Districts

Because we operate from four District offices, we are able to utilize our nationwide resources as a tremendous database of strategies and solutions to meet hypercritical deadlines with minimal lead-time. Our personnel function as a team throughout each of our Districts, often moving to various regions to provide management during critical project phases.

Rocky Mountain District
7353 S. Eagle Street, Centennial, CO 80112
PH: 303.627.2600, FX: 303.627.2626
Email: sema@semaconstruction.com

Started in 1991, SEMA’s Rocky Mountain District is one of the region’s largest heavy highway contractors. For the past several years, SEMA has been ranked by Engineering News Record as one Colorado’s largest highway contractors. The Rocky Mountain District shares its space with the Corporate Headquarters.

We have worked for numerous public and private owners in this region, including the Colorado Department of Transportation, the Kansas Department of Transportation, Union Pacific Railroad, Burlington Northern Santa Fe Railway, and Xcel Energy.

A select few of our current projects:

Red Rocks Parking Lot and Traffic Control CM/GC Phases I and II
Peoria Crossing Design-Build
Denver Water – Marston Dam


California District
320 Goddard Way, Suite 150, Irvine, CA 92618
PH: 949.470.0500, FX: 949.829.0100
Email: sema@semaconstruction.com

SEMA’s California District is one of Southern California’s largest heavy highway contractors. The California District opened in 2002 to meet the highway construction demand in the Orange County area.

We have worked for numerous owners throughout southern California including Riverside County, Orange County, Metropolitan Transportation Authority, the City of Los Angeles, and the Metropolitan Water District of Southern California. Additionally, we have worked with private owners including Vestar/Kimco Tustin LP and Pulte Homes.

A select few of our current projects:
RTE 91 Riverside HOV Lanes
UPRR – Tehachapi Cliff Siding Extension
SR 79 Winchester Road


Southeast District
6200 Hazeltine National Drive, Suite 100, Orlando, FL 32822
PH: 407.563.7900, FX: 407.563.7999
Email: sema@semaconstruction.com

SEMA’s Southeast District is located in Orlando and is one of the region’s largest heavy highway contractors. The Florida District opened in 2008 after securing our first Florida Department of Transportation project on I-4 in Volusia County.

We have successfully bid on many projects for the Department of Transportation, Florida Turnpike Authority, Orange County, Polk County and the Orlando-Orange County Expressway Authority.

A select few of our current projects:
Orlando International Airport South Pile
I-95 & JT Butler Design-Build
Epcot Center Drive Interchange


Texas District
2331 Mustang Drive, Suite 300, Grapevine, TX 76051
PH: 817.251.5001, FX: 817.251.2344
Email: sema@semaconstruction.com

SEMA’s newest district opened its doors in 2009 and in just a short time has made its mark in the Texas transportation industry by working with owners such as the Texas Department of Transportation and the North Texas Tollway Authority. SEMA has also been selected by Burlington Northern Santa Fe to participate in procurement opportunities for projects in Texas.

A select few of our current projects:
East First Street Improvements
I-35 Underpass at Bud Stockton Loop
SH 195 Phase II