Evaluation of the Performance of a Press-Lam Timber Bridge: Interim Report, No. 2, Bridge Performance and Load Test After One Year

Report No: 78-R57

Published in 1978

About the report:

The report describes the installation of the wearing surface, the results of the second load test, and the status of the collection of data on the dimensional changes and moisture content of the press-lam members and the number and types of vehicles using the bridge. The results of the load test suggest that the AASHTO load distribution is conservative and that the steel dowels adequately provide for load transfer between panels. With the exception of the rails and wheel guards, which are exhibiting a high moisture content and showing signs of delamination, the bridge is structurally sound and in excellent condition after one year of service.

Disclaimer Statement:The contents of this report reflect the views of the author(s), who is responsible for the facts and the accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the Virginia Department of Transportation, the Commonwealth Transportation Board, or the Federal Highway Administration. This report does not constitute a standard, specification, or regulation. Any inclusion of manufacturer names, trade names, or trademarks is for identification purposes only and is not to be considered an endorsement.


  • Michael M. Sprinkel, P.E.

Last updated: January 27, 2024

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