUT PIPE DATA BEGINNING WITH DOWNSTREAM PIPE AND WORK BACK"
ROUND/ARCH PIPE INPUT CODING INFORMATION:
PIPE TYPE CODING:
1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY)
2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD)
3 -HELICAL. CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) '
4-CMP ARCH(OLD GEOMETRY) 8 - ROUND(user sets n-fac)
ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING ,
TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH
15" 18"X 11" 17"X 13" * 42" 50"X 3 1" 49"X 33"
18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47"
30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" '
36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57"
INLET TYPE CODING: '
I -CMP/PROJ. 4-CP SOCKET/PROJ. 7 -CMAP/PROJ. 10-OTHER(SEE
2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT
3 - CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5)
ENTER PIPE# 1: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE '
97.00 12.00 1 13.60 13.66 6
ENTER JUNC NO. 1:OVERFLOW-ELEV,BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft), Q-RATIO ,
16.07 .00 2.00 .28
ENTER PIPE#2:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE ,
148.00 12.00 1 13.66 13.76 6
ENTER JUNC NO.2: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft), Q-RATIO '
16.86 .00 2.00 .40
ENTER PIPE#3: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE '
148.00 12.00 1 13.76 14.51 6
ENTER JUNC NO.3: OVERFLOW-ELEV,BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft),Q-RATIO
17.61 .00 2.00 .83 '
ENTER PIPE#4: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE
148.00 12.00 1 14.51 15.26 6
-------------------------------------------------------------------------------
INFLOW CONDITIONS PIPE NO.4-OVERFLOW DATA AND UPSTREAM VELOCITY DATA: '
1)ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE(NONE=O,BROAD-WEIR=1, SHARP-WEIR=2)
18.36 0 '
2)SPECIFY TYPE OF VELOCITY DATA INPUT: S- SINGLE VELOCITY UPSTREAM
V-VARY VELOCITY ACCORDING TO V=Q/A
s
3)ENTER: VELOCITY(fps)UPSTREAM ,
.00
--------------------------------------------------------------- - -------------
ENTER: QMIN, QMAX, QINCRE,PRINT-OPTION(STANDARD=1, CONDENSED=2,
EXPANDED=3) '
' 2.20 2.40 .10 1
' PIPE NO. 1: 97 LF- 12"CP @ .06% OUTLET: 13.60 INLET: 13.66 INTYP: 6
JUNC NO. 1: OVERFLOW-EL: 16.07 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .28
' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
2.20 2.06 15.72 * .012 .64 1.00 1.72 1.72 1.98 2.06 .91
"1 2.10 15.76 * .012 .65 1.00 1.72 1.72 2.00 2.10 .94 �
2.40 2.14 15.80 * .012 .67 1.00 1.72 1.72 2.04 2.14 .96
2.50 2.18 15.84 * .012 .68 1.00 1.72 1.72 2.07 2.18 .98
' PIPE NO.2: 148 LF- 12"CP @ .07% OUTLET: 13.66 INLET: 13.76 INTYP: 6
JUNC NO.2: OVERFLOW-EL: 16.86 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .40
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
1.72 2.32 16.08 * .012 .56 1.00 2.06 2.06 2.26 2.32 .79
' IM 2.39 16.15 * .012 .58 1.00 2.10 2.10 2.32 2.39 .82
1.87 2.46 16.22 * .012 .59 1.00 2.14 2.14 2.39 2.46 .84
1.95 2.54 16.30 * .012 .60 1.00 2.18 2.18 2.46 2.54 .86
' PIPE NO.3: 148 LF- 12"CP @ .51% OUTLET: 13.7 4 6 INLET. 1 .51 INTYP: 6
JUNC NO. 3: OVERFLOW-EL: 17.61 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .83
Q(CFS) HW(F ) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
' 1.23 1.76 16.27 * .012 .47 .47 2.32 2.32 1.72 1.76 .66
IM 1.85 16.36 * .012 .48 .49 2.39 2.39 1.80 1.85 .68 UK
1.34 1.94 16.45 * .012 .49 .50 2.46 2.46 1.89 1.94 .69
1.40 2.04 16.55 * .012 .50 .51 2.54 2.54 1.99 2.04 .71
PIPE NO.4: 148 LF- 12"CP @ .51% OUTLET: 14.51 INLET: 15.26 INTYP: 6
' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
&Z 1.07 16.33 * .012 .35 .34 1.76 1.76 1.06 1.07 .47 hvi ., = 18.36_nK
.70 1.16 16.42 * .012 .35 .35 1.85 1.85 1.15 1.16 .48
.73 1.26 16.52 * .012 .36 .36 1.94 1.94 1.24 1.26 .49
.76 1.36 16.62 * .012 .37 .37 2.04 2.04 1.34 1.36 .50
' SPECIFY: R-REVISE,N-NEWJOB,F-FILE. S - STOP
f
' SPECIFY[d:][path]filename[.ext] FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 4:
bw 1 st4.hw
' SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S -STOP
s
7
Stop-Program terminated.
BASIN 1 NOR H TR ?NK (STA U+50 8 37 7' RI TO STA 19+Q0 0 31 5' RTl ,
KING COUNTY DEPARTMENT OF PUBLIC WORKS
Surface Water Management Division I
BACKWATER ANALYSIS PROGRAM
Version 4.22
1 -INFO ON THIS PROGRAM
2-BWCHAN
3-BWPIPE
4-BWCULV
5- BWBOX
6-DATA-FILE ROUTINES '
7-RETURN TO DOS
ENTER OPTION '
3
BACKWATER COMPUTER PROGRAM FOR PIPES '
SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD '
F-FILE
k
ENTER: NUMBER OF PIPES
3
-------------------------------------------------------------------------------
OUTFLOW CONDITIONS PIPE NO. I -TAILWATER DATA: ,
1)SPECIFY TYPE OF TAILWATER DATA INPUT: S - SINGLE TW-ELEV.
