3. Loves Falls Deck Repair Project Plans.pdf

This is a technical engineering drawing for bridge repair work on Loves Falls Trail Bridge located on the Pacific Crest Trail in California (Latitude 39.58002, Longitude -120.60799). The original 1977 bridge sustained damage from a fallen tree that compromised the deck structure and railing, necessitating this reconstruction project.

The scope of work includes replacing 15 pieces of damaged timber (2x12 x 8'0"), removing and replacing 11 feet of damaged downstream HSS (hollow structural steel) 6x4 x 3/16" steel stringer and corrupted decking support angle, and reinstalling two HSS steel rail posts. Additional work includes replacing 24 feet of damaged timber for the upstream railing and related structural repairs. Design specifications reference AASHTO LRFD Bridge Design Specifications (9th edition, 2020) and AASHTO LRFD Guide Specification for the Design of Pedestrian Bridges. Construction shall follow Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP-14) with Forest Service Supplemental Specifications. Design loads specify 90 PSF pedestrian live load, 125 PSF snow load, and appropriate earth pressure and seismic considerations. Materials include Douglas Fir-Larch No. 2 or better rough timber and ASTM Grade 36 structural steel with hot-dipped galvanized hardware. The Bill of Materials lists ten items including lump sum mobilization, structural steel, bridge railings, timber, painting, and decking work totaling approximately 26 square feet and 160 linear board feet of materials. The U.S. Department of Agriculture Forest Service is the contracting agency.