US Bridges

Milky Way DR over Cap Canal

Fair

Pima County, Arizona · 0.25 MI W of San Joaquin · Structure no. 11541

Built
1990
35 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
51 ft
3 main spans
Daily traffic
500
2020 count
Owner
County
County Highway Agency

About this bridge

Milky Way DR over Cap Canal is a concrete continuous slab carrying Milky Way DR over Cap Canal in Pima County, Arizona. It was built in 1990, so it is 35 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 510 by 2040. The structure is 51 ft (15.5 m) long and 56 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesMilky Way DR
CrossesCap Canal
Location0.25 MI W of San Joaquin
RouteCounty Highway 0
CountyPima County
StateArizona
Coordinates32.1958, -111.1802
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span15 ft (4.6 m)
Deck width56 ft (17.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2020)
Projected traffic510 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

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 Milky Way DR over Cap Canal built?

It was built in 1990, making it 35 years old in 2025.

What condition is Milky Way DR over Cap Canal 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 February 2024.

How much traffic does Milky Way DR over Cap Canal carry?

About 500 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Milky Way DR over Cap Canal?

The structure is 51 ft (15.5 m) long with a longest span of 15 ft (4.6 m) and a deck 56 ft wide.

Who owns Milky Way DR over Cap Canal?

It is owned by the County Highway Agency.