US Bridges

LA0422 over Richland Creek

Good

East Feliciana Parish, Louisiana · 5.4 MI W of LA 67 · Structure no. 611900000611912

Built
2020
5 years old
Condition
Good
inspected December 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
153
2021 count
Owner
State
State Highway Agency

About this bridge

LA0422 over Richland Creek is a concrete slab carrying LA0422 over Richland Creek in East Feliciana 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 153 vehicles a day, roughly 14% of them trucks, projected to reach 168 by 2041. The structure is 100 ft (30.5 m) long and 34 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesLA0422
CrossesRichland Creek
Location5.4 MI W of LA 67
RouteState Highway 422
Coordinates30.98582, -91.01131
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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating62.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadGreater than HL 93
Structure length100 ft (30.5 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 traffic153 (2021)
Projected traffic168 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 LA0422 over Richland Creek built?

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

What condition is LA0422 over Richland 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 December 2024.

How much traffic does LA0422 over Richland Creek carry?

About 153 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA0422 over Richland Creek?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 34 ft wide.

Who owns LA0422 over Richland Creek?

It is owned by the State Highway Agency.