Substructure elements are designed to carry all the loads specified in AASHTO LRFD Bridge Design Specifications and the TxDOT Bridge Design Manual-LRFD. Selecting the controlling load conditions requires good judgment and coordination with the bridge engineer.

In accordance with AASHTO LRFD Bridge Design Specifications 3.6.2, neglect the dynamic load allowance on foundation components completely buried.

Evaluate structural resistance in accordance with the TxDOT Bridge Design Manual-LRFD. Evaluate geotechnical resistance according to criteria in this chapter.