US Bridges

Aspen Avenue over Rio De Flag

Fair

Coconino County, Arizona · Aspen Ave @ Kendrick ST · Structure no. 08614

Built
1960
65 years old
Condition
Fair
inspected July 2021
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
2,700
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Aspen Avenue over Rio De Flag is a concrete continuous culvert carrying Aspen Avenue over Rio De Flag in Coconino County, Arizona. It was built in 1960, so it is 65 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 2,700 vehicles a day, roughly 1% of them trucks, projected to reach 2,710 by 2039. The structure is 32 ft (9.8 m) long and 60 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesAspen Avenue
CrossesRio De Flag
LocationAspen Ave @ Kendrick ST
RouteCity Street 0
CountyCoconino County
StateArizona
Coordinates35.1995, -111.6521
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width60 ft (18.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2019)
Projected traffic2,710 by 2039
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Aspen Avenue over Rio De Flag built?

It was built in 1960, making it 65 years old in 2025.

What condition is Aspen Avenue over Rio De Flag 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 July 2021.

How much traffic does Aspen Avenue over Rio De Flag carry?

About 2,700 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Aspen Avenue over Rio De Flag?

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 Aspen Avenue over Rio De Flag?

It is owned by the City or Municipal Highway Agency.