F-TW/HW DATA FILE
s
2)ENTER: TW-ELEV
1�.2 1
-------------------------------------------------------------------------------
**INPUT PIPE DATA BEGINNING WITH DOWNSTREAM PIPE AND WORK BACK** 1
ROUND/ARCH PIPE INPUT CODING INFORMATION:
PIPE TYPE CODING: 1
1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY)
2 - CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD) '
1
' 3 -HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW)
4-CMP ARCH(OLD GEOMETRY) 8-ROUND(user sets n-fac)
ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING
TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH
15" 18"X 11" 17"X 13" * 42" 50"X 3 1" 49"X 33"
18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47"
' 30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52"
36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57"
' INLET TYPE CODING:
1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE
2-CMP/HDWALL 5 -CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT
3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5)
ENTER PIPE# 1:LENGTH(ft),DIA(in),PIPE-TYPE, OUTLET-IE,INLET-IE,INLET-TYPE
95.00 12.00 1 13.60 13.78 6
' ENTER JUNC NO. 1:OVERFLOW-ELEV,BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft),Q-RATIO
16.49 .00 2.00 .38
' ENTER PIPE#2: LENGTH(ft),DIA(in), PIPE-TYPE,OUTLET-IE, INLET-IE, INLET-TYPE
123.00 12.00 1 13.78 14.02 6
' ENTER JUNC NO. 2:OVERFLOW-ELEV, BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft),Q-RATIO
17.12 .00 2.00 .84
ENTER PIPE#3: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE, INLET-IE, INLET-TYPE
123.00 12.00 1 14.02 14.43 6
-------------------------------------------------------------------------------
' INFLOW CONDITIONS PIPE NO.3-OVERFLOW DATA AND UPSTREAM VELOCITY DATA:
1)ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE(NONE=0,BROAD-WEIR=1,SHARP-WEIR=2)
' 17.74 0
2)SPECIFY TYPE OF VELOCITY DATA INPUT: S -SINGLE VELOCITY UPSTREAM
V-VARY VELOCITY ACCORDING TO V=Q/A
' 3)ENTER: VELOCITY(fps)UPSTREAM
.00
-------------------------------------------------------------------------------
ENTER: QMIN, QMAX, QINCRE,PRINT-OPTION(STANDARD=1, CONDENSED=2,
EXPANDED=3)
1.60 1.90 .10 1
' PIPE NO. 1: 95 LF- 12"CP @ .19% OUTLET: 13.60 INLET: 13.78 INTYP: 6
JUNC NO. 1: OVERFLOW-EL: lfi& BEND: 0 DEG DIA/WIDTH: 2.0 Q-RATIO: .38
1
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI '
*******************************************************************************
1.60 1.76 15.54 * .012 .54 .78 1.72 1.72 1.71 1.76 .76
LM 1.78 15.56 * .012 .56 .84 1.72 1.72 1.72 1.78 .79 Q '
1.80 1.81 15.59 * .012 .58 .92 1.72 1.72 1.75 1.81 .82
1.90 1.85 15.63 * .012 .59 1.00 1.72 1.72 1.77 1.85 .84
PIPE NO. 2: 123 LF- 12"CP @ .20% OUTLET: 13.78 INLET: 14.02 INTYP: 6 ,
JUNC NO. 2: OVERFLOW-EL: 17.12 BEND: 0 DEG DIA/WIDTH: 2.0 Q-RATIO: .84
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
1.16 1.68 15.70 * .012 .46 .61 1.76 1.76 1.64 1.68 .64
1,2.1 1.71 ILU * .012 .47 .63 1.78 1.78 1.67 1.71 .66 Q�
1.30 1.76 15.78 * .012 .49 .66 1.81 1.81 1.71 1.76 .68
1.38 1.81 15.83 * .012 .50 .69 1.85 1.85 1.76 1.81 .71 ,
PIPE NO. 3: 123 LF- 12"CP @ .33% OUTLET: 14.02 INLET: 14.43 INTYP: 6
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI '
*******************************************************************************
.63 1.31 15.74 * .012 .34 .37 1.68 1.68 1.30 1.31 .45 '
, Z 1.35 15.78 * .012 .35 .38 1.71 1.71 1.34 1.35 .47 RIM EL..- 17.74.OK
.71 1.41 15.84 * .012 .36 .39 1.76 1.76 1.39 1.41 .49
.75 1.47 15.90 * .012 .37 .40 1.81 1.81 1.45 1.47 .50
SPECIFY: R-REVISE,N-NEWJOB,F-FILE,S -STOP '
f
SPECIFY [d:][path]filename[.ext] FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 3:
bwlnt4.hw
SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S -STOP '
s
7
Stop-Program terminated.
' OAKESDALE AVENUE S.W.EXTENSION Surface Water Technical Information Report Prep'd By: SSS
Phase 1 A-S.W.27th St.to S.W.16th St. Conveyance System Analysis and Sizing Checked By:
Run Date:9/24/97
Basin: 2-Trunk Main
Given: R= 100-year Pq 3.92 ap='2.61 bR=:0.630 ! '
1 Sum Upstream CB Info. Pipe and Upstream CB Info. Backwater Data
Pipe Location Sub Basin Number Area C C'A C'A T, ip Ip Q,, Pipe Typ.n Slope Q. V. Va L T, CL Elev. Fall Rim Elev. U/S I.E. D/S I.E. Max.Depth C13 Max.Diam. Th.Mat. Min.Cover delta Q trunk Q Ratio dQ/tQ
From To (ac.) min. c.f.s. (in.) Rift. c.f.s. f. .s. f. .s.) ft. min. ft. ft. ft. ft. (ft. ft. in.) in CB (ft. c.f.s. (c.f.s.
' 21+50.0 Lt 32.5' 22+60.0 Lt 32.5' 0.2353: 0.900 0.21 0.2118' 6.30 0.819;3.21 0.680! 12 i 0.014 0.005093' 2.37 3.01 2.60' 108;0.692! 18.400! -0.66' 17.74! n/a 14.32! 3.42! 1; 121 LCPE 2.32 0.68; 0.00! 0.00
22+60.0 Lt 32.5' 24+00.0 Lt 32.5' 02071! 0.900' 0.191 0.3981 6.991 0.767 3.00, 1.196: 121 0.014 0.005072' 2.36! 3.01' 3.01 138 0.764! 17.850! -0.66 17.19! 13.77' 13.77' 3.42` 176
12 LCPE 2.32' 0.521 0.68 0.
