US Bridges

Mona Lisa Road over Carmack Wash

Good

Pima County, Arizona · 0.25 MI N Ina Road · Structure no. 09972

Built
1987
38 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete Continuous
Length
77 ft
7 main spans
Daily traffic
5,468
2022 count
Owner
County
County Highway Agency

About this bridge

Mona Lisa Road over Carmack Wash is a concrete continuous culvert carrying Mona Lisa Road over Carmack Wash in Pima County, Arizona. It was built in 1987, so it is 38 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 5,468 vehicles a day, projected to reach 5,478 by 2042. The structure is 77 ft (23.5 m) long.

Location

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CarriesMona Lisa Road
CrossesCarmack Wash
Location0.25 MI N Ina Road
RouteCounty Highway 0
CountyPima County
StateArizona
Coordinates32.34074, -111.02057
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating92 US tons
Inventory rating55 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans7
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck32 ft (9.8 m)

Traffic and service

Average daily traffic5,468 (2022)
Projected traffic5,478 by 2042
Trucks0%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Mona Lisa Road over Carmack Wash built?

It was built in 1987, making it 38 years old in 2025.

What condition is Mona Lisa Road over Carmack 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 November 2023.

How much traffic does Mona Lisa Road over Carmack Wash carry?

About 5,468 vehicles per day (2022 count).

How long is Mona Lisa Road over Carmack Wash?

The structure is 77 ft (23.5 m) long with a longest span of 10 ft (3 m).

Who owns Mona Lisa Road over Carmack Wash?

It is owned by the County Highway Agency.