US Bridges

LA0121 over Bayou Rapides

Fair

Rapides Parish, Louisiana · 4.02 Mi. North of LA 28 · Structure no. 084000290613971

Built
2006
19 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
1,662
2021 count
Owner
State
State Highway Agency

About this bridge

LA0121 over Bayou Rapides is a concrete slab carrying LA0121 over Bayou Rapides in Rapides Parish, Louisiana. It was built in 2006, so it is 19 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 1,662 vehicles a day, roughly 14% of them trucks, projected to reach 1,828 by 2041. The structure is 95 ft (29 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLA0121
CrossesBayou Rapides
Location4.02 Mi. North of LA 28
RouteState Highway 121
CountyRapides Parish
StateLouisiana
Coordinates31.31509, -92.6475
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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.5 US tons
Inventory rating33.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length95 ft (29 m)
Longest span19 ft (5.8 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,662 (2021)
Projected traffic1,828 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0121 over Bayou Rapides built?

It was built in 2006, making it 19 years old in 2025.

What condition is LA0121 over Bayou Rapides 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 November 2024.

How much traffic does LA0121 over Bayou Rapides carry?

About 1,662 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0121 over Bayou Rapides?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 34 ft wide.

Who owns LA0121 over Bayou Rapides?

It is owned by the State Highway Agency.