US Bridges

Prospect RD over Unnamed Creek

Fair

Sabine Parish, Louisiana · App. 2.5 Mi. E. of LA 191 · Structure no. 084331210933141

Built
1984
41 years old
Condition
Fair
inspected February 2023
Type
Culvert
Steel
Length
28 ft
3 main spans
Daily traffic
130
2022 count
Owner
County
County Highway Agency

About this bridge

Prospect RD over Unnamed Creek is a steel culvert carrying Prospect RD over Unnamed Creek in Sabine Parish, Louisiana. It was built in 1984, so it is 41 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 130 vehicles a day, projected to reach 143 by 2042. The structure is 28 ft (8.5 m) long and 120 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesProspect RD
CrossesUnnamed Creek
LocationApp. 2.5 Mi. E. of LA 191
RouteCounty Highway 0
CountySabine Parish
StateLouisiana
Coordinates31.34981, -93.5245
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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating77.8 US tons
Inventory rating60 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span7 ft (2.1 m)
Deck width120 ft (36.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2022)
Projected traffic143 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$130,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Prospect RD over Unnamed Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Prospect RD over Unnamed 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 February 2023.

How much traffic does Prospect RD over Unnamed Creek carry?

About 130 vehicles per day (2022 count).

How long is Prospect RD over Unnamed Creek?

The structure is 28 ft (8.5 m) long with a longest span of 7 ft (2.1 m) and a deck 120 ft wide.

Who owns Prospect RD over Unnamed Creek?

It is owned by the County Highway Agency.