US Bridges

LA0109 over Drain

Poor

Beauregard Parish, Louisiana · 2.0 MI N of LA 389 · Structure no. 070603770201961

Built
1963
62 years old
Condition
Poor
inspected January 2024
Type
Culvert
Steel
Length
33 ft
3 main spans
Daily traffic
1,749
2021 count
Owner
State
State Highway Agency

About this bridge

LA0109 over Drain is a steel culvert carrying LA0109 over Drain in Beauregard Parish, Louisiana. It was built in 1963, so it is 62 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,749 vehicles a day, roughly 17% of them trucks, projected to reach 1,923 by 2041. The structure is 33 ft (10.1 m) long and 36 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesLA0109
CrossesDrain
Location2.0 MI N of LA 389
RouteState Highway 109
Coordinates30.55025, -93.5489
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJanuary 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadH 15
Structure length33 ft (10.1 m)
Longest span9 ft (2.7 m)
Deck width36 ft (11.1 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,749 (2021)
Projected traffic1,923 by 2041
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemYes

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$205,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0109 over Drain built?

It was built in 1963, making it 62 years old in 2025.

What condition is LA0109 over Drain in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does LA0109 over Drain carry?

About 1,749 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is LA0109 over Drain?

The structure is 33 ft (10.1 m) long with a longest span of 9 ft (2.7 m) and a deck 36 ft wide.

Who owns LA0109 over Drain?

It is owned by the State Highway Agency.