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SITE DESIGN, GRADING, UTILITIES & PUBLIC INFRASTRUCTURE
Civil Engineering
Fast, coordinated civil engineering for site design, grading, stormwater, and public infrastructure across Washington and Oregon — permit-ready plans that optimize your site’s full potential.
- Serving Washington & Oregon
- (509) 720-7048
- Veteran-Owned Small Business
- Small Business Enterprise (SBE)
- Certified Minority & Women’s Business Enterprise (WA OMWBE)
- Compliant with:
- ICC | IBC | LEED | NFPA | IEEE | ASHRAE | VA Standards
OVERVIEW
Smart, permit-ready site design
Columbia Engineering Group (CEG) delivers fast, coordinated civil engineering services designed to streamline development, accelerate permitting, and optimize your site’s full potential. Whether you’re building new infrastructure, managing public works, or subdividing land, our team has the experience, certifications, and real-world insight to move your project forward.
✓ Veteran-Owned & Certified Small Business (VOSB, SBE, MWBE)
✓ Experts in Commercial & Public Infrastructure Projects
✓ Fast Permit Turnaround & Local Jurisdiction Expertise
✓ Integrated MEP, Civil, & Structural Design for Full Coordination
✓ Multidisciplinary Team with 5+ Years Serving the Pacific Northwest
WHAT WE DELIVER
Core Civil Services
Five areas where CEG consistently delivers for civil clients — from the first site sketch through construction closeout.
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Site Development & Grading
- Full-service site layout and grading
- Access, earthwork, and drainage planning
- Subdivision design and land optimization
- Conceptual site layout & planning
- Grading & cut-fill optimization
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Stormwater Management
- Detention, infiltration, and water quality systems
- DEQ, Ecology, and city-compliant design
- Floodplain analysis & FEMA coordination
- Hydrology & drainage modeling
- Stormwater Pollution Prevention Plans (SWPPP)
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Utility Infrastructure
- Water, sewer, and storm utility design
- Lift stations, force mains, and fire suppression
- Utility conflict coordination & approvals
- Sewer & water system design
- Traffic & utility impact studies
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Erosion & Sediment Control
- BMP design for construction & post-construction phases
- Erosion prevention strategies for sensitive sites
- Long-term slope stabilization & soil protection
- Retaining wall & slope stability design
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Roadways & Parking
- ADA-compliant access plans
- Pavement and curb layout
- Striping, drainage, and site circulation
- ADA compliance & accessibility planning
DETAILED SERVICES
Civil Engineering Services
From conceptual layout through construction documents — we deliver site designs that maximize yield, move through permitting cleanly, and build without surprises.
Conceptual site layout & planning
Early-stage site configuration, setback analysis, and buildable area optimization
Grading & earthwork design
Cut-fill optimization, mass grading plans, and construction phasing for efficient earth movement
Subdivision design & platting
Lot layout, survey coordination, and preliminary/final plat documentation
Site feasibility & zoning review
Early feasibility analysis to identify constraints and opportunities before design dollars are spent
ADA compliance & accessibility
Accessible routes, ramps, parking, and code-compliant site circulation design
Construction phasing plans
We design stormwater systems that satisfy DEQ, Ecology, and city requirements — and hold up through inspection, construction, and long-term operation.
Detention & retention systems
Sizing, layout, and documentation for on-site storage and controlled release systems
Infiltration systems
LID and green infrastructure design for sites with infiltration potential
Water quality treatment
Treatment train design aligned with DEQ, Ecology, and local MS4 permit requirements
Hydrology & drainage modeling
Pre/post runoff analysis, drainage basin delineation, and downstream impact assessment
Floodplain analysis & FEMA coordination
FIRM review, LOMA/LOMR support, and floodplain encroachment documentation
SWPPP design
Erosion & sediment control
Retaining wall & slope stability
Clean, coordinated utility and roadway design that avoids conflicts, reduces RFIs, and moves through agency review efficiently.
Water system design
Distribution mains, service connections, fire suppression, and meter coordination
Sewer system design
Gravity sewer, lift stations, force mains, and connection to municipal systems
Storm utility design
Pipe network, inlets, manholes, and outfall design coordinated with stormwater requirements
Utility conflict coordination
Roadway & pavement design
Pavement sections, curb and gutter, lane configurations, and sight distance analysis
Parking layout & circulation
Traffic & utility impact studies
Construction administration
FULL CAPABILITIES
Everything We Do In Civil
A complete picture of our civil engineering capabilities — from early feasibility through construction closeout.
