US Bridges

Windham RD over Clear Prong

Good

La Salle Parish, Louisiana · Log Mile 0.54 from 146 to · Structure no. 583031387921191

Built
2007
18 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
50
2005 count
Owner
County
County Highway Agency

About this bridge

Windham RD over Clear Prong is a concrete culvert carrying Windham RD over Clear Prong in La Salle Parish, Louisiana. It was built in 2007, so it is 18 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 55 by 2025. The structure is 25 ft (7.6 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWindham RD
CrossesClear Prong
LocationLog Mile 0.54 from 146 to
RouteCounty Highway 0
Coordinates31.67187, -92.12068
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span7 ft (2.1 m)
Deck width42 ft (12.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2005)
Projected traffic55 by 2025
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Windham RD over Clear Prong built?

It was built in 2007, making it 18 years old in 2025.

What condition is Windham RD over Clear Prong in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Windham RD over Clear Prong carry?

About 50 vehicles per day (2005 count).

How long is Windham RD over Clear Prong?

The structure is 25 ft (7.6 m) long with a longest span of 7 ft (2.1 m) and a deck 42 ft wide.

Who owns Windham RD over Clear Prong?

It is owned by the County Highway Agency.