US Bridges

Interstate 80 EB over Donner Lake Road

Fair

Nevada County, California · 03-NEV-080-R9.01R · Structure no. 17 0076R

Built
1963
62 years old, rebuilt 1991
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
151 ft
3 main spans
Daily traffic
27,000
2020 count
Owner
State
State Highway Agency

About this bridge

Interstate 80 EB over Donner Lake Road is a steel stringer/multi-beam or girder carrying Interstate 80 EB over Donner Lake Road in Nevada County, California. It was built in 1963 and reconstructed in 1991, so it is 62 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 6 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 27,000 vehicles a day, projected to reach 44,692 by 2041. The structure is 151 ft (46.1 m) long and 54 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesInterstate 80 EB
CrossesDonner Lake Road
Location03-NEV-080-R9.01R
RouteInterstate 80
CountyNevada County
StateCalifornia
Coordinates39.33089, -120.28926
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length151 ft (46.1 m)
Longest span50 ft (15.2 m)
Deck width54 ft (16.6 m)
Roadway width50 ft (15.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,000 (2020)
Projected traffic44,692 by 2041
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Interstate 80 EB over Donner Lake Road built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1991.

What condition is Interstate 80 EB over Donner Lake Road 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 August 2024.

How much traffic does Interstate 80 EB over Donner Lake Road carry?

About 27,000 vehicles per day (2020 count).

How long is Interstate 80 EB over Donner Lake Road?

The structure is 151 ft (46.1 m) long with a longest span of 50 ft (15.2 m) and a deck 54 ft wide.

Who owns Interstate 80 EB over Donner Lake Road?

It is owned by the State Highway Agency.