US Bridges

SR 179 over Morgans Wash

Good

Coconino County, Arizona · 13.4 MI N JCT I-17 · Structure no. 06775

Built
1986
39 years old, rebuilt 2008
Condition
Good
inspected July 2021
Type
Culvert
Concrete Continuous
Length
40 ft
3 main spans
Daily traffic
13,108
2019 count
Owner
State
State Highway Agency

About this bridge

SR 179 over Morgans Wash is a concrete continuous culvert carrying SR 179 over Morgans Wash in Coconino County, Arizona. It was built in 1986 and reconstructed in 2008, so it is 39 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 13,108 vehicles a day, roughly 2% of them trucks, projected to reach 13,118 by 2039. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesSR 179
CrossesMorgans Wash
Location13.4 MI N JCT I-17
RouteState Highway 179
CountyCoconino County
StateArizona
Coordinates34.85274, -111.76451
Functional classUrban Other Principal 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 protection7 GoodSome minor problems.
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating74 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,108 (2019)
Projected traffic13,118 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 179 over Morgans Wash built?

It was built in 1986, making it 39 years old in 2025. It was reconstructed in 2008.

What condition is SR 179 over Morgans Wash 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 SR 179 over Morgans Wash carry?

About 13,108 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is SR 179 over Morgans Wash?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.7 m).

Who owns SR 179 over Morgans Wash?

It is owned by the State Highway Agency.