US Bridges

State Route 9 over Los Gatos Creek

Fair

Santa Clara County, California · 04-SCL-009-11.30-LGTS · Structure no. 37 0138

Built
1956
69 years old, rebuilt 1992
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete Continuous
Length
130 ft
3 main spans
Daily traffic
35,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 9 over Los Gatos Creek is a concrete continuous tee beam carrying State Route 9 over Los Gatos Creek in Santa Clara County, California. It was built in 1956 and reconstructed in 1992, so it is 69 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 6 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 35,000 vehicles a day, roughly 3% of them trucks, projected to reach 44,003 by 2041. The structure is 130 ft (39.7 m) long and 83 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 9
CrossesLos Gatos Creek
Location04-SCL-009-11.30-LGTS
RouteState Highway 9
Coordinates37.22736, -121.9771
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length130 ft (39.7 m)
Longest span67 ft (20.4 m)
Deck width83 ft (25.2 m)
Roadway width74 ft (22.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,000 (2009)
Projected traffic44,003 by 2041
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 9 over Los Gatos Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1992.

What condition is State Route 9 over Los Gatos Creek 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 September 2023.

How much traffic does State Route 9 over Los Gatos Creek carry?

About 35,000 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is State Route 9 over Los Gatos Creek?

The structure is 130 ft (39.7 m) long with a longest span of 67 ft (20.4 m) and a deck 83 ft wide.

Who owns State Route 9 over Los Gatos Creek?

It is owned by the State Highway Agency.