US Bridges

Dark Star Road over Wash

Good

Cochise County, Arizona · 0.1 MI W JCT SR 90 · Structure no. 10944

Built
2010
15 years old
Condition
Good
inspected May 2021
Type
Culvert
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
500
2021 count
Owner
County
County Highway Agency

About this bridge

Dark Star Road over Wash is a concrete continuous culvert carrying Dark Star Road over Wash in Cochise 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 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 500 vehicles a day, projected to reach 510 by 2041. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesDark Star Road
CrossesWash
Location0.1 MI W JCT SR 90
RouteCounty Highway 0
CountyCochise County
StateArizona
Coordinates31.96809, -110.34975
Functional classRural Minor 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 inspectionMay 2021
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 length45 ft (13.7 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 traffic500 (2021)
Projected traffic510 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Dark Star Road over Wash built?

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

What condition is Dark Star Road over 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 May 2021.

How much traffic does Dark Star Road over Wash carry?

About 500 vehicles per day (2021 count).

How long is Dark Star Road over Wash?

The structure is 45 ft (13.7 m) long with a longest span of 10 ft (3 m).

Who owns Dark Star Road over Wash?

It is owned by the County Highway Agency.