US Bridges

LA0027 over Dinde Bayou

Poor

Calcasieu Parish, Louisiana · 1.2 MI S of US 90 · Structure no. 071008102702452

Built
1960
65 years old
Condition
Poor
inspected March 2024
Type
Slab
Concrete
Length
114 ft
6 main spans
Daily traffic
14,973
2022 count
Owner
State
State Highway Agency

About this bridge

LA0027 over Dinde Bayou is a concrete slab carrying LA0027 over Dinde Bayou in Calcasieu Parish, Louisiana. It was built in 1960, so it is 65 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.

It carries about 14,973 vehicles a day, roughly 10% of them trucks, projected to reach 16,470 by 2042. The structure is 114 ft (34.7 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLA0027
CrossesDinde Bayou
Location1.2 MI S of US 90
RouteState Highway 27
Coordinates30.21907, -93.35864
Functional classUrban Minor Arterial

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span19 ft (5.8 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,973 (2022)
Projected traffic16,470 by 2042
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$556,000
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0027 over Dinde Bayou built?

It was built in 1960, making it 65 years old in 2025.

What condition is LA0027 over Dinde Bayou 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 March 2024.

How much traffic does LA0027 over Dinde Bayou carry?

About 14,973 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is LA0027 over Dinde Bayou?

The structure is 114 ft (34.7 m) long with a longest span of 19 ft (5.8 m) and a deck 34 ft wide.

Who owns LA0027 over Dinde Bayou?

It is owned by the State Highway Agency.