Broadway Avenue SURGE Project

Spokane, WA



Sustainable Design


Civil Engineering

Community Planning

Landscape Architecture


Stormwater retrofit project located in an urban commercial/residential district

Replaced existing concrete sidewalks with pervious concrete

Provided a series of 28 16’ x 5’ storm gardens

Pilot project wins award for innovative stormwater techniques.


The City of Spokane selected AHBL to implement their first project under the Spokane Urban Runoff Greenway Ecosystem (SURGE) program, funded through the Washington State Department of Ecology FY 2010 Supplemental Water Quality Financial Assistance program and American Recovery and Reinvestment Act (ARRA). Located in an urban commercial/residential district near the County Courthouse, the West Broadway Avenue SURGE's goals included reducing stormwater runoff volume to the City's combined sewer system; providing enhanced stormwater treatment with integrated green stormwater infrastructure techniques; improving the streetscape aesthetics and pedestrian experience; and providing an opportunity to evaluate performance and feasibility of implementing throughout the City of Spokane. AHBL's scope included replacing existing concrete sidewalks with pervious concrete, replacing the existing curb, and providing a series of twenty-eight 16' by 5' Storm Gardens which were coordinated around existing mature trees, driveways, and utilities.

Recipient of the U.S. Environmental Protection Agency’s Performance and Innovation in the State Revolving Funding Creating Environmental Success (PISCES) Award (2011)