US Bridges

Holbrook-Winslow R over Chevelon Creek

FairPosted for load

Navajo County, Arizona · 6.64 MI E JCT SR 99 · Structure no. 08158

Built
1913
112 years old, rebuilt 1930
Condition
Fair
inspected July 2024
Type
Truss - Thru
Steel
Length
103 ft
1 main span
Daily traffic
36
2024 count
Owner
County
County Highway Agency

About this bridge

Holbrook-Winslow R over Chevelon Creek is a steel truss - thru carrying Holbrook-Winslow R over Chevelon Creek in Navajo County, Arizona. It was built in 1913 and reconstructed in 1930, so it is 112 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. Its operating status is: posted for load restriction.

It carries about 36 vehicles a day, projected to reach 46 by 2042. The structure is 103 ft (31.4 m) long and 14 ft wide. If it were closed, the detour would be 54.1 mi (87 km).

Location

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CarriesHolbrook-Winslow R
CrossesChevelon Creek
Location6.64 MI E JCT SR 99
RouteCounty Highway 0
CountyNavajo County
StateArizona
Coordinates34.9231, -110.5292
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating22 US tons
Inventory rating13 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length103 ft (31.4 m)
Longest span102 ft (31.1 m)
Deck width14 ft (4.2 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2024)
Projected traffic46 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed54.1 mi (87 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Holbrook-Winslow R over Chevelon Creek built?

It was built in 1913, making it 112 years old in 2025. It was reconstructed in 1930.

What condition is Holbrook-Winslow R over Chevelon 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 July 2024.

How much traffic does Holbrook-Winslow R over Chevelon Creek carry?

About 36 vehicles per day (2024 count).

How long is Holbrook-Winslow R over Chevelon Creek?

The structure is 103 ft (31.4 m) long with a longest span of 102 ft (31.1 m) and a deck 14 ft wide.

Who owns Holbrook-Winslow R over Chevelon Creek?

It is owned by the County Highway Agency.