US 31 over 21 ST AVE SO

Map

Coordinates:
+33.49160, -86.78695
33°29'30" N, 86°47'13" W

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

Name:	US 31 over 21 ST AVE SO
Structure number:	008236
Old structure number:	00000003370097B `(from 1992 edition)`
Location:	US 31 * 21 ST AVE SO
Purpose:	Carries highway over highway
Route classification:	Other Principal Arterial (Urban) `[14]`
Length of largest span:	74.2 ft. `[22.6 m]`
Total length:	194.9 ft. `[59.4 m]`
Roadway width between curbs:	40.0 ft. `[12.2 m]`
Deck width edge-to-edge:	43.0 ft. `[13.1 m]`
Vertical clearance below bridge:	18.4 ft. `[5.6 m]`
Skew angle:	25°
Owner:	State Highway Agency `[01]`
Year built:	1964
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:	Concrete continuous `[2]`
Main spans design:	Tee beam `[04]`
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:	42,050 `[as of 2017]`
Truck traffic:	3% of total traffic
Deck condition:	Satisfactory `[6 out of 9]`
Superstructure condition:	Satisfactory `[6 out of 9]`
Substructure condition:	Satisfactory `[6 out of 9]`
Structural appraisal:	Equal to present minimum criteria `[6]`
Deck geometry appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Underclearances appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Scour condition:	Bridge not over waterway. `[N]`
Operating rating:	50.3 tons `[45.7 metric tons]`
Inventory rating:	30.1 tons `[27.4 metric tons]`
Sufficiency rating:	67.0
Estimated cost of work:	$2,264,000

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
February 2017	67.0	Fair	Satisfactory	Satisfactory	Satisfactory	-	42050
February 2015	67.0	Fair	Satisfactory	Good	Good	-	42050
February 2013	67.0	Fair	Satisfactory	Good	Good	-	42135
February 2011	69.3	Fair	Satisfactory	Good	Good	-	39495
February 2009	68.9	Good	Good	Good	Good	-	42650
February 2007	73.8	Good	Good	Good	Very Good	-	43100
February 2005	74.0	Good	Good	Good	Very Good	-	41120
February 2003	74.1	Good	Good	Good	Very Good	-	40915
April 2001	74.1	Good	Good	Good	Very Good	-	40915
April 1999	73.9	Good	Good	Good	Very Good	-	42545
December 1996	74.2	Good	Good	Good	Very Good	-	39815
January 1995	75.2	Good	Good	Good	Very Good	-	39245
December 1992	74.4	Good	Good	Good	Very Good	-	37690
November 1990	74.2	Good	Good	Very Good	Very Good	-	39660

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

Element	Units	Quantity	1. Good	2. Fair	3. Poor	4. Serious
Superstructure
Reinforced Concrete Girder/Beam	linear ft.	1,169	1,143	26	0	0
Deck
Reinforced Concrete Deck	sq. ft.	8,381	0	8,375	2	4
Wearing Surfaces	sq. ft.	7,796	7,796	0	0	0
Substructure
Reinforced Concrete Column	each	6	6	0	0	0
Reinforced Concrete Abutment	linear ft.	130	130	0	0	0
Reinforced Concrete Pier Cap	linear ft.	88	88	0	0	0
Joints
Strip Seal Joint	linear ft.	95	0	0	0	95
Bearings
Movable Bearing	each	18	0	6	12	0
Fixed Bearing	each	6	6	0	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	390	0	390	0	0