US Bridges

LA0673 over Drainage Canal

Fair

Iberia Parish, Louisiana · 0.2 MI South of LA 85 · Structure no. 032308232000171

Built
1987
38 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
38 ft
2 main spans
Daily traffic
852
2021 count
Owner
State
State Highway Agency

About this bridge

LA0673 over Drainage Canal is a concrete slab carrying LA0673 over Drainage Canal in Iberia Parish, Louisiana. It was built in 1987, so it is 38 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 852 vehicles a day, roughly 12% of them trucks, projected to reach 937 by 2041. The structure is 38 ft (11.6 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLA0673
CrossesDrainage Canal
Location0.2 MI South of LA 85
RouteState Highway 673
CountyIberia Parish
StateLouisiana
Coordinates29.91178, -91.73382
Functional classRural Minor Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.2 US tons
Inventory rating24.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic852 (2021)
Projected traffic937 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0673 over Drainage Canal built?

It was built in 1987, making it 38 years old in 2025.

What condition is LA0673 over Drainage 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 2023.

How much traffic does LA0673 over Drainage Canal carry?

About 852 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0673 over Drainage Canal?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 35 ft wide.

Who owns LA0673 over Drainage Canal?

It is owned by the State Highway Agency.