US Bridges

SR 87 SB over SR 87 NB

Good

Maricopa County, Arizona · 19.67 MI S of JCT 188 · Structure no. 02297

Built
1997
28 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
157 ft
1 main span
Daily traffic
11,096
2023 count
Owner
State
State Highway Agency

About this bridge

SR 87 SB over SR 87 NB is a prestressed concrete box beam or girders - single or spread carrying SR 87 SB over SR 87 NB in Maricopa County, Arizona. It was built in 1997, so it is 28 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 11,096 vehicles a day, roughly 12% of them trucks, projected to reach 11,106 by 2042. The structure is 157 ft (47.9 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSR 87 SB
CrossesSR 87 NB
Location19.67 MI S of JCT 188
RouteState Highway 87
CountyMaricopa County
StateArizona
Coordinates33.8371, -111.4711
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating57 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length157 ft (47.9 m)
Longest span150 ft (45.7 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,096 (2023)
Projected traffic11,106 by 2042
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 87 SB over SR 87 NB built?

It was built in 1997, making it 28 years old in 2025.

What condition is SR 87 SB over SR 87 NB 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 September 2023.

How much traffic does SR 87 SB over SR 87 NB carry?

About 11,096 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is SR 87 SB over SR 87 NB?

The structure is 157 ft (47.9 m) long with a longest span of 150 ft (45.7 m) and a deck 45 ft wide.

Who owns SR 87 SB over SR 87 NB?

It is owned by the State Highway Agency.