US Bridges

Oleary Street over Rio De Flag

Fair

Coconino County, Arizona · 1.0 MI S US 66 · Structure no. 09494

Built
1956
69 years old
Condition
Fair
inspected July 2021
Type
Culvert
Steel
Length
21 ft
1 main span
Daily traffic
810
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Oleary Street over Rio De Flag is a steel culvert carrying Oleary Street over Rio De Flag in Coconino County, Arizona. It was built in 1956, so it is 69 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 810 vehicles a day, roughly 1% of them trucks, projected to reach 820 by 2037. The structure is 21 ft (6.4 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOleary Street
CrossesRio De Flag
Location1.0 MI S US 66
RouteCity Street 0
CountyCoconino County
StateArizona
Coordinates35.1915, -111.6471
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
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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.9 US tons
Inventory rating46 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width50 ft (15.2 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic810 (2017)
Projected traffic820 by 2037
Trucks1%
Lanes on structure2
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 Oleary Street over Rio De Flag built?

It was built in 1956, making it 69 years old in 2025.

What condition is Oleary Street 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 Oleary Street over Rio De Flag carry?

About 810 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Oleary Street over Rio De Flag?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 50 ft wide.

Who owns Oleary Street over Rio De Flag?

It is owned by the City or Municipal Highway Agency.