TranTech Engineering LLC is an innovative transportation firm in Washington State with experienced and award winning staff, globally recognized for their outstanding achievements in areas of transportation and civil projects.

From Alpha Engineering Group, Inc. (Alpha), to Harding Lawson & Associates (HLA), to MACTEC; TranTech Engineering, LLC’s (TranTech) roots go back 25 years in providing transportation consulting engineering services in the Puget Sound region.

We provide specialty expertise in transportation engineering arenas like structural, traffic, and construction administration. Our innovative solutions enable us to deliver in the most timely and cost effective way.

TranTech makes a commitment to every client when selected for Professional Services Contracts. Our commitment provides the Agency with a key project manager, support staff and the technical resources to complete a project in a timely manner at a reasonable cost. TranTech understands the nature of the work to be performed and has developed a management structure to provide high quality products.

Our engineers are available to manage all aspects of an Agency’s on-call demands from our Bellevue and Bellingham offices. Our staff includes project managers in public works disciplines such as structural, civil, roadway, traffic, and storm water engineering, and construction management and inspection, as well as project support personnel such as CADD technicians. Our management structure and approach have been designed to be flexible and responsive to fluctuations in the contract workloads.

We are very familiar with the nature of on-call contracts as our staff works mostly for local, state and federal government agencies. We have provided structural and civil on-call services to many government agencies in the State including the Seattle Department of Transportation; Counties of Snohomish, King, Skagit, and Whatcom; and Cities of Bellingham, Everett, Mount Vernon, Tukwila, and Ferndale. The nature of our work has afforded us considerable experience with Federal and State funding, LAG Manual procedures, and reporting requirements.