US Bridges

Limberlost DR over North Mountain Ave Wash

Good

Pima County, Arizona · @ JCT W/Mountain Ave · Structure no. 10287

Built
1994
31 years old
Condition
Good
inspected August 2021
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
10,000
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Limberlost DR over North Mountain Ave Wash is a concrete continuous culvert carrying Limberlost DR 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 10,000 vehicles a day, roughly 5% of them trucks, projected to reach 10,010 by 2041. The structure is 23 ft (7 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLimberlost DR
CrossesNorth Mountain Ave Wash
Location@ JCT W/Mountain Ave
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.283, -110.9523
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
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width60 ft (18.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck18 ft (5.5 m)

Traffic and service

Average daily traffic10,000 (2021)
Projected traffic10,010 by 2041
Trucks5%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Limberlost DR over North Mountain Ave Wash built?

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

What condition is Limberlost DR 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 Limberlost DR over North Mountain Ave Wash carry?

About 10,000 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Limberlost DR over North Mountain Ave Wash?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 60 ft wide.

Who owns Limberlost DR over North Mountain Ave Wash?

It is owned by the City or Municipal Highway Agency.