US Bridges

Fdr 605 over Dry Choctaw Cr. Trib.

Fair

Natchitoches Parish, Louisiana · 1.5 Mi. N/N.E. of Chestnt · Structure no. 080604000002486

Built
1970
55 years old
Condition
Fair
inspected January 2023
Type
Channel Beam
Prestressed Concrete
Length
38 ft
2 main spans
Daily traffic
30
1996 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 605 over Dry Choctaw Cr. Trib. is a prestressed concrete channel beam carrying Fdr 605 over Dry Choctaw Cr. Trib. in Natchitoches 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 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 30 vehicles a day, projected to reach 45 by 2045. The structure is 38 ft (11.6 m) long and 17 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesFdr 605
CrossesDry Choctaw Cr. Trib.
Location1.5 Mi. N/N.E. of Chestnt
RouteFederal Lands Road 605.8
CountyNatchitoches Parish
StateLouisiana
Coordinates32.07138, -92.99829
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating16.4 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width17 ft (5.1 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (1996)
Projected traffic45 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 605 over Dry Choctaw Cr. Trib. built?

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

What condition is Fdr 605 over Dry Choctaw Cr. Trib. 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 January 2023.

How much traffic does Fdr 605 over Dry Choctaw Cr. Trib. carry?

About 30 vehicles per day (1996 count).

How long is Fdr 605 over Dry Choctaw Cr. Trib.?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 17 ft wide.

Who owns Fdr 605 over Dry Choctaw Cr. Trib.?

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