US Bridges

LA0437 over Bogue Falaya River

Fair

St. Tammany Parish, Louisiana · 1.35 Miles North US 190 · Structure no. 625202790101351

Built
2003
22 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
190 ft
10 main spans
Daily traffic
4,871
2021 count
Owner
State
State Highway Agency

About this bridge

LA0437 over Bogue Falaya River is a concrete slab carrying LA0437 over Bogue Falaya River in St. Tammany Parish, Louisiana. It was built in 2003, so it is 22 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,871 vehicles a day, roughly 8% of them trucks, projected to reach 5,358 by 2041. The structure is 190 ft (57.9 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLA0437
CrossesBogue Falaya River
Location1.35 Miles North US 190
RouteState Highway 437
CountySt. Tammany Parish
StateLouisiana
Coordinates30.49955, -90.0845
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52.5 US tons
Inventory rating40.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans10
Design loadHS 20
Structure length190 ft (57.9 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,871 (2021)
Projected traffic5,358 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$858,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was LA0437 over Bogue Falaya River built?

It was built in 2003, making it 22 years old in 2025.

What condition is LA0437 over Bogue Falaya River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does LA0437 over Bogue Falaya River carry?

About 4,871 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is LA0437 over Bogue Falaya River?

The structure is 190 ft (57.9 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns LA0437 over Bogue Falaya River?

It is owned by the State Highway Agency.