US Bridges

Third Street over Bayou

Fair

Jefferson Davis Parish, Louisiana · 0.6 MI E of LA 26 · Structure no. 072730050923971

Built
1968
57 years old, rebuilt 2012
Condition
Fair
inspected July 2024
Type
Channel Beam
Concrete
Length
40 ft
2 main spans
Daily traffic
1,790
2019 count
Owner
County
County Highway Agency

About this bridge

Third Street over Bayou is a concrete channel beam carrying Third Street over Bayou in Jefferson Davis Parish, Louisiana. It was built in 1968 and reconstructed in 2012, so it is 57 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 5 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 1,790 vehicles a day, projected to reach 1,969 by 2039. The structure is 40 ft (12.2 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesThird Street
CrossesBayou
Location0.6 MI E of LA 26
RouteCounty Highway 0
CountyJefferson Davis Parish
StateLouisiana
Coordinates30.08273, -92.6622
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating43.2 US tons
Inventory rating24.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span20 ft (6.1 m)
Deck width22 ft (6.8 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,790 (2019)
Projected traffic1,969 by 2039
Trucks—
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

OwnerCounty Highway Agency
Maintained byCounty 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$168,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Third Street over Bayou built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2012.

What condition is Third Street over 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 July 2024.

How much traffic does Third Street over Bayou carry?

About 1,790 vehicles per day (2019 count).

How long is Third Street over Bayou?

The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6.1 m) and a deck 22 ft wide.

Who owns Third Street over Bayou?

It is owned by the County Highway Agency.