Sanbell
Intelligent Infrastructure. Enduring Communities.
About the firm
Sanbell is an award-winning, multi-disciplinary planning, design, and engineering practice with over 300 professionals across 14 offices in the Western United States. Formed in 2023 from the merger of Sanderson Stewart, Bellecci & Associates, and Summit Engineering, and later expanding with Coleman Engineering and Core Design, Sanbell partners with public and private clients to deliver civil infrastructure, water and wastewater systems, transportation networks, land development, mining civil support, landscape architecture, and community planning. The practice serves communities across California, Colorado, Montana, Nevada, Texas, and Washington, and is ranked No. 378 on ENR's 2026 Top 500 Design Firms.
- Established
- 1969
- Team
- Large
- Firm type
- Civil Engineering · Transportation Engineering · Land Surveying · Landscape Architecture · Water / Wastewater Engineering · Mining Engineering
People
Michael SandersonCEO
Glenn SpragueManaging Principal, Sanbell Northwest
Capabilities
Civil Engineering
Service websiteComprehensive civil infrastructure engineering solutions for municipal and site development projects across the Western United States.
- Site Development
Detailed engineering and layout design for complex municipal and private sites.
- Grading and Drainage
Earthwork calculations and stormwater management planning to secure site stability and proper runoff control.
- Utilities Design
Engineering of wet and dry utility networks to support community infrastructure.
- Municipal Infrastructure Design
Public agency support for localized utility, roadway, and city-wide utility planning.
Transportation Engineering
Service websiteMultimodal transit and roadway engineering to optimize safety, connectivity, and capacity.
- Roadway Design
Geometrics, paving, and alignment design for municipal streets and regional highways.
- Traffic Analysis
Systematic capacity assessments and traffic impact studies to guide planning choices.
- Complete Streets
Designing integrated roadways that balance transit, auto, pedestrian, and cycling requirements.
- Pedestrian and Bicycle Facilities
Planning and engineering dedicated pathways, sidewalks, and lanes for active mobility.
- Traffic Engineering Studies
Safety assessments, speed limit investigations, and traffic pattern analyses for public agencies.
Traffic Engineering
Service websiteSystem analysis and signal design to enhance safety and efficiency on regional transport corridors.
- Traffic Signal Design
Engineering electrical and phasing plans for intersections and warning systems.
- Safety Analysis
Crash data review and countermeasure planning to reduce traffic risks.
- Transportation Planning
Long-range corridor studies and network planning to support regional growth.
Land Development
Service websiteComprehensive consulting and engineering services that guide land projects from initial concept through to final construction.
- Entitlements
Navigating local regulatory approvals, permitting processes, and land use clearances.
- Master Planning
Creating long-term growth and layout frameworks for large-scale real estate parcels.
- Site Design
Developing structural site layouts, parking plans, and utility footprints.
- Development Engineering
Technical design and civil engineering integration specifically for private sector land projects.
Land Surveying & Mapping
Service websiteProfessional boundary determination, mapping, and geospatial services to establish exact spatial frameworks.
- Boundary Surveys
Legal determination and mapping of property lines and easements.
- Topographic Mapping
Detailed elevation and terrain mapping to support design and engineering activities.
- Construction Staking
Translating design blueprints into exact physical marks on construction sites.
- ALTA/NSPS Surveys
Providing standardized, highly detailed surveys to satisfy strict commercial real estate and title insurance requirements.
- Drone Surveying
Utilizing aerial unmanned vehicles to capture rapid, high-resolution topographic data.
- GIS Services
Creating and managing geographic information systems to organize spatial assets.
Community Planning
Service websiteCreating zoning and land use strategies that support sustainable, vibrant neighborhood development.
- Zoning Consulting
Aligning proposed developments with municipal ordinances and helping secure variances.
- Land Use Planning
Developing regional policies and allocation frameworks for agricultural, residential, and commercial growth.
- Public Engagement Services
Facilitating community workshops and public hearings to build local consensus.
Landscape Architecture
Service websiteAesthetic and ecological site planning for parks, streetscapes, public spaces, and private developments.
- Placemaking
Designing memorable, engaging public spaces that foster community interaction.
- Parks and Open Space Design
Planning recreational trail networks, public parks, and preserved natural corridors.
- Streetscape Design
Integrating urban landscaping, street furniture, and pedestrian pathways into transport corridors.
Water & Wastewater Engineering
Service websiteEngineering durable utility networks, treatment systems, and distribution lines to manage vital water resources.
- Utility Distribution Design
Engineering layout, pressure systems, and piping networks for clean water supply.
- Treatment Facility Engineering
Designing biological and mechanical processes for clean water and wastewater treatment plants.
- Collection Systems
Sizing and routing gravity sewers and force mains to safely convey wastewater.
Construction Management & Inspection
Service websiteProviding on-site oversight, administrative control, and quality verification for infrastructure projects.
- Construction Inspection
Verifying that on-site installations comply exactly with engineering designs and safety standards.
- Project Administration
Managing schedules, processing change orders, and coordinating communications between owners and contractors.
Mining Civil Support
Service websiteCivil and geotechnical engineering to support mining operations and natural resource extraction.
- Mine Site Development
Designing layouts, grading plans, and sediment basins for active extraction zones.
- Haul Road Design
Engineering heavy-vehicle transport routes to ensure safe and efficient mine logistics.
- Geotechnical Investigations
Assessing soil and rock stability to prevent slope failures and secure foundations.
Industries
Land Development · Infrastructure · Transportation · Highways & Roads · Water Supply · Wastewater · Mining · Natural Resources · Government · Residential · Commercial
Projects
No projects listed yet.