US Bridges

Eagle Lake Road over South Yuba River

Good

Nevada County, California · 200 Ft N/O RTE 80 · Structure no. 17C0042

Built
1964
61 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
162 ft
3 main spans
Daily traffic
50
2018 count
Owner
County
County Highway Agency

About this bridge

Eagle Lake Road over South Yuba River is a concrete continuous tee beam carrying Eagle Lake Road over South Yuba River in Nevada County, California. It was built in 1964, so it is 61 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.

It carries about 50 vehicles a day, roughly 5% of them trucks, projected to reach 111 by 2046. The structure is 162 ft (49.4 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesEagle Lake Road
CrossesSouth Yuba River
Location200 Ft N/O RTE 80
RouteCounty Highway 0
Coordinates39.32981, -120.57407
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length162 ft (49.4 m)
Longest span63 ft (19.2 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2018)
Projected traffic111 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Eagle Lake Road over South Yuba River built?

It was built in 1964, making it 61 years old in 2025.

What condition is Eagle Lake Road over South Yuba River 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 August 2024.

How much traffic does Eagle Lake Road over South Yuba River carry?

About 50 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Eagle Lake Road over South Yuba River?

The structure is 162 ft (49.4 m) long with a longest span of 63 ft (19.2 m) and a deck 34 ft wide.

Who owns Eagle Lake Road over South Yuba River?

It is owned by the County Highway Agency.