US Bridges

LA0330 over Boston Canal

Good

Vermilion Parish, Louisiana · 0.4 MI W of LA 331 · Structure no. 035703970202181

Built
1959
66 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
1,923
2021 count
Owner
State
State Highway Agency

About this bridge

LA0330 over Boston Canal is a concrete culvert carrying LA0330 over Boston Canal in Vermilion Parish, Louisiana. It was built in 1959, so it is 66 years old, older 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 1,923 vehicles a day, roughly 13% of them trucks, projected to reach 2,115 by 2041. The structure is 26 ft (7.9 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLA0330
CrossesBoston Canal
Location0.4 MI W of LA 331
RouteState Highway 330
Coordinates29.88289, -92.0631
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span7 ft (2.1 m)
Deck width38 ft (11.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,923 (2021)
Projected traffic2,115 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 LA0330 over Boston Canal built?

It was built in 1959, making it 66 years old in 2025.

What condition is LA0330 over Boston Canal 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 December 2024.

How much traffic does LA0330 over Boston Canal carry?

About 1,923 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0330 over Boston Canal?

The structure is 26 ft (7.9 m) long with a longest span of 7 ft (2.1 m) and a deck 38 ft wide.

Who owns LA0330 over Boston Canal?

It is owned by the State Highway Agency.