24+00.0 Lt 32.5' 25+50.0 Lt 31.6' 0.2635 0.900 0.24 0.6353' 7.76 0.718!2.81: 1.788 12! 0.014 0.005170' 2.391 3.04 3.33 14710.736' 17.1501 -0.66 16.49! 13.07! 13.07' 3.42! 1! 121 LCPE 2.32 0.59! 1.20 0.49
Sum= 0.7059! '; 8.49'
47+00.0 Rt 32.5' 45+00.0 Rt 32.5' 0.2635' 0.900 0.24 0.2372 6.30' 0.819i 3.21 0.761 12 0.014' 0.0226291. 4.99 6.35 4.58' i94':0.706: 23.904! -0.991 22.91 n/a' 19.81 3.10! i t 12! LCPE 2.001 0.76! 0.00 0.00
' 45+00.0 Rt 32.5' 43+77.0 Rt 32.5' 0.3765 0.900, 0.34' 0.5760; 7.01 0.766!3.00 1.7291 12' 0.014' 0.013917' 3.91;� 4.98' 4.82' 120 0.415i 19.462! -0.94 j 18.52! 15.42 15.42! 3.101 1 121 LCPE ! 2.00 0.97'! 0.76 1.27
43+77.0 Rt 32.5' 42+00.0 Rt 32.5' 02315 0.900: 0.21' 0.7844 7.42, 0.738!2.89 2.270 121. 0.014: 0.002571 1.681 2.14' 2.89 175 1.009: 17.539 -0.69! 16.85� 13.751 13.75; 3.10i 1 i 121 LCPE 2.00 0.54' 1.73 0.31
42+00.0 Rt 32.5' 40+21.0 Rt 32.5' 0.6767' 0.900 0.61 1.3935 8.43 0.681.12.67 3.722' 18 0.014 0.001186 3.V 1.91 2.11 177'1.3981 16.517! -0.66 j 15.861 13.30 13.30 2.56 i 1 I 181 DI 1.00! 1.45 2.27: 0.64
' 40+21.0 Rt 32.5' 40+14.0 Lt 32.5' 0.1431! 0.900 0.131 1.5223: 9.83 0.619 2.42' 3.691 18' 0.014 0.001270! 3.491 1.97' 2.22 63',0.473! 16.990 j -0.66 i 16.331 13.091 13.09 3.24j 1 i 181 DI ! 1.68' -0.03! 3.72! -0.01
40+14.0 Lt 32.5' 38+62.0 Lt 32.5' ! 0.1431 0.900 0.13 1.6510 10.30! 0.601112.35 3.886i 18 0.014; 0.001200 3.39i 1.92' Z20 150!1.136; 17.010: -0.66 i 16.35; 13.011 13.01 3.341 1 I 181 DI ; 1.78 j 0.201 3.691 0.05
38+62.0 Lt 32.5' 1 37+35.0 Lt 32.5' 0.2410 0.900 0.22: 1.8679 11.441 0.56212.20; 4.1161 18; 0.014 0.001190 3.37' 1.91! 2.33 126 0.901 17.460 -0.66 16.80i 12.83i 12.83 3.97! 1; 18i LCPE ! 2.32 I 0.23 3.89! 0.06
37+35.0 Lt 32.5' 36+,?0.0 Lt 31.6' 0.2024' 0.900: 0.18! 2.0500' 12.341 0.5361 2.10 4.307; 18 0.014 0.001165: 3.34`. 1.89' 2.44 103;0.704I 17.8401 -0.66'! 17.18! 12.681 12.68 4.501 1 181 LCPE 2.851 0.19i 4.12 0.05
36+30.0 Lt 31.6' 35+00.0 Lt 31.6' 0.2447' 0.900 0.221 2.2702' 13.04' 0.518'2.03' 4.606I 24': 0.014 0.001181'' 7.24' 2.30' 2.44 127'0.867` 18.160' -0.66' 17.50i 12.56 12.561 4.941 2-48 i 241 LCPE ! 2.76! 0.301 4.31! 0.07
35+00.0 Lt 31.6' 1 32+92.0 Lt 31.6' 0.2824 0.900: 0.25' 2.5244 13.91 0.497'1.95 4.918' 24' 0.014' 0.001171 7.21, 2.29 2.46 205 1.389! 18.550 -0.66' 17.89! 12.41 i 12.41 5.48 i 1-48 I 24 LCPE j 3.30! 0.31 i 4.61 0.07
32+92.0 Lt 31.6' 131+30.0 Lt 31.6' 0.0979, 0.900' 0.09 2.6125, 15.301 0.468;1.831 4.793: 24' 0.014' 0.001203 7.30' 2.32' Z48! 158;1.062' 18.800' -0.66' 18.14! 12.17; i2.17 5.971 2-48 i 241 LCPE I 3.79! -0.12i 4.92`. -0.03
*� 31+30.0 Lt 31.6' 30+09.0 Lt 34.6' 0.3163 0.900 0.28, 2.897f' 16.36! 0.449i 1.76: 5.096'. 24 0.014 0.001197 7.291 2.32' 2.50' 117'0.7801 18.340 -0.66' 17.68! 11.981; 11.98 5.701 2-48 241 LCPE 3.52' 0.301 4.791; 0.06
30+09.0 Lt 34.6' 29+85.0 Lt 31.6' 0.1139! 0.900' 0.10 2.9996 17.141 0.4361 1.71 5.123, 24' 0.014 0.001500 8.16 2.60 Z74 20�0.122. 17.977 -0.66 17.32! 11.84' 11.84 5.481 2-72! 24! LCPE 3.30' 0.03: 5.10' 0.01
29+85.0 Lt 31.6' 28+40.0 Lt 31.6' 0.1591 0.900 0.14' 3.1428: 17.26' 0.434 1.70 5.344' 24 0.014 0.001135: 7.10 2.26' 2.48 141 0.948: 17.905 -0.66 17.251 11.81 11.81; 5.44! 2-48 24 LCPE 3.26 0.22' S.12 0.04
28+40.0 Lt 31.6' 26+95.0 Lt 31.6' 0.2730 0.900 0.25 3.3884 18.21! 0.419 1.64� 5.571! 241 0.014 0.001206 7.31 2.33': 2.56 141 0.918 17.470 -0.66! 16.81! 11.65 11.65 5.16i 2-48 24ij LCPE 2.98' 0.23' 5.34; 0.04
26+95.0 Lt 31.6' 25+50.0 Lt 31.6' 0.2730! 0.900 0.25 3.6341; 19.13' 0.407'1.59 5.793 24 0.014 0.001206 7.31 2.33 2.58 141 0.911' 17.035 -0.66 16.38i 11.48i 11.48 4.90; 2-48 241 LCPE 2.72': 0.22 5.57'. 0.04
' Sum 4.0379. 20.04
I I I
25+50.0 Lt 31.6' 25+50.0 Rt 50.0' 0.2777' 0.900 0.251 4.5193 20.04 0.395!1.55 6.996 24 0.014: 0.017500 27.861 8.87 7.37 76 0.172: 16.712 -0.66! 16.05 11.31 11.31' 4.74 2-48 i 241 LCPE 2.56', -2.70 9.70' -0.28
' j 1 ,
25+550 Rt 32.5' 25+50.0 Rt 50.0' 0.27771 0.9001 0.25 0.24991 20.04' 0.395'1.55'' 0.387' 121 0.014' 0.131333: 12.02; 15.31 6.99: 15 0.036i 16.713 -0.66 16.05 n/a 12.95' 3.10i 1 121 LCPE 2.00 0.39: 0.00 0.00
1
' 0.017778 28.08 8.94' 7.51 27'0.060!
25+50.0 Rt 50.0' WO Pond 0.0000 0.900' 0.00 4.7692 20.21 0.393 1.54 7.343' 24 0.014 15.381. 9.981 9.98' 5.40: 2-72 24': LCPE I 3.22' -0.04' 7.38, 0.01
! 1
Sum 5.2991 20.27'
Kato&Warren, Inc. RM2T1005.XLS Page 1 of 1
BASIN 2 EAST TRUNK (WO POND TO STa 15+50 n ;n Q' RTl
KING COUNTY DEPARTMENT OF PUBLIC WORKS
Surface Water Management Division
BACKWATER ANALYSIS PROGRAM
Version 4.22
1 -INFO ON THIS PROGRAM
2-BWCHAN
3-BWPIPE
4-BWCULV
5-BWBOX
' 6-DATA-FILE ROUTINES
7-RETURN TO DOS
' ENTER OPTION
3
' BACKWATER COMPUTER PROGRAM FOR PIPES
SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD
F-FILE
k
ENTER: NUMBER OF PIPES
' 1
-------------------------------------------------------------------------------
' OUTFLOW CONDITIONS PIPE NO. I -TAILWATER DATA:
1)SPECIFY TYPE OF TAU-WATER DATA INPUT:S-SINGLE TW-ELEV.
