US Bridges

LA0083 over Patout Bayou

Good

Iberia Parish, Louisiana · 4.2 MI N. of LA 319 · Structure no. 032300000030410

Built
2012
13 years old
Condition
Good
inspected December 2024
Type
Movable - Swing
Steel
Length
1,286 ft
2 main spans
Daily traffic
5,447
2020 count
Owner
State
State Highway Agency

About this bridge

LA0083 over Patout Bayou is a steel movable - swing carrying LA0083 over Patout Bayou in Iberia Parish, Louisiana. It was built in 2012, so it is 13 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 5,447 vehicles a day, roughly 13% of them trucks, projected to reach 5,991 by 2040. The structure is 1,286 ft (392 m) long and 35 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesLA0083
CrossesPatout Bayou
Location4.2 MI N. of LA 319
RouteState Highway 83
CountyIberia Parish
StateLouisiana
Coordinates29.83223, -91.79106
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

Structure typeMovable - Swing
MaterialSteel
DeckOpen grating
Main spans2 (+55 approach)
Design loadHS 20
Structure length1,286 ft (392 m)
Longest span186 ft (56.7 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic5,447 (2020)
Projected traffic5,991 by 2040
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was LA0083 over Patout Bayou built?

It was built in 2012, making it 13 years old in 2025.

What condition is LA0083 over Patout Bayou 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 LA0083 over Patout Bayou carry?

About 5,447 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is LA0083 over Patout Bayou?

The structure is 1,286 ft (392 m) long with a longest span of 186 ft (56.7 m) and a deck 35 ft wide.

Who owns LA0083 over Patout Bayou?

It is owned by the State Highway Agency.