US Bridges

Orange Grove RD over Casa Adobes Wash

Fair

Pima County, Arizona · 300 Ft W of LA Canada DR · Structure no. 09556

Built
1972
53 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
50 ft
4 main spans
Daily traffic
18,094
2022 count
Owner
County
County Highway Agency

About this bridge

Orange Grove RD over Casa Adobes Wash is a concrete continuous culvert carrying Orange Grove RD over Casa Adobes Wash in Pima County, Arizona. It was built in 1972, so it is 53 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 18,094 vehicles a day, roughly 5% of them trucks, projected to reach 18,104 by 2042. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesOrange Grove RD
CrossesCasa Adobes Wash
Location300 Ft W of LA Canada DR
RouteCounty Highway 502
CountyPima County
StateArizona
Coordinates32.3232, -110.99681
Functional classUrban Minor Arterial

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 inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating94 US tons
Inventory rating56 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,094 (2022)
Projected traffic18,104 by 2042
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway 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 Orange Grove RD over Casa Adobes Wash built?

It was built in 1972, making it 53 years old in 2025.

What condition is Orange Grove RD over Casa Adobes Wash 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 March 2024.

How much traffic does Orange Grove RD over Casa Adobes Wash carry?

About 18,094 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Orange Grove RD over Casa Adobes Wash?

The structure is 50 ft (15.2 m) long with a longest span of 10 ft (3 m).

Who owns Orange Grove RD over Casa Adobes Wash?

It is owned by the County Highway Agency.