Sweetwater RD over Drain to Cypress Bayou

Fair

Jackson Parish, Louisiana · 1.6 Mi. Sw. Int. 336 · Structure no. 052532208924191

Built: 1985; 40 years old
Condition: Fair; inspected February 2024
Type: Slab; Concrete
Length: 57 ft; 3 main spans
Daily traffic: 380; 2020 count
Owner: County; County Highway Agency

About this bridge

Sweetwater RD over Drain to Cypress Bayou is a concrete slab carrying Sweetwater RD over Drain to Cypress Bayou in Jackson 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 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 380 vehicles a day, projected to reach 418 by 2040. The structure is 57 ft (17.4 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSweetwater RD

CrossesDrain to Cypress Bayou

Location1.6 Mi. Sw. Int. 336

RouteCounty Highway 0

CountyJackson Parish

StateLouisiana

Coordinates32.34607, -92.69968

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.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionFebruary 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating40.7 US tons

Inventory rating31.4 US tons

Structure

Structure typeSlab

MaterialConcrete

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length57 ft (17.4 m)

Longest span19 ft (5.8 m)

Deck width31 ft (9.4 m)

Roadway width28 ft (8.4 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic380 (2020)

Projected traffic418 by 2040

Trucks—

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed1.2 mi (2 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 Sweetwater RD over Drain to Cypress Bayou built?

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

What condition is Sweetwater RD over Drain to Cypress 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 February 2024.

How much traffic does Sweetwater RD over Drain to Cypress Bayou carry?

About 380 vehicles per day (2020 count).

How long is Sweetwater RD over Drain to Cypress Bayou?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Sweetwater RD over Drain to Cypress Bayou?

It is owned by the County Highway Agency.