US Bridges

Perimeter Road over Drainage

Fair

Pima County, Arizona · N. of E. Valencia Rd. · Structure no. 2360027P0000000

Built
2000
25 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
25 ft
4 main spans
Daily traffic
30
2021 count
Owner
Federal
Air Force

About this bridge

Perimeter Road over Drainage is a concrete culvert carrying Perimeter Road over Drainage in Pima 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 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 30 vehicles a day, projected to reach 35 by 2031. The structure is 25 ft (7.6 m) long and 14 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesPerimeter Road
CrossesDrainage
LocationN. of E. Valencia Rd.
RouteFederal Lands Road 0
CountyPima County
StateArizona
Coordinates32.14398, -110.78987
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span5 ft (1.5 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2021)
Projected traffic35 by 2031
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerAir Force
Maintained byAir Force
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$23,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Perimeter Road over Drainage built?

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

What condition is Perimeter Road over Drainage 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 December 2024.

How much traffic does Perimeter Road over Drainage carry?

About 30 vehicles per day (2021 count).

How long is Perimeter Road over Drainage?

The structure is 25 ft (7.6 m) long with a longest span of 5 ft (1.5 m) and a deck 14 ft wide.

Who owns Perimeter Road over Drainage?

It is owned by the Air Force.