US Bridges

Forrest Dellatte over Canal

Fair

Livingston Parish, Louisiana · 1.3 MI SE JCT LA16 & I-12 · Structure no. 623230274905531

Built
1985
40 years old
Condition
Fair
inspected August 2024
Type
Culvert
Steel
Length
31 ft
3 main spans
Daily traffic
800
2022 count
Owner
County
County Highway Agency

About this bridge

Forrest Dellatte over Canal is a steel culvert carrying Forrest Dellatte over Canal in Livingston Parish, Louisiana. It was built in 1985, so it is 40 years old, younger 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 5 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 800 vehicles a day, projected to reach 880 by 2042. The structure is 31 ft (9.4 m) long and 53 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesForrest Dellatte
CrossesCanal
Location1.3 MI SE JCT LA16 & I-12
RouteCounty Highway 0
CountyLivingston Parish
StateLouisiana
Coordinates30.45751, -90.92517
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating88.2 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span7 ft (2.1 m)
Deck width53 ft (16.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2022)
Projected traffic880 by 2042
Trucks—
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$138,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Forrest Dellatte over Canal built?

It was built in 1985, making it 40 years old in 2025.

What condition is Forrest Dellatte over Canal 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 2024.

How much traffic does Forrest Dellatte over Canal carry?

About 800 vehicles per day (2022 count).

How long is Forrest Dellatte over Canal?

The structure is 31 ft (9.4 m) long with a longest span of 7 ft (2.1 m) and a deck 53 ft wide.

Who owns Forrest Dellatte over Canal?

It is owned by the County Highway Agency.