
Wastewater
We prepare hydrologic and hydraulic analysis to provide design parameters for capacity and allocation for collection and conveyance, pump station and treatment systems.

Stormwater
Our engineers stay current with the latest regulations, technologies, design criteria and stormwater management practices to provide our clients with sensible compliance solutions.

Site Design
We are familiar with the unique characteristics of our region. We understand the complexities of site development and can provide solutions that work for you.



Land Surveying
and Mapping
Our land surveying and mapping services range from preparing legal descriptions to performing highly sophisticated GPS/RTK surveying.



Water
Communities have trusted Gibbs & Olson for over 60 years to plan, design, and oversee the construction of public and private systems.



Wastewater
As you work to make your community a better place, we can partner with you to help plan, fund, design and implement the infrastructure you need.



Transportation
A successful road project can be a complicated process; our engineers ensure not just correct calculations but attention to details.



Stormwater
Gibbs & Olson performs hydrologic / hydraulic evaluations of large drainage basins and closed drainage systems.


Wastewater
We prepare hydrologic and hydraulic analysis to provide design parameters for capacity and allocation for collection and conveyance, pump station and treatment systems.


Stormwater
Our engineers stay current with the latest regulations, technologies, design criteria and stormwater management practices to provide our clients with sensible compliance solutions.



Site Design
We are familiar with the unique characteristics of our region. We understand the complexities of site development and can provide solutions that work for you.



Land Surveying and Mapping
Our land surveying and mapping services range from preparing legal descriptions to performing highly sophisticated GPS/RTK surveying.



Water
Communities have trusted Gibbs & Olson for over 60 years to plan, design, and oversee the construction of public and private systems.



Wastewater
As you work to make your community a better place, we can partner with you to help plan, fund, design and implement the infrastructure you need.



Transportation
A successful road project can be a complicated process; our engineers ensure not just correct calculations but attention to details.



Stormwater
Gibbs & Olson performs hydrologic / hydraulic evaluations of large drainage basins and closed drainage systems.
Latest News
- 2023 Laurel C. Gibbs Scholarship AwardedJune 8, 2023 - 7:59 pm
- We Are HiringMay 30, 2023 - 5:48 pm
- $ 2,500 Scholarship AvailableMarch 29, 2023 - 10:43 am
- Gibbs & Olson Awarded Elma Reservoir ReplacementJanuary 24, 2023 - 10:54 pm
- Join Us in Helping Community House on BroadwayDecember 5, 2022 - 6:19 pm
- Investing In Our FutureJune 9, 2022 - 10:56 am
Latest Projects
- Cowlitz 911 Public Authority Call CenterAugust 28, 2023 - 4:00 pm
- Water & Sewer Line SR411 BridgeMay 23, 2023 - 3:22 pm
- Drainage Evaluation & Detention Structure ModificationsMay 3, 2023 - 4:33 pm
- Exit 48 Water MainMarch 9, 2023 - 9:08 pm
- Paxton Transmission Main & Booster Pump StationMarch 7, 2023 - 11:26 am
- Al Helenberg Memorial Boat Launch Safety ImprovementsFebruary 14, 2023 - 8:30 am
- Deformation Monitoring & Sediment Cross Section SurveysJanuary 11, 2023 - 8:43 am