North Street Enhancement Project

Special Applications - Environmental Merit

Project:
North Street Enhancement Project, porous concrete sidewalks, Olympia
Category:
Environmental Merit
Owner:
City of Olympia
Design Team:
Wilder Construction Co. of Olympia, general contractor
Concrete Services of Kent, concrete contractor
Holroyd Co. of Tacoma, ready-mix supplier


When it came time to rehabilitate North Street, the city of Olympia wanted to add 1,500 feet of new sidewalks while mitigating for the increase in stormwater runoff.

Rather than spend $110,000 on a pond for stormwater detention and treatment, the city decided to install a porous concrete sidewalk. The increased cost of the porous sidewalk was about $10,000 - saving $100,000 by not building a detention pond.