US Bridges

LA0083 over Bayou Blue

Fair

Iberia Parish, Louisiana · 8 MI North of LA 319 · Structure no. 032302400305941

Built
1951
74 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
59 ft
3 main spans
Daily traffic
3,078
2021 count
Owner
State
State Highway Agency

About this bridge

LA0083 over Bayou Blue is a wood or timber stringer/multi-beam or girder carrying LA0083 over Bayou Blue in Iberia Parish, Louisiana. It was built in 1951, so it is 74 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,078 vehicles a day, roughly 13% of them trucks, projected to reach 3,385 by 2041. The structure is 59 ft (18 m) long and 27 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesLA0083
CrossesBayou Blue
Location8 MI North of LA 319
RouteState Highway 83
CountyIberia Parish
StateLouisiana
Coordinates29.88693, -91.78429
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating17 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 15
Structure length59 ft (18 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.8 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 closed13 mi (21 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$319,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0083 over Bayou Blue built?

It was built in 1951, making it 74 years old in 2025.

What condition is LA0083 over Bayou Blue in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does LA0083 over Bayou Blue carry?

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

How long is LA0083 over Bayou Blue?

The structure is 59 ft (18 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns LA0083 over Bayou Blue?

It is owned by the State Highway Agency.