US Bridges

Idlewood Blvd. over Coulee

FairPosted for load

Lafayette Parish, Louisiana · 0.25 MI W of US 167 · Structure no. 032830116920391

Built
1971
54 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
38 ft
2 main spans
Daily traffic
720
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Idlewood Blvd. over Coulee is a concrete slab carrying Idlewood Blvd. over Coulee in Lafayette Parish, Louisiana. It was built in 1971, so it is 54 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. Its operating status is: posted for load restriction.

It carries about 720 vehicles a day, projected to reach 792 by 2040. The structure is 38 ft (11.6 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIdlewood Blvd.
CrossesCoulee
Location0.25 MI W of US 167
RouteCounty Highway 0
CountyLafayette Parish
StateLouisiana
Coordinates30.19225, -92.06464
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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.5 US tons
Inventory rating22.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic720 (2020)
Projected traffic792 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 Idlewood Blvd. over Coulee built?

It was built in 1971, making it 54 years old in 2025.

What condition is Idlewood Blvd. over 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 January 2024.

How much traffic does Idlewood Blvd. over Coulee carry?

About 720 vehicles per day (2020 count).

How long is Idlewood Blvd. over Coulee?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns Idlewood Blvd. over Coulee?

It is owned by the City or Municipal Highway Agency.