US Bridges

40th Street over Tempe Drain

Fair

Maricopa County, Arizona · 0.42 MI S of University · Structure no. 11379

Built
1978
47 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Concrete
Length
37 ft
1 main span
Daily traffic
13,294
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

40th Street over Tempe Drain is a concrete stringer/multi-beam or girder carrying 40th Street over Tempe Drain in Maricopa County, Arizona. It was built in 1978, so it is 47 years old, younger than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 13,294 vehicles a day, roughly 5% of them trucks, projected to reach 13,304 by 2040. The structure is 37 ft (11.3 m) long and 79 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries40th Street
CrossesTempe Drain
Location0.42 MI S of University
RouteCity Street 0
StateArizona
Coordinates33.4157, -111.9954
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span37 ft (11.3 m)
Deck width79 ft (24.1 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,294 (2020)
Projected traffic13,304 by 2040
Trucks5%
Lanes on structure5
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 40th Street over Tempe Drain built?

It was built in 1978, making it 47 years old in 2025.

What condition is 40th Street over Tempe Drain in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2022.

How much traffic does 40th Street over Tempe Drain carry?

About 13,294 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is 40th Street over Tempe Drain?

The structure is 37 ft (11.3 m) long with a longest span of 37 ft (11.3 m) and a deck 79 ft wide.

Who owns 40th Street over Tempe Drain?

It is owned by the City or Municipal Highway Agency.