US Bridges

N. Gin RD over Laports Coulee

Fair

Vermilion Parish, Louisiana · 0.1 MI S of LA 14 · Structure no. 035729574920211

Built
1965
60 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
39 ft
2 main spans
Daily traffic
397
2021 count
Owner
County
County Highway Agency

About this bridge

N. Gin RD over Laports Coulee is a wood or timber stringer/multi-beam or girder carrying N. Gin RD over Laports Coulee in Vermilion Parish, Louisiana. It was built in 1965, so it is 60 years old, older 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 5 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 397 vehicles a day, projected to reach 436 by 2041. The structure is 39 ft (11.9 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN. Gin RD
CrossesLaports Coulee
Location0.1 MI S of LA 14
RouteCounty Highway 0
CountyVermilion Parish
StateLouisiana
Coordinates29.96214, -92.03092
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32 US tons
Inventory rating23 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 20
Structure length39 ft (11.9 m)
Longest span20 ft (6.1 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic397 (2021)
Projected traffic436 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 N. Gin RD over Laports Coulee built?

It was built in 1965, making it 60 years old in 2025.

What condition is N. Gin RD over Laports Coulee 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 2023.

How much traffic does N. Gin RD over Laports Coulee carry?

About 397 vehicles per day (2021 count).

How long is N. Gin RD over Laports Coulee?

The structure is 39 ft (11.9 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.

Who owns N. Gin RD over Laports Coulee?

It is owned by the County Highway Agency.