US Bridges

Penryn Road over Interstate Route 80

Fair

Placer County, California · 03-PLA-080-10.35 · Structure no. 19 0099

Built
1959
66 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
332 ft
4 main spans
Daily traffic
425
1998 count
Owner
State
State Highway Agency

About this bridge

Penryn Road over Interstate Route 80 is a concrete continuous box beam or girders - multiple carrying Penryn Road over Interstate Route 80 in Placer County, California. It was built in 1959, so it is 66 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 425 vehicles a day, roughly 1% of them trucks, projected to reach 1,041 by 2045. The structure is 332 ft (101.2 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPenryn Road
CrossesInterstate Route 80
Location03-PLA-080-10.35
RouteCounty Highway 0
CountyPlacer County
StateCalifornia
Coordinates38.8344, -121.16862
Functional classRural Minor 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.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.2 US tons
Inventory rating45 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length332 ft (101.2 m)
Longest span102 ft (31.1 m)
Deck width37 ft (11.3 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic425 (1998)
Projected traffic1,041 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 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 Penryn Road over Interstate Route 80 built?

It was built in 1959, making it 66 years old in 2025.

What condition is Penryn Road over Interstate Route 80 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 October 2023.

How much traffic does Penryn Road over Interstate Route 80 carry?

About 425 vehicles per day (1998 count), of which roughly 1% are trucks.

How long is Penryn Road over Interstate Route 80?

The structure is 332 ft (101.2 m) long with a longest span of 102 ft (31.1 m) and a deck 37 ft wide.

Who owns Penryn Road over Interstate Route 80?

It is owned by the State Highway Agency.