COLUMBIA PARKWAY over IR471,RAMP,EGG,CUL

Map 

Facts 

Name:	COLUMBIA PARKWAY over IR471,RAMP,EGG,CUL
Structure number:	3103390
Location:	N OF I471 & US50 INT
Purpose:	Carries highway over highway
Route classification:	Other Principal Arterial (Urban) [14]
Length of largest span:	170.0 ft. [51.8 m]
Total length:	1659.2 ft. [505.7 m]
Roadway width between curbs:	56.1 ft. [17.1 m]
Deck width edge-to-edge:	71.9 ft. [21.9 m]
Vertical clearance below bridge:	24.9 ft. [7.6 m]
Owner:	State Highway Agency [01]
Year built:	1938
Year reconstructed:	1997
Historic significance:	Bridge is eligible for the National Register of Historic Places [2]
Design load:	MS 18+Mod / HS 20+Mod [6]
Number of main spans:	7
Main spans material:	Steel [3]
Main spans design:	Truss - Deck [09]
Deck type:	Concrete Cast-in-Place [1]
Wearing surface:	Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	56,580 [as of 2005]
Truck traffic:	3% of total traffic
Deck condition:	Good [7 out of 9]
Superstructure condition:	Satisfactory [6 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	32.7 tons [29.7 metric tons]
Inventory rating:	23.8 tons [21.6 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	67.5

2000 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	100 [as of 1996]
Deck condition:	Very Good [8 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:	32.7 tons [29.7 metric tons]
Inventory rating:	23.8 tons [21.6 metric tons]
Evaluation:	Functionally obsolete [2]
Sufficiency rating:	82.4
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$2,750,000

1992 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	100 [as of 1988]
Deck condition:	Serious [3 out of 9]
Superstructure condition:	Fair [5 out of 9]
Substructure condition:	Satisfactory [6 out of 9]
Scour condition:	Bridge not over waterway. [N]
Operating rating:	39.6 tons [36.0 metric tons]
Inventory rating:	23.8 tons [21.6 metric tons]
Evaluation:	Structurally deficient [1]
Sufficiency rating:	65.4
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:	$2,750,000

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