US Bridges

Loc RD over Conway Bayou

Good

St. James Parish, Louisiana · 3.8 Mi. N.W. of LA 641 · Structure no. 614700000614700

Built
2024
1 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
290
2023 count
Owner
County
County Highway Agency

About this bridge

Loc RD over Conway Bayou is a concrete slab carrying Loc RD over Conway Bayou in St. James 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 290 vehicles a day, projected to reach 319 by 2043. The structure is 80 ft (24.4 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesLoc RD
CrossesConway Bayou
Location3.8 Mi. N.W. of LA 641
RouteCounty Highway 0
CountySt. James Parish
StateLouisiana
Coordinates30.10157, -90.73657
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating62.5 US tons
Inventory rating48.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length80 ft (24.4 m)
Longest span20 ft (6.1 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic290 (2023)
Projected traffic319 by 2043
Trucks—
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

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 Loc RD over Conway Bayou built?

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

What condition is Loc RD over Conway Bayou 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 June 2024.

How much traffic does Loc RD over Conway Bayou carry?

About 290 vehicles per day (2023 count).

How long is Loc RD over Conway Bayou?

The structure is 80 ft (24.4 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns Loc RD over Conway Bayou?

It is owned by the County Highway Agency.