HomeMy WebLinkAboutRS_Biological_Assessment_180907_v1.pdfBoat Lift Project
Biological Evaluation Addendum
Case # LUAt0-006
Date: May 23, 2018
Prepared for:
Gerry Cornwall
Conner Homes, Barbee Mill Community
4151 Williams Avenue N.
Renton, WA 98056
MARINE SURVEYS & ASSESSMENTS
267 Hudson Street
Port Townsend WA 98368
(360) 385-4073
marine.surveys. inc@gmail.com
Introduction:
This is an addendum to the original Biological Evaluation/Habitat Data Report (January
19, 2010) for the Barbee Mill Community Dock Project, City of Renton, case number
LUA10-006. The dock was completed in 2012 and subsequently, a boatlift was added
with an addendum to the Biological Evaluation completed August 5, 2013. The purpose
of this addendum is to address the City of Renton's municipal code 4-3-090-D.5.b. and 4-
3-090-E.1 (CRMS: 4-3-090-D.5b. and CRMS: 4-3-090-E.l.) "Building and Development
Location-Shoreline Orientation" and "Use Regulations", for the addition of a second
boatlift.
Project Location:
NW V4 Section 32, Township 24N, Range 05E
4151 Williams Avenue N.
Renton, W A 98056
Latitude: N 47.515745° Longitude: W 122.206114°
See Figure 1 for project location.
Project Information:
The project location for this boatlift was previously the site of the Barbee Mill Company
lumber mill, which has been restored to a residential neighborhood (Barbee Mill
community developed by Conner Homes at Barbee Mill LLC). The addition of this
proposed boat lift to the already completed dock at the project location is expected to
have little to no impact on the aquatic habitat as this area is already heavily developed
and disturbed. For a more detailed impact summary please refer to the original Biological
Evaluation.
Boat lift placement is in accordance with the City of Renton Municipal Code (CRMC: 4-
3-090-D.Sb and CRMC: 4-3-090-E.1). "Location of Development: Development and use
shall be designed in a manner that directs land alteration to the least sensitive portions of
the site." ( 4-3-090-D .5b). The boat lift will be located on the south side of the existing
dock where main dock and dockfingers delineate an area ofwater on three sides. "A
boatlift is allowed as an accessory to a residential dock: provided, that all lifts are placed
as far waterward as feasible and safe" (4-3-090-E.1). The proposed boat lift will be
located approximately 145 feet waterward of the OHWM and the restored riparian buffer
and approximately 27 feet landward from the end of pier. Please see Figure 2 for the site
plan and elevation detail. Photos showing the proposed boatlift location can be seen in
Figure 3.
The proposed boatlift will be a free standing unit composed of approved steel. It will rest
on the lakebed on four-foot pads at a depth of 14 feet. Boat lift details can be seen in
Figure 2. Construction equipment will be operated from an out-of-water location
whenever possible; this equipment will be operated in a manner that minimizes the
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suspension of particulates. All equipment used in or around water will be clean and
inspected daily prior to use to ensure that the equipment has no fluid leaks. Should a leak
develop during use, the leaking equipment will be removed from the site immediately and
not used again until it has been adequately repaired. No equipment will be stored or
fueled so close to the water that the activity could adversely impact the waterbody. Work
will be conducted within work windows designated by WDFW and the Army Corps of
Engineers.
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Figure 1. Vicinity Map
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Figure 2. Boat Lift Details
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Figure 3. Photos of Boat Lift Location
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