US Bridges

Magra Road over UP RR BNSF RY & AMTRAK

Fair

Placer County, California · 0.4 MI SW River Ridge RD · Structure no. 19C0027

Built
1928
97 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
164 ft
5 main spans
Daily traffic
212
2009 count
Owner
County
County Highway Agency

About this bridge

Magra Road over UP RR BNSF RY & AMTRAK is a concrete tee beam carrying Magra Road over UP RR BNSF RY & AMTRAK in Placer County, California. It was built in 1928, so it is 97 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 212 vehicles a day, roughly 4% of them trucks, projected to reach 809 by 2042. The structure is 164 ft (50 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMagra Road
CrossesUP RR BNSF RY & AMTRAK
Location0.4 MI SW River Ridge RD
RouteCounty Highway 0
CountyPlacer County
StateCalifornia
Coordinates39.15413, -120.88854
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
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 alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating28.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length164 ft (50 m)
Longest span47 ft (14.3 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic212 (2009)
Projected traffic809 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 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 Magra Road over UP RR BNSF RY & AMTRAK built?

It was built in 1928, making it 97 years old in 2025.

What condition is Magra Road over UP RR BNSF RY & AMTRAK 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 May 2024.

How much traffic does Magra Road over UP RR BNSF RY & AMTRAK carry?

About 212 vehicles per day (2009 count), of which roughly 4% are trucks.

How long is Magra Road over UP RR BNSF RY & AMTRAK?

The structure is 164 ft (50 m) long with a longest span of 47 ft (14.3 m) and a deck 27 ft wide.

Who owns Magra Road over UP RR BNSF RY & AMTRAK?

It is owned by the County Highway Agency.