US Bridges

I-19 W Frontage RD over Agua Fria Canyon

Fair

Santa Cruz County, Arizona · 1.0 MI N of Calabasas Ti · Structure no. 08869

Built
1979
46 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
108 ft
3 main spans
Daily traffic
7,155
2024 count
Owner
County
County Highway Agency

About this bridge

I-19 W Frontage RD over Agua Fria Canyon is a concrete continuous slab carrying I-19 W Frontage RD over Agua Fria Canyon in Santa Cruz County, Arizona. It was built in 1979, so it is 46 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 7,155 vehicles a day, roughly 10% of them trucks, projected to reach 7,165 by 2042. The structure is 108 ft (32.9 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-19 W Frontage RD
CrossesAgua Fria Canyon
Location1.0 MI N of Calabasas Ti
RouteCounty Highway 0
CountySanta Cruz County
StateArizona
Coordinates31.4764, -111.0033
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating70 US tons
Inventory rating41 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length108 ft (32.9 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,155 (2024)
Projected traffic7,165 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 I-19 W Frontage RD over Agua Fria Canyon built?

It was built in 1979, making it 46 years old in 2025.

What condition is I-19 W Frontage RD over Agua Fria Canyon 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 August 2024.

How much traffic does I-19 W Frontage RD over Agua Fria Canyon carry?

About 7,155 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is I-19 W Frontage RD over Agua Fria Canyon?

The structure is 108 ft (32.9 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns I-19 W Frontage RD over Agua Fria Canyon?

It is owned by the County Highway Agency.