US Bridges

ST Eloi RD over Dularge Bayou

Good

Terrebonne Parish, Louisiana · 0.01 MI W of LA 315 · Structure no. 025500000200810

Built
2013
12 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete
Length
75 ft
3 main spans
Daily traffic
1,177
2023 count
Owner
County
County Highway Agency

About this bridge

ST Eloi RD over Dularge Bayou is a concrete slab carrying ST Eloi RD over Dularge Bayou in Terrebonne Parish, Louisiana. It was built in 2013, so it is 12 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 1,177 vehicles a day, projected to reach 1,294 by 2043. The structure is 75 ft (22.9 m) long and 40 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesST Eloi RD
CrossesDularge Bayou
Location0.01 MI W of LA 315
RouteCounty Highway 0
CountyTerrebonne Parish
StateLouisiana
Coordinates29.45901, -90.75142
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum 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 alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span25 ft (7.6 m)
Deck width40 ft (12.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,177 (2023)
Projected traffic1,294 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.1 mi (13 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 ST Eloi RD over Dularge Bayou built?

It was built in 2013, making it 12 years old in 2025.

What condition is ST Eloi RD over Dularge 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 May 2023.

How much traffic does ST Eloi RD over Dularge Bayou carry?

About 1,177 vehicles per day (2023 count).

How long is ST Eloi RD over Dularge Bayou?

The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.6 m) and a deck 40 ft wide.

Who owns ST Eloi RD over Dularge Bayou?

It is owned by the County Highway Agency.