US Bridges

LA0181 over Diversion Canal

Fair

Rapides Parish, Louisiana · 0.10 MI South of I-49 · Structure no. 084003720501591

Built
1985
40 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
739
2021 count
Owner
State
State Highway Agency

About this bridge

LA0181 over Diversion Canal is a concrete slab carrying LA0181 over Diversion Canal in Rapides Parish, Louisiana. It was built in 1985, so it is 40 years old, younger 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 6 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 739 vehicles a day, roughly 14% of them trucks, projected to reach 812 by 2041. The structure is 120 ft (36.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLA0181
CrossesDiversion Canal
Location0.10 MI South of I-49
RouteState Highway 181
CountyRapides Parish
StateLouisiana
Coordinates30.98552, -92.309
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic739 (2021)
Projected traffic812 by 2041
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 LA0181 over Diversion Canal built?

It was built in 1985, making it 40 years old in 2025.

What condition is LA0181 over Diversion 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 March 2024.

How much traffic does LA0181 over Diversion Canal carry?

About 739 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0181 over Diversion Canal?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns LA0181 over Diversion Canal?

It is owned by the State Highway Agency.