US Bridges

Clayton RD over South Babb Creek

Good

Santa Clara County, California · 675 Ft W/O Mt Mckinley DR · Structure no. 37C0849

Built
1988
37 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete
Length
21 ft
1 main span
Daily traffic
1,200
1990 count
Owner
City
City or Municipal Highway Agency

About this bridge

Clayton RD over South Babb Creek is a concrete slab carrying Clayton RD over South Babb Creek in Santa Clara County, California. It was built in 1988, so it is 37 years old, younger 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 1,200 vehicles a day, roughly 3% of them trucks, projected to reach 1,500 by 2045. The structure is 21 ft (6.5 m) long and 23 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesClayton RD
CrossesSouth Babb Creek
Location675 Ft W/O Mt Mckinley DR
RouteCity Street 0
Coordinates37.35594, -121.805
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length21 ft (6.5 m)
Longest span20 ft (6.1 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (1990)
Projected traffic1,500 by 2045
Trucks3%
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 Clayton RD over South Babb Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Clayton RD over South Babb 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 February 2024.

How much traffic does Clayton RD over South Babb Creek carry?

About 1,200 vehicles per day (1990 count), of which roughly 3% are trucks.

How long is Clayton RD over South Babb Creek?

The structure is 21 ft (6.5 m) long with a longest span of 20 ft (6.1 m) and a deck 23 ft wide.

Who owns Clayton RD over South Babb Creek?

It is owned by the City or Municipal Highway Agency.