SCH Number 2024101113

Project Info

Title

Mountain Road 112 (M112) over Deer Creek Bridge Replacement Project

Description

The proposed Project aims to replace the 1956 bridge over Deer Creek that was damaged and failed due to catastrophic floodwater flows in March of 2023. In response, a temporary one-lane bridge was installed in 2023 on Mountain Road 112 {M112) over Deer Creek. The temporary single span bridge was built approximately 75 feet upstream from the former bridge to provide temporary access across Deer Creek until a permanent structure can be constructed. The Project qualifies to receive emergency funding from FEMA. The proposed replacement bridge would be a permanent structure, approximately 420-foot long by 36-foot wide, multi-span cast-in-­place post tensioned concrete slab bridge. The creek banks would be stabilized with riprap, and the new replacement bridge would be built in the same location as the original bridge. Construction is anticipated to start in the spring of 2026 and should be completed in approximately 8 months. During this time, the M 112 would remain open since the temporary bridge is located upstream of the proposed replacement bridge. Thus, this Project would enhance public safety, provide emergency access and security, and improve transportation infrastructure for the general population in the region, accommodating both general traffic and large agricultural equipment, vital to the area. Prior to construction, geotechnical investigations would be performed to determine existing conditions and to test the suitability of the ground to support replacement piers and abutments of the new replacement bridge structure. Geotechnical investigation would include six (6) borings, one boring at each proposed pier and abutment location. No permanent impacts from the geotechnical investigation are anticipated to occur. Borings would require less than four (4) square feet of soil disturbance from the six, 6-inch, diameter bore holes. Upon completion, borings would be backfilled with neat cement grout, and native soils, and in accordance with County requirements.

2 documents in project