US Bridges

138th Ave over Drainage Ditch

Fair

Maricopa County, Arizona · 270 Sw/ Camino Del Sol · Structure no. 07561

Built
1986
39 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
1,500
2023 count
Owner
County
County Highway Agency

About this bridge

138th Ave over Drainage Ditch is a concrete culvert carrying 138th Ave over Drainage Ditch in Maricopa County, Arizona. It was built in 1986, so it is 39 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 1,500 vehicles a day, projected to reach 1,510 by 2042. The structure is 31 ft (9.4 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries138th Ave
CrossesDrainage Ditch
Location270 Sw/ Camino Del Sol
RouteCounty Highway 0
CountyMaricopa County
StateArizona
Coordinates33.65477, -112.35977
Functional classUrban Local

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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span9 ft (2.7 m)
Deck width44 ft (13.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2023)
Projected traffic1,510 by 2042
Trucks0%
Lanes on structure2
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 138th Ave over Drainage Ditch built?

It was built in 1986, making it 39 years old in 2025.

What condition is 138th Ave 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 138th Ave over Drainage Ditch carry?

About 1,500 vehicles per day (2023 count).

How long is 138th Ave over Drainage Ditch?

The structure is 31 ft (9.4 m) long with a longest span of 9 ft (2.7 m) and a deck 44 ft wide.

Who owns 138th Ave over Drainage Ditch?

It is owned by the County Highway Agency.