' F-TW/HW DATA FILE
s
2)ENTER:TW-ELEV
' 13•_fl
ROUND/ARCH PIPE INPUT CODING INFORMATION:
PIPE TYPE CODING:
1 -CONC/SMOOTH BORE(n=0.012) 5-CMP ARCH(NEW GEOMETRY)
2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD)
' 3 -HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW)
4-CMP ARCH(OLD GEOMETRY) 8-ROUND(user sets n-fac)
ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING '
TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH '
15" 18"X I V 17"X 13" * 42" 50"X 31" 49"X 33"
18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" ,
30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52"
36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57"
INLET TYPE CODING: '
1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE
2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT
3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5)
ENTER PIPE# 1:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE
27.00 24.00 1 9.50 9.98 6
------------------------------------------------------------------------------
INFLOW CONDITIONS PIPE NO. I -OVERFLOW DATA AND UPSTREAM VELOCITY DATA: '
1)ENTER:OVERFLOW-ELEV, OVERFLOW-TYPE(NONE=O,BROAD-WEIR=1,SHARP-WEIR=2)
15.38 0 '
2)SPECIFY TYPE OF VELOCITY DATA INPUT: S-SINGLE VELOCITY UPSTREAM
V-VARY VELOCITY ACCORDING TO V=Q/A
s
3)ENTER: VELOCITY(fps)UPSTREAM '
.00
-------------------------------------------------------------------------------
ENTER: QMIN,QMAX,QINCRE,PRINT-OPTION(STANDARD=1,CONDENSED=2,
EXPANDED=3) ,
7.20 7.40 .10 1
PIPE NO. 1: 27 LF-24"CP @ 1.78% OUTLET: 9.50 INLET: 9.98 INTYP:6 '
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
7.20 3.45 13.43 * .012 .96 .64 3.80 3.80 3.35 3.45 1.35
7.30 3.44 13.42 * .012 .96 .65 3.80 3.80 3.34 3.44 1.36
7.40 3.45 13.43 * .012 .97 .65 3.80 3.80 3.34 3.45 1.37
7.50 3.45 12,4,1 * .012 .98 .66 3.80 3.80 3.35 3.45 1.38 RTM EL.=t 5,38, OK '
SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S - STOP
f
SPECIFY [d:][path]filename[.ext]FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 1:
bw2et4.hw
SPECIFY: R-REVISE,:l- - NEWJOB,F-FILE. S - STOP
s
7 '
BASIN 2 WEST TRIiNK (STA ";±:0(1 31 6' Ll- STA 25.-50 0 50 0' RT)
KING COUNTY DEPARTMENT OF PUBLIC WORKS
Surface Water Management Division
BACKWATER ANALYSIS PROGRAM
Version 4.22
1 -INFO ON THIS PROGRAM
' 2-BWCHAN
3- BWPIPE
4-BWCULV
5 -BWBOX
6-DATA-FILE ROUTINES
7-RETURN TO DOS
1
ENTER OPTION
3
BACKWATER COMPUTER PROGRAM FOR PIPES
SPECIFY TYPE OF PIPE-DATA INPUT: K- KEYBOARD
F- FILE
k
' ENTER: NUMBER OF PIPES
I
-------------------------------------------------------------------------------
tOUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA:
' 1)SPECIFY TYPE OF TAILWATER DATA INPUT: S- SINGLE TW-ELEV.
F-TW/HW DATA FILE
s
2)ENTER:TW-ELEV
13.43
ROUND/ARCH PIPE INPUT CODING INFORMATION:
' PIPE TYPE CODING:
I -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY)
2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD)
3-HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW)
4-CMP ARCH(OLD GEOMETRY) 8 -ROUND(user sets n-fac)
ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING '
TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH ,
15" 18"X I I" 17"X 13" * 42" 50"X 3 1" 49"X 33"
18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47"
30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52"
36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57"
INLET TYPE CODING:
1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10- OTHER(SEE
2-CMP/HDWALL 5 -CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT
3 -CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) ,
ENTER PIPE# 1: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE
76.00 24.00 1 9.98 11.31 6 ,
-------------------------------------------------------------------------------
INFLOW CONDITIONS PIPE NO. 1 -OVERFLOW DATA AND UPSTREAM VELOCITY DATA:
1)ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE(NON"E=0, BROAD-WEIR=1, SHARP-WEIR=2)
16.05 0 ,
2) SPECIFY TYPE OF VELOCITY DATA INPUT: S -SINGLE VELOCITY UPSTREAM
V-VARY VELOCITY ACCORDING TO V=Q/A
s
3)ENTER: VELOCITY(fps)UPSTREAM
2.58
-------------------------------------------------------------------------------
ENTER: QMIN, QMAX,QINCRE,PRINT-OPTION (STANDARD=1,CONDENSED=2,
EXPANDED=3) ,
6.90 7.10 .10 1
PIPE NO. 1: 76 LF-24"CP @ 1.75% OUTLET: 9.98 INLET: 11.31 INTYP: 6
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
6.90 2.19 13.50 * .012 .94 .63 3.45 3.45 2.19 2.18 1.21
7ZQ 2.18 LL-42 * .012 .94 .64 3.45 3.45 2.18 2.17 1.22 IM = 16.05,OK
7.10 2.18 13.49 * .012 .95 .64 3.45 3.45 2.18 2.18 1.23
SPECIFY: R-REVISE,N-NEWJOB,F-FILE,S - STOP '
f
SPECIFY [d:][path]filename[.ext] FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 1: '
bw2wt4.hw
SPECIFY: R- REVISE,N-NEWJOB,F-FILE,S - STOP '
s
7
Stop-Program terminated. '
' BASIN 2 NORTH TRUNK.SOUTH HALE( TA '1s+50 0 31,6LLT Tn STD
KING COUNTY DEPARTMENT OF PUBLIC WORKS
Surface Water Manacement Division
BACKWATER ANALYSIS PROGRAM
Version 4.22
1 -INFO ON THIS PROGRAM
2-BWCHAN
3-BWPIPE
4-BWCULV
5-BWBOX
' 6-DATA-FILE ROUTINES
7-RETURN TO DOS
ENTER OPTION
- 3
BACKWATER COMPUTER PROGRAM FOR PIPES
SPECIFY TYPE OF PIPE-DATA INPUT: K- KEYBOARD
F-FILE
k
ENTER: NUMBER OF PIPES
' 4 .
-------------------------------------------------------------------------------
IOUTFLOW CONDITIONS PIPE NO. I -TAILWATER DATA:
' 1)SPECIFY TYPE OF TAILWATER DATA INPUT:S -SINGLE TW-ELEV.
