US Bridges

Mountain Avenue over North Mountain Ave Wash

Good

Pima County, Arizona · 0.1 MI N Limberlost DR · Structure no. 10288

Built
1994
31 years old
Condition
Good
inspected August 2021
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
1,100
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mountain Avenue over North Mountain Ave Wash is a concrete continuous culvert carrying Mountain Avenue over North Mountain Ave Wash in Pima County, Arizona. It was built in 1994, so it is 31 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 1,100 vehicles a day, roughly 1% of them trucks, projected to reach 1,110 by 2041. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMountain Avenue
CrossesNorth Mountain Ave Wash
Location0.1 MI N Limberlost DR
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.2848, -110.9524
Functional classUrban Collector

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 inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2021)
Projected traffic1,110 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 Mountain Avenue over North Mountain Ave Wash built?

It was built in 1994, making it 31 years old in 2025.

What condition is Mountain Avenue over North Mountain Ave 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 August 2021.

How much traffic does Mountain Avenue over North Mountain Ave Wash carry?

About 1,100 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Mountain Avenue over North Mountain Ave Wash?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns Mountain Avenue over North Mountain Ave Wash?

It is owned by the City or Municipal Highway Agency.