US Bridges

Planet Ranch Road over Cap Canal

Good

La Paz County, Arizona · @ Cap Milepost 7.905 · Structure no. 01844

Built
1983
42 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
70
2024 count
Owner
State
Other State Agency

About this bridge

Planet Ranch Road over Cap Canal is a prestressed concrete stringer/multi-beam or girder carrying Planet Ranch Road over Cap Canal in La Paz County, Arizona. It was built in 1983, so it is 42 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 70 vehicles a day, projected to reach 80 by 2042. The structure is 103 ft (31.4 m) long and 43 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

CarriesPlanet Ranch Road
CrossesCap Canal
Location@ Cap Milepost 7.905
RouteFederal Lands Road 0
StateArizona
Coordinates34.17853, -114.05186
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 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 rating55 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span101 ft (30.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2024)
Projected traffic80 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byState Park, Forest, or Reservation 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 Planet Ranch Road over Cap Canal built?

It was built in 1983, making it 42 years old in 2025.

What condition is Planet Ranch Road over Cap Canal 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 February 2024.

How much traffic does Planet Ranch Road over Cap Canal carry?

About 70 vehicles per day (2024 count).

How long is Planet Ranch Road over Cap Canal?

The structure is 103 ft (31.4 m) long with a longest span of 101 ft (30.8 m) and a deck 43 ft wide.

Who owns Planet Ranch Road over Cap Canal?

It is owned by the Other State Agency and maintained by the State Park, Forest, or Reservation Agency.