US Bridges

Cornville Road over Oak Creek

Fair

Yavapai County, Arizona · 3.7 MI E JCT SR 89A · Structure no. 09100

Built
1962
63 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
348 ft
4 main spans
Daily traffic
8,797
2022 count
Owner
County
County Highway Agency

About this bridge

Cornville Road over Oak Creek is a steel continuous stringer/multi-beam or girder carrying Cornville Road over Oak Creek in Yavapai County, Arizona. It was built in 1962, so it is 63 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 8,797 vehicles a day, roughly 5% of them trucks, projected to reach 8,807 by 2042. The structure is 348 ft (106.1 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesCornville Road
CrossesOak Creek
Location3.7 MI E JCT SR 89A
RouteCounty Highway 0
CountyYavapai County
StateArizona
Coordinates34.71786, -111.91646
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length348 ft (106.1 m)
Longest span97 ft (29.6 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,797 (2022)
Projected traffic8,807 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cornville Road over Oak Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is Cornville Road over Oak 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 2023.

How much traffic does Cornville Road over Oak Creek carry?

About 8,797 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Cornville Road over Oak Creek?

The structure is 348 ft (106.1 m) long with a longest span of 97 ft (29.6 m) and a deck 33 ft wide.

Who owns Cornville Road over Oak Creek?

It is owned by the County Highway Agency.