US Bridges

Lone Mt RD over Dry Wash

Good

Maricopa County, Arizona · Lone Mt RD E/O 44 ST · Structure no. 10192

Built
1989
36 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
28 ft
6 main spans
Daily traffic
1,000
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lone Mt RD over Dry Wash is a concrete culvert carrying Lone Mt RD over Dry Wash in Maricopa County, Arizona. It was built in 1989, so it is 36 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 1,000 vehicles a day, roughly 1% of them trucks, projected to reach 1,010 by 2039. The structure is 28 ft (8.5 m) long and 45 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLone Mt RD
CrossesDry Wash
LocationLone Mt RD E/O 44 ST
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.7701, -111.9865
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 inspectionDecember 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 alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span4 ft (1.2 m)
Deck width45 ft (13.7 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2019)
Projected traffic1,010 by 2039
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Lone Mt RD over Dry Wash built?

It was built in 1989, making it 36 years old in 2025.

What condition is Lone Mt RD over Dry 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 December 2023.

How much traffic does Lone Mt RD over Dry Wash carry?

About 1,000 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Lone Mt RD over Dry Wash?

The structure is 28 ft (8.5 m) long with a longest span of 4 ft (1.2 m) and a deck 45 ft wide.

Who owns Lone Mt RD over Dry Wash?

It is owned by the City or Municipal Highway Agency.