US Bridges

LA0103 over Drainage Canal

FairPosted for load

St. Landry Parish, Louisiana · 1 MI North of US 190 · Structure no. 034908490301041

Built
1953
72 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
39 ft
2 main spans
Daily traffic
1,349
2021 count
Owner
State
State Highway Agency

About this bridge

LA0103 over Drainage Canal is a wood or timber stringer/multi-beam or girder carrying LA0103 over Drainage Canal in St. Landry Parish, Louisiana. It was built in 1953, so it is 72 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 5 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 1,349 vehicles a day, roughly 12% of them trucks, projected to reach 1,483 by 2041. The structure is 39 ft (11.9 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesLA0103
CrossesDrainage Canal
Location1 MI North of US 190
RouteState Highway 103
CountySt. Landry Parish
StateLouisiana
Coordinates30.53167, -92.2111
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.2 US tons
Inventory rating10 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 15
Structure length39 ft (11.9 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 traffic1,349 (2021)
Projected traffic1,483 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$234,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0103 over Drainage Canal built?

It was built in 1953, making it 72 years old in 2025.

What condition is LA0103 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 June 2023.

How much traffic does LA0103 over Drainage Canal carry?

About 1,349 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is LA0103 over Drainage Canal?

The structure is 39 ft (11.9 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns LA0103 over Drainage Canal?

It is owned by the State Highway Agency.