RAMP D TO I59 over RAMP B TO I 20

Map 

Facts 

Name:	RAMP D TO I59 over RAMP B TO I 20
Structure number:	011059
Old structure number:	00000I203700020 (from 1992 edition)
Location:	I20 & I59 INTR
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	75.1 ft. [22.9 m]
Total length:	204.4 ft. [62.3 m]
Roadway width between curbs:	29.9 ft. [9.1 m]
Deck width edge-to-edge:	31.5 ft. [9.6 m]
Vertical clearance below bridge:	16.4 ft. [5.0 m]
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 [3]
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:	13,978 [as of 2008]
Truck traffic:	11% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Good [7 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	83.3 tons [75.7 metric tons]
Inventory rating:	49.8 tons [45.3 metric tons]
Sufficiency rating:	96.7
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$2,355,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	1,700 [as of 1996]
Truck traffic:	12% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Very Good [8 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:	96.8

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	1,200 [as of 1988]
Truck traffic:	12% 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:	44.6 tons [40.5 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	96.8

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