US Bridges

I 17; SB over Woods Canyon

Good

Coconino County, Arizona · 18.0 MI N JCT SR 179 · Structure no. 01654

Built
1976
49 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
186 ft
3 main spans
Daily traffic
11,735
2022 count
Owner
State
State Highway Agency

About this bridge

I 17; SB over Woods Canyon is a steel continuous stringer/multi-beam or girder carrying I 17; SB over Woods Canyon 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 11,735 vehicles a day, roughly 17% of them trucks, projected to reach 11,745 by 2042. The structure is 186 ft (56.7 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 17; SB
CrossesWoods Canyon
Location18.0 MI N JCT SR 179
RouteInterstate 17
CountyCoconino County
StateArizona
Coordinates34.8699, -111.6308
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length186 ft (56.7 m)
Longest span76 ft (23.2 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,735 (2022)
Projected traffic11,745 by 2042
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 17; SB over Woods Canyon built?

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

What condition is I 17; SB over Woods Canyon 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 2023.

How much traffic does I 17; SB over Woods Canyon carry?

About 11,735 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is I 17; SB over Woods Canyon?

The structure is 186 ft (56.7 m) long with a longest span of 76 ft (23.2 m) and a deck 45 ft wide.

Who owns I 17; SB over Woods Canyon?

It is owned by the State Highway Agency.