I 59/20 over L & N RR

Map 

Facts 

Name:	I 59/20 over L & N RR
Structure number:	011079
Location:	.2 MI NO AL 79
Purpose:	Carries highway over railroad
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	80.1 ft. [24.4 m]
Total length:	203.1 ft. [61.9 m]
Roadway width between curbs:	80.1 ft. [24.4 m]
Deck width edge-to-edge:	81.4 ft. [24.8 m]
Vertical clearance below bridge:	23.3 ft. [7.1 m]
Skew angle:	12°
Owner:	State Highway Agency [01]
Year built:	1974
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Design load:	MS 18 / HS 20 [5]
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:	71,710 [as of 2008]
Truck traffic:	11% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	54.9 tons [49.9 metric tons]
Inventory rating:	32.8 tons [29.8 metric tons]
Sufficiency rating:	87.7
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$6,053,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	67,530 [as of 1998]
Truck traffic:	9% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	47.9 tons [43.5 metric tons]
Inventory rating:	36.0 tons [32.7 metric tons]
Sufficiency rating:	90.6

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