Walbec Group

    • Walbec Hero Img
    • Walbec 24
    • Walbec 17
    • Walbec 2

1st Street Bascule Bridge

The South 1st Street Bascule Bridge project spans the Kinnickinnic River between Maple and Becher Streets in the City of Milwaukee. At $8.7 million dollars, it highlights the complexity of a movable bridge.

A similar-sized immovable bridge project would have been closer to $1-2 million to replace.

This project was bid by Jason Samz, managed by Eric Van Dixhorn and the crew was led by the foreman, Roger Williams.

Construction began back in June of 2017 and was completed in November.

This was a technically challenging project for ZTI with challenges such as long lead times on new materials and the difficulty of refurbishing existing materials. Roger and his crew were prepared to exceed the expectations of the City of Milwaukee due to their extensive experience with lift bridges.

Throughout his Zenith Tech career, Roger and his crew have worked on 13 lift bridges! Some of their most recent project experience includes the St. Paul lift bridge, Pleasant St. lift bridge in Milwaukee and the Sturgeon Bay Bridge in Door County.


As with every project, we LIVE our core values each and every day. On this ZTI bridge, our team worked smart & safe by installing a platform underneath the closed leaf to help with safe and efficient access during the painting and installation of new steel.

Each time a challenge came their way, their collaborative effort connecting the expertise of the foreman, project manager, and engineering department, helped them to seek innovative solutions. Developing a cofferdam system that allowed for performing underwater repairs to the front face of the piers is just one example.

The team was also required to install the new drive machinery to tolerances of +/- 1/32”. These tolerances are unheard of for normal road construction standards.

Partnering with OSM Engineering, a supplier/consultant from Minnesota who has extensive experience in mechanical and machinery systems, was essential to meet that requirement.

Due to the location, in the heart of Milwaukee, this newly refurbished bridge strengthens the community for years to come. Built in 1957, it was in rough shape but is truly a historically-significant structure in the City.


It's always good when a successful project leads to future work.
The ZTI team has recently begun working on the Wells St. lift bridge.



Milwaukee, WI


November 2018