US Bridges

I0010 over West Atchafalaya Fldway

Fair

St. Martin Parish, Louisiana · 4.49 MI E of LA 347 · Structure no. 035000000300242

Built
1991
34 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
129 ft
3 main spans
Daily traffic
23,521
2021 count
Owner
State
State Highway Agency

About this bridge

I0010 over West Atchafalaya Fldway is a prestressed concrete stringer/multi-beam or girder carrying I0010 over West Atchafalaya Fldway in St. Martin Parish, Louisiana. It was built in 1991, so it is 34 years old, younger 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 23,521 vehicles a day, roughly 22% of them trucks, projected to reach 25,873 by 2041. The structure is 129 ft (39.3 m) long and 55 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI0010
CrossesWest Atchafalaya Fldway
Location4.49 MI E of LA 347
RouteInterstate 10
CountySt. Martin Parish
StateLouisiana
Coordinates30.33231, -91.75906
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
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 rating69 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length129 ft (39.3 m)
Longest span43 ft (13.1 m)
Deck width55 ft (16.7 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,521 (2021)
Projected traffic25,873 by 2041
Trucks22%
Lanes on structure1
Traffic directionOne-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 West Atchafalaya Fldway built?

It was built in 1991, making it 34 years old in 2025.

What condition is I0010 over West Atchafalaya Fldway 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 West Atchafalaya Fldway carry?

About 23,521 vehicles per day (2021 count), of which roughly 22% are trucks.

How long is I0010 over West Atchafalaya Fldway?

The structure is 129 ft (39.3 m) long with a longest span of 43 ft (13.1 m) and a deck 55 ft wide.

Who owns I0010 over West Atchafalaya Fldway?

It is owned by the State Highway Agency.