US Bridges

SB 40 over Drainage Wash

Good

Yavapai County, Arizona · 0.3 MI N of JCT I 40 · Structure no. 06730

Built
1978
47 years old
Condition
Good
inspected June 2022
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
1,117
2020 count
Owner
State
State Highway Agency

About this bridge

SB 40 over Drainage Wash is a concrete continuous culvert carrying SB 40 over Drainage Wash in Yavapai County, Arizona. It was built in 1978, so it is 47 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 1,117 vehicles a day, roughly 7% of them trucks, projected to reach 1,127 by 2040. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSB 40
CrossesDrainage Wash
Location0.3 MI N of JCT I 40
RouteState Highway 40
CountyYavapai County
StateArizona
Coordinates35.3236, -112.8914
Functional classRural Major 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 inspectionJune 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 rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 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 traffic1,117 (2020)
Projected traffic1,127 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 SB 40 over Drainage Wash built?

It was built in 1978, making it 47 years old in 2025.

What condition is SB 40 over Drainage Wash 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 June 2022.

How much traffic does SB 40 over Drainage Wash carry?

About 1,117 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is SB 40 over Drainage Wash?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns SB 40 over Drainage Wash?

It is owned by the State Highway Agency.