US Bridges

Jeff Deblanc Pkwy over Teche Bayou

Fair

St. Martin Parish, Louisiana · 0.4 MI E of LA 31 · Structure no. 035030099914881

Built
2001
24 years old
Condition
Fair
inspected October 2024
Type
Movable - Swing
Steel
Length
343 ft
11 main spans
Daily traffic
3,818
2020 count
Owner
County
County Highway Agency

About this bridge

Jeff Deblanc Pkwy over Teche Bayou is a steel movable - swing carrying Jeff Deblanc Pkwy over Teche Bayou in St. Martin Parish, Louisiana. It was built in 2001, so it is 24 years old, younger 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.

It carries about 3,818 vehicles a day, projected to reach 4,199 by 2040. The structure is 343 ft (104.5 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesJeff Deblanc Pkwy
CrossesTeche Bayou
Location0.4 MI E of LA 31
RouteCounty Highway 0
CountySt. Martin Parish
StateLouisiana
Coordinates30.16509, -91.81386
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating25.4 US tons

Structure

Structure typeMovable - Swing
MaterialSteel
DeckOpen grating
Main spans11
Design loadHS 20
Structure length343 ft (104.5 m)
Longest span143 ft (43.6 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,818 (2020)
Projected traffic4,199 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Jeff Deblanc Pkwy over Teche Bayou built?

It was built in 2001, making it 24 years old in 2025.

What condition is Jeff Deblanc Pkwy 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 October 2024.

How much traffic does Jeff Deblanc Pkwy over Teche Bayou carry?

About 3,818 vehicles per day (2020 count).

How long is Jeff Deblanc Pkwy over Teche Bayou?

The structure is 343 ft (104.5 m) long with a longest span of 143 ft (43.6 m) and a deck 35 ft wide.

Who owns Jeff Deblanc Pkwy over Teche Bayou?

It is owned by the County Highway Agency.