US Bridges

SR 87 over Oak Street

Good

Maricopa County, Arizona · 0.5 M N of Mcdowell Rd. · Structure no. 07000

Built
1998
27 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
39 ft
3 main spans
Daily traffic
16,861
2021 count
Owner
State
State Highway Agency

About this bridge

SR 87 over Oak Street is a concrete continuous culvert carrying SR 87 over Oak Street in Maricopa County, Arizona. It was built in 1998, so it is 27 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 16,861 vehicles a day, roughly 12% of them trucks, projected to reach 16,871 by 2041. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSR 87
CrossesOak Street
Location0.5 M N of Mcdowell Rd.
RouteState Highway 87
StateArizona
Coordinates33.47272, -111.8377
Functional classRural Principal Arterial - Other

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 inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,861 (2021)
Projected traffic16,871 by 2041
Trucks12%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 87 over Oak Street built?

It was built in 1998, making it 27 years old in 2025.

What condition is SR 87 over Oak Street 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 April 2023.

How much traffic does SR 87 over Oak Street carry?

About 16,861 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is SR 87 over Oak Street?

The structure is 39 ft (11.9 m) long with a longest span of 8 ft (2.4 m).

Who owns SR 87 over Oak Street?

It is owned by the State Highway Agency.