The Walsh/Myers Joint Venture team is wrapping up their rehabilitation work on the Sac Gap Combined Project on Interstate 5 in Siskiyou County from Dunsmuir to Black Butte Overhead in Weed. Begun on June 12, 2023, the project scope encompassed pavement rehabilitation and a deck replacement, and is a valued at $140,630,444.

New Jointed Plain Concrete Pavement (JPCP) is placed under the Union Pacific Railroad bridge by the Walsh/Myers JV crew in the final phase of the Sac Gap Combined Project. Photo by Walsh Project Manager Gordon Stout.

 

Photos by Parker Rasmussen, Gomaco

Recent photos by Parker Rasmussen of GOMACO show the Walsh GOMACO paving train in action, which is comprised of a four-track GHP-2800 with Leica 3D guidance, a frame-mounted tie-bar inserter, and a side-bar inserter. A PS-2600 is placing concrete on the grade in front of the paver.

The Sac Gap Combined Project restored the roadway to a state of good repair that will require less maintenance over time. Due to trucks using chains during the winter months, sections of the roadway incurred significant wear. The project repaired that damage and has increased the drivability for motorists. The new concrete pavement will also decrease the need for costly repairs over time and minimize the exposure of maintenance crews to fast-moving traffic.

The final phase of the project entailed placing 2,100 cubic yards of new Jointed Plain Concrete Pavement (JPCP) under the Union Pacific Railroad overcrossing near the North Mt. Shasta Boulevard overcrossing. Over seasons one and two in 2023 and 2024, the JV team completed placement of 112,000 cubic yards of new JPCP, reconstructing the entire northbound roadway, along with selected interchange ramps. Bridge rails and drainage systems were upgraded, and overhead sign structures and Intelligent Transportation Systems (ITS) elements were also installed. The project is now substantially complete, with just a few subcontractor items wrapping up in October.

Big thanks and a tip of the hard hat to Walsh Project Manager Gordon Stout for all of his help with this article.