US Bridges

Landry RD over Armenco Branch Canal

Fair

Iberia Parish, Louisiana · 1.0 Mi. Nw. of LA 674 · Structure no. 032330011915151

Built
1984
41 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
289
2020 count
Owner
County
County Highway Agency

About this bridge

Landry RD over Armenco Branch Canal is a concrete slab carrying Landry RD over Armenco Branch Canal in Iberia Parish, Louisiana. It was built in 1984, so it is 41 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 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 289 vehicles a day, projected to reach 317 by 2040. The structure is 76 ft (23.2 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLandry RD
CrossesArmenco Branch Canal
Location1.0 Mi. Nw. of LA 674
RouteCounty Highway 0
CountyIberia Parish
StateLouisiana
Coordinates30.01913, -91.859
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating40.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic289 (2020)
Projected traffic317 by 2040
Trucks—
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

OwnerCounty Highway Agency
Maintained byCounty 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 Landry RD over Armenco Branch Canal built?

It was built in 1984, making it 41 years old in 2025.

What condition is Landry RD over Armenco Branch 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 October 2024.

How much traffic does Landry RD over Armenco Branch Canal carry?

About 289 vehicles per day (2020 count).

How long is Landry RD over Armenco Branch Canal?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Landry RD over Armenco Branch Canal?

It is owned by the County Highway Agency.