Located in the Phinney Ridge neighborhood of Seattle, Coterra provides civil engineering services to private organizations and public agencies, offering a range of expertise in various markets and project types.

Services
-  Site development
-  Temporary erosion and sedimentation design
-  Site demolition plans
-  Foundation and subsurface drainage plans and design
-  Paving and grading design
-  Drainage design
-  Low impact/green infrastructure design (LID/GSI)
-  Sanitary sewer, water systems, and utility design
-  Roadway design
-  Plan, specifications, and cost estimate preparation
- Site feasibility analysis

Markets
-  Private development
-  Public facilities development
-  Low-income housing
-  K-12 education
-  Higher education  
-  Municipal construction
 
Project Types
-  Multi-family housing, subdivisions, and short plats
-  Public facilities and buildings
-  Schools and campuses
-  Parks
-  Transportation infrastructure

Coterra Engineering, PLLC is certified with the Washington State Office of Minority and Women’s Business Enterprises (OMWBE) as a Disadvantaged Business Enterprise for the federal program and a Minority Business Enterprise for the state program.

Coterra Engineering, PLLC

Org chart

Teams

Offices