US Bridges

Lyons RD over Bayou Chene

FairPosted for load

Jefferson Davis Parish, Louisiana · 0.7 MI S of LA 1126 · Structure no. 072730104924341

Built
1978
47 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
100 ft
4 main spans
Daily traffic
80
2019 count
Owner
County
County Highway Agency

About this bridge

Lyons RD over Bayou Chene is a prestressed concrete channel beam carrying Lyons RD over Bayou Chene in Jefferson Davis 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 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. Its operating status is: posted for load restriction.

It carries about 80 vehicles a day, projected to reach 88 by 2039. The structure is 100 ft (30.5 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLyons RD
CrossesBayou Chene
Location0.7 MI S of LA 1126
RouteCounty Highway 0
CountyJefferson Davis Parish
StateLouisiana
Coordinates30.17488, -92.72355
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.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 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 alignment7: Better than present minimum criteria
Operating rating23.3 US tons
Inventory rating12.5 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span25 ft (7.6 m)
Deck width22 ft (6.7 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2019)
Projected traffic88 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lyons RD over Bayou Chene built?

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

What condition is Lyons RD over Bayou Chene 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 Lyons RD over Bayou Chene carry?

About 80 vehicles per day (2019 count).

How long is Lyons RD over Bayou Chene?

The structure is 100 ft (30.5 m) long with a longest span of 25 ft (7.6 m) and a deck 22 ft wide.

Who owns Lyons RD over Bayou Chene?

It is owned by the County Highway Agency.