US Bridges

Mud Springs RD over I 17

Fair

Yavapai County, Arizona · 19.0 MI N JCT SR 74 · Structure no. 00863

Built
1965
60 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
224 ft
2 main spans
Daily traffic
1,066
2023 count
Owner
State
State Highway Agency

About this bridge

Mud Springs RD over I 17 is a steel continuous stringer/multi-beam or girder carrying Mud Springs RD over I 17 in Yavapai County, Arizona. It was built in 1965, so it is 60 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 1,066 vehicles a day, roughly 5% of them trucks, projected to reach 1,076 by 2042. The structure is 224 ft (68.3 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesMud Springs RD
CrossesI 17
Location19.0 MI N JCT SR 74
RouteCounty Highway 0
CountyYavapai County
StateArizona
Coordinates34.0656, -112.1431
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length224 ft (68.3 m)
Longest span110 ft (33.5 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,066 (2023)
Projected traffic1,076 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mud Springs RD over I 17 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Mud Springs RD over I 17 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 2023.

How much traffic does Mud Springs RD over I 17 carry?

About 1,066 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Mud Springs RD over I 17?

The structure is 224 ft (68.3 m) long with a longest span of 110 ft (33.5 m) and a deck 33 ft wide.

Who owns Mud Springs RD over I 17?

It is owned by the State Highway Agency.