DERBY DRIVE over ALTON ROAD

Map 

Facts 

Name:	DERBY DRIVE over ALTON ROAD
Structure number:	018288
Location:	DERBY DR & ALTON RD @I459
Purpose:	Carries highway over railroad
Route classification:	Local (Urban) [19]
Length of largest span:	60.0 ft. [18.3 m]
Total length:	142.1 ft. [43.3 m]
Roadway width between curbs:	84.0 ft. [25.6 m]
Deck width edge-to-edge:	86.6 ft. [26.4 m]
Vertical clearance below bridge:	18.0 ft. [5.5 m]
Skew angle:	5°
Owner:	City or Municipal Highway Agency [04]
Year built:	1993
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]
Wearing surface:	Monolithic Concrete (concurrently placed with structural deck) [1]

2010 Inspection 

Status:	Open, no restriction [A]
Average daily traffic:	2,000 [as of 2004]
Truck traffic:	5% of total traffic
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:	47.9 tons [43.5 metric tons]
Inventory rating:	36.0 tons [32.7 metric tons]
Sufficiency rating:	98.5
Estimated cost of work:	$4,724,000

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