US Bridges

White Spar DR over Granite Creek

Good

Yavapai County, Arizona · 2.2 MI S JCT SR 69 · Structure no. 10360

Built
1950
75 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
57 ft
3 main spans
Daily traffic
9,708
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

White Spar DR over Granite Creek is a concrete continuous culvert carrying White Spar DR over Granite Creek in Yavapai County, Arizona. It was built in 1950, so it is 75 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 9,708 vehicles a day, roughly 6% of them trucks, projected to reach 9,718 by 2039. The structure is 57 ft (17.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesWhite Spar DR
CrossesGranite Creek
Location2.2 MI S JCT SR 69
RouteCity Street 0
StateArizona
Coordinates34.5302, -112.4736
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic9,708 (2019)
Projected traffic9,718 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 White Spar DR over Granite Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is White Spar DR over Granite 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 August 2023.

How much traffic does White Spar DR over Granite Creek carry?

About 9,708 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is White Spar DR over Granite Creek?

The structure is 57 ft (17.4 m) long with a longest span of 12 ft (3.7 m).

Who owns White Spar DR over Granite Creek?

It is owned by the City or Municipal Highway Agency.