US Bridges

LA0307 over Bayou Rond Pompon

Fair

Lafourche Parish, Louisiana · 14.5 MI North of LA 182 · Structure no. 022908291504801

Built
1976
49 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete
Length
171 ft
9 main spans
Daily traffic
2,271
2021 count
Owner
State
State Highway Agency

About this bridge

LA0307 over Bayou Rond Pompon is a concrete slab carrying LA0307 over Bayou Rond Pompon in Lafourche Parish, Louisiana. It was built in 1976, so it is 49 years old, older 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 6 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 2,271 vehicles a day, roughly 12% of them trucks, projected to reach 2,498 by 2041. The structure is 171 ft (52.1 m) long and 35 ft wide. If it were closed, the detour would be 41 mi (66 km).

Location

Open in Google Maps
CarriesLA0307
CrossesBayou Rond Pompon
Location14.5 MI North of LA 182
RouteState Highway 307
CountyLafourche Parish
StateLouisiana
Coordinates29.8592, -90.6779
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans9
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span19 ft (5.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,271 (2021)
Projected traffic2,498 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed41 mi (66 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0307 over Bayou Rond Pompon built?

It was built in 1976, making it 49 years old in 2025.

What condition is LA0307 over Bayou Rond Pompon 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 February 2023.

How much traffic does LA0307 over Bayou Rond Pompon carry?

About 2,271 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0307 over Bayou Rond Pompon?

The structure is 171 ft (52.1 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns LA0307 over Bayou Rond Pompon?

It is owned by the State Highway Agency.