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US 280 over CAHABA RIVER

Jefferson County, Alabama

Map 

Coordinates:
+33.43200, -86.71333
33°25'55" N, 86°42'48" W
Source: National Bridge Inventory (2000, 2010 editions)
Information not verified. Use at your own risk.

Facts 

Name:US 280 over CAHABA RIVER
Structure number:015300
Location:JEFF/SHELBY CO. LN.
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:80.1 ft. [24.4 m]
Total length:407.2 ft. [124.1 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:44.0 ft. [13.4 m]
Owner:State Highway Agency [01]
Year built:1962
Year reconstructed:1991
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

2010 Inspection 

Status:Open, no restriction [A]
Average daily traffic:41,470 [as of 2008]
Truck traffic:6% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Operating rating:47.5 tons [43.2 metric tons]
Inventory rating:28.5 tons [25.9 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:68.2
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$5,993,000

2000 Inspection 

Status:Open, no restriction [A]
Average daily traffic:34,945 [as of 1998]
Truck traffic:6% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Scour condition:Scour calculation/evaluation has not been made. [6]
Operating rating:44.9 tons [40.8 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Sufficiency rating:76.9

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