US Bridges

NB US Highway 101 over Coyote Creek

Poor

Santa Clara County, California · 04-SCL-101-29.83 · Structure no. 37 0102R

Built
1947
78 years old, rebuilt 1990
Condition
Poor
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
403 ft
4 main spans
Daily traffic
64,000
2009 count
Owner
State
State Highway Agency

About this bridge

NB US Highway 101 over Coyote Creek is a steel stringer/multi-beam or girder carrying NB US Highway 101 over Coyote Creek in Santa Clara County, California. It was built in 1947 and reconstructed in 1990, so it is 78 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 64,000 vehicles a day, roughly 9% of them trucks, projected to reach 96,033 by 2045. The structure is 403 ft (122.8 m) long and 72 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesNB US Highway 101
CrossesCoyote Creek
Location04-SCL-101-29.83
RouteU.S. Route 101
Coordinates37.27831, -121.80592
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating47.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length403 ft (122.8 m)
Longest span100 ft (30.5 m)
Deck width72 ft (21.9 m)
Roadway width68 ft (20.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,000 (2009)
Projected traffic96,033 by 2045
Trucks9%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 NB US Highway 101 over Coyote Creek built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1990.

What condition is NB US Highway 101 over Coyote Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2023.

How much traffic does NB US Highway 101 over Coyote Creek carry?

About 64,000 vehicles per day (2009 count), of which roughly 9% are trucks.

How long is NB US Highway 101 over Coyote Creek?

The structure is 403 ft (122.8 m) long with a longest span of 100 ft (30.5 m) and a deck 72 ft wide.

Who owns NB US Highway 101 over Coyote Creek?

It is owned by the State Highway Agency.