US Bridges

Griffin RD over LA Salle Coulee

Good

Lafayette Parish, Louisiana · 1.0 MI NE of LA 89 · Structure no. 032830065915861

Built
1998
27 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
2,420
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Griffin RD over LA Salle Coulee is a concrete slab carrying Griffin RD over LA Salle Coulee in Lafayette Parish, Louisiana. It was built in 1998, so it is 27 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 2,420 vehicles a day, projected to reach 2,662 by 2040. The structure is 57 ft (17.4 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesGriffin RD
CrossesLA Salle Coulee
Location1.0 MI NE of LA 89
RouteCounty Highway 0
CountyLafayette Parish
StateLouisiana
Coordinates30.10923, -91.97731
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating21.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,420 (2020)
Projected traffic2,662 by 2040
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Griffin RD over LA Salle Coulee built?

It was built in 1998, making it 27 years old in 2025.

What condition is Griffin RD over LA Salle 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 January 2024.

How much traffic does Griffin RD over LA Salle Coulee carry?

About 2,420 vehicles per day (2020 count).

How long is Griffin RD over LA Salle Coulee?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Griffin RD over LA Salle Coulee?

It is owned by the City or Municipal Highway Agency.