US Bridges

LA1181 over Borrow Pit Canal

Fair

Avoyelles Parish, Louisiana · 4.31 M E of W JCT LA 1182 · Structure no. 080508052304311

Built
1979
46 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
248 ft
14 main spans
Daily traffic
1,716
2021 count
Owner
State
State Highway Agency

About this bridge

LA1181 over Borrow Pit Canal is a concrete slab carrying LA1181 over Borrow Pit Canal in Avoyelles Parish, Louisiana. It was built in 1979, so it is 46 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 1,716 vehicles a day, roughly 10% of them trucks, projected to reach 1,887 by 2041. The structure is 248 ft (75.6 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesLA1181
CrossesBorrow Pit Canal
Location4.31 M E of W JCT LA 1182
RouteState Highway 1181
CountyAvoyelles Parish
StateLouisiana
Coordinates30.95284, -91.9162
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating35.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans14
Design loadHS 20
Structure length248 ft (75.6 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,716 (2021)
Projected traffic1,887 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1181 over Borrow Pit Canal built?

It was built in 1979, making it 46 years old in 2025.

What condition is LA1181 over Borrow Pit Canal 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 May 2024.

How much traffic does LA1181 over Borrow Pit Canal carry?

About 1,716 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA1181 over Borrow Pit Canal?

The structure is 248 ft (75.6 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns LA1181 over Borrow Pit Canal?

It is owned by the State Highway Agency.