US Bridges

Old B40 EB over Cataract Creek

Fair

Coconino County, Arizona · 2.7 MI W JCT SR 64 · Structure no. 07936

Built
1928
97 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
6,041
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old B40 EB over Cataract Creek is a concrete continuous culvert carrying Old B40 EB over Cataract Creek in Coconino County, Arizona. It was built in 1928, so it is 97 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 6,041 vehicles a day, roughly 10% of them trucks, projected to reach 6,051 by 2040. The structure is 32 ft (9.8 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesOld B40 EB
CrossesCataract Creek
Location2.7 MI W JCT SR 64
RouteCity Street 0
CountyCoconino County
StateArizona
Coordinates35.249, -112.19281
Functional classRural Major 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 inspectionApril 2023
Inspection intervalevery 24 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 alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
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 deck30 ft (9.1 m)

Traffic and service

Average daily traffic6,041 (2020)
Projected traffic6,051 by 2040
Trucks10%
Lanes on structure2
Traffic directionOne-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 Old B40 EB over Cataract Creek built?

It was built in 1928, making it 97 years old in 2025.

What condition is Old B40 EB over Cataract Creek 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 April 2023.

How much traffic does Old B40 EB over Cataract Creek carry?

About 6,041 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Old B40 EB over Cataract Creek?

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 Old B40 EB over Cataract Creek?

It is owned by the City or Municipal Highway Agency.