Drainage Evaluation & Detention Structure Modifications
Client—Lexington Flood Control Zone District, Cowlitz County, Washington
Indian Creek Drainage Basin Analysis
Client—City of Longview, Washington
Regional Stormwater Management Plan
Client—Lewis County Flood Control District 1, Washington
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
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
Contact us to find out how Gibbs & Olson can help you.
STORMWATER
- Stormwater Mitigation (Treatment, Detention and Infiltration)
- Erosion Control
- Low-impact Development (LID)
- Hydrologic and Hydraulic Modeling
- Conveyance System Inventory, Analysis & Design
- Pump Station Evaluation and Design
