US Bridges

US 93 SB over Santa Maria River

Good

Yavapai County, Arizona · 22.2 MI NW JCT SR 71 · Structure no. 02521

Built
2000
25 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
779 ft
6 main spans
Daily traffic
3,748
2021 count
Owner
State
State Highway Agency

About this bridge

US 93 SB over Santa Maria River is a prestressed concrete continuous stringer/multi-beam or girder carrying US 93 SB over Santa Maria River in Yavapai County, Arizona. It was built in 2000, so it is 25 years old, younger than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,748 vehicles a day, roughly 15% of them trucks, projected to reach 3,758 by 2041. The structure is 779 ft (237.4 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 93 SB
CrossesSanta Maria River
Location22.2 MI NW JCT SR 71
RouteU.S. Route 93
StateArizona
Coordinates34.3685, -113.1844
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating99 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length779 ft (237.4 m)
Longest span129 ft (39.3 m)
Deck width45 ft (13.7 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,748 (2021)
Projected traffic3,758 by 2041
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 93 SB over Santa Maria River built?

It was built in 2000, making it 25 years old in 2025.

What condition is US 93 SB over Santa Maria River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does US 93 SB over Santa Maria River carry?

About 3,748 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is US 93 SB over Santa Maria River?

The structure is 779 ft (237.4 m) long with a longest span of 129 ft (39.3 m) and a deck 45 ft wide.

Who owns US 93 SB over Santa Maria River?

It is owned by the State Highway Agency.