US Bridges

LA 964 over Riddle Creek

Good

West Feliciana Parish, Louisiana · 2.1 MI SE of US 61 · Structure no. 616300000616318

Built
2024
1 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete
Length
60 ft
3 main spans
Daily traffic
1,650
2021 count
Owner
State
State Highway Agency

About this bridge

LA 964 over Riddle Creek is a concrete slab carrying LA 964 over Riddle Creek in West Feliciana Parish, Louisiana. It was built in 2024, so it is 1 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,650 vehicles a day, roughly 20% of them trucks, projected to reach 1,815 by 2041. The structure is 60 ft (18.3 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesLA 964
CrossesRiddle Creek
Location2.1 MI SE of US 61
RouteState Highway 964
Coordinates30.72231, -91.30542
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.9 US tons
Inventory rating67.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadGreater than HL 93
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,650 (2021)
Projected traffic1,815 by 2041
Trucks20%
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 LA 964 over Riddle Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is LA 964 over Riddle Creek 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 July 2024.

How much traffic does LA 964 over Riddle Creek carry?

About 1,650 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is LA 964 over Riddle Creek?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 34 ft wide.

Who owns LA 964 over Riddle Creek?

It is owned by the State Highway Agency.