US Bridges

Leblanc RD over Coulee

Good

Lafayette Parish, Louisiana · 1.1 Mi. W. of US 167 · Structure no. 032800000030523

Built
2018
7 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
1,153
2020 count
Owner
County
County Highway Agency

About this bridge

Leblanc RD over Coulee is a prestressed concrete stringer/multi-beam or girder carrying Leblanc RD over Coulee in Lafayette Parish, Louisiana. It was built in 2018, so it is 7 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 1,153 vehicles a day, projected to reach 1,268 by 2040. The structure is 80 ft (24.4 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLeblanc RD
CrossesCoulee
Location1.1 Mi. W. of US 167
RouteCounty Highway 0
CountyLafayette Parish
StateLouisiana
Coordinates30.12296, -92.13271
Functional classUrban 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 inspectionOctober 2023
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 alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadGreater than HL 93
Structure length80 ft (24.4 m)
Longest span40 ft (12.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,153 (2020)
Projected traffic1,268 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Leblanc RD over Coulee built?

It was built in 2018, making it 7 years old in 2025.

What condition is Leblanc RD over Coulee 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 October 2023.

How much traffic does Leblanc RD over Coulee carry?

About 1,153 vehicles per day (2020 count).

How long is Leblanc RD over Coulee?

The structure is 80 ft (24.4 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns Leblanc RD over Coulee?

It is owned by the County Highway Agency.