Watch a new interchange emerge from the Granite Hills

Posted in: Bridges, Environmental, Highways

STH 29 & CTH O InterchangeThe recently completed STH 29 interchange at CTH O is the manifestation of years of planning and design initiated to provide a safer roadway for travelers west of Wausau, Wisconsin.

This safety project included separating east and west bound traffic with a safety barrier, eliminating at grade intersections and constructing a new interchange to provide connectivity to the local road network. The new interchange includes several key environmental improvements such as structures that were designed to enhance passage of migrating fish through the interchange as well as a wetland restoration and banking site that mitigates lost wetlands while improving existing wetland habitat to promote the growth of native vegetation while reducing invasive species.

To construct the interchange and subsequent local roads, approximately 380,000 cubic yards of granite was removed from the adjacent hill side. To remove this volume of granite, contractors performed daily blasting operations, followed by continual excavation of the blasted rock and placement for the new interchange and roadway. The following photos show the interchange progress from construction to the final product.

This aesthetically pleasing interchange fits well with its surroundings, emerging from the granite hillside who’s products provided the building material to construct the interchange.

View the photos here


John Rathke, PE, SE

About the Author

For John Rathke, P.E., S.E., it is more than managing more than 30 highway and bridge projects each year. It is about connecting with clients and listening to what is important. A leader in transportation engineering, John says that for him, the greatest reward is seeing the constructed product and sharing the pride and accomplishment with his clients, team and the public. According to John, “It’s all about teamwork.”

Read more posts by John Rathke, PE, SE

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