I40 RMP over I40WB-RMP/BLACKSTOCK-RR

Map 

Facts 

Name:	I40 RMP over I40WB-RMP/BLACKSTOCK-RR
Structure number:	47I00400057
Location:	AT I-275 JCT.
Purpose:	Carries highway over highway and railroad
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	120.1 ft. [36.6 m]
Total length:	408.8 ft. [124.6 m]
Roadway width between curbs:	29.9 ft. [9.1 m]
Deck width edge-to-edge:	32.2 ft. [9.8 m]
Vertical clearance below bridge:	15.7 ft. [4.8 m]
Owner:	State Highway Agency [01]
Year built:	1982
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:	6,490 [as of 2010]
Truck traffic:	10% of total traffic
Deck condition:	Satisfactory [6 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:	48.5 tons [44.1 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	88.9

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	98,350 [as of 1999]
Truck traffic:	10% of total traffic
Deck condition:	Satisfactory [6 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:	48.5 tons [44.1 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	85.0

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	68,300 [as of 1991]
Truck traffic:	6% of total traffic
Deck condition:	Good [7 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:	48.5 tons [44.1 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	81.0
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$921,000

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