US Bridges

LA0012 over Sabine River

Poor

Calcasieu Parish, Louisiana · 5.0 MI West of LA 109 · Structure no. 071000120100001

Built
1938
87 years old
Condition
Poor
inspected April 2024
Type
Movable - Swing
Steel
Length
327 ft
1 main span
Daily traffic
3,365
2021 count
Owner
State
State Highway Agency

About this bridge

LA0012 over Sabine River is a steel movable - swing carrying LA0012 over Sabine River in Calcasieu Parish, Louisiana. It was built in 1938, so it is 87 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 4 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 3,365 vehicles a day, roughly 18% of them trucks, projected to reach 3,701 by 2041. The structure is 327 ft (99.7 m) long and 28 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesLA0012
CrossesSabine River
Location5.0 MI West of LA 109
RouteState Highway 12
Coordinates30.30367, -93.74401
Functional classRural Minor Arterial

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45 US tons
Inventory rating29 US tons

Structure

Structure typeMovable - Swing
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+4 approach)
Design loadH 15
Structure length327 ft (99.7 m)
Longest span160 ft (48.8 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,365 (2021)
Projected traffic3,701 by 2041
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0012 over Sabine River built?

It was built in 1938, making it 87 years old in 2025.

What condition is LA0012 over Sabine River 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 April 2024.

How much traffic does LA0012 over Sabine River carry?

About 3,365 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is LA0012 over Sabine River?

The structure is 327 ft (99.7 m) long with a longest span of 160 ft (48.8 m) and a deck 28 ft wide.

Who owns LA0012 over Sabine River?

It is owned by the State Highway Agency.