US Bridges

LA0083 over Kelly Canal

Good

St. Mary Parish, Louisiana · 2.80 MI West of US 90 · Structure no. 035102390211201

Built
1954
71 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
3,078
2021 count
Owner
State
State Highway Agency

About this bridge

LA0083 over Kelly Canal is a concrete culvert carrying LA0083 over Kelly Canal in St. Mary Parish, Louisiana. It was built in 1954, so it is 71 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 3,078 vehicles a day, roughly 13% of them trucks, projected to reach 3,385 by 2041. The structure is 27 ft (8.2 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA0083
CrossesKelly Canal
Location2.80 MI West of US 90
RouteState Highway 83
Coordinates29.8357, -91.6301
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width37 ft (11.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,078 (2021)
Projected traffic3,385 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 LA0083 over Kelly Canal built?

It was built in 1954, making it 71 years old in 2025.

What condition is LA0083 over Kelly 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 August 2023.

How much traffic does LA0083 over Kelly Canal carry?

About 3,078 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0083 over Kelly Canal?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 37 ft wide.

Who owns LA0083 over Kelly Canal?

It is owned by the State Highway Agency.