US Bridges

SR 179 over Oak Creek

Good

Coconino County, Arizona · 0.34 MI S JCT SR89A · Structure no. 02850

Built
2010
15 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
169 ft
3 main spans
Daily traffic
18,956
2022 count
Owner
State
State Highway Agency

About this bridge

SR 179 over Oak Creek is a prestressed concrete continuous box beam or girders - multiple carrying SR 179 over Oak Creek in Coconino County, Arizona. It was built in 2010, so it is 15 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 18,956 vehicles a day, roughly 37% of them trucks, projected to reach 18,966 by 2042. The structure is 169 ft (51.5 m) long and 73 ft wide. If it were closed, the detour would be 41 mi (66 km).

Location

Open in Google Maps
CarriesSR 179
CrossesOak Creek
Location0.34 MI S JCT SR89A
RouteState Highway 179
CountyCoconino County
StateArizona
Coordinates34.86222, -111.76181
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating68 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length169 ft (51.5 m)
Longest span56 ft (17.1 m)
Deck width73 ft (22.2 m)
Roadway width71 ft (21.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,956 (2022)
Projected traffic18,966 by 2042
Trucks37%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed41 mi (66 km)
TollOn a free road
National Highway SystemYes

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 SR 179 over Oak Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is SR 179 over Oak Creek 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 July 2023.

How much traffic does SR 179 over Oak Creek carry?

About 18,956 vehicles per day (2022 count), of which roughly 37% are trucks.

How long is SR 179 over Oak Creek?

The structure is 169 ft (51.5 m) long with a longest span of 56 ft (17.1 m) and a deck 73 ft wide.

Who owns SR 179 over Oak Creek?

It is owned by the State Highway Agency.