US Bridges

IRR Schneph Road over Un-Named Wash

Fair

Pinal County, Arizona · 0.5 MI South Combs RD · Structure no. 09611

Built
1964
61 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
1,000
2022 count
Owner
County
County Highway Agency

About this bridge

IRR Schneph Road over Un-Named Wash is a concrete continuous culvert carrying IRR Schneph Road over Un-Named Wash in Pinal County, Arizona. It was built in 1964, so it is 61 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,000 vehicles a day, roughly 15% of them trucks, projected to reach 1,010 by 2042. The structure is 24 ft (7.3 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesIRR Schneph Road
CrossesUn-Named Wash
Location0.5 MI South Combs RD
RouteCounty Highway 0
CountyPinal County
StateArizona
Coordinates33.21283, -111.52872
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width39 ft (11.8 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2022)
Projected traffic1,010 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 IRR Schneph Road over Un-Named Wash built?

It was built in 1964, making it 61 years old in 2025.

What condition is IRR Schneph Road over Un-Named Wash in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does IRR Schneph Road over Un-Named Wash carry?

About 1,000 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is IRR Schneph Road over Un-Named Wash?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 39 ft wide.

Who owns IRR Schneph Road over Un-Named Wash?

It is owned by the County Highway Agency.