US Bridges

Sierra College Bl over Interstate 80

Good

Placer County, California · 03-PLA-080-7.10 · Structure no. 19 0180

Built
2009
16 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
344 ft
2 main spans
Daily traffic
1,500
2009 count
Owner
State
State Highway Agency

About this bridge

Sierra College Bl over Interstate 80 is a prestressed concrete continuous box beam or girders - multiple carrying Sierra College Bl over Interstate 80 in Placer County, California. It was built in 2009, so it is 16 years old, younger 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 1,500 vehicles a day, roughly 5% of them trucks, projected to reach 5,345 by 2045. The structure is 344 ft (105 m) long and 93 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesSierra College Bl
CrossesInterstate 80
Location03-PLA-080-7.10
RouteCity Street 0
Coordinates38.80338, -121.20558
Functional classUrban Minor Arterial

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.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length344 ft (105 m)
Longest span171 ft (52.2 m)
Deck width93 ft (28.2 m)
Roadway width81 ft (24.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2009)
Projected traffic5,345 by 2045
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed4.3 mi (7 km)
TollOn a free road
National Highway SystemNo

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 Sierra College Bl over Interstate 80 built?

It was built in 2009, making it 16 years old in 2025.

What condition is Sierra College Bl over Interstate 80 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 October 2023.

How much traffic does Sierra College Bl over Interstate 80 carry?

About 1,500 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Sierra College Bl over Interstate 80?

The structure is 344 ft (105 m) long with a longest span of 171 ft (52.2 m) and a deck 93 ft wide.

Who owns Sierra College Bl over Interstate 80?

It is owned by the State Highway Agency.