US Bridges

Bridge Arbor N RD over Clover Creek

GoodPosted for load

Lake County, California · South of SR 20 in Uper Lk · Structure no. 14C0022

Built
1931
94 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
80
2016 count
Owner
County
County Highway Agency

About this bridge

Bridge Arbor N RD over Clover Creek is a steel stringer/multi-beam or girder carrying Bridge Arbor N RD over Clover Creek in Lake County, California. It was built in 1931, so it is 94 years old, older 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. Its operating status is: posted for load restriction.

It carries about 80 vehicles a day, roughly 2% of them trucks, projected to reach 122 by 2042. The structure is 45 ft (13.7 m) long and 23 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBridge Arbor N RD
CrossesClover Creek
LocationSouth of SR 20 in Uper Lk
RouteCounty Highway 0
Coordinates39.16184, -122.91154
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating11 US tons
Inventory rating6.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span42 ft (12.8 m)
Deck width23 ft (7.1 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2016)
Projected traffic122 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bridge Arbor N RD over Clover Creek built?

It was built in 1931, making it 94 years old in 2025.

What condition is Bridge Arbor N RD over Clover 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 February 2024.

How much traffic does Bridge Arbor N RD over Clover Creek carry?

About 80 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Bridge Arbor N RD over Clover Creek?

The structure is 45 ft (13.7 m) long with a longest span of 42 ft (12.8 m) and a deck 23 ft wide.

Who owns Bridge Arbor N RD over Clover Creek?

It is owned by the County Highway Agency.