US Bridges

Young St. over Lasalle Coulee

Fair

Lafayette Parish, Louisiana · 1.88 MI W of US 90 · Structure no. 032802130601051

Built
1959
66 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
60 ft
3 main spans
Daily traffic
7,700
2020 count
Owner
County
County Highway Agency

About this bridge

Young St. over Lasalle Coulee is a concrete slab carrying Young St. over Lasalle Coulee in Lafayette Parish, Louisiana. It was built in 1959, so it is 66 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 6 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 7,700 vehicles a day, roughly 19% of them trucks, projected to reach 8,470 by 2040. The structure is 60 ft (18.3 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesYoung St.
CrossesLasalle Coulee
Location1.88 MI W of US 90
RouteCity Street 0
CountyLafayette Parish
StateLouisiana
Coordinates30.10197, -91.97446
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.2 US tons
Inventory rating24.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2020)
Projected traffic8,470 by 2040
Trucks19%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$228,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Young St. over Lasalle Coulee built?

It was built in 1959, making it 66 years old in 2025.

What condition is Young St. over Lasalle 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 October 2023.

How much traffic does Young St. over Lasalle Coulee carry?

About 7,700 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is Young St. over Lasalle Coulee?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns Young St. over Lasalle Coulee?

It is owned by the County Highway Agency.