US Bridges

Miller RD over Channel

Good

Maricopa County, Arizona · Miller @ Los Gatos · Structure no. 11268

Built
1996
29 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
60 ft
5 main spans
Daily traffic
14,310
2025 count
Owner
City
City or Municipal Highway Agency

About this bridge

Miller RD over Channel is a concrete continuous culvert carrying Miller RD over Channel in Maricopa County, Arizona. It was built in 1996, so it is 29 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 14,310 vehicles a day, roughly 5% of them trucks, projected to reach 14,320 by 2040. The structure is 60 ft (18.3 m) long and 142 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMiller RD
CrossesChannel
LocationMiller @ Los Gatos
RouteCity Street 0
StateArizona
Coordinates33.69167, -111.91667
Functional classUrban Collector

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 inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans5
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span8 ft (2.4 m)
Deck width142 ft (43.3 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,310 (2025)
Projected traffic14,320 by 2040
Trucks5%
Lanes on structure4
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 Miller RD over Channel built?

It was built in 1996, making it 29 years old in 2025.

What condition is Miller RD over Channel 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 January 2025.

How much traffic does Miller RD over Channel carry?

About 14,310 vehicles per day (2025 count), of which roughly 5% are trucks.

How long is Miller RD over Channel?

The structure is 60 ft (18.3 m) long with a longest span of 8 ft (2.4 m) and a deck 142 ft wide.

Who owns Miller RD over Channel?

It is owned by the City or Municipal Highway Agency.