US Bridges

SR 64 over Tappan Springs Canyon

Fair

Coconino County, Arizona · 1.0 MI W JCT US 89 · Structure no. 02098

Built
1993
32 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
140 ft
1 main span
Daily traffic
2,080
2024 count
Owner
State
State Highway Agency

About this bridge

SR 64 over Tappan Springs Canyon is a prestressed concrete stringer/multi-beam or girder carrying SR 64 over Tappan Springs Canyon in Coconino County, Arizona. It was built in 1993, so it is 32 years old, younger 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 2,080 vehicles a day, roughly 13% of them trucks, projected to reach 2,090 by 2042. The structure is 140 ft (42.7 m) long and 47 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesSR 64
CrossesTappan Springs Canyon
Location1.0 MI W JCT US 89
RouteState Highway 64
CountyCoconino County
StateArizona
Coordinates35.8576, -111.4448
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span135 ft (41.1 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,080 (2024)
Projected traffic2,090 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 64 over Tappan Springs Canyon built?

It was built in 1993, making it 32 years old in 2025.

What condition is SR 64 over Tappan Springs Canyon 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 July 2024.

How much traffic does SR 64 over Tappan Springs Canyon carry?

About 2,080 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is SR 64 over Tappan Springs Canyon?

The structure is 140 ft (42.7 m) long with a longest span of 135 ft (41.1 m) and a deck 47 ft wide.

Who owns SR 64 over Tappan Springs Canyon?

It is owned by the State Highway Agency.