US Bridges

LA0770 over Little Chicksaw

Fair

La Salle Parish, Louisiana · 1.4 MI West of LA 127 · Structure no. 583008300301411

Built
1984
41 years old
Condition
Fair
inspected January 2023
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
129
2021 count
Owner
State
State Highway Agency

About this bridge

LA0770 over Little Chicksaw is a concrete slab carrying LA0770 over Little Chicksaw in La Salle Parish, Louisiana. It was built in 1984, so it is 41 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 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 129 vehicles a day, roughly 11% of them trucks, projected to reach 141 by 2041. The structure is 95 ft (29 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLA0770
CrossesLittle Chicksaw
Location1.4 MI West of LA 127
RouteState Highway 770
Coordinates31.82796, -92.2238
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating72 US tons
Inventory rating43 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 width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic129 (2021)
Projected traffic141 by 2041
Trucks11%
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 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 LA0770 over Little Chicksaw built?

It was built in 1984, making it 41 years old in 2025.

What condition is LA0770 over Little Chicksaw 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 January 2023.

How much traffic does LA0770 over Little Chicksaw carry?

About 129 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0770 over Little Chicksaw?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns LA0770 over Little Chicksaw?

It is owned by the State Highway Agency.