InTrans / Aug 14, 2018

Ultimate Load Behavior of Full-Scale Highway Truss Bridges: Phase II, Service Load and Supplementary Tests

As a result of the construction of the Saylorville Dam and Reservoir on the Des Moines River, six highway bridges crossing the river were scheduled for removal. One of these,
an old pin-connected, high-truss, single-lane bridge, was selected for a comprehensive testing program which included ultimate load tests, service load tests, and a supplementary
test program. A second bridge was used for a limited service load test program.

The results of the research are detailed in two interim reports. The first interim report outlines the ultimate load tests and the second interim report details the results of the
service load and supplementary test program.