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Madison, WI 53726-2398
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Title: Evaluation of Wood Species and Preservatives for Use in Wisconsin Highway Sign Posts

Source: USDA Forest Service, Forest Products Laboratory, General Technical Report, FPL-GTR-231, 2014; 51 p.

Author(s)Lebow, Stan T.; Ross, Robert J.; Zelinka, Samuel L.

Publication Year: 2014  View PDF »

Category: General Technical Reports
Associated Research Project(s):   FPL-4714-MB  FPL-4723-3B

Abstract: The Wisconsin Department of Transportation (WisDOT) uses wooden posts to support many types of signs along state highways. WisDOT currently uses red pine or Southern Pine posts treated with chromated copper arsenate (CCA) and has generally experienced satisfactory performance and service life. However, there are some areas of concern, as well as potential opportunities for diversifying the wood species and preservatives used. Warp is sometimes a problem with the current pine posts, and increased use of locally sourced wood species for the sign posts could decrease transportation costs and potentially benefit Wisconsin industries. Although CCA is a highly effective preservative, it may not be the optimum treatment for alternative wood species. This study reviewed the characteristics of alternative wood species and wood preservatives and evaluated their potential for use in Wisconsin highway sign posts.

Keywords: wood preservatives; wood species; sign posts; highway; Wisconsin

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 1,795 kb(s)

Date posted: 08/04/2014

This publication is also viewable on Treesearch:  view
RITS Product ID: 68129
Current FPL Scientists associated with this product (listed alphabetically)
Lebow, Stan T.
Research Forest Products Technologist
Ross, Robert J.
Supervisory Research Gen. Engineer
Zelinka, Samuel L.
Materials Research Engineer

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