US Bridges

US165 over LA Irrigation Canal

Fair

Jefferson Davis Parish, Louisiana · 1.7 MI N of US 90 · Structure no. 072700000000280

Built
1962
63 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
52 ft
7 main spans
Daily traffic
8,660
2024 count
Owner
State
State Highway Agency

About this bridge

US165 over LA Irrigation Canal is a concrete culvert carrying US165 over LA Irrigation Canal in Jefferson Davis Parish, Louisiana. It was built in 1962, so it is 63 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 8,660 vehicles a day, projected to reach 9,526 by 2044. The structure is 52 ft (15.8 m) long and 269 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesUS165
CrossesLA Irrigation Canal
Location1.7 MI N of US 90
RouteU.S. Route 165
CountyJefferson Davis Parish
StateLouisiana
Coordinates30.25078, -92.98148
Functional classRural Principal Arterial - Other

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans7
Design loadHL 93
Structure length52 ft (15.8 m)
Longest span7 ft (2.1 m)
Deck width269 ft (82 m)
Roadway width96 ft (29.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,660 (2024)
Projected traffic9,526 by 2044
Trucks—
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 US165 over LA Irrigation Canal built?

It was built in 1962, making it 63 years old in 2025.

What condition is US165 over LA Irrigation 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 US165 over LA Irrigation Canal carry?

About 8,660 vehicles per day (2024 count).

How long is US165 over LA Irrigation Canal?

The structure is 52 ft (15.8 m) long with a longest span of 7 ft (2.1 m) and a deck 269 ft wide.

Who owns US165 over LA Irrigation Canal?

It is owned by the State Highway Agency.