I- 55 WB STEVENSON over THROOP ST

Map

Coordinates:
+41.84414, -87.65467
41°50'39" N, 87°39'17" W

Source: National Bridge Inventory. Information not verified; use at your own risk.

Name:	I- 55 WB STEVENSON over THROOP ST
Structure number:	016003100000000
Old structure number:	000016003103706 `(from 1992 edition)`
Location:	0.7 M SW I94
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Interstate (Urban) `[11]`
Length of largest span:	68.9 ft. `[21.0 m]`
Total length:	180.1 ft. `[54.9 m]`
Roadway width between curbs:	68.9 ft. `[21.0 m]`
Deck width edge-to-edge:	72.2 ft. `[22.0 m]`
Skew angle:	3°
Owner:	State Highway Agency `[01]`
Year built:	1963
Year reconstructed:	2000
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18+Mod / HS 20+Mod `[6]`
Number of main spans:	3
Main spans material:	Prestressed concrete continuous `[6]`
Main spans design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`

Good/Fair/Poor Condition:	Good
Status:	Open, no restriction `[A]`
Average daily traffic:	65,400 `[as of 2016]`
Truck traffic:	9% of total traffic
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Very Good `[8 out of 9]`
Substructure condition:	Very Good `[8 out of 9]`
Structural appraisal:	Equal to present desirable criteria `[8]`
Deck geometry appraisal:	Better than present minimum criteria `[7]`
Underclearances appraisal:	Superior to present desirable criteria `[9]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Scour condition:	Bridge not over waterway. `[N]`
Operating rating:	95.2 tons `[86.5 metric tons]`
Inventory rating:	59.2 tons `[53.8 metric tons]`
Sufficiency rating:	98.0

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
December 2016	98.0	Good	Good	Very Good	Very Good	-	65400
January 2015	98.0	Good	Good	Very Good	Very Good	-	77650
January 2013	98.0	Good	Good	Very Good	Very Good	-	79550
February 2011	98.0	Good	Good	Very Good	Very Good	-	84550
March 2009	98.0	Good	Good	Very Good	Very Good	-	85900
March 2007	98.0	Good	Good	Very Good	Very Good	-	81600
May 2005	98.0	Good	Very Good	Very Good	Very Good	-	80300
July 2003	98.0	Good	Very Good	Very Good	Very Good	-	75200
August 2001	98.0	Good	Very Good	Very Good	Very Good	-	67400
January 2001	98.0	Good	Very Good	Very Good	Very Good	-	58700
October 1999	94.0	Poor	Poor	Satisfactory	Satisfactory	SD	72200
October 1997	96.0	Fair	Fair	Satisfactory	Satisfactory	-	69200
March 1996	97.0	Fair	Fair	Good	Satisfactory	-	66900
February 1995	97.0	Fair	Fair	Good	Satisfactory	-	68700
August 1993	97.0	Fair	Fair	Good	Satisfactory	-	62200
October 1992	98.0	Fair	Satisfactory	Good	Satisfactory	-	61350
July 1991	98.0	Fair	Satisfactory	Good	Satisfactory	-	61350

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.

Element	Units	Quantity	1. Good	2. Fair	3. Poor	4. Serious
Superstructure
Prestressed Concrete Girder/Beam	linear ft.	1,780	1,780	0	0	0
Deck
Reinforced Concrete Deck	sq. ft.	13,000	11,270	1,730	0	0
Substructure
Reinforced Concrete Column	each	14	14	0	0	0
Reinforced Concrete Pier Wall	linear ft.	40	40	0	0	0
Reinforced Concrete Abutment	linear ft.	145	145	0	0	0
Reinforced Concrete Pier Cap	linear ft.	185	185	0	0	0
Bearings
Elastomeric Bearing	each	20	20	0	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	360	360	0	0	0