Rockshop RD over Cypress Bayou

Fair

Lincoln Parish, Louisiana · 0.4 MI NW of US 167 · Structure no. 053132371923911

Built: 2003; 22 years old
Condition: Fair; inspected October 2023
Type: Slab; Concrete
Length: 177 ft; 9 main spans
Daily traffic: 500; 2001 count
Owner: County; County Highway Agency

About this bridge

Rockshop RD over Cypress Bayou is a concrete slab carrying Rockshop RD over Cypress Bayou in Lincoln Parish, Louisiana. It was built in 2003, so it is 22 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 500 vehicles a day, projected to reach 550 by 2021. The structure is 177 ft (53.9 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesRockshop RD

CrossesCypress Bayou

Location0.4 MI NW of US 167

RouteCounty Highway 0

CountyLincoln Parish

StateLouisiana

Coordinates32.61805, -92.65211

Functional classRural Minor Arterial

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	7 Good	Some minor problems.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionOctober 2023

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 rating50.7 US tons

Inventory rating39.2 US tons

Structure

Structure typeSlab

MaterialConcrete

DeckConcrete, cast-in-place

Main spans9

Design loadHS 20

Structure length177 ft (53.9 m)

Longest span20 ft (6.1 m)

Deck width31 ft (9.3 m)

Roadway width28 ft (8.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2001)

Projected traffic550 by 2021

Trucks—

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed98.8 mi (159 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—

NavigationNot applicable (no waterway)

Frequently asked questions

When was Rockshop RD over Cypress Bayou built?

It was built in 2003, making it 22 years old in 2025.

What condition is Rockshop RD over 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 October 2023.

How much traffic does Rockshop RD over Cypress Bayou carry?

About 500 vehicles per day (2001 count).

How long is Rockshop RD over Cypress Bayou?

The structure is 177 ft (53.9 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Rockshop RD over Cypress Bayou?

It is owned by the County Highway Agency.