F-TW/HW DATA FILE
s
2)ENTER:TW-ELEV
13.49
-------------------------------------------------------------------------------
' **INPUT PIPE DATA BEGINNING WITH DOWNSTREAM PIPE AND WORK BACK**
ROUND/ARCH PIPE INPUT CODING INFORMATION:
PIPE TYPE CODING:
1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY)
' 2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD)
3 -HELICAL CMP(n-fac varies) 7- CONC/SMOOTH ARCH(NEW)
4 -CMP ARCH(OLD GEOMETRY) 8 - ROUND (user sets n-fac)
ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING '
TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH
15" 18"X 11" 17"X 13" * 42" 50"X 3 1" 49"X 33"
18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47"
30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" '
36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57"
INLET TYPE CODING: ,
1 - CMP/PROJ. 4-CP SOCKET/PROJ. 7 -CMAP/PROJ. 10- OTHER(SEE
2- CMP/HDWALL 5 -CP SQ.EDGE/HDWALL 8 -CMAP/HDWALL FHWA REPORT
3- CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) '
ENTER PIPE# 1: LENGTH(ft),DIA(in),PIPE-TYPE, OUTLET-IE,INLET-IE,INLET-TYPE
141.00 24.00 1 11.31 11.48 6
ENTER JUNC NO. 1: OVERFLOW-ELEV, BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft), Q-RATIO ,
16.38 .00 2.00 .04
ENTER PIPE#2: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE
141.00 24.00 1 11.48 11.65 6
ENTER JUNC NO.2: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO ,
16.81 .00 2.00 .04
ENTER PIPE#3: LENGTH(ft),DIA(in),PIPE-TYPE, OUTLET-IE,INLET-IE,INLET-TYPE ,
141.00 24.00 1 11.65 11.81 6
ENTER JUNC NO. 3: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft), Q-RATIO
17.25 .00 2.00 .04 '
ENTER PIPE#4:LENGTH(ft),DIA(in),PIPE-TYPE, OUTLET-IE,INLET-IE,INLET-TYPE
20.00 24.00 1 11.81 11.84 6 ,
-------------------------------------------------------------------------------
INFLOW CONDITIONS PIPE NO.4-OVERFLOW DATA AND UPSTREAM VELOCITY DATA: ,
1)ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE(NONE=O, BROAD-WEIR=1, SHARP-WEIR=2)
17.32 0 ,
2) SPECIFY TYPE OF VELOCITY DATA INPUT: S -SINGLE VELOCITY UPSTREAM
V-VARY VELOCITY ACCORDING TO V=Q/A
s
3)ENTER: VELOCITY(fps)UPSTREAM -
.00
-------------------------------------------------------------------------------
ENTER: QMIN, QMAX, QINCRE,PRINT-OPTION(STANDARD=1, CONDENSED=2,
EXPANDED=3) '
' 5.80 5.70 .10 1
PIPE NO. 1: 141 LF-24"CP @ .12% OUTLET: 11.31 INLET: 11.48 INTYP: 6
JUNC NO. 1: OVERFLOW-EL: J!LM BEND: 0 DEG DIA/WIDTH: 2.0 Q-RATIO: .04
' Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
2.11 * .012 .86 1.22 2.18 2.18 2.09 2.11 1.15 QK
PIPE NO. 2: 141 LF-24"CP @ .12% OUTLET: 11.48 INLET: 11.65 INTYP: 6
JUNC NO.2: OVERFLOW-EL: 16.81 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .04
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
t $ 2.04 13.69 * .012 .84 1.19 2.11 2.11 2.02 2.04 1.13 UK
' PIPE NO. 3: 141 LF-24"CP @ .11% OUTLET: 11.65 INLET: 11.81 INTYP: 6
JUNC NO.3: OVERFLOW-EL: 17.25 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .04
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
S 1.96 13.77 * .012 .82 1.18 2.04 2.04 1.94 1.96 1.11 UK
PIPE NO.4: 20 LF-24"CP @ .15% OUTLET: 11.81 INLET: 11.84 INTYP: 6
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
5 1.99 13.83 * .012 .81 1.06 1.96 1.96 1.94 1.99 1.12 RIM .= 17.32. O
' SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S -STOP
f
SPECIFY [d:)[path]filename[.ext]FOR STORAGE OF H`V-DATA AT INLET OF PIPE NO.*4:
' bw2nst4.hw
SPECIFY: R-REVISE,N-NEWJOB, F-FILE. S - STOP
' s
7
Stop-Program terminated.
BASIN 2 NORTH TRUNK,NORTH HALF(STA 30+09.0.34.6' LT TO STA 47-Q0,0.32.;' RT
KING COUNTY DEPARTMENT OF PUBLIC WORKS
Surface Water Management Division '
BACKWATER ANALYSIS PROGRAM
Version 4.22 '
1 -INFO ON THIS PROGRAM
2-BWCHAN '
3-BWPIPE
4-BWCULV
5-BWBOX
6-DATA-FILE ROUTINES ,
7-RETURN TO DOS
ENTER OPTION
3 ,BACKWATER COMPUTER PROGRAM FOR PIPES
SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD ,
F-FILE
k
ENTER: NUMBER OF PIPES '
12
-------------------------------------------------------------------------------
OUTFLOW CONDITIONS PIPE NO. I -TAILWATER DATA: ,
1)SPECIFY TYPE OF TAILWATER DATA INPUT: S- SINGLE TW-ELEV. ,
F-TW/HW DATA FILE
s
2)ENTER:TW-ELEV
flu ,
-------------------------------------------------------------------------------
**INPUT PIPE DATA BEGINNING WITH 15OWNSTREAM PIPE AND WORK BACK** '
ROUND/ARCH PIPE INPUT CODING INFORMATION:
PIPE TYPE CODING: '
I -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY)
2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD) ,
3- HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW)
4-CMP ARCH(OLD GEOMETRY) 8-ROUND(user sets n-fac)
' ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING
TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH
15" 18"X I I" 17"X 13" * 42" 50"X 3 1" 49"X 33"
18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
' 24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47"
30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52"
36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57"
' INLET TYPE CODING:
1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE
2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT
' 3- CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5)
ENTER PIPE# 1:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE
' 117.00 24.00 1 11.84 11.98 6
ENTER JUNC NO. 1: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO
17.68 .00 4.00 .06
' ENTER PIPE#2:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE, INLET-TYPE
158.00 24.00 1 11.98 12.17 6
ENTER JUNC NO.2: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft), Q-RATIO
18.14 .00 4.00 .00
' ENTER PIPE#3:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE, INLET-IE, INLET-TYPE
205.00 24.00 1 12.17 12.41 6
ENTER JUNC NO.3:OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft), Q-RATIO
17.89 .00 4.00 .07
ENTER PIPE#4:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE, INLET-IE. INLET-TYPE
' 127.00 24.00 1 12.41 12.56 6
ENTER JUNC NO.4: OVERFLOW-ELEV,BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft), Q-RATIO
' 17.50 .00 4.00 .07
