US Bridges

Cosmo Lane over W Little Llagas Creek

Good

Santa Clara County, California · 200 M W/O Monterey RD · Structure no. 37C0408

Built
1991
34 years old
Condition
Good
inspected January 2022
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
1,100
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Cosmo Lane over W Little Llagas Creek is a concrete continuous culvert carrying Cosmo Lane over W Little Llagas Creek in Santa Clara County, California. It was built in 1991, so it is 34 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 1,100 vehicles a day, roughly 5% of them trucks, projected to reach 1,283 by 2044. The structure is 32 ft (9.8 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCosmo Lane
CrossesW Little Llagas Creek
Location200 M W/O Monterey RD
RouteCity Street 0
Coordinates37.11802, -121.64743
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width59 ft (18.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2010)
Projected traffic1,283 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

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 Cosmo Lane over W Little Llagas Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Cosmo Lane over W Little Llagas 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 January 2022.

How much traffic does Cosmo Lane over W Little Llagas Creek carry?

About 1,100 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Cosmo Lane over W Little Llagas Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 59 ft wide.

Who owns Cosmo Lane over W Little Llagas Creek?

It is owned by the City or Municipal Highway Agency.