US Bridges

Greaterville Road over Medium Wash

FairPosted for load

Pima County, Arizona · 0.3 MI W Sonoita HWY · Structure no. 08300

Built
1935
90 years old, rebuilt 1988
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
55 ft
3 main spans
Daily traffic
200
2022 count
Owner
County
County Highway Agency

About this bridge

Greaterville Road over Medium Wash is a concrete slab carrying Greaterville Road over Medium Wash in Pima County, Arizona. It was built in 1935 and reconstructed in 1988, so it is 90 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, projected to reach 210 by 2042. The structure is 55 ft (16.8 m) long and 23 ft wide. If it were closed, the detour would be 80.2 mi (129 km).

Location

Open in Google Maps
CarriesGreaterville Road
CrossesMedium Wash
Location0.3 MI W Sonoita HWY
RouteCounty Highway 0
CountyPima County
StateArizona
Coordinates31.7817, -110.6962
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length55 ft (16.8 m)
Longest span18 ft (5.5 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic210 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed80.2 mi (129 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Greaterville Road over Medium Wash built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1988.

What condition is Greaterville Road over Medium 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 February 2024.

How much traffic does Greaterville Road over Medium Wash carry?

About 200 vehicles per day (2022 count).

How long is Greaterville Road over Medium Wash?

The structure is 55 ft (16.8 m) long with a longest span of 18 ft (5.5 m) and a deck 23 ft wide.

Who owns Greaterville Road over Medium Wash?

It is owned by the County Highway Agency.