US Bridges

Willard ST over Silver Spring Gulch

Good

Yavapai County, Arizona · 0.7 MI S JCT SR 89A · Structure no. 11073

Built
2009
16 years old
Condition
Good
inspected September 2022
Type
Culvert
Concrete Continuous
Length
68 ft
6 main spans
Daily traffic
2,721
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Willard ST over Silver Spring Gulch is a concrete continuous culvert carrying Willard ST over Silver Spring Gulch in Yavapai County, Arizona. It was built in 2009, so it is 16 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 2,721 vehicles a day, roughly 2% of them trucks, projected to reach 2,731 by 2041. The structure is 68 ft (20.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWillard ST
CrossesSilver Spring Gulch
Location0.7 MI S JCT SR 89A
RouteCity Street 0
CountyYavapai County
StateArizona
Coordinates34.7238, -112.0293
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2022
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 rating79 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans6
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,721 (2021)
Projected traffic2,731 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Willard ST over Silver Spring Gulch built?

It was built in 2009, making it 16 years old in 2025.

What condition is Willard ST over Silver Spring Gulch 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 September 2022.

How much traffic does Willard ST over Silver Spring Gulch carry?

About 2,721 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Willard ST over Silver Spring Gulch?

The structure is 68 ft (20.7 m) long with a longest span of 10 ft (3 m).

Who owns Willard ST over Silver Spring Gulch?

It is owned by the City or Municipal Highway Agency.