Evaluation of existing wood structures

Where can I find information on evaluation, maintenance and repair of existing structures?

Wood and Timber Condition Assessment Manual
by Robert J. Ross, Brian K. Brashaw, Xiping Wang, Robert H. White, and Roy F. Pellerin.
Available at http://www.forestprod.org/shop/index.html
Phone: (608) 231-1361 ext. 202

Here's contact information for the lead author:

Dr. Robert J. Ross
E-mail: rjross@fs.fed.us
Phone: (608) 231-9210
Website: http://www.fpl.fs.fed.us/rwu4719/index.html

Other resources:

Structural Condition Assessment of In-Service Wood, Forest Products Journal, June 2006, Vol.56, No.6: http://www.forestprod.org/june06.pdf

Evaluation, Maintenance and Upgrading of Wood Structures: A Guide and Commentary. Published by ASCE (Committee on Wood), 1982. Available at https://www.asce.org/bookstore/book.cfm?book=3003
ISBN # 0872623173

Evaluation and Upgrading of Wood Structures: Case Studies. Published by: ASCE(Proceedings of a session at Structures Congress, 1986). Edited by: Vijay K. A. Gopu. Available at https://www.asce.org/bookstore/book.cfm?book=2984
ISBN # 0872625508

West Coast Lumber Inspection Bureau (WCLIB) will grade existing timbers. Here's contact information:

WEST COAST LUMBER INSPECTION BUREAU
PO Box 23145
Portland, Oregon 97281-3145
503-639-0651
Fax: 503-684-8928
http://www.wclib.org/

The USDA Forest Products Lab also provides a species identification service. Here's a link for more information: http://www.fpl.fs.fed.us/documnts/techline/wood-identification--90-years-of-service.pdf