US Bridges

Hamilton Ave over State Route 17

Fair

Santa Clara County, California · 04-SCL-017-12.34-CMB · Structure no. 37 0136

Built
1959
66 years old, rebuilt 1991
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
224 ft
2 main spans
Daily traffic
25,336
2010 count
Owner
State
State Highway Agency

About this bridge

Hamilton Ave over State Route 17 is a concrete continuous box beam or girders - multiple carrying Hamilton Ave over State Route 17 in Santa Clara County, California. It was built in 1959 and reconstructed in 1991, so it is 66 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 25,336 vehicles a day, roughly 2% of them trucks, projected to reach 33,890 by 2046. The structure is 224 ft (68.3 m) long and 101 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHamilton Ave
CrossesState Route 17
Location04-SCL-017-12.34-CMB
RouteCity Street 0C199
CountySanta Clara County
StateCalifornia
Coordinates37.29424, -121.93858
Functional classUrban Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length224 ft (68.3 m)
Longest span74 ft (22.6 m)
Deck width101 ft (30.9 m)
Roadway width84 ft (25.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,336 (2010)
Projected traffic33,890 by 2046
Trucks2%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hamilton Ave over State Route 17 built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1991.

What condition is Hamilton Ave over State Route 17 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 July 2024.

How much traffic does Hamilton Ave over State Route 17 carry?

About 25,336 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Hamilton Ave over State Route 17?

The structure is 224 ft (68.3 m) long with a longest span of 74 ft (22.6 m) and a deck 101 ft wide.

Who owns Hamilton Ave over State Route 17?

It is owned by the State Highway Agency.