US Bridges

Grant Avenue over Cataract Creek

Good

Coconino County, Arizona · At JCT 6th Street · Structure no. 08798

Built
1985
40 years old
Condition
Good
inspected January 2022
Type
Culvert
Concrete Continuous
Length
34 ft
3 main spans
Daily traffic
1,000
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Grant Avenue over Cataract Creek is a concrete continuous culvert carrying Grant Avenue over Cataract Creek in Coconino County, Arizona. It was built in 1985, so it is 40 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 1,000 vehicles a day, roughly 2% of them trucks, projected to reach 1,010 by 2041. The structure is 34 ft (10.4 m) long and 59 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesGrant Avenue
CrossesCataract Creek
LocationAt JCT 6th Street
RouteCity Street 0
CountyCoconino County
StateArizona
Coordinates35.2481, -112.1922
Functional classRural Local

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59 US tons
Inventory rating35.1 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 width59 ft (18.1 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deck25 ft (7.6 m)

Traffic and service

Average daily traffic1,000 (2021)
Projected traffic1,010 by 2041
Trucks2%
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 Grant Avenue over Cataract Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Grant Avenue over Cataract Creek 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 January 2022.

How much traffic does Grant Avenue over Cataract Creek carry?

About 1,000 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Grant Avenue over Cataract Creek?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 59 ft wide.

Who owns Grant Avenue over Cataract Creek?

It is owned by the City or Municipal Highway Agency.