US Bridges

471 Fdr over Tighteye Creek

Fair

Vernon Parish, Louisiana · 7.5 M. Wnw. of Crave · Structure no. 080605000002548

Built
1970
55 years old
Condition
Fair
inspected March 2023
Type
Channel Beam
Prestressed Concrete
Length
60 ft
3 main spans
Daily traffic
80
1976 count
Owner
Federal
U.S. Forest Service

About this bridge

471 Fdr over Tighteye Creek is a prestressed concrete channel beam carrying 471 Fdr over Tighteye Creek in Vernon Parish, Louisiana. It was built in 1970, so it is 55 years old, older 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 5 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 80 vehicles a day, projected to reach 120 by 2045. The structure is 60 ft (18.3 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
Carries471 Fdr
CrossesTighteye Creek
Location7.5 M. Wnw. of Crave
RouteFederal Lands Road 471.6
CountyVernon Parish
StateLouisiana
Coordinates30.99139, -93.15666
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.2 US tons
Inventory rating20 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width25 ft (7.6 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (1976)
Projected traffic120 by 2045
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

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 471 Fdr over Tighteye Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is 471 Fdr over Tighteye 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 March 2023.

How much traffic does 471 Fdr over Tighteye Creek carry?

About 80 vehicles per day (1976 count).

How long is 471 Fdr over Tighteye Creek?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 25 ft wide.

Who owns 471 Fdr over Tighteye Creek?

It is owned by the U.S. Forest Service.