ENTER PIPE#5: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE, INLET-TYPE
103.00 18.00 1 12.56 12.68 6
' ENTER JUNC NO.5: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO
17.18 .00 2.00 .05
ENTER PIPE#6: LENGTH(ft),DIA(in),PIPE-TYPE, OUTLET-IE, INLET-IE,INLET-TYPE
126.00 18.00 1 12.68 12.83 6
' ENTER JUNC NO.6: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft), Q-RATIO
16.80 .00 2.00 .06
ENTER PIPE#7:LENGTH(ft),DIA(in), PIPE-TYPE, OUTLET-IE. INLET-IE,INLET-TYPE
150.00 18.00 1 12.83 13.01 6
ENTER JUNC NO.7: OVERFLOW-ELEV,BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft), Q-RATIO
16.35 90.00 2.00 .05 '
ENTER PIPE#8: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE
63.00 18.00 1 13.01 13.09 6 '
ENTER JUNC NO. 8: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft), Q-RATIO
16.33 90.00 2.00 .00
ENTER PIPE#9: LENGTH(ft),DIA(in), PIPE-TYPE, OUTLET-IE,INLET-IE,INLET-TYPE ,
177.00 18.00 1 13.09 13.30 6
ENTER JUNC NO. 9: OVERFLOW-ELEV,BEND-ANGLE(deo), STRUC.DIA/WIDTH(ft),Q-RATIO ,
15.86 .00 2.00 .64
ENTER PIPE#10:LENGTH(ft),DIA(in),PIPE-TYPE, OUTLET-IE,INLET-IE,INLET-TYPE '
175.00 12.00 1 13.30 13.75 6
ENTER JUNC NO.10: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft),Q-RATIO
16.85 .00 2.00 .31
ENTER PIPE#11: LENGTH(ft), DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE '
120.00 12.00 1 13.75 15.42 6
ENTER JUNC NO.11: OVERFLOW-ELEV, BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft), Q-RATIO
18.52 .00 2.00 1.27 '
ENTER PIPE#12:LENGTH(ft), DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE
194.00 12.00 1 15.42 19.81 6
-------------------------------------------------------------------------------
INFLOW CONDITIONS PIPE NO.12- OVERFLOW DATA AND UPSTREAM VELOCITY DATA: '
1)ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE(NONE=O,BROAD-WEIR=1,SHAU-WEIR=2)
22.91 0 '
2)SPECIFY TYPE OF VELOCITY DATA INPUT: S - SINGLE VELOCITY UPSTREAM
V-VARY VELOCITY ACCORDING TO V=Q/A
s
3)ENTER:VELOCITY(fps)UPSTREAM '
.00
-------------------------------------------------------------------------------
ENTER: QMIN, QMAX, QINCRE,PRINT-OPTION(STANDARD=1,CONDENSED=2,
EXPANDED=3) '
5.10 4.90 .10 1
PIPE NO. 1: 117 LF-24"CP @ .12% OUTLET: 11.84 INLET: 11.98 INTYP: 6 '
JUNC NO. 1: OVERFLOW-EL: 17�G BEND: 0 DEG DI VWIDTH:4.0 Q-RATIO: .06
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI '
j.,lfl 1.92 13.90 * .012 .80 1.12 1.99 1.99 1.90 1.92 1.08 UK
' PIPE NO.2: 158 LF-24"CP @ .12% OUTLET: 11.98 INLET: 12.17 INTYP:6
JUNC NO. 2: OVERFLOW-EL: 18.14 BEND: 0 DEG DIA/WIDTH:4.0 Q-RATIO: .00
' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
41 1.79 lL.9.fi * .012 .78 1.08 1.92 1.92 1.78 1.79 1.04
PIPE NO. 3: 205 LF-24"CP @ .12% OUTLET: 12.17 INLET: 12.41 INTYP: 6
' JUNC NO.3: OVERFLOW-EL: 17.89 BEND: 0 DEG DIA/WIDTH:4.0 Q-RATIO: .07
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
4l 1.66 14.07 * .012 .78 1.09 1.79 1.79 1.63 1.66 1.05
' PIPE NO.4: 127 LF-24"CP @ .121% OUTLET: 12.41 INLET: 12.56 INTYP: 6
JUNC NO.4: OVERFLOW-EL: 17.50 BEND: 0 DEG DIA/WIDTH:4.0 Q-RATIO: .07
' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
g, Q 1.55 14.11 * .012 .75 1.04 1.66 1.66 1.55 1.52 .96
' PIPE NO.5: 103 LF- 18"CP @ .12% OUTLET: 12.56 INLET:
E 12.68 INTYP:6
JUNC NO.5: OVERFLOW-EL: lZa BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .05
' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
' 1.60 14.2g * .012 .79 1.50 1.55 1.55 1.57 1.60 1.07
PIPE NO. 6: 126 LF- 18"CP @ .12% OUTLET: 12.68 INLET: 12.83 INTYP:6
' JUNC NO. 6: OVERFLOW-EL: jj6M BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .06
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
4M 1.64 14 Z * .012 .77 1.26 1.60 1.60 1.61 1.64 1.04
' PIPE NO.7: 150 LF- 18"CP @ .12% OUTLET: 12.83 INLET: 13.01 INTYP:6
JUNC NO.7: OVERFLOW-EL: 16.35 BEND: 90 DEG DIA/WIDTH: 2.0 Q-RATIO: .05
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
1.74 14.75 * .012 .75 1.18 1.64 1.64 1.63 1.74 1.09 Q
' PIPE NO. 8: 63 LF- 18"CP @ .13% OUTLET: 13.01 INLET: 13.09 INTYP:6
JUNC NO. 8: OVERFLOW-EL: 1h.33 BEND: 90 DEG DIA/WIDTH: 2.0 Q-RATIO: .00
t
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI '
3M 1.83 14,92 * .012 .73 1.10 1.74 1.74 1.73 1.83 1.06 '
PIPE NO. 9: 177 LF- 18"CP @ .12% OUTLET: 13.09 INLET: 13.30 INTYP: 6 '
JUNC NO.9: OVERFLOW-EL: JZM BEND: 0 DEG DIA/WIDTH: 2.0 Q-RATIO: .64
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
.2 24( 1.81 15.11 * .012 .73 1.14 1.83 1.83 1.80 1.81 .97
PIPE NO.10: 175 LF- 12"CP @ .26% OUTLET: 13.30 INLET: 13.75 INTYP: 6 '
JUNC NO.10: OVERFLOW-EL: 16.85 BEND: 0 DEG DIAIWIDTH: 2.0 Q-RATIO: .31
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI '
*******************************************************************************
2.01 15.76 * .012 .64 1.00 1.81 1.81 1.92 2.01 .91 QK
PIPE NO.11: 120 LF- 12"CP @ 1.39% OUTLET: 13.75 INLET: 15.42 INTYP: 6
JUNC NO.11: OVERFLOW-EL: BEND: 0 DEG DIA/WIDTH: 2.0 Q-RATIO: 1.27 ,
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
l&Z .81 16.23 * .012 .55 .42 2.01 2.01 .60 .81 .80 '
PIPE NO.12: 194 LF- 12"CP @ 2.26% OUTLET: 15.42 INLET: 19.81 INTYP: 6 '
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
74 .49 * .012 .36 .25 .81 .81 .36 ***** .49 RiM EL.=22.91.OK '
SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S -STOP
f ,
SPECIFY [d:][path]filename[.ext]FOR STORAGE OF HW-DATA AT INLET OF PIPE NO.12:
bw2nnt4.hw
SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S -STOP '
s
7 'Stop-Program terminated.
' BASIN 2 SOUTH MINK (ST4 25+:n.0.31.6' T T TQ STa R , r L
KING COUNTY DEPARTMENT OF PUBLIC WORKS
Surface Water Manaeement Division
BACKWATER ANALYSIS PROGRAM
Version 4.22
1 -INFO ON THIS PROGRAM
2-BWCHAN
3 -BWPIPE
4-BWCULV
5 -BWBOX
' 6- DATA-FILE ROUTINES
7-RETURN TO DOS
' ENTER OPTION
3
' BACKWATER COMPUTER PROGRAM FOR PIPES
' SPECIFY TYPE OF PIPE-DATA INPUT: K-KEYBOARD
F-FILE
k
ENTER: NUMBER OF PIPES
-------------------------------------------------------------------------------
OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA:
' 1) SPECIFY TYPE OF TAILWATER DATA INPUT: S- SINGLE TW-ELEV.
