US Bridges

LA0070 over Bayou Corne

Good

Assumption Parish, Louisiana · LA0070 · Structure no. 610402320106361

Built
1960
65 years old
Condition
Good
inspected January 2023
Type
Slab
Concrete
Length
220 ft
11 main spans
Daily traffic
6,842
2021 count
Owner
State
State Highway Agency

About this bridge

LA0070 over Bayou Corne is a concrete slab carrying LA0070 over Bayou Corne in Assumption Parish, Louisiana. It was built in 1960, so it is 65 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,842 vehicles a day, roughly 18% of them trucks, projected to reach 7,526 by 2041. The structure is 220 ft (67.1 m) long and 33 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesLA0070
CrossesBayou Corne
LocationLA0070
RouteState Highway 70
CountyAssumption Parish
StateLouisiana
Coordinates30.01503, -91.15434
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,842 (2021)
Projected traffic7,526 by 2041
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0070 over Bayou Corne built?

It was built in 1960, making it 65 years old in 2025.

What condition is LA0070 over Bayou Corne in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2023.

How much traffic does LA0070 over Bayou Corne carry?

About 6,842 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is LA0070 over Bayou Corne?

The structure is 220 ft (67.1 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns LA0070 over Bayou Corne?

It is owned by the State Highway Agency.