US Bridges

SR 75 over China Camp Wash

Fair

Greenlee County, Arizona · 9.6 MI North of JCT US 70 · Structure no. 04359

Built
1938
87 years old, rebuilt 1965
Condition
Fair
inspected August 2021
Type
Culvert
Concrete Continuous
Length
64 ft
6 main spans
Daily traffic
1,562
2015 count
Owner
State
State Highway Agency

About this bridge

SR 75 over China Camp Wash is a concrete continuous culvert carrying SR 75 over China Camp Wash in Greenlee County, Arizona. It was built in 1938 and reconstructed in 1965, so it is 87 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 1,562 vehicles a day, roughly 17% of them trucks, projected to reach 1,572 by 2035. The structure is 64 ft (19.5 m) long. If it were closed, the detour would be 52.8 mi (85 km).

Location

Open in Google Maps
CarriesSR 75
CrossesChina Camp Wash
Location9.6 MI North of JCT US 70
RouteState Highway 75
CountyGreenlee County
StateArizona
Coordinates32.8227, -109.1735
Functional classRural Major 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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating79 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans6
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck16 ft (5 m)

Traffic and service

Average daily traffic1,562 (2015)
Projected traffic1,572 by 2035
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.8 mi (85 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 SR 75 over China Camp Wash built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1965.

What condition is SR 75 over China Camp 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 August 2021.

How much traffic does SR 75 over China Camp Wash carry?

About 1,562 vehicles per day (2015 count), of which roughly 17% are trucks.

How long is SR 75 over China Camp Wash?

The structure is 64 ft (19.5 m) long with a longest span of 10 ft (3 m).

Who owns SR 75 over China Camp Wash?

It is owned by the State Highway Agency.