US Bridges

6th ST over Hidden Hills Wash

Good

Pima County, Arizona · 100 Ft E of Eastview Ave · Structure no. 08927

Built
1985
40 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
500
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

6th ST over Hidden Hills Wash is a concrete continuous culvert carrying 6th ST over Hidden Hills Wash in Pima County, Arizona. It was built in 1985, so it is 40 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 510 by 2042. The structure is 32 ft (9.8 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries6th ST
CrossesHidden Hills Wash
Location100 Ft E of Eastview Ave
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.22642, -110.79261
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
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 Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width60 ft (18.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2022)
Projected traffic510 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 6th ST over Hidden Hills Wash built?

It was built in 1985, making it 40 years old in 2025.

What condition is 6th ST over Hidden Hills Wash 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 December 2023.

How much traffic does 6th ST over Hidden Hills Wash carry?

About 500 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is 6th ST over Hidden Hills Wash?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 60 ft wide.

Who owns 6th ST over Hidden Hills Wash?

It is owned by the City or Municipal Highway Agency.