F-TW/HW DATA FILE
s
2)ENTER: TW-ELEV
13 2
-------------------------------------------------------------------------------
**INPUT PIPE DATA BEGINNING WITH DOWNSTREAM PIPE AND WORK BACK**
ROUND/ARCH PIPE INPUT CODING INFORMATION:
' PIPE TYPE CODING:
1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY)
' 2- CORRUGATED METAL(n=0.024) 6- CONC/SMOOTH ARCH (OLD)
3 -HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW) ,
4-CMP ARCH (OLD GEOMETRY) 8 -ROUND(user sets n-fac)
ARCH PIPE CODING- EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING '
TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH
15" 18"X I I" 17"X 13" * 42" 50"X 3 1" 49"X 33" '
18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" '
30" 36"X 22" 35"X 24" * 669' 79"X 49" 77"X 52"
369' 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57"
INLET TYPE CODING: '
1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE
2- CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT
3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) '
ENTER PIPE# 1: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE, INLET-TYPE
147.00 12.00 1 12.31 13.07 6
ENTER JUNC NO. 1: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIAIWIDTH(ft),Q-RATIO '
16.49 .00 2.00 .49
ENTER PIPE#2: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE
138.00 12.00 1 13.07 13.77 6
ENTER JUNC NO. 2: OVERFLOW-ELEV,BEND-ANGLE(deg),STRUC.DIA/WIDTH(ft), Q-RATIO '
17.19 .00 2.00 .76
ENTER PIPE#3: LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE ,
108.00 12.00 1 13.77 14.32 6
---------------------------------------------------------------------------
INFLOW CONDITIONS PIPE NO.3-OVERFLOW DATA AND UPSTREAM VELOCITY DATA:
1)ENTER: OVERFLOW-ELEV,OVERFLOW-TYPE(NONE=O, BROAD-WEIR=1, SHARP-WEIR=2)
17.74 0
2)SPECIFY TYPE OF VELOCITY DATA INPUT: S -SINGLE VELOCITY UPSTREAM
V-VARY VELOCITY ACCORDING TO V=Q/A ,
3)ENTER: VELOCITY(fps)UPSTREAM
.00
-------------------------------------------------------------------------------
ENTER: QMIN, QMAX, QINCRE,PRINT-OPTION(STANDARD=1, CONDENSED=2, ,
EXPANDED=3)
1.60 1.80 .10 1
PIPE NO. 1: 147 LF- 12"CP @ .52% OUTLET: 12.31 INNLET: 13.07 INTYP: 6 '
JUNC NO. 1: OVERFLOW-EL: 49 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .49
' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
1.60 .81 13.88 * .012 .54 .55 1.18 1.18 .69 .81 .76
1.70 .84 13.91 * .012 .56 .57 1.18 1.18 .71 .84 .79
JaQ .87 13.94 * .012 .58 .59 1.18 1.18 .74 .87 .82
PIPE NO. 2: 138 LF- 12"CP @ .51% OUTLET: 13.07 INLET: 13.77 INTYP: 6
JUNC NO.2: OVERFLOW-EL: 17.19 BEND: 0 DEG DIA/WIDTH:2.0 Q-RATIO: .76
' Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
1.07 .63 14.40 * .012 .44 .44 .81 .81 .44 .63 .61
1.14 .65 14.42 * .012 .45 .45 .84 .84 .45 .65 .63
L.)j .67 14.44 * .012 .47 .47 .87 .87 .47 .67 .65
' PIPE NO. 3: 108 LF- 12"CP @ .51% OUTLET: 13.77 INLET: 14.32 INTYP: 6
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
.61 .45 14.77 * .012 .33 .32 .63 .63 .33 ***** .45
.65 .48 14.80 * .012 .34 .34 .65 .65 .34 .48 .46
' -42 .50 1= * .012 .35 .35 .67 .67 .35 .50 .48 RIM I.= 17.74. QK
SPECIFY:R-REVISE,N-NEWJOB,F FILE,S STOP
f
' SPECIFY[d:][path]filename[.ext] FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 3:
bw2st4.hw
' SPECIFY: R-REVISE,N-NEWJOB,F-FILE,S-STOP
s
7
' Stop-Program terminated.
OAKESDALE AVENUE S.W. EXTENSION Surface Water Technical Information Report Prep'd By: KRS
Phase 1 A-S.W.27th St.to S.W. 16th St. Conveyance System Analysis and Sizing Checked By: SSS
Run Date:9/24/97
Basin: 3-Trunk Main
I � i
Given: R= 100-year Pp 3.92 I aR=12.61 ' be!A630
I j
Sum
Rim Info. Pipe and CB Info. Backwater Data
Pipe Location Sub Basin Number Area C C'A C`A T� iR IR Qq Pipe Typ.n Slope Q. V,� VR L T, CL Elev. Fall Rim Elev. D/S I.E. U/S I.E. Max.Depth CB Max.Diam. Min.Cover delta Q trunk Q Ratio dQ/tQ
From To ac.) min. (c.f.s. in.) ft./ft. c.f.s. f. .s. (f. .s.) ft. (min. (ft. (ft. ft.) ft. ft.) ft in. ft. (c.f.s. c.f.s.
50+30.0 Lt 32.5' 50+90.0 Lt 32.5' j 0.3577 0.900!0.32' 0.32i9' 6.30 0.819'3.21 1.033; 12 0.014 0.022545 4.98: 6.34 4.99 55 0.1841 22.960 -1.32 21.64 18.54; Na` 3.10! 1 12' 2.00
Sum= 0.3577I j 6.48 j
51+95.0 Lt 32.5' 50+90.0 Lt 32.5' 0.3012' 0.900'0.27 0.2711 6.30' 0.819'3.21 0.870 i 12' 0.014 0.003061 1.84 2.34 2.30` 9810.710 i 18.39 15.80 Na' 2.591 1 12; 1.49
i j I
Sum= 0.3012' i i 7.01 i
50+90.0 Lt 32.5' Wet Vault i 0.1129 0.900!0.10 0.6946; 7.03 j 0.764 2.99, 2.O80 12 0.014 0.142857 12.54 15.96 11.80 14 0.020! 21.460 -1.06 20.40 15.50 15.50 4.90 1 12 3.80'.
I
Sum= 0.7718 7.05
Wet Vault Ex. CB 0.6946; 7.05'. 0.763I2.99' 2.0761 12 0.014! 0.020755 - 4.781 6.08 5.87' 53 0.150' 15.50' 15.50
Kato&Warren,Inc. RM3T 002.XLS Page 1 of 1
ASIN 3 WET VAULT OIITFAI.I. (STA 51+10.8. �4' 1 T TOW T VAULT1
KING COUNTY DEPARTMENT OF PUBLIC WORKS
' Surface Water Management Division
BACKWATER ANALYSIS PROGRAM
Version 4.22
t1 -INFO ON THIS PROGRAM
2-BWCHAN
' 3-BWPIPE
4-BWCULV
5 -BWBOX
' 6-DATA-FILE ROUTINES
7-RETURN TO DOS
ENTER OPTION
3
' BACKWATER COMPUTER PROGRAM FOR PIPES
SPECIFY TYPE OF PIPE-DATA INPUT: K- KEYBOARD
F-FILE
k
ENTER: NUMBER OF PIPES
I
-------------------------------------------------------------------------------
' OUTFLOW CONDITIONS PIPE NO. I -TAILWATER DATA:
1)SPECIFY TYPE OF TAILWATER DATA INPUT:S- SINGLE TW-ELEV.
