US Bridges

I-17 NB over Big Bug Creek

Good

Yavapai County, Arizona · 0.7 MI S JCT SR 69 · Structure no. 20027

Built
2012
13 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
272 ft
3 main spans
Daily traffic
12,286
2023 count
Owner
State
State Highway Agency

About this bridge

I-17 NB over Big Bug Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying I-17 NB over Big Bug Creek in Yavapai County, Arizona. It was built in 2012, so it is 13 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 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 12,286 vehicles a day, roughly 17% of them trucks, projected to reach 12,296 by 2042. The structure is 272 ft (82.9 m) long and 97 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-17 NB
CrossesBig Bug Creek
Location0.7 MI S JCT SR 69
RouteInterstate 17
CountyYavapai County
StateArizona
Coordinates34.3201, -112.1229
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
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 alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length272 ft (82.9 m)
Longest span90 ft (27.4 m)
Deck width97 ft (29.7 m)
Roadway width94 ft (28.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,286 (2023)
Projected traffic12,296 by 2042
Trucks17%
Lanes on structure4
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 NB over Big Bug Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is I-17 NB over Big Bug 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 October 2024.

How much traffic does I-17 NB over Big Bug Creek carry?

About 12,286 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is I-17 NB over Big Bug Creek?

The structure is 272 ft (82.9 m) long with a longest span of 90 ft (27.4 m) and a deck 97 ft wide.

Who owns I-17 NB over Big Bug Creek?

It is owned by the State Highway Agency.