US Bridges

Glendale Avenue over SR 51

Fair

Maricopa County, Arizona · 5.6 MI N JCT I-10 · Structure no. 02372

Built
1991
34 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
145 ft
2 main spans
Daily traffic
53,928
2022 count
Owner
State
State Highway Agency

About this bridge

Glendale Avenue over SR 51 is a prestressed concrete continuous box beam or girders - single or spread carrying Glendale Avenue over SR 51 in Maricopa County, Arizona. It was built in 1991, so it is 34 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 53,928 vehicles a day, roughly 5% of them trucks, projected to reach 53,938 by 2042. The structure is 145 ft (44.2 m) long and 128 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesGlendale Avenue
CrossesSR 51
Location5.6 MI N JCT I-10
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.5383, -112.0418
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.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating74 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span71 ft (21.6 m)
Deck width128 ft (39 m)
Roadway width112 ft (34.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,928 (2022)
Projected traffic53,938 by 2042
Trucks5%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 Glendale Avenue over SR 51 built?

It was built in 1991, making it 34 years old in 2025.

What condition is Glendale Avenue over SR 51 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 November 2023.

How much traffic does Glendale Avenue over SR 51 carry?

About 53,928 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Glendale Avenue over SR 51?

The structure is 145 ft (44.2 m) long with a longest span of 71 ft (21.6 m) and a deck 128 ft wide.

Who owns Glendale Avenue over SR 51?

It is owned by the State Highway Agency.