LA0082 over SUPERIOR CANAL

Map

Coordinates:
+29.70656, -92.67477
29°42'24" N, 92°40'29" W

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

Name:	LA0082 over SUPERIOR CANAL
Structure number:	071201940221101
Location:	29.2 MI. S OF INT LA1143
Purpose:	Carries highway over waterway
Route classification:	Major Collector (Rural) `[07]`
Length of largest span:	209.0 ft. `[63.7 m]`
Total length:	588.9 ft. `[179.5 m]`
Roadway width between curbs:	24.0 ft. `[7.3 m]`
Deck width edge-to-edge:	30.2 ft. `[9.2 m]`
Vertical clearance above deck:	15.1 ft. `[4.6 m]`
Vertical clearance below bridge:	13.1 ft. `[4.0 m]`
Owner:	State Highway Agency `[01]`
Year built:	1956
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	M 13.5 / H 15 `[2]`
Main span material:	Steel `[3]`
Main span design:	Movable - Swing `[17]`
Deck type:	Concrete Cast-in-Place `[1]`

Good/Fair/Poor Condition:	Poor
Status:	Posted for load `[P]`
Average daily traffic:	240 `[as of 2015]`
Truck traffic:	16% of total traffic
Deck condition:	Poor `[4 out of 9]`
Superstructure condition:	Poor `[4 out of 9]`
Substructure condition:	Fair `[5 out of 9]`
Structural appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Deck geometry appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Water adequacy appraisal:	Equal to present desirable criteria `[8]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Channel protection:	Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. `[6]`
Pier/abutment protection:	In place and functioning `[2]`
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. `[8]`
Operating rating:	27.1 tons `[24.6 metric tons]`
Inventory rating:	21.0 tons `[19.1 metric tons]`
Sufficiency rating:	38.4
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. `[31]`
Estimated cost of work:	$2,394,000

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
July 2017	38.4	Poor	Poor	Poor	Fair	SD	240
July 2015	37.1	Poor	Poor	Poor	Fair	SD	240
July 2014	10.0	Poor	Fair	Poor	Fair	SD	340
July 2013	12.8	Fair	Fair	Fair	Fair	SD	460
July 2012	11.8	Fair	Fair	Fair	Fair	SD	1170
July 2011	11.8	Fair	Fair	Fair	Fair	SD	1190
July 2010	11.8	Fair	Fair	Fair	Fair	SD	1210
July 2009	22.8	Good	Good	Good	Good	SD	1610
June 2008	22.8	Good	Good	Good	Good	SD	1590
June 2007	22.8	Good	Good	Good	Good	SD	1570
June 2006	22.8	Good	Good	Good	Good	SD	2000
June 2005	22.8	Good	Good	Good	Good	SD	1950
June 2004	22.8	Good	Good	Good	Good	SD	1860
June 2003	22.8	Good	Good	Good	Good	SD	1520
June 2002	22.8	Good	Good	Good	Good	SD	1470
June 2001	22.8	Good	Good	Good	Good	SD	1104
June 2000	20.8	Good	Good	Good	Good	SD	1104
June 1999	20.8	Good	Good	Good	Good	SD	1104
June 1998	20.8	Good	Good	Good	Good	SD	1104
June 1997	20.8	Good	Good	Good	Good	SD	1461
May 1996	20.8	Good	Good	Good	Good	SD	1505
May 1995	18.8	Good	Good	Good	Good	SD	1848
May 1994	20.8	Good	Good	Good	Good	SD	705
May 1993	20.8	Good	Good	Good	Good	SD	685
May 1992	20.8	Good	Good	Good	Good	SD	906

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.	2,268	1,334	934	0	0
Steel Stringer	linear ft.	1,463	763	700	0	0
Deck
Reinforced Concrete Deck	sq. ft.	9,072	6,804	0	2,268	0
Superstructure
Steel Truss	linear ft.	832	0	766	66	0
Steel Floor Beam	linear ft.	493	277	200	16	0
Substructure
Reinforced Concrete Pier Wall	linear ft.	82	0	82	0	0
Reinforced Concrete Abutment	linear ft.	56	0	56	0	0
Prestressed Concrete Pile	each	92	0	92	0	0
Reinforced Concrete Pier Cap	linear ft.	512	0	512	0	0
Deck
Open Grid Deck	sq. ft.	4,272	0	0	4,272	0
Concrete Filled Grid Deck	sq. ft.	720	0	0	720	0
Joints
Open Joint	linear ft.	504	0	0	504	0
Bearings
Movable Bearing	each	192	0	0	192	0
Fixed Bearing	each	108	0	108	0	0
Pot Bearing	each	1	1	0	0	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	1,172	149	759	264	0