US Bridges

LA0120 over Bayou Provencal

Good

Natchitoches Parish, Louisiana · 1.77 MI E of 117 · Structure no. 083500000080646

Built
2020
5 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
120 ft
6 main spans
Daily traffic
665
2021 count
Owner
State
State Highway Agency

About this bridge

LA0120 over Bayou Provencal is a concrete slab carrying LA0120 over Bayou Provencal in Natchitoches Parish, Louisiana. It was built in 2020, so it is 5 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 665 vehicles a day, roughly 15% of them trucks, projected to reach 731 by 2041. The structure is 120 ft (36.6 m) long and 32 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesLA0120
CrossesBayou Provencal
Location1.77 MI E of 117
RouteState Highway 120
CountyNatchitoches Parish
StateLouisiana
Coordinates31.6435, -93.1742
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating51 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadGreater than HL 93
Structure length120 ft (36.6 m)
Longest span20 ft (6.1 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic665 (2021)
Projected traffic731 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 LA0120 over Bayou Provencal built?

It was built in 2020, making it 5 years old in 2025.

What condition is LA0120 over Bayou Provencal 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 March 2024.

How much traffic does LA0120 over Bayou Provencal carry?

About 665 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0120 over Bayou Provencal?

The structure is 120 ft (36.6 m) long with a longest span of 20 ft (6.1 m) and a deck 32 ft wide.

Who owns LA0120 over Bayou Provencal?

It is owned by the State Highway Agency.