US Bridges

LA0457 over Chatlin-Lake-Canal

Fair

Rapides Parish, Louisiana · 4.34 Mi. NE of US 71 · Structure no. 084000730404341

Built
1979
46 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
154 ft
9 main spans
Daily traffic
806
2021 count
Owner
State
State Highway Agency

About this bridge

LA0457 over Chatlin-Lake-Canal is a concrete slab carrying LA0457 over Chatlin-Lake-Canal in Rapides 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 806 vehicles a day, roughly 14% of them trucks, projected to reach 886 by 2041. The structure is 154 ft (46.9 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLA0457
CrossesChatlin-Lake-Canal
Location4.34 Mi. NE of US 71
RouteState Highway 457
CountyRapides Parish
StateLouisiana
Coordinates31.12019, -92.3444
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating29.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans9
Design loadHS 20
Structure length154 ft (46.9 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 traffic806 (2021)
Projected traffic886 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 LA0457 over Chatlin-Lake-Canal built?

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

What condition is LA0457 over Chatlin-Lake-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 LA0457 over Chatlin-Lake-Canal carry?

About 806 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0457 over Chatlin-Lake-Canal?

The structure is 154 ft (46.9 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns LA0457 over Chatlin-Lake-Canal?

It is owned by the State Highway Agency.