US Bridges

Redbird Rd. over Coulee

PoorPosted for load

Acadia Parish, Louisiana · 1.1 Mi. S. of Istre RD · Structure no. 030130066923091

Built
1965
60 years old, rebuilt 1999
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
47 ft
3 main spans
Daily traffic
24
2020 count
Owner
County
County Highway Agency

About this bridge

Redbird Rd. over Coulee is a wood or timber stringer/multi-beam or girder carrying Redbird Rd. over Coulee in Acadia Parish, Louisiana. It was built in 1965 and reconstructed in 1999, so it is 60 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 24 vehicles a day, projected to reach 26 by 2040. The structure is 47 ft (14.3 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRedbird Rd.
CrossesCoulee
Location1.1 Mi. S. of Istre RD
RouteCounty Highway 0
Coordinates30.11173, -92.5152
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 12 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating17.5 US tons
Inventory rating12.5 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 10
Structure length47 ft (14.3 m)
Longest span15 ft (4.6 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2020)
Projected traffic26 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$187,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Redbird Rd. over Coulee built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1999.

What condition is Redbird Rd. over Coulee 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 July 2024.

How much traffic does Redbird Rd. over Coulee carry?

About 24 vehicles per day (2020 count).

How long is Redbird Rd. over Coulee?

The structure is 47 ft (14.3 m) long with a longest span of 15 ft (4.6 m) and a deck 20 ft wide.

Who owns Redbird Rd. over Coulee?

It is owned by the County Highway Agency.