I 59/20 over 50 TH ST

Map

Coordinates:
+33.54552, -86.76140
33°32'44" N, 86°45'41" W

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

Name:	I 59/20 over 50 TH ST
Structure number:	011083
Location:	I 59 * 50 TH ST
Purpose:	Carries highway overpass over highway
Route classification:	Principal Arterial - Interstate (Urban) `[11]`
Length of largest span:	82.0 ft. `[25.0 m]`
Total length:	152.9 ft. `[46.6 m]`
Roadway width between curbs:	67.9 ft. `[20.7 m]`
Deck width edge-to-edge:	70.5 ft. `[21.5 m]`
Vertical clearance below bridge:	14.4 ft. `[4.4 m]`
Skew angle:	32°
Owner:	State Highway Agency `[01]`
Year built:	1974
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]`

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	70,200 `[as of 2015]`
Truck traffic:	11% of total traffic
Deck condition:	Good `[7 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:	Equal to present minimum criteria `[6]`
Underclearances appraisal:	Basically intolerable requiring high priority of corrrective action `[3]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Scour condition:	Bridge not over waterway. `[N]`
Operating rating:	62.9 tons `[57.2 metric tons]`
Inventory rating:	40.7 tons `[37.0 metric tons]`
Sufficiency rating:	69.4
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. `[35]`
Estimated cost of work:	$3,011,000

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
November 2015	69.4	Fair	Good	Fair	Satisfactory	FO	70200
November 2013	69.4	Fair	Satisfactory	Fair	Satisfactory	FO	70200
November 2011	69.4	Fair	Satisfactory	Fair	Satisfactory	FO	70545
November 2009	69.2	Fair	Satisfactory	Fair	Good	FO	71710
November 2007	69.2	Fair	Satisfactory	Fair	Good	FO	71565
November 2005	69.5	Fair	Satisfactory	Fair	Good	FO	69460
January 2004	69.7	Fair	Satisfactory	Fair	Good	FO	68040
February 2002	69.7	Fair	Satisfactory	Fair	Good	FO	68040
March 2000	69.7	Fair	Good	Fair	Good	FO	67530
March 1998	70.2	Fair	Good	Fair	Very Good	FO	63620
January 1996	72.0	Fair	Good	Fair	Very Good	FO	60820
March 1994	75.6	Fair	Good	Fair	Very Good	-	57275
November 1991	89.5	Good	Good	Good	Good	-	30785

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

Element	Units	Quantity	1. Good	2. Fair	3. Poor	4. Serious
Superstructure
Steel Girder/Beam	linear ft.	1,376	0	1,176	0	200
Steel Protective Coating	sq. ft.	13,993	0	0	13,993	0
Deck
Reinforced Concrete Deck	sq. ft.	10,779	10,779	0	0	0
Substructure
Reinforced Concrete Column	each	10	10	0	0	0
Reinforced Concrete Abutment	linear ft.	177	0	177	0	0
Reinforced Concrete Pier Cap	linear ft.	136	0	134	2	0
Joints
Compression Joint	linear ft.	282	0	178	0	104
Bearings
Movable Bearing	each	27	0	11	12	4
Fixed Bearing	each	27	0	27	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	306	306	0	0	0