Wastewater Treatment Plant Improvements
Washington · Wastewater · 2026
Project details
Civil engineering design for wastewater treatment plant improvements.
Gibbs & Olson, Inc.
Immersed in the communities we serve
About the firm
Gibbs & Olson, Inc. has served municipal and private clients across southwestern Washington for more than 70 years, delivering civil engineering and land surveying for water, wastewater, transportation, and stormwater infrastructure. Its services span water system planning and source development, wastewater collection and treatment, stormwater management, transportation and roadway design, site design, and GPS/RTK land surveying. Recent completed work includes wastewater treatment plant improvements, roundabout design, road safety improvements, water main evaluations, and regional trail systems throughout Cowlitz and Lewis counties.
- Firm type
- Civil Engineering · Land Surveying · Water / Wastewater Engineering
Capabilities
Land Surveying
Service websiteComprehensive surveying and mapping services from legal descriptions to GPS/RTK, ALTA/NSPS, and bathymetric surveys.
- Topographic and Boundary Surveys
Original boundary, retracement, topographic, and construction surveys for engineering and legal purposes.
- GPS / RTK Surveys
High-accuracy GPS and real-time kinematic surveys, including GIS data capture and aerial mapping survey assistance.
- FEMA Levee Certification
Levee certification surveys and deformation monitoring for FEMA compliance.
- Bathymetric Surveys
Hydrographic and bathymetric surveys for waterways, lakes, and reservoirs.
Water Systems
Service websiteAll aspects of water system engineering including system plans, modeling, source development, water quality and treatment, booster pump stations, reservoirs, and distribution piping.
Wastewater Systems
Service websiteWastewater system engineering covering collection and conveyance, pump stations, and treatment systems.
Stormwater and Drainage
Service websiteInnovative stormwater management design applying current regulations, technologies, and design criteria.
Transportation Engineering
Service websiteRoadway and transportation design including traffic flow analysis, pedestrian and bicycle route planning, and roundabout design.
Site Design
Service websiteSite planning and design services for new construction, building additions, and multi-phase expansion projects.
Industries
Government · Water Supply · Wastewater · Stormwater & Flood Control · Highways & Roads · Infrastructure
Projects
Elma Main Street & US Route 12 Roundabout
Elma, WA · Highways & Roads · 2026
Project details
Design of a roundabout at Main Street and US Route 12 in Elma, Washington.
Vader Water System Improvements
Vader, WA · Water Supply · 2026 · Client: Lewis County
Project details
Water system improvements for Lewis County, Washington.
Columbia Heights Road Safety Improvements
Washington · Highways & Roads · 2026
Project details
Road safety improvements for Columbia Heights.