US Bridges

Butler Avenue over Rio De Flag

Good

Coconino County, Arizona · 1.0 MI S of US 66 · Structure no. 09959

Built
1991
34 years old
Condition
Good
inspected July 2021
Type
Culvert
Concrete Continuous
Length
34 ft
3 main spans
Daily traffic
21,000
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Butler Avenue over Rio De Flag is a concrete continuous culvert carrying Butler Avenue over Rio De Flag in Coconino County, Arizona. It was built in 1991, so it is 34 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 21,000 vehicles a day, roughly 5% of them trucks, projected to reach 21,010 by 2036. The structure is 34 ft (10.4 m) long and 100 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesButler Avenue
CrossesRio De Flag
Location1.0 MI S of US 66
RouteCity Street 9020
CountyCoconino County
StateArizona
Coordinates35.1937, -111.6502
Functional classUrban Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2021
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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width100 ft (30.5 m)
Roadway width71 ft (21.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,000 (2016)
Projected traffic21,010 by 2036
Trucks5%
Lanes on structure5
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 Butler Avenue over Rio De Flag built?

It was built in 1991, making it 34 years old in 2025.

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

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

About 21,000 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Butler Avenue over Rio De Flag?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 100 ft wide.

Who owns Butler Avenue over Rio De Flag?

It is owned by the City or Municipal Highway Agency.