LA0082 over SUPERIOR CANAL

Map

Coordinates:
+29.70684, -92.67620
29°42'25" N, 92°40'34" 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:	520 `[as of 2016]`
Truck traffic:	17% of total traffic
Deck condition:	Poor `[4 out of 9]`
Superstructure condition:	Poor `[4 out of 9]`
Substructure condition:	Poor `[4 out of 9]`
Structural appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Deck geometry appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
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]`
Sufficiency rating:	24.0
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. `[31]`
Estimated cost of work:	$2,394,000

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
July 2018	Poor	Poor	Poor	Poor	520	24.0
July 2017	Poor	Poor	Poor	Fair	240	38.4
July 2015	Poor	Poor	Poor	Fair	240	37.1
July 2014	Poor	Fair	Poor	Fair	340	10.0
July 2013	Fair	Fair	Fair	Fair	460	12.8
July 2012	Fair	Fair	Fair	Fair	1170	11.8
July 2011	Fair	Fair	Fair	Fair	1190	11.8
July 2010	Fair	Fair	Fair	Fair	1210	11.8
July 2009	Good	Good	Good	Good	1610	22.8
June 2008	Good	Good	Good	Good	1590	22.8
June 2007	Good	Good	Good	Good	1570	22.8
June 2006	Good	Good	Good	Good	2000	22.8
June 2005	Good	Good	Good	Good	1950	22.8
June 2004	Good	Good	Good	Good	1860	22.8
June 2003	Good	Good	Good	Good	1520	22.8
June 2002	Good	Good	Good	Good	1470	22.8
June 2001	Good	Good	Good	Good	1104	22.8
June 2000	Good	Good	Good	Good	1104	20.8
June 1999	Good	Good	Good	Good	1104	20.8
June 1998	Good	Good	Good	Good	1104	20.8
June 1997	Good	Good	Good	Good	1461	20.8
May 1996	Good	Good	Good	Good	1505	20.8
May 1995	Good	Good	Good	Good	1848	18.8
May 1994	Good	Good	Good	Good	705	20.8
May 1993	Good	Good	Good	Good	685	20.8
May 1992	Good	Good	Good	Good	906	20.8

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.	2,268	1,400	444	344	80
Steel Protective Coating	sq. ft.	5,824	0	2,800	2,844	180
Steel Stringer	linear ft.	1,463	0	763	700	0
Steel Protective Coating	sq. ft.	3,780	0	1,935	1,685	160
Deck
Reinforced Concrete Deck	sq. ft.	9,072	0	0	9,072	0
Superstructure
Steel Truss	linear ft.	418	0	380	22	16
Steel Protective Coating	sq. ft.	15,288	0	10,000	5,000	288
Steel Floor Beam	linear ft.	493	107	250	120	16
Steel Protective Coating	sq. ft.	2,560	0	2,324	220	16
Steel Gusset Plate	each	128	40	70	12	6
Steel Protective Coating	sq. ft.	512	0	175	263	74
Substructure
Reinforced Concrete Abutment	linear ft.	56	0	56	0	0
Reinforced Concrete Pile	each	117	32	58	27	0
Reinforced Concrete Pier Cap	linear ft.	512	396	116	0	0
Deck
Open Grid Deck	sq. ft.	4,272	2,764	1,272	182	54
Steel Protective Coating	sq. ft.	4,272	0	3,918	350	4
Concrete Filled Grid Deck	sq. ft.	720	560	0	160	0
Wearing Surfaces	sq. ft.	720	0	460	210	50
Joints
Open Joint	linear ft.	504	504	0	0	0
Bearings
Movable Bearing	each	192	128	40	24	0
Steel Protective Coating	sq. ft.	384	118	142	106	18
Fixed Bearing	each	192	128	40	24	0
Steel Protective Coating	sq. ft.	384	121	140	107	16
Pot Bearing	each	1	1	0	0	0
Steel Protective Coating	sq. ft.	12	0	12	0	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	1,174	960	158	39	17
Steel Protective Coating	sq. ft.	4,225	2,480	1,210	512	23