White Point Landslide, Los Angeles CA

For nearly 60 years, Shannon & Wilson has been recognized as a national leader in geotechnical and environmental engineering, playing a key role in the design and construction of challenging projects for both public and private clients. Shannon & Wilson specializes in geotechnical and earthquake engineering, tunneling, hydrogeology, instrumentation, and environmental services. From our offices in Sacramento and Los Angeles and with eight other offices and more than 300 staff across the country, we put the right people in place – whenever and wherever they are needed.

TRANSPORTATION

Sacramento Area Sewer District auger boring stream crossing – Sacramento CA

Transportation is our Forté – Nearly 60 percent of our geotechnical services support the design and construction of transportation facilities across the county, with extensive experience on large infrastructure and design/build projects. We provide design and construction solutions for:

• Major arterials and roadways
• Overpasses, tunnels, and viaducts
• Bridges
• Transit systems
• Ports
• Grade separations

RAIL

Shannon & Wilson has worked for all Class I railroads in the United States and Canada and numerous transit authorities providing passenger rail service.  Our thorough understanding of rail safety requirements and engineering operations allows us to provide innovative, cost-effective services ranging from routine design and construction engineering to on-call emergency response.  Our track record includes providing solutions for:

• New rail lines, siding extensions, and double-tracking
• New bridges, retaining walls, and tunnels
• Embankment failures, landslide remediation, and track instabilities
• Rock-slope stability, rock-fall mitigation, and early-warning measures
• New yards and intermodal facilities, including pavement recommendations
• Tunnel rehabilitation and clearance improvement

WATER/WASTEWATER

Sacramento Regional County Sanitation District Wastewater Treatment Plant – Sacramento CA

For both treatment operations and utilities, we help with siting, permitting, design, and construction.  Clients depend on Shannon & Wilson for sustainable solutions and integrated geotechnical, environmental, and natural resource services for:

• Pump stations
• Treatment plants
• Pipelines
• Tunnels
• Reservoirs and tanks
• Trenchless Construction

Shannon & Wilson, Inc. – dedicated to excellence, innovation, service, and value – since 1954.