IL 43 NB (HARLEM) over RR - CN

Map

Coordinates:
+41.79826, -87.80170
41°47'54" N, 87°48'06" W

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

Name:	IL 43 NB (HARLEM) over RR - CN
Structure number:	016031800000000
Old structure number:	000016031804060 `(from 1992 edition)`
Location:	0.1 M S I-55
Purpose:	Carries highway over railroad
Route classification:	Other Principal Arterial (Urban) `[14]`
Length of largest span:	74.2 ft. `[22.6 m]`
Total length:	217.9 ft. `[66.4 m]`
Roadway width between curbs:	48.6 ft. `[14.8 m]`
Deck width edge-to-edge:	55.4 ft. `[16.9 m]`
Vertical clearance below bridge:	19.7 ft. `[6.0 m]`
Owner:	State Highway Agency `[01]`
Year built:	1931
Year reconstructed:	1990
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:	Steel continuous `[4]`
Main spans design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	38,900 `[as of 2017]`
Truck traffic:	16% of total traffic
Deck condition:	Satisfactory `[6 out of 9]`
Superstructure condition:	Fair `[5 out of 9]`
Substructure condition:	Satisfactory `[6 out of 9]`
Structural appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Deck geometry appraisal:	Basically intolerable requiring high priority of replacement `[2]`
Underclearances appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Scour condition:	Bridge not over waterway. `[N]`
Sufficiency rating:	54.0
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. `[31]`
Estimated cost of work:	$2,786,000

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
September 2017	Fair	Satisfactory	Fair	Satisfactory	38900	54.0
October 2015	Good	Good	Good	Good	44700	65.0
November 2013	Good	Good	Good	Good	45600	65.0
November 2011	Fair	Good	Satisfactory	Good	21900	68.1
January 2010	Fair	Good	Satisfactory	Good	21900	68.1
January 2008	Fair	Good	Satisfactory	Good	23750	67.2
January 2006	Fair	Good	Satisfactory	Good	23200	67.4
April 2004	Good	Good	Good	Good	21500	68.3
November 2001	Good	Good	Good	Good	18500	69.8
March 2000	Good	Good	Good	Good	22950	67.6
July 1997	Good	Good	Very Good	Good	22950	67.6
July 1994	Good	Good	Very Good	Good	18150	68.0
October 1993	Good	Good	Very Good	Good	19850	67.1
May 1992	Good	Very Good	Very Good	Very Good	21500	66.3
April 1991	Poor	Poor	Very Good	Very Good	21500	64.8

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Superstructure
Steel Girder/Beam	linear ft.	1,308	1,286	18	4	0
Deck
Reinforced Concrete Deck	sq. ft.	12,399	11,899	500	0	0
Substructure
Reinforced Concrete Column	each	17	17	0	0	0
Reinforced Concrete Pier Wall	linear ft.	189	185	3	1	0
Reinforced Concrete Abutment	linear ft.	111	107	2	2	0
Reinforced Concrete Pier Cap	linear ft.	300	294	6	0	0
Joints
Strip Seal Joint	linear ft.	128	128	0	0	0
Bearings
Elastomeric Bearing	each	36	21	15	0	0
Fixed Bearing	each	9	9	0	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	436	386	50	0	0