' F-TW/HW DATA FILE
s
2)ENTER: TW-ELEV
' 14.40. CONS .RVATTVF, ASSITNTPTrnN
ROUND/ARCH PIPE INPUT CODING INFORMATION:
' PIPE TYPE CODING:
1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY)
2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD)
' 3 -HELICAL CMP(n-fac varies) 7-CONC/SMOOTH ARCH(NEW)
4-CMP ARCH(OLD GEOMETRY) 8-ROUND(user sets n-fac)
ARCH PIPE CODING -EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING '
TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH
15" 18"X 11" 17"X 13" * 42" 50"X 3 1" 49"X 33" ,
18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47" '
30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52"
36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57"
INLET TYPE CODING: '
1 -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10-OTHER(SEE
2- CMP/HDWALL 5 -CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT
3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) '
ENTER PIPE# 1: LENGTH(ft),DIA(in),PIPE-TYPE, OUTLET-IE,INLET-IE, INLET-TYPE
53.00 12.00 1 14.40 15.50 6 '
-------------------------------------------------------------------------------
INFLOW CONDITIONS PIPE NO. 1 -OVERFLOW DATA AND UPSTREAM VELOCITY DATA: '
1)ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE(NONE=0, BROAD-WEIR=1, SHARP-WEIR=2)
19.17 0 '
2)SPECIFY TYPE OF VELOCITY DATA INPUT: S-SINGLE VELOCITY UPSTREAM
V-VARY VELOCITY ACCORDING TO V=Q/A
s
3)ENTER: VELOCITY(fps)UPSTREAM '
.00
-------------------------------------------------------------------------------
ENTER: QMIN, QMAX, QINCRE,PRINT-OPTION(STANDARD=1, CONDENSED=2,
EXPANDED=3)
2.00 2.10 .10 1 '
PIPE NO. 1: 53 LF- 12"CP @ 2.08% OUTLET: 14.40 INLET: 15.50 INTYP: 6 '
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
2.00 .90 16.40 * .012 .61 .42 .00 .42 .61 ***** .90
2 U .93 J&U * .012 .62 .43 .00 .43 .62 ***** .93 RIM EL,.
SPECIFY: R-REVISE,N-NEWJOB,F-FILE, S - STOP ,
f
SPECIFY [d:][path]filename[.ext] FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 1: '
bw3wv2.hw
SPECIFY: R-REVISE.N-NEWJOB,F-FILE.S-STOP
s
7
Stop-Program terminated.
' BASIN 3 NORTH TR TNK(WET VA I .T TO STA 51+95.0.32.5'LTl
KING COUNTY DEPARTMENT OF PUBLIC WORKS
' Surface Water Manasement Division
BACKWATER ANALYSIS PROGRAM
' Version 4.22
1 -INFO ON THIS PROGRAM
2-BWCHAN
3-BWPIPE
4-BWCULV
5-BWBOX
' 6-DATA-FILE ROUTINES
7-RETURN TO DOS
' ENTER OPTION
3
' BACKWATER COMPUTER PROGRAM FOR PIPES
' SPECIFY TYPE OF PIPE-DATA INPUT: K- KEYBOARD
F-FILE
k
ENTER:NUMBER OF PIPES
' 2
-------------------------------------------------------------------------------
' OUTFLOW CONDITIONS PIPE NO. 1 -TAILWATER DATA:
' 1)SPECIFY TYPE OF TAILWATER DATA INPUT:S-SINGLE TW-ELEV.
F-TW/HW DATA FILE
s
2)ENTER: TV,'-ELEV
16.43
-------------------------------------------------------------------------------
' "INPUT PIPE DATA BEGINNING WITH DOWNSTREAM PIPE AND WORK BACK"
ROUND/ARCH PIPE INPUT CODING INFORMATION:
PIPE TYPE CODING:
1 -CONC/SMOOTH BORE(n=0.012) 5 -CMP ARCH(NEW GEOMETRY)
' 2-CORRUGATED METAL(n=0.024) 6-CONC/SMOOTH ARCH(OLD)
3 - HELICAL CMP(n-fac varies) 7 -CONC/SMOOTH ARCH(NEW)
4 -CMP ARCH(OLD GEOMETRY) 8 -ROUND(user sets n-fac)
ARCH PIPE CODING-EQUIVALENT ROUND SIZE MUST BE INPUTTED PER FOLLOWING '
TABLE:
EQUIV-DIAM. OLD-ARCH NEW-ARCH * EQUIV-DIAM. OLD-ARCH NEW-ARCH
15" 18"X I I" 17"X 13" * 42" 50"X 3 1" 49"X 33" ,
18" 22"X 13" 21"X 13" * 48" 58"X 36" 57"X 38"
21" 25"X 16" 24"X 18" * 54" 65"X 40" 64"X 43"
24" 29"X 18" 28"X 20" * 60" 72"X 44" 71"X 47"
30" 36"X 22" 35"X 24" * 66" 79"X 49" 77"X 52" '
36" 43"X 27" 42"X 29" * 72" 85"X 54" 83"X 57"
INLET TYPE CODING: '
I -CMP/PROJ. 4-CP SOCKET/PROJ. 7-CMAP/PROJ. 10- OTHER(SEE
2-CMP/HDWALL 5-CP SQ.EDGE/HDWALL 8-CMAP/HDWALL FHWA REPORT
3-CMP/MITER 6-CP SOCKET/HDWALL 9-CMAP/MITER HDS NO.5) '
ENTER PIPE# 1:LENGTH(ft),DIA(in),PIPE-TYPE,OUTLET-IE,INLET-IE,INLET-TYPE
14.00 12.00 1 13.50 15.50 6
ENTER JUNC NO. 1: OVERFLOW-ELEV,BEND-ANGLE(deg), STRUC.DIA/WIDTH(ft),Q-RATIO '
20.40 90.00 2.00 1.39
ENTER PIPE#2: LENGTH(ft),DIA(in),PIPE-TYPE, OUTLET-IE,INLET-IE,INLET-TYPE ,
98.00 12.00 1 15.50 15.80 6
-------------------------------------------------------------------------------
INFLOW CONDITIONS PIPE NO. 2-OVERFLOW DATA AND UPSTREAM VELOCITY DATA:
1)ENTER: OVERFLOW-ELEV, OVERFLOW-TYPE(NONE=O, BROAD-WEIR=1, SHARP-WEIR=2) '
18.39 0
2)SPECIFY TYPE OF VELOCITY DATA INPUT: S - SINGLE VELOCITY UPSTREAM
V-VARY VELOCITY ACCORDING TO V=Q/A '
s
3)ENTER: VELOCITY(fps)UPSTREAM
.00 ,
-------------------------------------------------------------------------------
ENTER: QMIN, QMAX, QINCRE,PRINT-OPTION(STANDARD=1, CONDENSED=2, '
EXPANDED=3)
1.90 2.10 .10 1
PIPE NO. 1: 14 LF- - ,12"CP @ 14._990 OUTLET: 13.50 INLET: 1-�.�0 INTl'P: 6
JUNC NO. 1: OVERFLOW-EL: 20.d0 BEND: 90 DEG DIA/WIDTH: 2.0 Q-RATIO: 1.39 ,
Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
1.90 .82 16.32 * .012 .59 .25 2.93 2.93 .59 ***** .82
2.00 .85 16.35 * .012 .61 .26 2.93 2.93 .61 ***** .85
.89 16.39 * .012 .62 .26 2.93 2.93 .62 ***** .89 QK
r
rPIPE NO. 2: 98 LF- 12"CP @ .31% OUTLET: 15.50 INLET: 15.80 INTYP:6
r Q(CFS) HW(FT) HW ELEV. *N-FAC DC DN TW DO DE HWO HWI
*******************************************************************************
.79 .63 16.43 * .012 .38 .43 .82 .82 .58 .63 .52
r .84 .66 16.46 * .012 .39 .44 .85 .85 .61 .66 .53
$$ .69 16.49 * .012 .40 .45 .89 .89 .64 .69 .55 RIM EL.._= 18.39. OK
SPECIFY:R-REVISE,N-NEWJOB,F-FILE,S-STOP
r f
SPECIFY [d:][path]filename[.ext]FOR STORAGE OF HW-DATA AT INLET OF PIPE NO. 2:
rbw3nt2.hw
SPECIFY: R- REVISE,N-NEWJOB,F-FILE, S - STOP
1
S
7
Stop-Program terminated.
r
r
1
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r
1
r
1
i
1
1
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