![]() ![]() ![]() All information should be independently reviewed and verified for accuracy. Non-Forest Service entities are welcome to use these trail bridge plans, but must take full responsibility for their use.All data, including all measurements and calculations of area, is obtained from various sources, is approximate, and has not been, and will not be, verified by broker or MLS. On Forest Service projects, these plans may not be modified without Regional Engineer approval (except for populating the Structure Table on page 1 for each bridge type). Forest Service Trail Bridge design requirements are found in Forest Service Directives Forest Service Manual (FSM) 7723 and Forest Service Handbook (FSH) 7709.56b, Chapter 80 and in Technology and Development Center’s publication “ Locating Your Trail Bridge for Longevity”. Proper bridge siting and design includes many other aspects such as siting, hydrology, hydraulics, foundation, etc. The designer should download all associated plans for the bridge type to ensure they have a complete trail bridge package.Ī qualified engineer with trail bridge design experience must approve the use of these Standard Trail Bridge plans for each trail bridge project. The plans are not meant to be used as individual drawings. The standard trail bridge plans are for typical superstructure designs and abutment details commonly used. Standard trail bridge plans for timber and prefabricated steel bridges have been approved by Forest Service Washington Office Director of Engineering and Washington Office Director of Recreation for use on National Forest System lands. ![]() This section includes standard trail bridge plans for timber and prefabricated steel bridges. Typical Hardened Surfacing Sections with Retainersīottomless Arch Culvert with Rock Headwall The Forest Service Standard Trail Plans are available as compiled sets of PDFs or as individual drawings. If the Standard Trail Drawings are modified, the title block must be changed to “Special Project Specifications ” to reflect the change. The Standard Trail Drawings are to be used as-is, with trail and site-specific dimensional needs additionally recorded on each sheet.In AutoCAD, when using a postscript printer, this STD.ctb file should be used so line weights print as displayed ( STD.zip). The Standard Trail Plans are provided in United States customary units and are available below as PDFs (portable document files) and AutoCAD files.The Standard Trail Plans are comprised of Standard Trail Drawings that show the location, type, dimensions, and details of trail work. Pay Items are specific items of work for which a unit and price are provided in a contract. Specifications are written requirements for performing work. The Standard Trail Plans and Specifications include specifications, pay items, and plans The Standard Trail Plans and Specifications were developed to assist with trail design, construction, maintenance, inventory, condition assessment, and the assembly of trail construction plan packages. These Standard Trail Plans and Specifications supersede the 1996 USDA Forest Service, Standard Drawings and Specifications for Construction and Maintenance of Trails. The Forest Service’s National Technology and Development Program (T&D) developed them in conjunction with the agency’s National Trails Program, with funding and support from the Federal Highway Administration, Recreational Trails Program. The Standard Trail Plans and Specifications reflect current Forest Service trail management efforts and the agency’s Trails Data Dictionary for constructed features and tasks. ![]() These plans and specifications also are available for other Federal, State, and local agencies, communities, trail partners, volunteers, and entities. The USDA Forest Service Standard Trail Plans and Specifications are for the design, construction, and maintenance of National Forest System trails and trail bridges. ![]()
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