US Bridges

LA3009 over Lake ST Peter Canal

Fair

Tensas Parish, Louisiana · 1.41 MI West of LA 568 · Structure no. 585408541501411

Built
1982
43 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
114 ft
6 main spans
Daily traffic
31
2021 count
Owner
State
State Highway Agency

About this bridge

LA3009 over Lake ST Peter Canal is a concrete slab carrying LA3009 over Lake ST Peter Canal in Tensas Parish, Louisiana. It was built in 1982, so it is 43 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 31 vehicles a day, roughly 11% of them trucks, projected to reach 34 by 2041. The structure is 114 ft (34.7 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesLA3009
CrossesLake ST Peter Canal
Location1.41 MI West of LA 568
RouteState Highway 3009
Coordinates31.88099, -91.4138
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.3 US tons
Inventory rating29.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31 (2021)
Projected traffic34 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 LA3009 over Lake ST Peter Canal built?

It was built in 1982, making it 43 years old in 2025.

What condition is LA3009 over Lake ST Peter 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 February 2024.

How much traffic does LA3009 over Lake ST Peter Canal carry?

About 31 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA3009 over Lake ST Peter Canal?

The structure is 114 ft (34.7 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns LA3009 over Lake ST Peter Canal?

It is owned by the State Highway Agency.