STH 21 over IH USH 51-IH 39

Map

Coordinates:
+44.03504, -89.52928
44°02'06" N, 89°31'45" W

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

Name:	STH 21 over IH USH 51-IH 39
Structure number:	B69002000000000
Location:	AT JCT STH 21-USH 51
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Other (Rural) `[02]`
Length of largest span:	130.9 ft. `[39.9 m]`
Total length:	253.9 ft. `[77.4 m]`
Roadway width between curbs:	51.8 ft. `[15.8 m]`
Deck width edge-to-edge:	70.9 ft. `[21.6 m]`
Vertical clearance below bridge:	16.4 ft. `[5.0 m]`
Skew angle:	24°
Owner:	State Highway Agency `[01]`
Year built:	1985
Year reconstructed:	2015
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:	2
Main spans material:	Steel continuous `[4]`
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]`

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	5,100 `[as of 2015]`
Truck traffic:	9% of total traffic
Deck condition:	Satisfactory `[6 out of 9]`
Superstructure condition:	Good `[7 out of 9]`
Substructure condition:	Good `[7 out of 9]`
Structural appraisal:	Better than present minimum criteria `[7]`
Deck geometry appraisal:	Superior to present desirable criteria `[9]`
Underclearances appraisal:	Equal to present minimum criteria `[6]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Scour condition:	Bridge not over waterway. `[N]`
Sufficiency rating:	93.0

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
June 2018	Fair	Satisfactory	Good	Good	5100	93.0
June 2016	Fair	Satisfactory	Good	Good	5100	93.0
June 2014	Good	Good	Good	Good	4700	91.0
June 2012	Good	Good	Good	Good	4700	91.0
June 2010	Good	Good	Good	Good	4700	91.8
June 2008	Good	Good	Very Good	Good	4700	91.8
June 2006	Good	Good	Very Good	Good	4700	91.8
October 2004	Good	Good	Very Good	Good	4700	91.8
October 2002	Good	Good	Very Good	Good	6130	91.7
August 2001	Good	Good	Very Good	Good	3925	92.6
October 2000	Good	Good	Very Good	Good	3925	92.6
October 1998	Fair	Satisfactory	Very Good	Good	3925	94.6
November 1997	Fair	Satisfactory	Very Good	Good	3925	94.6
August 1996	Good	Good	Very Good	Very Good	3925	94.6
July 1995	Good	Good	Very Good	Very Good	3925	94.7
May 1994	Good	Good	Very Good	Very Good	3925	94.7
May 1993	Good	Good	Very Good	Very Good	3440	94.7
October 1992	Good	Very Good	Very Good	Very Good	3440	94.7
August 1991	Good	Very Good	Very Good	Very Good	2790	99.8

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.	1,758	1,758	0	0	0
Steel Protective Coating	sq. ft.	26,267	26,254	13	0	0
Deck
Reinforced Concrete Deck	sq. ft.	18,041	17,122	846	73	0
Wearing Surfaces	sq. ft.	18,041	14,541	3,500	0	0
Substructure
Reinforced Concrete Column	each	5	5	0	0	0
Reinforced Concrete Abutment	linear ft.	156	120	34	2	0
Reinforced Concrete Pier Cap	linear ft.	72	67	5	0	0
Joints
Strip Seal Joint	linear ft.	150	10	140	0	0
Bearings
Elastomeric Bearing	each	7	7	0	0	0
Movable Bearing	each	7	5	2	0	0
Fixed Bearing	each	7	7	0	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	507	451	56	0	0