US Bridges

I 17; SB over Rocky Park Road

Good

Coconino County, Arizona · 16.6 MI N JCT SR 179 · Structure no. 01653

Built
1976
49 years old
Condition
Good
inspected August 2024
Type
Frame
Concrete
Length
29 ft
1 main span
Daily traffic
12,085
2021 count
Owner
State
State Highway Agency

About this bridge

I 17; SB over Rocky Park Road is a concrete frame carrying I 17; SB over Rocky Park Road in Coconino County, Arizona. It was built in 1976, so it is 49 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,085 vehicles a day, roughly 24% of them trucks, projected to reach 12,095 by 2041. The structure is 29 ft (8.8 m) long and 45 ft wide.

Location

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CarriesI 17; SB
CrossesRocky Park Road
Location16.6 MI N JCT SR 179
RouteInterstate 17
CountyCoconino County
StateArizona
Coordinates34.853, -111.6072
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span25 ft (7.6 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,085 (2021)
Projected traffic12,095 by 2041
Trucks24%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 17; SB over Rocky Park Road built?

It was built in 1976, making it 49 years old in 2025.

What condition is I 17; SB over Rocky Park Road in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does I 17; SB over Rocky Park Road carry?

About 12,085 vehicles per day (2021 count), of which roughly 24% are trucks.

How long is I 17; SB over Rocky Park Road?

The structure is 29 ft (8.8 m) long with a longest span of 25 ft (7.6 m) and a deck 45 ft wide.

Who owns I 17; SB over Rocky Park Road?

It is owned by the State Highway Agency.