US Bridges

I-10 EB Frnt RD over Earp Wash

Good

Pima County, Arizona · 7.3 MI E JCT I-19 · Structure no. 06814

Built
1986
39 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
550
2020 count
Owner
State
State Highway Agency

About this bridge

I-10 EB Frnt RD over Earp Wash is a concrete continuous culvert carrying I-10 EB Frnt RD over Earp Wash in Pima County, Arizona. It was built in 1986, so it is 39 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 550 vehicles a day, roughly 5% of them trucks, projected to reach 560 by 2040. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-10 EB Frnt RD
CrossesEarp Wash
Location7.3 MI E JCT I-19
RouteState Highway 10
CountyPima County
StateArizona
Coordinates32.1286, -110.8811
Functional classRural Local

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 inspectionNovember 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 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 traffic550 (2020)
Projected traffic560 by 2040
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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-10 EB Frnt RD over Earp Wash built?

It was built in 1986, making it 39 years old in 2025.

What condition is I-10 EB Frnt RD over Earp 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 November 2021.

How much traffic does I-10 EB Frnt RD over Earp Wash carry?

About 550 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is I-10 EB Frnt RD over Earp Wash?

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

Who owns I-10 EB Frnt RD over Earp Wash?

It is owned by the State Highway Agency.