US Bridges

LA1206 over Cainey Bayou

Fair

Rapides Parish, Louisiana · 1.05 Mi. E of LA115 · Structure no. 084008400101051

Built
1939
86 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
40 ft
2 main spans
Daily traffic
1,042
2021 count
Owner
State
State Highway Agency

About this bridge

LA1206 over Cainey Bayou is a wood or timber stringer/multi-beam or girder carrying LA1206 over Cainey Bayou in Rapides Parish, Louisiana. It was built in 1939, so it is 86 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 1,042 vehicles a day, roughly 10% of them trucks, projected to reach 1,146 by 2041. The structure is 40 ft (12.2 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLA1206
CrossesCainey Bayou
Location1.05 Mi. E of LA115
RouteState Highway 1206
CountyRapides Parish
StateLouisiana
Coordinates31.33772, -92.1474
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 10
Structure length40 ft (12.2 m)
Longest span19 ft (5.8 m)
Deck width22 ft (6.8 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,042 (2021)
Projected traffic1,146 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$241,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1206 over Cainey Bayou built?

It was built in 1939, making it 86 years old in 2025.

What condition is LA1206 over Cainey 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 December 2024.

How much traffic does LA1206 over Cainey Bayou carry?

About 1,042 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is LA1206 over Cainey Bayou?

The structure is 40 ft (12.2 m) long with a longest span of 19 ft (5.8 m) and a deck 22 ft wide.

Who owns LA1206 over Cainey Bayou?

It is owned by the State Highway Agency.