US Bridges

I0010 over I0010

Fair

Ascension Parish, Louisiana · 9.1 MI NW of LA 641 · Structure no. 610304501119066

Built
1975
50 years old
Condition
Fair
inspected November 2023
Type
Girder and Floorbeam System
Steel
Length
594 ft
5 main spans
Daily traffic
8,115
2021 count
Owner
State
State Highway Agency

About this bridge

I0010 over I0010 is a steel girder and floorbeam system carrying I0010 over I0010 in Ascension Parish, Louisiana. It was built in 1975, so it is 50 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 8,115 vehicles a day, roughly 28% of them trucks, projected to reach 8,926 by 2041. The structure is 594 ft (181.1 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI0010
CrossesI0010
Location9.1 MI NW of LA 641
RouteInterstate 10
CountyAscension Parish
StateLouisiana
Coordinates30.15217, -90.80112
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length594 ft (181.1 m)
Longest span140 ft (42.7 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,115 (2021)
Projected traffic8,926 by 2041
Trucks28%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I0010 over I0010 built?

It was built in 1975, making it 50 years old in 2025.

What condition is I0010 over I0010 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 November 2023.

How much traffic does I0010 over I0010 carry?

About 8,115 vehicles per day (2021 count), of which roughly 28% are trucks.

How long is I0010 over I0010?

The structure is 594 ft (181.1 m) long with a longest span of 140 ft (42.7 m) and a deck 28 ft wide.

Who owns I0010 over I0010?

It is owned by the State Highway Agency.