US Bridges

LA1220 over Little River

Fair

Natchitoches Parish, Louisiana · 2.90 Mi. East of LA 119 · Structure no. 083500000080547

Built
2010
15 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
242 ft
12 main spans
Daily traffic
99
2021 count
Owner
State
State Highway Agency

About this bridge

LA1220 over Little River is a concrete slab carrying LA1220 over Little River in Natchitoches Parish, Louisiana. It was built in 2010, so it is 15 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 99 vehicles a day, roughly 10% of them trucks, projected to reach 108 by 2041. The structure is 242 ft (73.8 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLA1220
CrossesLittle River
Location2.90 Mi. East of LA 119
RouteState Highway 1220
Coordinates31.64581, -92.9549
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans12
Design loadHS 20
Structure length242 ft (73.8 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.4 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (2021)
Projected traffic108 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1220 over Little River built?

It was built in 2010, making it 15 years old in 2025.

What condition is LA1220 over Little River 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 April 2024.

How much traffic does LA1220 over Little River carry?

About 99 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA1220 over Little River?

The structure is 242 ft (73.8 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns LA1220 over Little River?

It is owned by the State Highway Agency.