This week the USDA Northern Region Forest Service and Morrison-Maierle, Inc. received the Association of Conservation Engineers (ACE) Carl V. Anderson Conservation Project Award of Merit for the St. Paul Trail Bridge project during the 2012 ACE Conference in Chesterton, Indiana.
Working closely with the Forest Service, Morrison-Maierle developed a modified design that incorporates a post-tensioning system into the glue-laminated stringers. The post-tensioning system allows the stringers to withstand the significant snow loadings and provides a long-term solution to remote trail bridge construction restrictions. The public may now safely enjoy the benefits of the Cabinet Mountains Wilderness trail system and can most certainly look forward to similar applications of this hybrid, post-tensioned packable trail bridge design.
Awarded annually, the Carl V. Anderson Conservation Project Awards recognize ACE members for outstanding projects in conservation engineering. The purpose of this design awards competition is to give recognition to those members and/or their agencies whose work, as judged by their peers and associates, best exhibits the goals and objectives of the ACE.
View the presentation given by John Kattell, PE, Regional Bridge Engineer USDA FS Northern Region and Michael Brennan, PE, Structural Engineer Morrison-Maierle, at the conference by clicking on the following link: http://www.conservationengineers.org/conferences/2012presentations/Monday_St_Paul_Trail_Bridge.pdf