US Bridges

Larto Lake Cutoff over Powell Cut-Off

Good

Catahoula Parish, Louisiana · 1.7 Miles SW of LA 3102 · Structure no. 581331182915851

Built
1999
26 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
114 ft
6 main spans
Daily traffic
130
1999 count
Owner
County
County Highway Agency

About this bridge

Larto Lake Cutoff over Powell Cut-Off is a concrete slab carrying Larto Lake Cutoff over Powell Cut-Off in Catahoula Parish, Louisiana. It was built in 1999, so it is 26 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 130 vehicles a day, projected to reach 143 by 2019. The structure is 114 ft (34.7 m) long and 27 ft wide. If it were closed, the detour would be 51 mi (82 km).

CarriesLarto Lake Cutoff
CrossesPowell Cut-Off
Location1.7 Miles SW of LA 3102
RouteCounty Highway 0
Coordinates31.30366, -91.97355
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 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 width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (1999)
Projected traffic143 by 2019
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed51 mi (82 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Larto Lake Cutoff over Powell Cut-Off built?

It was built in 1999, making it 26 years old in 2025.

What condition is Larto Lake Cutoff over Powell Cut-Off in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Larto Lake Cutoff over Powell Cut-Off carry?

About 130 vehicles per day (1999 count).

How long is Larto Lake Cutoff over Powell Cut-Off?

The structure is 114 ft (34.7 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Larto Lake Cutoff over Powell Cut-Off?

It is owned by the County Highway Agency.