US Bridges

LA0350 over Bayou Teche Parks

PoorPosted for load

St. Martin Parish, Louisiana · 0.36 MI NE of LA 31 · Structure no. 035004003000331

Built
1950
75 years old
Condition
Poor
inspected September 2024
Type
Movable - Lift
Steel
Length
247 ft
1 main span
Daily traffic
3,378
2021 count
Owner
State
State Highway Agency

About this bridge

LA0350 over Bayou Teche Parks is a steel movable - lift carrying LA0350 over Bayou Teche Parks in St. Martin Parish, Louisiana. It was built in 1950, so it is 75 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. Its operating status is: posted for load restriction.

It carries about 3,378 vehicles a day, roughly 9% of them trucks, projected to reach 3,715 by 2041. The structure is 247 ft (75.3 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLA0350
CrossesBayou Teche Parks
Location0.36 MI NE of LA 31
RouteState Highway 350
CountySt. Martin Parish
StateLouisiana
Coordinates30.21714, -91.82719
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating42 US tons
Inventory rating21.1 US tons

Structure

Structure typeMovable - Lift
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+7 approach)
Design loadH 15
Structure length247 ft (75.3 m)
Longest span50 ft (15.2 m)
Deck width34 ft (10.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic3,378 (2021)
Projected traffic3,715 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.1 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was LA0350 over Bayou Teche Parks built?

It was built in 1950, making it 75 years old in 2025.

What condition is LA0350 over Bayou Teche Parks 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 September 2024.

How much traffic does LA0350 over Bayou Teche Parks carry?

About 3,378 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is LA0350 over Bayou Teche Parks?

The structure is 247 ft (75.3 m) long with a longest span of 50 ft (15.2 m) and a deck 34 ft wide.

Who owns LA0350 over Bayou Teche Parks?

It is owned by the State Highway Agency.