US Bridges

Mill Ave over Crosscut Canal Rcb

Fair

Maricopa County, Arizona · 0.10 MI N of Curry RD · Structure no. 09953

Built
1932
93 years old, rebuilt 1962
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
12,880
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mill Ave over Crosscut Canal Rcb is a concrete continuous culvert carrying Mill Ave over Crosscut Canal Rcb in Maricopa County, Arizona. It was built in 1932 and reconstructed in 1962, so it is 93 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 12,880 vehicles a day, roughly 5% of them trucks, projected to reach 12,890 by 2042. The structure is 21 ft (6.4 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMill Ave
CrossesCrosscut Canal Rcb
Location0.10 MI N of Curry RD
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.439, -111.9439
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width79 ft (24.1 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,880 (2023)
Projected traffic12,890 by 2042
Trucks5%
Lanes on structure5
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 Mill Ave over Crosscut Canal Rcb built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1962.

What condition is Mill Ave over Crosscut Canal Rcb 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 September 2023.

How much traffic does Mill Ave over Crosscut Canal Rcb carry?

About 12,880 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Mill Ave over Crosscut Canal Rcb?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 79 ft wide.

Who owns Mill Ave over Crosscut Canal Rcb?

It is owned by the City or Municipal Highway Agency.