Copyright 2019: New Hampshire Department of Transportation, 7 Hazen Drive, Concord, NH 

Double Batter Pile Design

This unique design feature called for steel piles to be placed at opposing angles. The opposing angles provide increased lateral stability to the structure.  Although double batter pile design is commonly used in bridge design, these piles are exposed all the way up to the pile cap as opposed to being ended below ground level with concrete pier on top. 

To view the 1954 design plans for both bridges as well as additional historic information go to the Historic Documentation page of this website by clicking on the link below.

Historic Documentation

 

View of the steel piles placed at opposing angles.  This specific design is a "double batter pile design" system.