US Bridges

Rh Johnson Blvd over Drainage Ditch

Fair

Maricopa County, Arizona · N of Bell RD · Structure no. 08570

Built
1979
46 years old, rebuilt 2006
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
45 ft
7 main spans
Daily traffic
12,866
2020 count
Owner
County
County Highway Agency

About this bridge

Rh Johnson Blvd over Drainage Ditch is a concrete culvert carrying Rh Johnson Blvd over Drainage Ditch in Maricopa County, Arizona. It was built in 1979 and reconstructed in 2006, 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 12,866 vehicles a day, roughly 10% of them trucks, projected to reach 12,876 by 2040. The structure is 45 ft (13.7 m) long and 88 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRh Johnson Blvd
CrossesDrainage Ditch
LocationN of Bell RD
RouteCounty Highway 0
CountyMaricopa County
StateArizona
Coordinates33.63876, -112.33449
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
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
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.4 US tons
Inventory rating30.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans7
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span6 ft (1.8 m)
Deck width88 ft (26.8 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,866 (2020)
Projected traffic12,876 by 2040
Trucks10%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 Rh Johnson Blvd over Drainage Ditch built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2006.

What condition is Rh Johnson Blvd 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 Rh Johnson Blvd over Drainage Ditch carry?

About 12,866 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Rh Johnson Blvd over Drainage Ditch?

The structure is 45 ft (13.7 m) long with a longest span of 6 ft (1.8 m) and a deck 88 ft wide.

Who owns Rh Johnson Blvd over Drainage Ditch?

It is owned by the County Highway Agency.