US Bridges

Redwood Retreat RD over Little Arthur Creek

Fair

Santa Clara County, California · 0.3 MI W Watsonville RD · Structure no. 37C0562

Built
1909
116 years old
Condition
Fair
inspected September 2024
Type
Arch - Deck
Concrete
Length
31 ft
1 main span
Daily traffic
400
2011 count
Owner
County
County Highway Agency

About this bridge

Redwood Retreat RD over Little Arthur Creek is a concrete arch - deck carrying Redwood Retreat RD over Little Arthur Creek in Santa Clara County, California. It was built in 1909, so it is 116 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 5 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 400 vehicles a day, roughly 5% of them trucks, projected to reach 612 by 2042. The structure is 31 ft (9.5 m) long and 19 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesRedwood Retreat RD
CrossesLittle Arthur Creek
Location0.3 MI W Watsonville RD
RouteCounty Highway 0
Coordinates37.02803, -121.65927
Functional classRural Minor 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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length31 ft (9.5 m)
Longest span24 ft (7.3 m)
Deck width19 ft (5.7 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2011)
Projected traffic612 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Redwood Retreat RD over Little Arthur Creek built?

It was built in 1909, making it 116 years old in 2025.

What condition is Redwood Retreat RD over Little Arthur 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 September 2024.

How much traffic does Redwood Retreat RD over Little Arthur Creek carry?

About 400 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Redwood Retreat RD over Little Arthur Creek?

The structure is 31 ft (9.5 m) long with a longest span of 24 ft (7.3 m) and a deck 19 ft wide.

Who owns Redwood Retreat RD over Little Arthur Creek?

It is owned by the County Highway Agency.