US Bridges

S Parker Canyon RD over Trib. to Parker Lake

Fair

Santa Cruz County, Arizona · 0.6 MI S/O Lake Marina · Structure no. 030503000035955

Built
1957
68 years old
Condition
Fair
inspected June 2024
Type
Culvert
Steel
Length
45 ft
1 main span
Daily traffic
100
2022 count
Owner
Federal
U.S. Forest Service

About this bridge

S Parker Canyon RD over Trib. to Parker Lake is a steel culvert carrying S Parker Canyon RD over Trib. to Parker Lake in Santa Cruz County, Arizona. It was built in 1957, so it is 68 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 199 by 2040. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesS Parker Canyon RD
CrossesTrib. to Parker Lake
Location0.6 MI S/O Lake Marina
RouteFederal Lands Road 0
CountySanta Cruz County
StateArizona
Coordinates31.43006, -110.44605
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating76.4 US tons
Inventory rating59 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic199 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S Parker Canyon RD over Trib. to Parker Lake built?

It was built in 1957, making it 68 years old in 2025.

What condition is S Parker Canyon RD over Trib. to Parker Lake 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 June 2024.

How much traffic does S Parker Canyon RD over Trib. to Parker Lake carry?

About 100 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is S Parker Canyon RD over Trib. to Parker Lake?

The structure is 45 ft (13.7 m) long with a longest span of 20 ft (6.1 m).

Who owns S Parker Canyon RD over Trib. to Parker Lake?

It is owned by the U.S. Forest Service.