
SJH Engineering, P.C.
Princeton, NJExpert Engineering, Design, and Construction Management Solutions
Project: Portal Bridge
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Expert Engineering, Design, and Construction Management Solutions
Project: Portal Bridge
Civil, structural, and stormwater consulting engineering based in Knoxville
Project: Mill Creek Power Station Stormwater Management
Designing for Durability, Inspecting with Integrity
Service detail: Bridge Design

High Standards. Maximum Results.
Project: US377 Cresson Bypass
Sommer Engineering, Inc. is a Newport Beach, California civil and transportation engineering firm focused on the Southern California transportation market. Founded in 2020 by Merideth Cann, P.E., it applies more than 30 years of transportation industry experience to serve regional and local transportation agencies. Its work spans civil design for highway corridors, managed lanes, alternative delivery projects, rail and transit, grade separations, highway interchanges, and the design of bridges and retaining structures, as well as parking facilities and electric vehicle infrastructure planning. Clients include Los Angeles Metro, the Riverside County Transportation Commission, Caltrans Districts 7 and 8, Los Angeles World Airports, and multiple local agencies.
Service detail: Civil Engineering & Design

Elevating Engineering: Innovation, Expertise, Excellence
Project: Maintenance of Traffic
Connect. Create. Contribute.
Project: I-490/IL 390 Interchange
People-First Transportation Engineering
Project: City of Thornton 104th Avenue Widening (CO 92 to US 85)
TEDSI Infrastructure Group is a traffic and transportation engineering firm dedicated exclusively to traffic and transportation infrastructure improvements, with offices in Houston and Mission, Texas. Its staff brings decades of experience in planning, engineering, design, and implementation across traffic signal systems, roadway and highway design, hydrology and drainage, and intelligent transportation systems.
Service detail: Transportation Services
Nationally Recognized Engineering & Quality Services
Project: TxDOT Southern Gateway Design-Build
Civil Engineering, Surveying & Construction Management
Project: IDOT Jane Byrne Interchange Reconstruction
Delivering Small Firm Service and Expertise with Large Firm Experience and Innovation
Project: Edens Spur Roadway and Bridge Reconstruction

Client First
Project: Berryessa BART Station Campus
Designing Infrastructure, Redefining Horizons
Project: US 75 Roadway Widening and Reconstruction