US Bridges

LA0013 over Drainage Canal

Good

St. Landry Parish, Louisiana · 1.6 Mi. North of LA 29 · Structure no. 034900570403361

Built
1966
59 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
31 ft
4 main spans
Daily traffic
4,950
2021 count
Owner
State
State Highway Agency

About this bridge

LA0013 over Drainage Canal is a concrete culvert carrying LA0013 over Drainage Canal in St. Landry Parish, Louisiana. It was built in 1966, so it is 59 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 4,950 vehicles a day, roughly 13% of them trucks, projected to reach 5,445 by 2041. The structure is 31 ft (9.4 m) long and 69 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesLA0013
CrossesDrainage Canal
Location1.6 Mi. North of LA 29
RouteState Highway 13
Coordinates30.52498, -92.42341
Functional classRural Minor Arterial

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span6 ft (1.8 m)
Deck width69 ft (21.1 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,950 (2021)
Projected traffic5,445 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 LA0013 over Drainage Canal built?

It was built in 1966, making it 59 years old in 2025.

What condition is LA0013 over Drainage 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 September 2024.

How much traffic does LA0013 over Drainage Canal carry?

About 4,950 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is LA0013 over Drainage Canal?

The structure is 31 ft (9.4 m) long with a longest span of 6 ft (1.8 m) and a deck 69 ft wide.

Who owns LA0013 over Drainage Canal?

It is owned by the State Highway Agency.