US Bridges

LA0004 over Saline Bayou Relief 2

Good

Bienville Parish, Louisiana · 1.46 MI East of LA 9 · Structure no. 040700000040262

Built
2010
15 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
200 ft
10 main spans
Daily traffic
504
2021 count
Owner
State
State Highway Agency

About this bridge

LA0004 over Saline Bayou Relief 2 is a concrete slab carrying LA0004 over Saline Bayou Relief 2 in Bienville Parish, Louisiana. It was built in 2010, so it is 15 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 504 vehicles a day, roughly 19% of them trucks, projected to reach 554 by 2041. The structure is 200 ft (61 m) long and 43 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesLA0004
CrossesSaline Bayou Relief 2
Location1.46 MI East of LA 9
RouteState Highway 4
Coordinates32.24916, -92.9732
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length200 ft (61 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic504 (2021)
Projected traffic554 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0004 over Saline Bayou Relief 2 built?

It was built in 2010, making it 15 years old in 2025.

What condition is LA0004 over Saline Bayou Relief 2 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does LA0004 over Saline Bayou Relief 2 carry?

About 504 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0004 over Saline Bayou Relief 2?

The structure is 200 ft (61 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns LA0004 over Saline Bayou Relief 2?

It is owned by the State Highway Agency.