US Bridges

Alamitos Road over Alamitos Creek

Good

Santa Clara County, California · At Bertram Road · Structure no. 37C0160

Built
1966
59 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
105 ft
1 main span
Daily traffic
360
2015 count
Owner
County
County Highway Agency

About this bridge

Alamitos Road over Alamitos Creek is a steel stringer/multi-beam or girder carrying Alamitos Road over Alamitos Creek in Santa Clara County, California. It was built in 1966, so it is 59 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 360 vehicles a day, roughly 5% of them trucks, projected to reach 470 by 2044. The structure is 105 ft (31.9 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAlamitos Road
CrossesAlamitos Creek
LocationAt Bertram Road
RouteCounty Highway 0
Coordinates37.17355, -121.82442
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating66.8 US tons
Inventory rating51.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length105 ft (31.9 m)
Longest span100 ft (30.5 m)
Deck width47 ft (14.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2015)
Projected traffic470 by 2044
Trucks5%
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

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 Alamitos Road over Alamitos Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is Alamitos Road over Alamitos 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 Alamitos Road over Alamitos Creek carry?

About 360 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Alamitos Road over Alamitos Creek?

The structure is 105 ft (31.9 m) long with a longest span of 100 ft (30.5 m) and a deck 47 ft wide.

Who owns Alamitos Road over Alamitos Creek?

It is owned by the County Highway Agency.