US Bridges

Prk Road over Slough

FairPosted for load

Livingston Parish, Louisiana · 1.1 Mi. South of LA 1037 · Structure no. 623200000620256

Built
1997
28 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
285 ft
15 main spans
Daily traffic
—
2016 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Prk Road over Slough is a concrete slab carrying Prk Road over Slough in Livingston Parish, Louisiana. It was built in 1997, so it is 28 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. Its operating status is: posted for load restriction.

No traffic count is recorded. The structure is 285 ft (86.9 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesPrk Road
CrossesSlough
Location1.1 Mi. South of LA 1037
RouteCounty Highway 0
CountyLivingston Parish
StateLouisiana
Coordinates30.382, -90.6342
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25 US tons
Inventory rating19.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans15
Design loadHS 20
Structure length285 ft (86.9 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 traffic—
Projected traffic—
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

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 Prk Road over Slough built?

It was built in 1997, making it 28 years old in 2025.

What condition is Prk Road over Slough 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 April 2024.

How much traffic does Prk Road over Slough carry?

No traffic count is recorded for this structure.

How long is Prk Road over Slough?

The structure is 285 ft (86.9 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.

Who owns Prk Road over Slough?

It is owned by the State Park, Forest, or Reservation Agency.