US Bridges

Casserly Road over Green Valley Creek

Fair

Santa Cruz County, California · @ Wheelock Road · Structure no. 36C0150

Built
1966
59 years old
Condition
Fair
inspected May 2022
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
500
2016 count
Owner
County
County Highway Agency

About this bridge

Casserly Road over Green Valley Creek is a concrete continuous culvert carrying Casserly Road over Green Valley Creek in Santa Cruz 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 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 500 vehicles a day, roughly 5% of them trucks, projected to reach 800 by 2042. The structure is 31 ft (9.4 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCasserly Road
CrossesGreen Valley Creek
Location@ Wheelock Road
RouteCounty Highway 0
CountySanta Cruz County
StateCalifornia
Coordinates36.97232, -121.7648
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span14 ft (4.4 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2016)
Projected traffic800 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Casserly Road over Green Valley Creek built?

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

What condition is Casserly Road over Green Valley 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 May 2022.

How much traffic does Casserly Road over Green Valley Creek carry?

About 500 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Casserly Road over Green Valley Creek?

The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.4 m) and a deck 38 ft wide.

Who owns Casserly Road over Green Valley Creek?

It is owned by the County Highway Agency.