US Bridges

I0010 over Ramp C. Off Ramp

Fair

St. Martin Parish, Louisiana · 4.61 MI East of LA 347 · Structure no. 035004500614027

Built
1971
54 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
191 ft
3 main spans
Daily traffic
932
2021 count
Owner
State
State Highway Agency

About this bridge

I0010 over Ramp C. Off Ramp is a prestressed concrete stringer/multi-beam or girder carrying I0010 over Ramp C. Off Ramp in St. Martin 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 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 932 vehicles a day, roughly 22% of them trucks, projected to reach 1,025 by 2041. The structure is 191 ft (58.2 m) long and 23 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI0010
CrossesRamp C. Off Ramp
Location4.61 MI East of LA 347
RouteInterstate 10
CountySt. Martin Parish
StateLouisiana
Coordinates30.34101, -91.72653
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating59 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length191 ft (58.2 m)
Longest span65 ft (19.8 m)
Deck width23 ft (7 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic932 (2021)
Projected traffic1,025 by 2041
Trucks22%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I0010 over Ramp C. Off Ramp built?

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

What condition is I0010 over Ramp C. Off Ramp 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 August 2023.

How much traffic does I0010 over Ramp C. Off Ramp carry?

About 932 vehicles per day (2021 count), of which roughly 22% are trucks.

How long is I0010 over Ramp C. Off Ramp?

The structure is 191 ft (58.2 m) long with a longest span of 65 ft (19.8 m) and a deck 23 ft wide.

Who owns I0010 over Ramp C. Off Ramp?

It is owned by the State Highway Agency.