For information on timber bridge design and construction, contact one of the following organizations:

1. Forest Products Laboratory’s Timber Bridge Design Manual. (608) 231-9200. For more information, visit http://www.fpl.fs.fed.us
2. American Institute of Timber Construction’s revised Timber Bridge brochure. Visit their website at http://www.aitc-glulam.org
3. National Wood in Transportation Information Center
   USDA Forest Service
   180 Canfield Street
   Morgantown, WV 26505
   Phone: (304) 285-1591
   Fax: (304) 285-1596
   Email: werc@fs.fed.us
   Website: http://www.na.fs.fed.us/werc/