US Bridges

Green Valley RD over Casserly Creek Trib No 1

Poor

Santa Cruz County, California · 4.1 MI N Freedom Blvd · Structure no. 36C0117

Built
1915
110 years old
Condition
Poor
inspected May 2024
Type
Arch - Deck
Concrete
Length
24 ft
1 main span
Daily traffic
500
2016 count
Owner
County
County Highway Agency

About this bridge

Green Valley RD over Casserly Creek Trib No 1 is a concrete arch - deck carrying Green Valley RD over Casserly Creek Trib No 1 in Santa Cruz County, California. It was built in 1915, so it is 110 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 2 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 500 vehicles a day, roughly 10% of them trucks, projected to reach 850 by 2041. The structure is 24 ft (7.4 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesGreen Valley RD
CrossesCasserly Creek Trib No 1
Location4.1 MI N Freedom Blvd
RouteCounty Highway 0
Coordinates36.98779, -121.77737
Functional classRural Minor Collector

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
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; extensive scour has occurred
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.4 US tons
Inventory rating10 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length24 ft (7.4 m)
Longest span24 ft (7.4 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2016)
Projected traffic850 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$181,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Green Valley RD over Casserly Creek Trib No 1 built?

It was built in 1915, making it 110 years old in 2025.

What condition is Green Valley RD over Casserly Creek Trib No 1 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 May 2024.

How much traffic does Green Valley RD over Casserly Creek Trib No 1 carry?

About 500 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is Green Valley RD over Casserly Creek Trib No 1?

The structure is 24 ft (7.4 m) long with a longest span of 24 ft (7.4 m) and a deck 23 ft wide.

Who owns Green Valley RD over Casserly Creek Trib No 1?

It is owned by the County Highway Agency.