US Bridges

LA1246 over Vermilion River

Good

Vermilion Parish, Louisiana · 0.1 MI W. of LA 82 · Structure no. 035708576900011

Built
1992
33 years old
Condition
Good
inspected August 2024
Type
Movable - Swing
Steel
Length
363 ft
2 main spans
Daily traffic
80
2021 count
Owner
State
State Highway Agency

About this bridge

LA1246 over Vermilion River is a steel movable - swing carrying LA1246 over Vermilion River in Vermilion Parish, Louisiana. It was built in 1992, so it is 33 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 80 vehicles a day, roughly 15% of them trucks, projected to reach 88 by 2041. The structure is 363 ft (110.6 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesLA1246
CrossesVermilion River
Location0.1 MI W. of LA 82
RouteState Highway 1246
Coordinates30.061, -92.07952
Functional classRural Local

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.3 US tons
Inventory rating22.8 US tons

Structure

Structure typeMovable - Swing
MaterialSteel
DeckOpen grating
Main spans2 (+11 approach)
Design loadHS 20
Structure length363 ft (110.6 m)
Longest span80 ft (24.4 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck19 ft (5.7 m)

Traffic and service

Average daily traffic80 (2021)
Projected traffic88 by 2041
Trucks15%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was LA1246 over Vermilion River built?

It was built in 1992, making it 33 years old in 2025.

What condition is LA1246 over Vermilion River 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 August 2024.

How much traffic does LA1246 over Vermilion River carry?

About 80 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA1246 over Vermilion River?

The structure is 363 ft (110.6 m) long with a longest span of 80 ft (24.4 m) and a deck 33 ft wide.

Who owns LA1246 over Vermilion River?

It is owned by the State Highway Agency.