US Bridges

Cotton Island RD over Flagon Bayou

Fair

Rapides Parish, Louisiana · 4 MI North of Holloway · Structure no. 084031268921521

Built
2005
20 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
181 ft
9 main spans
Daily traffic
200
2022 count
Owner
County
County Highway Agency

About this bridge

Cotton Island RD over Flagon Bayou is a concrete slab carrying Cotton Island RD over Flagon Bayou in Rapides Parish, Louisiana. It was built in 2005, so it is 20 years old, younger 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 6 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 200 vehicles a day, projected to reach 220 by 2042. The structure is 181 ft (55.2 m) long and 27 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

Location

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CarriesCotton Island RD
CrossesFlagon Bayou
Location4 MI North of Holloway
RouteCounty Highway 0
CountyRapides Parish
StateLouisiana
Coordinates31.44918, -92.2514
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans9
Design loadHS 20
Structure length181 ft (55.2 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.2 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic220 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cotton Island RD over Flagon Bayou built?

It was built in 2005, making it 20 years old in 2025.

What condition is Cotton Island RD over Flagon 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 September 2023.

How much traffic does Cotton Island RD over Flagon Bayou carry?

About 200 vehicles per day (2022 count).

How long is Cotton Island RD over Flagon Bayou?

The structure is 181 ft (55.2 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns Cotton Island RD over Flagon Bayou?

It is owned by the County Highway Agency.