W580 ON-RAMP over ROUTE 580

Map 

Facts 

Name:	W580 ON-RAMP over ROUTE 580
Structure number:	33 0288
Location:	04-ALA-580-44.28-OAK
Purpose:	Carries highway overpass (third level) over highway
Route classification:	Principal Arterial - Interstate (Urban) [11]
Length of largest span:	121.1 ft. [36.9 m]
Total length:	430.1 ft. [131.1 m]
Roadway width between curbs:	135.8 ft. [41.4 m]
Deck width edge-to-edge:	140.4 ft. [42.8 m]
Vertical clearance above deck:	14.1 ft. [4.3 m]
Vertical clearance below bridge:	14.8 ft. [4.5 m]
Skew angle:	15°
Owner:	State Highway Agency [01]
Year built:	1961
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:	4
Main spans material:	Concrete continuous [2]
Main spans design:	Box beam or girders - Multiple [05]
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:	205,000 [as of 1998]
Truck traffic:	1% of total traffic
Deck condition:	Satisfactory [6 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:	85.8 tons [78.0 metric tons]
Inventory rating:	35.9 tons [32.6 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	74.0
Recommended work:	Bridge deck replacement with only incidental widening. [37]
Estimated cost of work:	$9,441,000

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	192,500 [as of 1997]
Truck traffic:	1% of total traffic
Deck condition:	Imminent Failure [1 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:	85.8 tons [78.0 metric tons]
Inventory rating:	35.9 tons [32.6 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	70.0
Recommended work:	Bridge deck replacement with only incidental widening. [37]
Estimated cost of work:	$6,749,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	207,100 [as of 1990]
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:	85.1 tons [77.4 metric tons]
Inventory rating:	35.6 tons [32.4 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	75.0
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$4,083,000

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