US Bridges

Parker Swansea RD over Cap Canal

Good

La Paz County, Arizona · @ Cap Milepost 13.146 · Structure no. 00984

Built
1983
42 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
154 ft
2 main spans
Daily traffic
40
2024 count
Owner
State
Other State Agency

About this bridge

Parker Swansea RD over Cap Canal is a prestressed concrete stringer/multi-beam or girder carrying Parker Swansea RD 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 40 vehicles a day, projected to reach 50 by 2042. The structure is 154 ft (46.9 m) long and 43 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

CarriesParker Swansea RD
CrossesCap Canal
Location@ Cap Milepost 13.146
RouteFederal Lands Road 0
StateArizona
Coordinates34.11069, -114.01389
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 protection7 GoodSome minor problems.
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 rating85 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length154 ft (46.9 m)
Longest span76 ft (23.2 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic50 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 byOther State 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 Parker Swansea RD over Cap Canal built?

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

What condition is Parker Swansea RD 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 Parker Swansea RD over Cap Canal carry?

About 40 vehicles per day (2024 count).

How long is Parker Swansea RD over Cap Canal?

The structure is 154 ft (46.9 m) long with a longest span of 76 ft (23.2 m) and a deck 43 ft wide.

Who owns Parker Swansea RD over Cap Canal?

It is owned by the Other State Agency.