US Bridges

LA0107 over Bayou Jack Relief

FairPosted for load

Avoyelles Parish, Louisiana · 0.52 Mi. South of LA 1179 · Structure no. 080501470305541

Built
1958
67 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
1,214
2021 count
Owner
State
State Highway Agency

About this bridge

LA0107 over Bayou Jack Relief is a concrete slab carrying LA0107 over Bayou Jack Relief in Avoyelles Parish, Louisiana. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 1,214 vehicles a day, roughly 14% of them trucks, projected to reach 1,335 by 2041. The structure is 76 ft (23.2 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLA0107
CrossesBayou Jack Relief
Location0.52 Mi. South of LA 1179
RouteState Highway 107
CountyAvoyelles Parish
StateLouisiana
Coordinates30.92285, -91.9426
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating20.7 US tons
Inventory rating15.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadH 15
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,214 (2021)
Projected traffic1,335 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed6.2 mi (10 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$393,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0107 over Bayou Jack Relief built?

It was built in 1958, making it 67 years old in 2025.

What condition is LA0107 over Bayou Jack Relief 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 January 2024.

How much traffic does LA0107 over Bayou Jack Relief carry?

About 1,214 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0107 over Bayou Jack Relief?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns LA0107 over Bayou Jack Relief?

It is owned by the State Highway Agency.