Stormwater Management Plan
Client—Pacific County, Washington
Drainage Analysis & Flood Mitigation
Client—City of Oakville, Washington
Tennant Way Stormwater LID Improvements
Client—City of Longview, Washington
16th Street Combined Sewer Overflow Separation Project
Client—City of Astoria, Oregon
Downtown Corridor LID Improvements Pre-Design Report
Client—City of Longview, Washington
SR 503 Intersection Improvements
Client—City of Woodland, Washington
11th Street Combined Sewer Overflow Separation Project
Client—City of Astoria, Oregon
Dilly Twig Creek Basin Drainage Plan
Client—Lewis County Flood Control District 1, Washington
Stormwater Master Plan
Client—City of Kelso, Washington
Drainage Evaluation & Detention Structure Modifications
Client—Lexington Flood Control Zone District, Cowlitz County, Washington
Contact us to find out how Gibbs & Olson can help you.
- Stormwater Mitigation (detention and treatment)
- Erosion Control
- Low-Impact Development
- Hydrologic/Hydraulic Studies
- Conveyance System Inventory and Analysis
- Pump Station Evaluation and Design
