Specifications include, but are not limited to: These projects may use the design-build procurement. The consultant will produce an environmental document as part of this process. Survey of all existing guardrail will need to be completed as early as possible in 2024 to support design of new guardrail with slope intercepts for the environmental process. 1166-09-32: Perpetuation project of approximately 6.8 miles of USH 51 and 1 mile of STH 29 east and west of USH 51 in the City of Wausau, and Villages of Rib Mountain and Rothschild, Marathon County. Repair concrete joints on the USH 51/STH 29 system and service ramps, and between ramp intersections. Work also includes 2-inch mill and overlay of asphalt shoulders and replacing all guardrail. Traffic staging will keep at least two lanes open between the STH 29 east and west interchanges. Ramp closures and/or detours will be needed to perform concrete joint repairs. 1170-01-36: Bridge preventive maintenance on seven bridges located on USH 51 and STH 29 in the City of Wausau, Marathon County. Remove the existing polymer overlays and installing new polymer overlays on B-37-346, 347, 349, 352, 364, and 370. 1170-01-37: Bridge preventive maintenance on seven bridges located on USH 51 and STH 29 in the City of Wausau, Marathon County. Remove the existing polymer overlays and installing new polymer overlays on B-37-153, 154, 348, 354, 365, 366, and 371. A structural engineer is required for SSRs.