US Bridges

LA0070 over Stream

Good

Ascension Parish, Louisiana · 1.9 M S of LA 70&LA 22 · Structure no. 610304260301271

Built
1966
59 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
29 ft
4 main spans
Daily traffic
24,210
2021 count
Owner
State
State Highway Agency

About this bridge

LA0070 over Stream is a concrete culvert carrying LA0070 over Stream in Ascension Parish, Louisiana. It was built in 1966, so it is 59 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 24,210 vehicles a day, roughly 17% of them trucks, projected to reach 26,631 by 2041. The structure is 29 ft (8.8 m) long and 75 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLA0070
CrossesStream
Location1.9 M S of LA 70&LA 22
RouteState Highway 70
Coordinates30.14001, -90.87259
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span6 ft (1.8 m)
Deck width75 ft (22.9 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,210 (2021)
Projected traffic26,631 by 2041
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 Stream built?

It was built in 1966, making it 59 years old in 2025.

What condition is LA0070 over Stream 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 September 2024.

How much traffic does LA0070 over Stream carry?

About 24,210 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is LA0070 over Stream?

The structure is 29 ft (8.8 m) long with a longest span of 6 ft (1.8 m) and a deck 75 ft wide.

Who owns LA0070 over Stream?

It is owned by the State Highway Agency.