US Bridges

Fort Lowell Road over Alamo Wash

Good

Pima County, Arizona · 0.3 MI E JCT Swan Road · Structure no. 07581

Built
1988
37 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
3,000
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Fort Lowell Road over Alamo Wash is a prestressed concrete box beam or girders - multiple carrying Fort Lowell Road over Alamo Wash in Pima County, Arizona. It was built in 1988, so it is 37 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 3,000 vehicles a day, roughly 1% of them trucks, projected to reach 3,010 by 2039. The structure is 84 ft (25.6 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFort Lowell Road
CrossesAlamo Wash
Location0.3 MI E JCT Swan Road
RouteCity Street 0
StateArizona
Coordinates32.2615, -110.8861
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span80 ft (24.4 m)
Deck width60 ft (18.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2017)
Projected traffic3,010 by 2039
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Fort Lowell Road over Alamo Wash built?

It was built in 1988, making it 37 years old in 2025.

What condition is Fort Lowell Road over Alamo 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 March 2023.

How much traffic does Fort Lowell Road over Alamo Wash carry?

About 3,000 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Fort Lowell Road over Alamo Wash?

The structure is 84 ft (25.6 m) long with a longest span of 80 ft (24.4 m) and a deck 60 ft wide.

Who owns Fort Lowell Road over Alamo Wash?

It is owned by the City or Municipal Highway Agency.