US Bridges

100th ST over Channel

Good

Maricopa County, Arizona · N of Via Linda · Structure no. 11218

Built
1983
42 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
18,400
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

100th ST over Channel is a concrete continuous culvert carrying 100th ST over Channel in Maricopa County, Arizona. It was built in 1983, so it is 42 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 18,400 vehicles a day, projected to reach 18,410 by 2042. The structure is 21 ft (6.4 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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Carries100th ST
CrossesChannel
LocationN of Via Linda
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.57778, -111.86944
Functional classUrban Local

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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width50 ft (15.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,400 (2023)
Projected traffic18,410 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

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 100th ST over Channel built?

It was built in 1983, making it 42 years old in 2025.

What condition is 100th ST over Channel 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 March 2023.

How much traffic does 100th ST over Channel carry?

About 18,400 vehicles per day (2023 count).

How long is 100th ST over Channel?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 50 ft wide.

Who owns 100th ST over Channel?

It is owned by the City or Municipal Highway Agency.