US Bridges

I0010 over LA 73

Fair

Ascension Parish, Louisiana · 6.0 Mi. E. of LA 42 · Structure no. 610304501104601

Built
1975
50 years old, rebuilt 1995
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
289 ft
4 main spans
Daily traffic
60,802
2021 count
Owner
State
State Highway Agency

About this bridge

I0010 over LA 73 is a prestressed concrete stringer/multi-beam or girder carrying I0010 over LA 73 in Ascension Parish, Louisiana. It was built in 1975 and reconstructed in 1995, 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 60,802 vehicles a day, roughly 9% of them trucks, projected to reach 66,882 by 2041. The structure is 289 ft (88.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI0010
CrossesLA 73
Location6.0 Mi. E. of LA 42
RouteInterstate 10
CountyAscension Parish
StateLouisiana
Coordinates30.26994, -90.98586
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length289 ft (88.1 m)
Longest span90 ft (27.4 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,802 (2021)
Projected traffic66,882 by 2041
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 LA 73 built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 1995.

What condition is I0010 over LA 73 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 June 2024.

How much traffic does I0010 over LA 73 carry?

About 60,802 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is I0010 over LA 73?

The structure is 289 ft (88.1 m) long with a longest span of 90 ft (27.4 m) and a deck 43 ft wide.

Who owns I0010 over LA 73?

It is owned by the State Highway Agency.