Field performance of timber bridges. 14, Dean, Hibbsville, and Decatur stress-laminated deck bridges [report]

P. D. Hilbrich Lee, M. A. Ritter, S. Golston, K. Hinds
1984 unpublished
The Dean, Hibbsville, and Decatur bridges were constructed in southern Iowa during 1994. Each bridge is a simple-span, stress-laminated deck superstructure, approximately 7.3 m (24 ft) long, constructed from eastern cottonwood lumber. The performance of each bridge was monitored for approximately 2 years, beginning shortly after installation. Monitoring involved collecting and evaluating data pertaining to the moisture content and vertical creep of the wood decks, the force level of the
more » ... evel of the stressing bars, and the behavior of the bridges under static load conditions. In addition, comprehensive visual inspections were conducted to assess the overall condition of the structure. Based on field evaluations, the bridges are performing well with minor serviceability deficiencies.
doi:10.2737/fpl-rp-564 fatcat:ea3blgktwfc7tf27zica5ck2dy