LOCAL ROAD over LAKE PONTCHARTRAIN

Map

Coordinates:
+30.20306, -90.12212
30°12'11" N, 90°07'20" W

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

Name:	LOCAL ROAD over LAKE PONTCHARTRAIN
Structure number:	625230123900731
Location:	CAUSEWAY SOUTHBOUND
Purpose:	Carries highway over waterway
Route classification:	Other Principal Arterial (Urban) `[14]`
Tolls:	Yes `[1]`
Length of largest span:	180.1 ft. `[54.9 m]`
Total length:	125833.2 ft. `[38352.1 m]`
Roadway width between curbs:	27.9 ft. `[8.5 m]`
Deck width edge-to-edge:	31.5 ft. `[9.6 m]`
Vertical clearance below bridge:	999.1 ft. `[304.5 m]`
Owner:	Other Local Agencies `[25]`
Year built:	1956
Historic significance:	Bridge is eligible for the National Register of Historic Places `[2]`
Design load:	MS 18 / HS 20 `[5]`
Main span material:	Steel `[3]`
Main span design:	Movable - Bascule `[16]`
Deck type:	Open Grating `[3]`
Wearing surface:	Monolithic Concrete (concurrently placed with structural deck) `[1]`

Good/Fair/Poor Condition:	Fair
Status:	Posted for load `[P]`
Average daily traffic:	18,830 `[as of 1987]`
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Satisfactory `[6 out of 9]`
Substructure condition:	Good `[7 out of 9]`
Structural appraisal:	Equal to present minimum criteria `[6]`
Deck geometry appraisal:	Basically intolerable requiring high priority of corrrective action `[3]`
Water adequacy appraisal:	Equal to present desirable criteria `[8]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. `[8]`
Scour condition:	Bridge with "unknown" foundation that has not been evaluated for scour. `[U]`
Operating rating:	58.9 tons `[53.5 metric tons]`
Inventory rating:	33.9 tons `[30.8 metric tons]`
Sufficiency rating:	59.1
Recommended work:	Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. `[31]`
Estimated cost of work:	$343,507,000

Date	Suff. Rating	Condition	Deck	Superstructure	Substructure	SD/FO	ADT
June 2016	59.1	Fair	Good	Satisfactory	Good	FO	18830
May 2015	58.9	Fair	Good	Satisfactory	Good	FO	18830
April 2013	58.9	Fair	Good	Satisfactory	Good	FO	18830
November 2010	63.9	Fair	Good	Satisfactory	Good	FO	18830
October 2009	63.9	Fair	Good	Satisfactory	Good	FO	18830
November 2008	63.9	Fair	Good	Satisfactory	Good	FO	18830
September 2007	63.9	Good	Very Good	Very Good	Very Good	FO	18830
November 2004	63.9	Fair	Good	Satisfactory	Good	FO	18830
July 2002	63.9	Fair	Good	Satisfactory	Satisfactory	FO	18830
October 2000	63.9	Fair	Good	Satisfactory	Satisfactory	FO	18830
November 1996	52.9	Fair	Very Good	Good	Fair	FO	18830
August 1990	62.8	Good	Very Good	Very Good	Very Good	FO	18830

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.	2,533	2,250	283	0	0
Prestressed Concrete Girder/Beam	linear ft.	890,657	21,338	601,779	173,279	94,261
Steel Stringer	linear ft.	1,026	1,026	0	0	0
Deck
Reinforced Concrete Deck	sq. ft.	4,053,660	4,156	4,049,504	0	0
Superstructure
Steel Floor Beam	linear ft.	438	438	0	0	0
Substructure
Reinforced Concrete Abutment	linear ft.	182	118	64	0	0
Prestressed Concrete Pile	each	5,259	377	4,882	0	0
Reinforced Concrete Pier Cap	linear ft.	75,144	2,256	72,375	513	0
Deck
Open Grid Deck	sq. ft.	3,920	3,920	0	0	0
Concrete Filled Grid Deck	sq. ft.	1,008	1,008	0	0	0
Joints
Pourable Joint	linear ft.	2,087	2,055	32	0	0
Open Joint	linear ft.	66,006	65,894	0	112	0
Bearings
Elastomeric Bearing	each	320	320	0	0	0
Movable Bearing	each	3,176	0	0	3,175	1
Fixed Bearing	each	28,264	0	28,264	0	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	286	0	286	0	0
Reinforced Concrete Bridge Rail	linear ft.	254,094	41,923	211,386	785	0
Timber Bridge Rail	linear ft.	56	0	56	0	0
Deck
Reinforced Concrete Slab	sq. ft.	43,240	43,240	0	0	0