US Bridges

FSR 618 over Walker Creek

Fair

Yavapai County, Arizona · .8 MI Se/O Lawrence X Cg · Structure no. 030401000004108

Built
1955
70 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
46 ft
2 main spans
Daily traffic
100
2021 count
Owner
Federal
U.S. Forest Service

About this bridge

FSR 618 over Walker Creek is a concrete box beam or girders - multiple carrying FSR 618 over Walker Creek in Yavapai County, Arizona. It was built in 1955, so it is 70 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 125 by 2040. The structure is 46 ft (14 m) long and 16 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesFSR 618
CrossesWalker Creek
Location.8 MI Se/O Lawrence X Cg
RouteFederal Lands Road 618
CountyYavapai County
StateArizona
Coordinates34.64802, -111.7206
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating23.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length46 ft (14 m)
Longest span23 ft (6.9 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2021)
Projected traffic125 by 2040
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$180,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FSR 618 over Walker Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is FSR 618 over Walker 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 August 2023.

How much traffic does FSR 618 over Walker Creek carry?

About 100 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FSR 618 over Walker Creek?

The structure is 46 ft (14 m) long with a longest span of 23 ft (6.9 m) and a deck 16 ft wide.

Who owns FSR 618 over Walker Creek?

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