US Bridges

Sierra Madre Drive over Bristol Wash

Good

Maricopa County, Arizona · Sierra MADRE/100E Zapata · Structure no. 10138

Built
1997
28 years old
Condition
Good
inspected April 2022
Type
Culvert
Concrete Continuous
Length
40 ft
4 main spans
Daily traffic
704
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Sierra Madre Drive over Bristol Wash is a concrete continuous culvert carrying Sierra Madre Drive over Bristol Wash in Maricopa County, Arizona. It was built in 1997, so it is 28 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 704 vehicles a day, roughly 2% of them trucks, projected to reach 714 by 2040. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSierra Madre Drive
CrossesBristol Wash
LocationSierra MADRE/100E Zapata
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.626, -111.754
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic704 (2020)
Projected traffic714 by 2040
Trucks2%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Sierra Madre Drive over Bristol Wash built?

It was built in 1997, making it 28 years old in 2025.

What condition is Sierra Madre Drive over Bristol Wash 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 April 2022.

How much traffic does Sierra Madre Drive over Bristol Wash carry?

About 704 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Sierra Madre Drive over Bristol Wash?

The structure is 40 ft (12.2 m) long with a longest span of 8 ft (2.4 m).

Who owns Sierra Madre Drive over Bristol Wash?

It is owned by the Town or Township Highway Agency.