US Bridges

LA0153 over Castor Cr. Relief

Fair

Bienville Parish, Louisiana · 8.62 MI North of LA 155 · Structure no. 040700880208621

Built
1974
51 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
1,377
2021 count
Owner
State
State Highway Agency

About this bridge

LA0153 over Castor Cr. Relief is a concrete slab carrying LA0153 over Castor Cr. Relief in Bienville Parish, Louisiana. It was built in 1974, so it is 51 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 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 1,377 vehicles a day, roughly 19% of them trucks, projected to reach 1,514 by 2041. The structure is 100 ft (30.5 m) long and 35 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesLA0153
CrossesCastor Cr. Relief
Location8.62 MI North of LA 155
RouteState Highway 153
CountyBienville Parish
StateLouisiana
Coordinates32.2455, -93.161
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,377 (2021)
Projected traffic1,514 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed36 mi (58 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 LA0153 over Castor Cr. Relief built?

It was built in 1974, making it 51 years old in 2025.

What condition is LA0153 over Castor Cr. 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 March 2024.

How much traffic does LA0153 over Castor Cr. Relief carry?

About 1,377 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0153 over Castor Cr. Relief?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 35 ft wide.

Who owns LA0153 over Castor Cr. Relief?

It is owned by the State Highway Agency.