US Bridges

Cottongin Castor over Mitchell Creek

Fair

Allen Parish, Louisiana · 0.4 MI E of Hebert Rd. · Structure no. 070230384923921

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
131
2019 count
Owner
County
County Highway Agency

About this bridge

Cottongin Castor over Mitchell Creek is a concrete slab carrying Cottongin Castor over Mitchell Creek in Allen Parish, Louisiana. It was built in 1985, so it is 40 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 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 131 vehicles a day, projected to reach 144 by 2039. The structure is 76 ft (23.2 m) long and 27 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesCottongin Castor
CrossesMitchell Creek
Location0.4 MI E of Hebert Rd.
RouteCounty Highway 0
CountyAllen Parish
StateLouisiana
Coordinates30.64075, -92.65374
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating40.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic131 (2019)
Projected traffic144 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Cottongin Castor over Mitchell Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Cottongin Castor over Mitchell Creek 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 Cottongin Castor over Mitchell Creek carry?

About 131 vehicles per day (2019 count).

How long is Cottongin Castor over Mitchell Creek?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Cottongin Castor over Mitchell Creek?

It is owned by the County Highway Agency.