US Bridges

I0010 over Coulee Mine

Fair

Lafayette Parish, Louisiana · 2.2 MI East of LA 93 · Structure no. 032804500506221

Built
1968
57 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
56,748
2021 count
Owner
State
State Highway Agency

About this bridge

I0010 over Coulee Mine is a concrete culvert carrying I0010 over Coulee Mine in Lafayette Parish, Louisiana. It was built in 1968, so it is 57 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 56,748 vehicles a day, roughly 28% of them trucks, projected to reach 62,422 by 2041. The structure is 30 ft (9.1 m) long and 160 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI0010
CrossesCoulee Mine
Location2.2 MI East of LA 93
RouteInterstate 10
Coordinates30.24686, -92.0722
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span9 ft (2.7 m)
Deck width160 ft (48.7 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56,748 (2021)
Projected traffic62,422 by 2041
Trucks28%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I0010 over Coulee Mine built?

It was built in 1968, making it 57 years old in 2025.

What condition is I0010 over Coulee Mine 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 September 2024.

How much traffic does I0010 over Coulee Mine carry?

About 56,748 vehicles per day (2021 count), of which roughly 28% are trucks.

How long is I0010 over Coulee Mine?

The structure is 30 ft (9.1 m) long with a longest span of 9 ft (2.7 m) and a deck 160 ft wide.

Who owns I0010 over Coulee Mine?

It is owned by the State Highway Agency.