US Bridges

Heather ST over Drainage Canal

FairPosted for load

St. Landry Parish, Louisiana · 0.4 Mi. E. of LA 182 · Structure no. 034930306920471

Built
1976
49 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
33 ft
2 main spans
Daily traffic
1,200
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Heather ST over Drainage Canal is a concrete slab carrying Heather ST over Drainage Canal in St. Landry Parish, Louisiana. It was built in 1976, so it is 49 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. Its operating status is: posted for load restriction.

It carries about 1,200 vehicles a day, projected to reach 1,320 by 2040. The structure is 33 ft (10.1 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHeather ST
CrossesDrainage Canal
Location0.4 Mi. E. of LA 182
RouteCounty Highway 0
CountySt. Landry Parish
StateLouisiana
Coordinates30.50807, -92.07764
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.7 US tons
Inventory rating19.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span16 ft (4.9 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2020)
Projected traffic1,320 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Heather ST over Drainage Canal built?

It was built in 1976, making it 49 years old in 2025.

What condition is Heather ST 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 April 2023.

How much traffic does Heather ST over Drainage Canal carry?

About 1,200 vehicles per day (2020 count).

How long is Heather ST over Drainage Canal?

The structure is 33 ft (10.1 m) long with a longest span of 16 ft (4.9 m) and a deck 34 ft wide.

Who owns Heather ST over Drainage Canal?

It is owned by the City or Municipal Highway Agency.