Attachment B Plans~10.pdf

This document is a set of engineering design plans for an Emergency Landslide Repair Project by the Oregon Department of Transportation (ODOT), specifically located on the North Umpqua Highway (OR138E) in Douglas County. The project focuses on repairing a landslide at Milepost 49.1, with a total project length of approximately 0.05 miles. The design plans are dated September 2025 and include detailed engineering specifications for roadway reconstruction, drainage improvements, and traffic management during construction.

The project documents outline comprehensive technical details including typical road sections, subgrade stabilization, riprap drainage ditch configurations, and staged traffic control plans. The design incorporates elements such as stone embankment materials, geotextile layers, erosion control measures, and bicycle push-button signal installations. The project will involve significant earthwork, including excavation, slope stabilization, and road reconstruction, with careful consideration of the surrounding National Forest Service lands. The contract renewal date is noted as 06-30-2026, suggesting an anticipated project duration of approximately one year.