US Bridges

LA0022 over Bayou Conway

Fair

Ascension Parish, Louisiana · 0.1 M North I-10 & LA 22 · Structure no. 610302660108101

Built
1990
35 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
11,127
2021 count
Owner
State
State Highway Agency

About this bridge

LA0022 over Bayou Conway is a concrete slab carrying LA0022 over Bayou Conway in Ascension Parish, Louisiana. It was built in 1990, so it is 35 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 6 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 11,127 vehicles a day, roughly 9% of them trucks, projected to reach 12,239 by 2041. The structure is 140 ft (42.7 m) long and 43 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesLA0022
CrossesBayou Conway
Location0.1 M North I-10 & LA 22
RouteState Highway 22
CountyAscension Parish
StateLouisiana
Coordinates30.17556, -90.87337
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating42.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,127 (2021)
Projected traffic12,239 by 2041
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemYes

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 LA0022 over Bayou Conway built?

It was built in 1990, making it 35 years old in 2025.

What condition is LA0022 over Bayou Conway 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 July 2024.

How much traffic does LA0022 over Bayou Conway carry?

About 11,127 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA0022 over Bayou Conway?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 43 ft wide.

Who owns LA0022 over Bayou Conway?

It is owned by the State Highway Agency.