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Subwatershed Master Planning

The final draft of the Subwatershed Master Plan and it's accompanying documents are posted for your review. The draft was presented at the November 16, 2016 Advisory Committee meeting and is now available to read under the documents sections to the right of this page. You can also read the plan here. 

BBWARM is completing subwatershed master plans for developed subbasins within the BBWARM district. This planning effort began in 2011 with EPA grant funding for the first plan and includes: 
  • Inventory of existing stormwater systems and facilities (ditches, pipes, catch basins).
  • Hydrologic analysis and modeling of stormwater flows.
  • Identification and evaluation of stormwater problems and recommended solutions including maintenance, small works, and capital improvement projects.
  • Public participation through stakeholder meetings. 
  • Completion of subwatershed master plans.

Each plan provides detailed information on stormwater facilities and stormwater flows within designated subbasins.  The planning process includes a capital project scoring criteria used to prioritize projects for BBWARM's six-year capital plan and Whatcom County's Water Resources Improvement Program.  Once complete, each subwatershed master plan will be considered by Whatcom County Council as an amendment to the 2006 Birch Bay Comprehensive Stormwater Plan.

The map below shows subwatershed master plan areas (click on the map to view at full size).  Subwatershed master plans are complete for the Central North and Central South Subwatersheds. Work is currently underway on the Birch Point, Terrell Creek Urban Area, and Point Whitehorn Subwatersheds.  Subwatershed master plans will not be completed for rural subbasins in the Terrell Creek watershed.
subwatershed map


Birch Bay Central North Subwatershed Master Plan


Inspecting a catch basin.

Whatcom County Public Works employee Andrew Tischleder inspects a catch basin for the stormwater facility inspection and inventory.