US Bridges

Mc Kean Road over Arroyo Calero

Fair

Santa Clara County, California · Near Calero Reservoir · Structure no. 37C0097

Built
1916
109 years old, rebuilt 2000
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
67 ft
4 main spans
Daily traffic
3,760
2009 count
Owner
County
County Highway Agency

About this bridge

Mc Kean Road over Arroyo Calero is a concrete continuous culvert carrying Mc Kean Road over Arroyo Calero in Santa Clara County, California. It was built in 1916 and reconstructed in 2000, so it is 109 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 3,760 vehicles a day, roughly 5% of them trucks, projected to reach 4,267 by 2042. The structure is 67 ft (20.4 m) long and 34 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

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CarriesMc Kean Road
CrossesArroyo Calero
LocationNear Calero Reservoir
RouteCounty Highway 0
CountySanta Clara County
StateCalifornia
Coordinates37.18734, -121.79575
Functional classRural Major 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length67 ft (20.4 m)
Longest span15 ft (4.6 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,760 (2009)
Projected traffic4,267 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 Mc Kean Road over Arroyo Calero built?

It was built in 1916, making it 109 years old in 2025. It was reconstructed in 2000.

What condition is Mc Kean Road over Arroyo Calero 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 March 2024.

How much traffic does Mc Kean Road over Arroyo Calero carry?

About 3,760 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Mc Kean Road over Arroyo Calero?

The structure is 67 ft (20.4 m) long with a longest span of 15 ft (4.6 m) and a deck 34 ft wide.

Who owns Mc Kean Road over Arroyo Calero?

It is owned by the County Highway Agency.