US Bridges

Cornville Road over I-17

Fair

Yavapai County, Arizona · 5.7 MI S JCT SR 179 · Structure no. 00652

Built
1961
64 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
257 ft
4 main spans
Daily traffic
5,790
2022 count
Owner
State
State Highway Agency

About this bridge

Cornville Road over I-17 is a steel continuous stringer/multi-beam or girder carrying Cornville Road over I-17 in Yavapai County, Arizona. It was built in 1961, so it is 64 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 5 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 5,790 vehicles a day, roughly 5% of them trucks, projected to reach 5,800 by 2042. The structure is 257 ft (78.3 m) long and 35 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesCornville Road
CrossesI-17
Location5.7 MI S JCT SR 179
RouteCounty Highway 0
CountyYavapai County
StateArizona
Coordinates34.6385, -111.8173
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length257 ft (78.3 m)
Longest span84 ft (25.6 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,790 (2022)
Projected traffic5,800 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cornville Road over I-17 built?

It was built in 1961, making it 64 years old in 2025.

What condition is Cornville Road over I-17 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 I-17 carry?

About 5,790 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Cornville Road over I-17?

The structure is 257 ft (78.3 m) long with a longest span of 84 ft (25.6 m) and a deck 35 ft wide.

Who owns Cornville Road over I-17?

It is owned by the State Highway Agency.