US Bridges

US 70 over Graveyard Wash

Fair

Graham County, Arizona · 38.9 MI W JCT SR 75 · Structure no. 04317

Built
1948
77 years old, rebuilt 1960
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
14,272
2022 count
Owner
State
State Highway Agency

About this bridge

US 70 over Graveyard Wash is a concrete continuous culvert carrying US 70 over Graveyard Wash in Graham County, Arizona. It was built in 1948 and reconstructed in 1960, so it is 77 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 14,272 vehicles a day, roughly 9% of them trucks, projected to reach 14,282 by 2042. The structure is 29 ft (8.8 m) long and 100 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesUS 70
CrossesGraveyard Wash
Location38.9 MI W JCT SR 75
RouteU.S. Route 70
CountyGraham County
StateArizona
Coordinates32.8316, -109.6989
Functional classUrban Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span10 ft (3 m)
Deck width100 ft (30.6 m)
Roadway width81 ft (24.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,272 (2022)
Projected traffic14,282 by 2042
Trucks9%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed21.7 mi (35 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 US 70 over Graveyard Wash built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1960.

What condition is US 70 over Graveyard 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 November 2023.

How much traffic does US 70 over Graveyard Wash carry?

About 14,272 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is US 70 over Graveyard Wash?

The structure is 29 ft (8.8 m) long with a longest span of 10 ft (3 m) and a deck 100 ft wide.

Who owns US 70 over Graveyard Wash?

It is owned by the State Highway Agency.