US Bridges

Aldercroft Hts RD over Los Gatos Creek

PoorPosted for load

Santa Clara County, California · 2.38 MI S Los Gatos Sc RD · Structure no. 37C0508

Built
1956
69 years old
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
53 ft
1 main span
Daily traffic
30
2020 count
Owner
County
County Highway Agency

About this bridge

Aldercroft Hts RD over Los Gatos Creek is a wood or timber stringer/multi-beam or girder carrying Aldercroft Hts RD over Los Gatos Creek in Santa Clara County, California. It was built in 1956, so it is 69 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 4 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. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, roughly 1% of them trucks, projected to reach 52 by 2042. The structure is 53 ft (16.1 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesAldercroft Hts RD
CrossesLos Gatos Creek
Location2.38 MI S Los Gatos Sc RD
RouteCounty Highway 0
Coordinates37.15139, -121.96056
Functional classRural Local

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
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating9.3 US tons
Inventory rating4.6 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length53 ft (16.1 m)
Longest span51 ft (15.5 m)
Deck width16 ft (4.9 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2020)
Projected traffic52 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$304,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Aldercroft Hts RD over Los Gatos Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Aldercroft Hts RD over Los Gatos Creek 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 January 2024.

How much traffic does Aldercroft Hts RD over Los Gatos Creek carry?

About 30 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Aldercroft Hts RD over Los Gatos Creek?

The structure is 53 ft (16.1 m) long with a longest span of 51 ft (15.5 m) and a deck 16 ft wide.

Who owns Aldercroft Hts RD over Los Gatos Creek?

It is owned by the County Highway Agency.