I0310 over S.P. R.R. & LA 631

Map 

Facts 

Name:	I0310 over S.P. R.R. & LA 631
Structure number:	024504503803756
Location:	.5 MI NORTH OF US 90
Purpose:	Carries highway over highway and railroad
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	111.9 ft. [34.1 m]
Total length:	1319.0 ft. [402.0 m]
Roadway width between curbs:	24.9 ft. [7.6 m]
Deck width edge-to-edge:	27.9 ft. [8.5 m]
Vertical clearance below bridge:	23.0 ft. [7.0 m]
Owner:	State Highway Agency [01]
Year built:	1986
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:	17
Main spans material:	Prestressed concrete [5]
Main spans design:	Stringer/Multi-beam or girder [02]
Deck type:	Concrete Cast-in-Place [1]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	3,120 [as of 2009]
Truck traffic:	7% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Poor [4 out of 9]
Substructure condition:	Very Good [8 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	63.4 tons [57.6 metric tons]
Inventory rating:	37.6 tons [34.2 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	71.0
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$5,143,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	2,992 [as of 1998]
Truck traffic:	7% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 out of 9]
Operating rating:	64.4 tons [58.5 metric tons]
Inventory rating:	38.6 tons [35.1 metric tons]
Sufficiency rating:	100.0

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	971 [as of 1991]
Truck traffic:	7% of total traffic
Deck condition:	Very Good [8 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 out of 9]
Operating rating:	43.6 tons [39.6 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Sufficiency rating:	100.0

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