I0010 over LAKE PONTCHARTRAIN

Map 

Facts 

Name:	I0010 over LAKE PONTCHARTRAIN
Structure number:	023604501700002
Location:	.01 MI EAST OF US 11
Purpose:	Carries highway over waterway
Route classification:	Principal Arterial - Interstate (Rural) [01]
Length of largest span:	200.1 ft. [61.0 m]
Total length:	28546.3 ft. [8700.5 m]
Roadway width between curbs:	40.0 ft. [12.2 m]
Deck width edge-to-edge:	45.6 ft. [13.9 m]
Vertical clearance below bridge:	63.0 ft. [19.2 m]
Owner:	State Highway Agency [01]
Year built:	1963
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]

2010 Inspection 

Status:	Posted for load [P]
Average daily traffic:	28,800 [as of 2009]
Truck traffic:	7% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Critical [2 out of 9]
Substructure condition:	Critical [2 out of 9]
Channel protection:	Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	89.1 tons [81.0 metric tons]
Inventory rating:	53.5 tons [48.6 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	33.0
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:	$111,325,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	28,254 [as of 1997]
Truck traffic:	7% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Fair [5 out of 9]
Substructure condition:	Good [7 out of 9]
Channel protection:	Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	47.5 tons [43.2 metric tons]
Inventory rating:	33.7 tons [30.6 metric tons]
Sufficiency rating:	80.2
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	23,579 [as of 1991]
Truck traffic:	7% of total traffic
Deck condition:	Fair [5 out of 9]
Superstructure condition:	Fair [5 out of 9]
Substructure condition:	Good [7 out of 9]
Channel protection:	Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:	36.6 tons [33.3 metric tons]
Inventory rating:	21.8 tons [19.8 metric tons]
Sufficiency rating:	66.4

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