US Bridges

411th Avenue over I 10

Fair

Maricopa County, Arizona · 21.9 MI West of JCT SR 85 · Structure no. 01523

Built
1971
54 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
245 ft
2 main spans
Daily traffic
934
2023 count
Owner
State
State Highway Agency

About this bridge

411th Avenue over I 10 is a concrete continuous box beam or girders - single or spread carrying 411th Avenue over I 10 in Maricopa County, Arizona. It was built in 1971, so it is 54 years old, older 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 934 vehicles a day, roughly 26% of them trucks, projected to reach 944 by 2042. The structure is 245 ft (74.7 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries411th Avenue
CrossesI 10
Location21.9 MI West of JCT SR 85
RouteCounty Highway 0
CountyMaricopa County
StateArizona
Coordinates33.497, -112.937
Functional classRural Minor Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 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 alignment8: Equal to present desirable criteria
Operating rating93 US tons
Inventory rating56 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length245 ft (74.7 m)
Longest span120 ft (36.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic934 (2023)
Projected traffic944 by 2042
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 411th Avenue over I 10 built?

It was built in 1971, making it 54 years old in 2025.

What condition is 411th Avenue over I 10 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 May 2023.

How much traffic does 411th Avenue over I 10 carry?

About 934 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is 411th Avenue over I 10?

The structure is 245 ft (74.7 m) long with a longest span of 120 ft (36.6 m) and a deck 43 ft wide.

Who owns 411th Avenue over I 10?

It is owned by the State Highway Agency.