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National Covered Bridges Recording Project

Measured drawing of four covered bridge trusses

Since 2002, the Historic American Engineering Record (HAER) and the Federal Highway Administration (FHWA)'s Office of Infrastructure Research and Development have maintained a joint research and technology program for historic covered bridges. As a result of cooperative research under the FHWA's National Historic Covered Bridge Preservation (NHCBP) Program, HAER has:

The work under this initiative continues with additional engineering studies and NHL nominations, educational models, and a publication on guidelines for the rehabilition of covered bridges.


This work has been carried out under the leadership of Christopher H. Marston, HAER Project Leader; Justine Christianson, HAER Historian; and Richard O'Connor, Chief, Heritage Documentation Programs. For additional information, please contact Christopher H. Marston at or 202-354-2162.