✓ Conceptual Site Layout & Planning
✓ Site Selection & Feasibility Studies
✓ Grading & Earthwork Design
✓ Utility Coordination & Design
✓ Stormwater Management Systems
✓ Sewer & Water System Design
✓ Erosion & Sediment Control
✓ Subdivision Design
✓ Construction Phasing Plans
✓ Grant-Supported Infrastructure Design
✓ Construction Administration
✓ ADA Compliance & Accessibility
INDUSTRIES SERVED
Built For Your Sector
We work across public and private sectors — from school districts and municipal agencies to commercial developers and industrial operators.
Government & Municipal
School District
Health Facilities
Public Safety
Commercial Development
WHO WE SERVE
Tailored To Your Role
Developers
Maximize yield. Minimize delays. We provide smart site planning, zoning analysis, and stormwater solutions that help Portland-area developers increase buildable square footage and move faster through permitting.
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Architects
Avoid rework and delays with coordinated, architecture-aligned grading and utility plans. We plug in seamlessly to your design team and help your vision become reality—on paper and in the field.
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Public Agencies
We design and support public infrastructure including sidewalks, drainage, ADA improvements, and roadway design. Local, certified, and responsive—CEG is built for public-sector performance.
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Contractors
Get clean, buildable civil drawings. Our plans reduce RFIs, eliminate guesswork, and accelerate construction with clearly detailed utilities, grading, and stormwater systems.
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Landowners
Have land you want to develop or subdivide? We provide honest feasibility reviews, explain zoning, and walk you through the process with no pressure and full transparency.
OUR PROCESS
How We Get Projects Done Right
Site Assessment
We evaluate your site, project goals, jurisdictional requirements, and opportunities for cost savings.
Design & Coordination
Our team delivers clean, code-compliant designs tailored to your site conditions, integrated across disciplines.
Permit Submission
We help prepare and support your civil permit applications with responsive revisions and jurisdiction knowledge.
Construction Support
From field RFIs to inspections—we’re here to ensure your site is built to spec with no surprises.
FEATURED PROJECTS
Civil Engineering Work We're Proud Of
Modern Apartments
Portland, OR
CEG engineered all civil elements for a 30-unit, 3-story Oregon apartment complex on a third of an acre, including stormwater design, utility planning, right-of-way dedication, and ODOT coordination. See more…
3-Lot Subdivision
Washougal, WA
CEG handled all civil engineering for a Washougal residential short plat, covering grading, retaining walls, utility coordination, and permitting to deliver an efficient three-lot subdivision solution. See more…
Aurora Airport Hangar
Aurora, OR
A 6.4-acre Aurora Airport aviation facility, with CEG providing full civil engineering including site grading, heavy-duty pavement, stormwater management, and utility coordination across two hangars with FAA and ODOT compliance. See more…
CLIENT TESTIMONIALS
What Our Clients Say
We let the work — and the people it served — speak for themselves.
They gave us honest answers, fast turnaround, and solid civil plans. Would absolutely hire them again.
— General Contractor, Vancouver, WA
CEG’s permit coordination saved us time and headache. Great experience from start to finish.
— Municipal Project Manager
Common Questions
Questions we hear often — answered directly, without the runaround.
What jurisdictions do you work in?
We have deep experience with Portland metro, Vancouver WA, and surrounding jurisdictions in Oregon and Washington. We also support multi-state programs in Idaho, California, Florida, and Wyoming.
Can you handle stormwater design for DEQ and Ecology compliance?
Yes — stormwater management is a core civil service. We design detention, infiltration, and water quality systems to meet Oregon DEQ, Washington Ecology, and local MS4 permit requirements.
Do you support land subdivision and feasibility reviews for landowners?
Yes — we provide honest feasibility reviews, zoning analysis, and subdivision design for landowners who want to develop or subdivide property. No pressure, full transparency on what’s possible.
Can you coordinate civil with MEP and structural on the same project?
Yes — integrated MEP, civil, and structural design is one of CEG’s core advantages. One team, one point of contact, fewer gaps between disciplines.
Do you support public agency and grant-funded projects?
Yes — we design and support public infrastructure projects including sidewalks, drainage, ADA improvements, and roadway design. We’re familiar with grant documentation requirements and public-sector review environments.
START YOUR PROJECT
Ready to Build with Confidence?
CEG is your partner for high-performance, site-ready civil engineering solutions. We serve WA, OR, ID, FL, WY, and CA with veteran-led precision, full-service coordination, and a deep understanding of the real-world construction process.
- 509.720.7048
- info@cegiusa.com
- 17509 NE 56th Ct, Vancouver, WA 98665
- Monday – Friday 8:00 AM – 5:00 PM PT
Other Services
🏛️ Structural Engineering
⚙️ Mechanical Engineering
⚡ Electrical Engineering
🔧 Plumbing Engineering
Fire Protection Engineering
Let’s Start Your Project
Complete the form below and a member of our team will follow up within one business day to discuss your project.