CR-850 North Bridge

Information and Findings From DHPA Historic Bridge Survey

Statement of Significance

From a structural perspective, the designer of this bridge produced rather standard through-girder spans. They are, though, unusually well decorated.

Architectural Description

Because of its greater rigidity, the reinforced concrete through girder can be extended beyond the T-beam's ordinary limit of span (40' - 60' long). In a through structure, a pair of girders - large beams that receive their loads from other beams - flank the roadway and usually carry the deck above floor beams (which run from girder to girder and whose reinforcing rods are interlocked with those of the girders). The through girder is preferred where the roadway is not far above stream level and T-beams could obstruct the watercourse more than would girders which do some of their carrying above the level of the road.

The girders of this two-span, 67' structure are about 4'3" high and 14" wide. Each set spans 33'6" and are decorated with a pair of panels and concrete coping. Transverse floor beams carry a concrete deck and a 16' asphalt roadway. The girders rest upon a concrete pier, abutments, and flared wingwalls.

Bridge Considered Historic By Survey: Yes