Roadway, bridge and transportation construction expertise for WisDOT, counties and municipalities - supported by responsive coordination, practical design and experienced field oversight.
Lynch & Associates carries Wisconsin transportation projects from first survey to final punch list - for WisDOT, county highway departments, municipalities, and the lead engineering firms that team with us. Most of our state work delivers in WisDOT's Southeast Region, with three-party bridge projects reaching into the Northeast Region, and we are equally at home as prime consultant or as a specialty subconsultant inside a larger team.
From a single intersection redesign to a multi-bridge rehabilitation project spanning miles of state highway, our transportation team brings the same commitment to every project: listen carefully, design smart, deliver on time. For state highway work specifically, see our WisDOT engineering consultant page.
Most firms pick a side of the plan set. We deliberately staff both - because designers who have inspected, and inspectors who have designed, catch what single-discipline teams miss.
Five miles of STH 67 carried through preliminary and final design for WisDOT, environmental process included. Seven USH 12 bridges rehabilitated as lead structural subconsultant to DAAR - structure survey reports, load ratings, staging, and complete PS&E. Three-party municipal bridges designed at Mt. Tom Road, Spring Prairie Road, and Center Road in Manitowoc County.
Our own inspectors on the I-41 North-South corridor, IH-43 from Moorland Road to Hale, and the Waukesha Bypass with RA Smith - plus full construction management, inspection, and materials testing on Goold Street in Racine (WisDOT ID 2703-11-70). Daily documentation, verified quantities, and staging that keeps traffic moving.
On a federally or state-funded local project, the State Municipal Agreement is the document the municipality or county signs with WisDOT. It sets the funding arrangement - which project costs are eligible, what the local share is, and who is responsible for the finished facility.
A three-party contract is a separate document that engages the engineering consultant, with WisDOT, the consultant, and the local government each holding defined roles. One agreement determines what the project costs your community; the other determines who does the engineering. Communities sign both, usually at different points in project development.
Highway geometrics, proper drainage, adequate sight distances, and compliant signing - designed for safety, efficiency, and long-term maintainability.
Bridges, culverts, and retaining walls designed for durability, efficiency, and constructability. Includes load ratings, PS&E packages, and abutment-to-superstructure design.
Traffic modeling, intersection studies, optimized signal timing, and capacity analysis - tools that make roads move better without adding lanes.
Safe Routes to School planning, accessible sidewalk networks, curb ramps, and multi-use trail design. We take pedestrian safety seriously at every scale.
Paved trails, boardwalks through wetland areas, ecological impact planning, and connections to recreational destinations - as demonstrated on the Gold Star Memorial Trail.
Culvert design, ditch grading, flume removal, and stormwater management integrated into roadway and bridge projects.
Managing the full regulatory process with WisDOT, FHWA, DNR, Army Corps of Engineers, and local municipalities - keeping your project on schedule through the approvals process.
Complete final design packages ready for letting - special provisions, quantity estimates, and bid-ready documents, the same packages STH 67 and the USH 12 bridge program went to construction on.
Staging plans, detour design, and lane-closure sequencing that keep traffic moving through construction - night operations on I-41, a managed full closure on Goold Street, and two coordinated night shutdowns for the STH 20 utility relay.
Structural consultant on 7-bridge rehabilitation. Full PS&E documentation, load ratings, and emergency girder repair addendum after an impact event.
Concrete patching, resurfacing, curb and gutter, flume removal, and ditch restoration along the I-43 corridor.
Abutment design for a prefabricated trail bridge for Milwaukee County. Structural design, hydraulic analysis, and permitting.
Preliminary design of a 2.1-mile paved multi-use trail from Mayville to Horicon Marsh, incorporating wetland boardwalks.
Lynch provides roadway and intersection design, bridge and structural engineering, hydraulic and drainage design, pedestrian and ADA improvements, multi-use trail design, traffic analysis, agency coordination, and complete plans, specifications and estimates (PS&E). We work with WisDOT, counties, municipalities and other engineering firms on projects ranging from local bridge replacements to state highway corridors and interstate construction.
Yes. Lynch works on WisDOT transportation projects as both a prime consultant and subconsultant. Our experience includes roadway and bridge design, PS&E delivery, environmental coordination, construction management, inspection and survey. Recent work includes STH 67 design, USH 12 bridge rehabilitation, I-41 and I-43 construction inspection, and locally sponsored bridge projects delivered through WisDOT.
A three-party consultant contract involves WisDOT, the engineering consultant, and the local government sponsoring the project. It is not the same as the State Municipal Agreement, which sets the funding arrangement and the responsibility for the finished facility between WisDOT and the local public agency. Most local bridge and roadway projects involve both documents.
Yes. Lynch intentionally maintains both design and construction capabilities. Our engineers design roadway and bridge improvements, while our construction staff provides field inspection, documentation, quantity verification and construction management. Having experience on both sides of the plan set helps our team anticipate constructability issues during design and respond efficiently to field questions during construction.
PS&E stands for Plans, Specifications and Estimates. It is the coordinated package of drawings, specifications, quantities, special provisions and cost information used to prepare a transportation project for bidding and construction. Lynch has prepared complete PS&E packages for WisDOT and locally sponsored transportation projects, including roadway corridors and bridge replacements.
Yes. Lynch provides bridge engineering for local governments, including structural design, hydraulic analysis, roadway approaches, environmental coordination, agency coordination and PS&E. Projects include Mt. Tom Road and Spring Prairie Road in the Town of Burlington and Center Road in Manitowoc County.
Yes. Lynch regularly works as a specialty subconsultant within larger transportation teams. Depending on the assignment, our role can include roadway design, structural engineering, survey, construction inspection, construction management or other project-specific services. Lynch is also certified as a Woman-Owned Business Enterprise and WisDOT Disadvantaged Business Enterprise.