US Bridges

Baseline Road over Western Canal

Good

Maricopa County, Arizona · Baseline RD E of 4th Ave · Structure no. 09922

Built
1986
39 years old
Condition
Good
inspected November 2020
Type
Culvert
Concrete Continuous
Length
118 ft
2 main spans
Daily traffic
39,708
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Baseline Road over Western Canal is a concrete continuous culvert carrying Baseline Road over Western Canal 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 39,708 vehicles a day, roughly 1% of them trucks, projected to reach 39,718 by 2039. The structure is 118 ft (36 m) long and 72 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBaseline Road
CrossesWestern Canal
LocationBaseline RD E of 4th Ave
RouteCity Street 0
StateArizona
Coordinates33.3777, -112.0792
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2020
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length118 ft (36 m)
Longest span15 ft (4.6 m)
Deck width72 ft (21.9 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,708 (2019)
Projected traffic39,718 by 2039
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Baseline Road over Western Canal built?

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

What condition is Baseline Road over Western Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2020.

How much traffic does Baseline Road over Western Canal carry?

About 39,708 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Baseline Road over Western Canal?

The structure is 118 ft (36 m) long with a longest span of 15 ft (4.6 m) and a deck 72 ft wide.

Who owns Baseline Road over Western Canal?

It is owned by the City or Municipal Highway Agency.