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Blake Road Bridge

Photos 

Photo Source: Indiana SHAARD, Taken July 2007

Enlarge

BH Photo #202143

Map 

Description 

Indiana SHAARD Statement of Significance: The designer of this bridge planned an unusually long and decorated through-girder structure. 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 adn T-beams could obstruct the watercourse more than would girders which do some of their carrying above the level of the roadway.

The girders of this 44' structure are about 5' high and 18" wide. They span 41' and are decorated with raised endposts and coping. Transverse floor beams carry a concrete deck and a 16' asphalt roadway. The girders rest upon concrete abutments which are in turn flanked by wingwalls.

Facts 

Overview
Concrete pony/through girder bridge over Lewis Creek on Blake Road
Location
Jefferson County, Indiana
Status
Open to traffic
Future prospects
Slated for demolition and replacement.
History
Built 1925
Design
Concrete through girder.
Dimensions
Length of largest span: 40.0 ft.
Total length: 44.0 ft.
Deck width: 15.7 ft.
Also called
Jefferson County Bridge #39
Lewis Creek Bridge
Approximate latitude, longitude
+38.78056, -85.64000   (decimal degrees)
38°46'50" N, 85°38'24" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/618130/4293303 (zone/easting/northing)
Quadrangle map:
Deputy
Inventory numbers
INNBI 3900026 (Indiana bridge number on the National Bridge Inventory)
BH 48961 (Bridgehunter.com ID)
Inspection (as of 12/2010)
Deck condition rating: Serious (3 out of 9)
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Serious (3 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 22.1 (out of 100)
Average daily traffic (as of 2010)
300

Categories 

Built 1925 (1,131)
Built during 1920s (8,758)
Concrete girder (839)
Doomed (1,028)
Girder (7,932)
Indiana (4,198)
Jefferson County, Indiana (39)
Open (36,537)
Owned by county (18,847)
Span length 25-50 feet (13,559)
Structurally deficient (18,415)
Through girder (2,937)
Total length 25-50 feet (9,841)

Update Log 

  • June 21, 2011: Added by Nathan Holth