US Bridges

El Mirage RD over Drainage Ditch

Fair

Maricopa County, Arizona · N/ Bell RD · Structure no. 08561

Built
1979
46 years old, rebuilt 2010
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
13,392
2020 count
Owner
County
County Highway Agency

About this bridge

El Mirage RD over Drainage Ditch is a concrete culvert carrying El Mirage RD over Drainage Ditch in Maricopa County, Arizona. It was built in 1979 and reconstructed in 2010, so it is 46 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 13,392 vehicles a day, roughly 20% of them trucks, projected to reach 13,402 by 2040. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEl Mirage RD
CrossesDrainage Ditch
LocationN/ Bell RD
RouteCounty Highway 0
StateArizona
Coordinates33.63894, -112.32461
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 36 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating85.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,392 (2020)
Projected traffic13,402 by 2040
Trucks20%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was El Mirage RD over Drainage Ditch built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2010.

What condition is El Mirage RD over Drainage Ditch 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 2023.

How much traffic does El Mirage RD over Drainage Ditch carry?

About 13,392 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is El Mirage RD over Drainage Ditch?

The structure is 45 ft (13.7 m) long with a longest span of 18 ft (5.5 m).

Who owns El Mirage RD over Drainage Ditch?

It is owned by the County Highway Agency.