US Bridges

Zenor Bridge RD over Teche Bayou

FairPosted for load

St. Mary Parish, Louisiana · 0.05 MI NW of LA 182 · Structure no. 035129425912111

Built
1969
56 years old
Condition
Fair
inspected April 2023
Type
Movable - Swing
Steel
Length
546 ft
2 main spans
Daily traffic
200
2022 count
Owner
County
County Highway Agency

About this bridge

Zenor Bridge RD over Teche Bayou is a steel movable - swing carrying Zenor Bridge RD over Teche Bayou in St. Mary Parish, Louisiana. It was built in 1969, so it is 56 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 200 vehicles a day, projected to reach 220 by 2042. The structure is 546 ft (166.4 m) long and 30 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesZenor Bridge RD
CrossesTeche Bayou
Location0.05 MI NW of LA 182
RouteCounty Highway 0
CountySt. Mary Parish
StateLouisiana
Coordinates29.70802, -91.35043
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeMovable - Swing
MaterialSteel
DeckOpen grating
Main spans2 (+18 approach)
Design loadH 15
Structure length546 ft (166.4 m)
Longest span180 ft (54.9 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck16 ft (5 m)

Traffic and service

Average daily traffic200 (2022)
Projected traffic220 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Zenor Bridge RD over Teche Bayou built?

It was built in 1969, making it 56 years old in 2025.

What condition is Zenor Bridge RD over Teche Bayou 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 Zenor Bridge RD over Teche Bayou carry?

About 200 vehicles per day (2022 count).

How long is Zenor Bridge RD over Teche Bayou?

The structure is 546 ft (166.4 m) long with a longest span of 180 ft (54.9 m) and a deck 30 ft wide.

Who owns Zenor Bridge RD over Teche Bayou?

It is owned by the County Highway Agency.