US Bridges

LA0074 over I-10

Fair

Ascension Parish, Louisiana · 1.9 Mi. E of LA 928 · Structure no. 610302640300601

Built
1975
50 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
308 ft
4 main spans
Daily traffic
13,875
2021 count
Owner
State
State Highway Agency

About this bridge

LA0074 over I-10 is a prestressed concrete stringer/multi-beam or girder carrying LA0074 over I-10 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 13,875 vehicles a day, roughly 11% of them trucks, projected to reach 15,262 by 2041. The structure is 308 ft (93.9 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesLA0074
CrossesI-10
Location1.9 Mi. E of LA 928
RouteState Highway 74
CountyAscension Parish
StateLouisiana
Coordinates30.25461, -90.97799
Functional classUrban Collector

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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length308 ft (93.9 m)
Longest span100 ft (30.5 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,875 (2021)
Projected traffic15,262 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 LA0074 over I-10 built?

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

What condition is LA0074 over I-10 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 October 2024.

How much traffic does LA0074 over I-10 carry?

About 13,875 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is LA0074 over I-10?

The structure is 308 ft (93.9 m) long with a longest span of 100 ft (30.5 m) and a deck 44 ft wide.

Who owns LA0074 over I-10?

It is owned by the State Highway Agency.