US Bridges

Mt Madonna RD over Little Arthur Creek

Good

Santa Clara County, California · At Redwood Retreat RD · Structure no. 37C0555

Built
1925
100 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Concrete
Length
28 ft
1 main span
Daily traffic
80
2011 count
Owner
County
County Highway Agency

About this bridge

Mt Madonna RD over Little Arthur Creek is a concrete tee beam carrying Mt Madonna RD over Little Arthur Creek in Santa Clara County, California. It was built in 1925, so it is 100 years old, older than the California average of 54.8 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 80 vehicles a day, roughly 5% of them trucks, projected to reach 102 by 2042. The structure is 28 ft (8.5 m) long and 23 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMt Madonna RD
CrossesLittle Arthur Creek
LocationAt Redwood Retreat RD
RouteCounty Highway 0
Coordinates37.03427, -121.70804
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.8 US tons
Inventory rating30.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span27 ft (8.2 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2011)
Projected traffic102 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Mt Madonna RD over Little Arthur Creek built?

It was built in 1925, making it 100 years old in 2025.

What condition is Mt Madonna RD over Little Arthur Creek 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 September 2024.

How much traffic does Mt Madonna RD over Little Arthur Creek carry?

About 80 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Mt Madonna RD over Little Arthur Creek?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 23 ft wide.

Who owns Mt Madonna RD over Little Arthur Creek?

It is owned by the County Highway Agency.