US Bridges

Fdr 560 over S Fork Little Colorado

Fair

Apache County, Arizona · 35 Yd W/O RD 560 Int · Structure no. 030106000003299

Built
1950
75 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
150
2021 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 560 over S Fork Little Colorado is a concrete slab carrying Fdr 560 over S Fork Little Colorado in Apache County, Arizona. It was built in 1950, so it is 75 years old, older than the Arizona average of 47.8 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 150 vehicles a day, roughly 5% of them trucks, projected to reach 200 by 2040. The structure is 27 ft (8.3 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesFdr 560
CrossesS Fork Little Colorado
Location35 Yd W/O RD 560 Int
RouteFederal Lands Road 560A
CountyApache County
StateArizona
Coordinates34.0804, -109.41269
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length27 ft (8.3 m)
Longest span24 ft (7.4 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2021)
Projected traffic200 by 2040
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$218,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 560 over S Fork Little Colorado built?

It was built in 1950, making it 75 years old in 2025.

What condition is Fdr 560 over S Fork Little Colorado 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 560 over S Fork Little Colorado carry?

About 150 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Fdr 560 over S Fork Little Colorado?

The structure is 27 ft (8.3 m) long with a longest span of 24 ft (7.4 m) and a deck 16 ft wide.

Who owns Fdr 560 over S Fork Little Colorado?

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