US Bridges

Suire RD over Laport Coulee

GoodPosted for load

Vermilion Parish, Louisiana · 0.1 Mi. S of LA 14 · Structure no. 035700000030359

Built
2014
11 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
35 ft
2 main spans
Daily traffic
574
2021 count
Owner
County
County Highway Agency

About this bridge

Suire RD over Laport Coulee is a wood or timber stringer/multi-beam or girder carrying Suire RD over Laport Coulee in Vermilion Parish, Louisiana. It was built in 2014, so it is 11 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. Its operating status is: posted for load restriction.

It carries about 574 vehicles a day, projected to reach 631 by 2041. The structure is 35 ft (10.7 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSuire RD
CrossesLaport Coulee
Location0.1 Mi. S of LA 14
RouteCounty Highway 0
Coordinates29.95967, -92.02786
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.2 US tons
Inventory rating22.5 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 20
Structure length35 ft (10.7 m)
Longest span17 ft (5.2 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic574 (2021)
Projected traffic631 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Suire RD over Laport Coulee built?

It was built in 2014, making it 11 years old in 2025.

What condition is Suire RD over Laport 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 September 2023.

How much traffic does Suire RD over Laport Coulee carry?

About 574 vehicles per day (2021 count).

How long is Suire RD over Laport Coulee?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.2 m) and a deck 27 ft wide.

Who owns Suire RD over Laport Coulee?

It is owned by the County Highway Agency.