US Bridges

Bayou Jack RD over Bayou Jack

PoorPosted for load

St. Landry Parish, Louisiana · 2.14 MI SE of LA 107 · Structure no. 034930499915621

Built
1978
47 years old
Condition
Poor
inspected January 2024
Type
Slab
Concrete
Length
266 ft
14 main spans
Daily traffic
160
2020 count
Owner
County
County Highway Agency

About this bridge

Bayou Jack RD over Bayou Jack is a concrete slab carrying Bayou Jack RD over Bayou Jack in St. Landry Parish, Louisiana. It was built in 1978, so it is 47 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 160 vehicles a day, projected to reach 176 by 2040. The structure is 266 ft (81.1 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesBayou Jack RD
CrossesBayou Jack
Location2.14 MI SE of LA 107
RouteCounty Highway 0
CountySt. Landry Parish
StateLouisiana
Coordinates30.81611, -91.94481
Functional classRural Local

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
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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating20.7 US tons
Inventory rating16.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans14
Design loadHS 20
Structure length266 ft (81.1 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2020)
Projected traffic176 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$810,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bayou Jack RD over Bayou Jack built?

It was built in 1978, making it 47 years old in 2025.

What condition is Bayou Jack RD over Bayou Jack 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 January 2024.

How much traffic does Bayou Jack RD over Bayou Jack carry?

About 160 vehicles per day (2020 count).

How long is Bayou Jack RD over Bayou Jack?

The structure is 266 ft (81.1 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns Bayou Jack RD over Bayou Jack?

It is owned by the County Highway Agency.