I0012 over I-12 OVER LA 3002

Map 

Facts 

Name:	I0012 over I-12 OVER LA 3002
Structure number:	623204540201902
Location:	I0012
Purpose:	Carries highway overpass over highway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	86.9 ft. [26.5 m]
Total length:	199.2 ft. [60.7 m]
Roadway width between curbs:	40.0 ft. [12.2 m]
Deck width edge-to-edge:	43.6 ft. [13.3 m]
Vertical clearance below bridge:	15.1 ft. [4.6 m]
Skew angle:	16°
Owner:	State Highway Agency [01]
Year built:	1970
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]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	52,740 [as of 2009]
Truck traffic:	19% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Very Good [8 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	69.3 tons [63.0 metric tons]
Inventory rating:	41.6 tons [37.8 metric tons]
Sufficiency rating:	89.9
Recommended work:	Other structural work, including hydraulic replacements. [38]

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	30,114 [as of 1997]
Truck traffic:	19% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Good [7 out of 9]
Substructure condition:	Very Good [8 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]
Operating rating:	68.3 tons [62.1 metric tons]
Inventory rating:	40.6 tons [36.9 metric tons]
Sufficiency rating:	93.1
Recommended work:	Other structural work, including hydraulic replacements. [38]

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	32,533 [as of 1991]
Truck traffic:	19% of total traffic
Deck condition:	Satisfactory [6 out of 9]
Superstructure condition:	Very Good [8 out of 9]
Substructure condition:	Very Good [8 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]
Operating rating:	68.3 tons [62.1 metric tons]
Inventory rating:	40.6 tons [36.9 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	91.4
Recommended work:	Other structural work, including hydraulic replacements. [38]

Comments