Project Description

Oakland County, Michigan

As progress continues on the I-75 Modernization Project within Oakland County, Michigan, wall 7 of the MDOT’s Segment Two of the massive interstate highway widening and upgrading project is fully installed and looks spectacular!

As part of the reconstruction of the southbound lanes on the I-75, two-parallel noise absorptive walls were determined as per the Traffic Noise Modelling Software (TMN) which was used to determine noise wall feasibility.

With the extensive experience the contractor has had with Durisol on past projects within other parts of the States, the Walsh/Toebe Joint Venture was confident when calling in our team to the design-build table.

While it was our first design and supply opportunity with MDOT, it was also their first-ever absorptive wall. By involving our team early-on in the project, they were able to leverage our complete in-house design capabilities to best optimize the noise walls.

From budget to delivery, Durisol worked with Walsh and Parsons to maximize every angle of the noise walls. A proven post and panel design utilized our available inventory. And while different from the other reflective systems on the project, the precast concrete posts, large-format single-sided absorptive Durisol panels, and custom retaining panels kept production efficient and cost effective.

The walls also required a custom brick pattern on both sides of the wall, as well as custom icon panels spaced along the wall. The icon or “accent” panels had a special aesthetic treatment using 8×8” stones to create a rectangular border.

This project will set a template and quality standard for future MDOT absorptive projects. When finished, all the walls will have an attractive multi-tone brick pattern on both the absorptive roadway side and reflective residential side as pictured.

Project Details


Michigan DOT


Walsh/Toebe JV



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