US Bridges

LA0720 over Ditch

Good

Lafayette Parish, Louisiana · 0.75 MI West of LA 719 · Structure no. 032808283001731

Built
1964
61 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
22 ft
4 main spans
Daily traffic
1,391
2021 count
Owner
State
State Highway Agency

About this bridge

LA0720 over Ditch is a concrete culvert carrying LA0720 over Ditch in Lafayette Parish, Louisiana. It was built in 1964, so it is 61 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 1,391 vehicles a day, roughly 15% of them trucks, projected to reach 1,530 by 2041. The structure is 22 ft (6.7 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA0720
CrossesDitch
Location0.75 MI West of LA 719
RouteState Highway 720
Coordinates30.20372, -92.22215
Functional classRural Local

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span5 ft (1.5 m)
Deck width53 ft (16.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,391 (2021)
Projected traffic1,530 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 LA0720 over Ditch built?

It was built in 1964, making it 61 years old in 2025.

What condition is LA0720 over Ditch 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 December 2023.

How much traffic does LA0720 over Ditch carry?

About 1,391 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is LA0720 over Ditch?

The structure is 22 ft (6.7 m) long with a longest span of 5 ft (1.5 m) and a deck 53 ft wide.

Who owns LA0720 over Ditch?

It is owned by the State Highway Agency.