MAINTENANCE AND SMALL WORKS PROJECTS
A new small works program was initiated in 2017, aimed at addressing smaller-scale, low-cost construction and maintenance projects. All small works projects identified in the subwatershed master plans were evaluated and ranked based on time, cost, severity, access, permitting, and other factors.
Henley Street Drainage Improvement
An insert-a-tee was installed on Henley Street to connect a private property owner's downspouts into the county's stormwater conveyance system to improve drainage.
Nootka Loop Duckbill Check Valve
Regular flooding occurs at the ditch along Birch Bay Drive at Nootka Loop.
This ditch drains directly into a slough off of Birch Bay, and flooding usually occurs in conjunction with high tides and rain events.
In order to alleviate flooding, a new catch basin will be installed with a duckbill check valve on the upstream pipe to prevent backflow from the slough.
This design is a cost effective and low-maintenance solution to the flooding.
Project completed in November 2020.
This ditch floods every year and frequently spills into residential yards
Installation plans for the duckbill check valve
Henley Street Drainage Improvements (in the Cottonwood Creek channel)
Down-cutting has occurred through the embankment at the outfall to Cottonwood Creek.
Improvements were designed to provide stabilization measures associated with ditch and culvert systems .
A cross culvert was installed under Henley Street to convey all runoff to one side of the street.
Completed on October 18, 2019.
Photo of the improved outfall to Cottonwood Creek
The NPDES Maintenance & Operations (M&O) crew installed a new cross culvert under Henley Street and rock armoring on the steep channel to the creek.
Terrill Drive Drainage Improvement
Removed a collapsed drain pipe and installed a new pipe and catch basin.
Completed on April 16, 2019.
Terrill Drive: The NPDES Maintenance & Operations (M&O) crew removed a rotten and collapsed storm drain pipe within the road right-of-way on Terrill Drive and installed a new pipe and catch basin on April 15-16.
Drainage improvements on:
Cottonwood Drive at Idlesse Condominiums
Fir Street catch basin and culvert placement
Alder Street jetting, pipe replacement, and catch basin repair
Henley Street jetting and culvert video inspection
Birch Bay Drive lid replacement on buried vault
Halverson Park/Alder Street ditch stabilization (photo right)
Beach Way Drive ditch maintenance and catch basin repair
Cottonwood Creek bank stabilization
Residential connection to stormwater conveyance system
on Birch Bay Drive
The county’s M&O crew worked to stabilize a severely incised ditch that deposits stormwater into Halverson Park Creek. Channel armoring will help slow the water, reduce erosion, and decrease sediment transport into the creek.
In 2017, video inspections of conveyance systems were conducted in several neighborhoods and drainage improvements were made, including ditch maintenance, catch basin (CB) replacements, and vault repairs. As new incidents are reported by community members, they will be investigated by the BBWARM program specialist and added to the list.
Drainage improvements on:
Birch Bay RV Campground
Fir, Alder & Beach Way
Birch Bay Drive buried vault repair
Henley & Ritchie catch basin replacement
Comfort Lane catch basin replacement
Responding to public inquiries and requests for drainage facility maintenance
Existing catch basin structures (left) and their replacements (right).
Video inspection of a storm main along Birch Bay Dr.
MAINTENANCE & OPERATIONS
Whatcom County Public Works Maintenance and Operations is responsible for the regular maintenance of drainage facilities in county road rights-of-way. Whatcom County's National Pollutant Discharge Elimination System (NPDES) permit establishes additional stormwater facility inspection and maintenance requirements for the Birch Bay Urban Growth Area (UGA). BBWARM works to assist Whatcom County in these maintenance programs and enhance their level of service when possible. Maintenance of privately owned stormwater facilities is the responsibility of the property owner(s).
To report a problem with a county road drainage system
call Whatcom County Public Works Central Shop (360) 778-6400