US0090 over MISSISSIPPI RIVER

Map 

Facts 

Name:	US0090 over MISSISSIPPI RIVER
Structure number:	022600060100001
Location:	.01 MI SOUTH OF LA 48
Purpose:	Carries highway over highway, waterway, and railroad
Route classification:	Other Principal Arterial (Urban) [14]
Length of largest span:	790.1 ft. [240.8 m]
Total length:	9163.5 ft. [2792.9 m]
Roadway width between curbs:	36.1 ft. [11.0 m]
Deck width edge-to-edge:	44.9 ft. [13.7 m]
Vertical clearance below bridge:	149.9 ft. [45.7 m]
Owner:	State Highway Agency [01]
Year built:	1936
Historic significance:	Bridge is not eligible for the National Register of Historic Places [5]
Design load:	M 13.5 / H 15 [2]
Number of main spans:	3
Main spans material:	Steel continuous [4]
Main spans design:	Truss - Thru [10]
Deck type:	Concrete Cast-in-Place [1]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	48,000 [as of 2009]
Truck traffic:	7% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 out of 9]
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:	Countermeasures have been installed to mitigate an existing problem with scour. [7]
Operating rating:	33.7 tons [30.6 metric tons]
Inventory rating:	15.8 tons [14.4 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	33.2
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$35,734,000

2000 Inspection 

Average daily traffic:	12,884 [as of 1997]
Truck traffic:	9% of total traffic
Evaluation:	Not applicable [N]

1992 Inspection 

Status:	Posted for load [P]
Average daily traffic:	47,881 [as of 1988]
Truck traffic:	7% of total traffic
Deck condition:	Poor [4 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 out of 9]
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:	Scour calculation/evaluation has not been made. [6]
Operating rating:	33.7 tons [30.6 metric tons]
Inventory rating:	15.8 tons [14.4 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	32.2
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$35,734,000

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