Historic Bridges of the U.S.

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Overview: Through truss bridge over Castor River on MO 51 at Zalma
Location: Bollinger County, Missouri
Status: Open to one-lane traffic on a paved road
History: Built 1929-30, replacing a 1900 span that was then moved to Gipsy
Builder: - W.G. Watt Construction Co.
Design: Riveted, 5-panel Pratt through truss
Dimensions: Length of largest span: 100.4 ft.
Total length: 398.8 ft.
Deck width: 20.0 ft.
Vertical clearance above deck: 16.7 ft.
Approximate latitude, longitude: +37.14667, -90.07478 (decimal degrees)
37°08'48" N, 90°04'29" W (degrees°minutes'seconds")
Approximate UTM coordinates: 15/759804/4115149 (zone/easting/northing)
Land survey: T. 29 N., R. 9 E., Sec. 29
USGS topographic map: Zalma
Inventory numbers: MONBI 5252 (Missouri bridge number on the National Bridge Inventory)
BH 20896 (Bridgehunter.com ID)
Inspection (as of 12/2007): Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 42.7 (out of 100)
Average daily traffic (as of 2006): 864