US Bridges

Pleasant Valley RD over Squirrel Creek

Fair

Nevada County, California · 0.4 MI North of Route 20 · Structure no. 17C0017

Built
1966
59 years old, rebuilt 1998
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
60 ft
2 main spans
Daily traffic
10,787
2014 count
Owner
County
County Highway Agency

About this bridge

Pleasant Valley RD over Squirrel Creek is a concrete continuous slab carrying Pleasant Valley RD over Squirrel Creek in Nevada County, California. It was built in 1966 and reconstructed in 1998, 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 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 10,787 vehicles a day, roughly 2% of them trucks, projected to reach 8,091 by 2041. The structure is 60 ft (18.3 m) long and 55 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesPleasant Valley RD
CrossesSquirrel Creek
Location0.4 MI North of Route 20
RouteCounty Highway 0
Coordinates39.21046, -121.20209
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,787 (2014)
Projected traffic8,091 by 2041
Trucks2%
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 Pleasant Valley RD over Squirrel Creek built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1998.

What condition is Pleasant Valley RD over Squirrel 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 March 2023.

How much traffic does Pleasant Valley RD over Squirrel Creek carry?

About 10,787 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Pleasant Valley RD over Squirrel Creek?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 55 ft wide.

Who owns Pleasant Valley RD over Squirrel Creek?

It is owned by the County Highway Agency.