US Bridges

LA0413 over Bayou Poydras

Good

Pointe Coupee Parish, Louisiana · 0.17 M N of LA 3091 · Structure no. 613902270300171

Built
1923
102 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
48 ft
5 main spans
Daily traffic
1,351
2021 count
Owner
State
State Highway Agency

About this bridge

LA0413 over Bayou Poydras is a concrete culvert carrying LA0413 over Bayou Poydras in Pointe Coupee Parish, Louisiana. It was built in 1923, so it is 102 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 1,351 vehicles a day, roughly 14% of them trucks, projected to reach 1,486 by 2041. The structure is 48 ft (14.6 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLA0413
CrossesBayou Poydras
Location0.17 M N of LA 3091
RouteState Highway 413
Coordinates30.57095, -91.39673
Functional classRural Minor 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadH 15
Structure length48 ft (14.6 m)
Longest span6 ft (1.8 m)
Deck width31 ft (9.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,351 (2021)
Projected traffic1,486 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 LA0413 over Bayou Poydras built?

It was built in 1923, making it 102 years old in 2025.

What condition is LA0413 over Bayou Poydras 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 January 2023.

How much traffic does LA0413 over Bayou Poydras carry?

About 1,351 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0413 over Bayou Poydras?

The structure is 48 ft (14.6 m) long with a longest span of 6 ft (1.8 m) and a deck 31 ft wide.

Who owns LA0413 over Bayou Poydras?

It is owned by the State Highway Agency.