US Bridges

Fdr 523 over Cr. @ 523

Fair

Winn Parish, Louisiana · Logmi 1.17 FR 502 to · Structure no. 080604000002419

Built
1975
50 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
34 ft
2 main spans
Daily traffic
150
1975 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 523 over Cr. @ 523 is a prestressed concrete channel beam carrying Fdr 523 over Cr. @ 523 in Winn Parish, Louisiana. It was built in 1975, so it is 50 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 150 vehicles a day, roughly 30% of them trucks, projected to reach 225 by 2045. The structure is 34 ft (10.4 m) long and 25 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesFdr 523
CrossesCr. @ 523
LocationLogmi 1.17 FR 502 to
RouteFederal Lands Road 523.2
CountyWinn Parish
StateLouisiana
Coordinates31.93743, -92.82982
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.
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.9 US tons
Inventory rating16.8 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span17 ft (5.2 m)
Deck width25 ft (7.6 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (1975)
Projected traffic225 by 2045
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Fdr 523 over Cr. @ 523 built?

It was built in 1975, making it 50 years old in 2025.

What condition is Fdr 523 over Cr. @ 523 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 2024.

How much traffic does Fdr 523 over Cr. @ 523 carry?

About 150 vehicles per day (1975 count), of which roughly 30% are trucks.

How long is Fdr 523 over Cr. @ 523?

The structure is 34 ft (10.4 m) long with a longest span of 17 ft (5.2 m) and a deck 25 ft wide.

Who owns Fdr 523 over Cr. @ 523?

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