US Bridges

State Route 174 over UP RR BNSF RY & AMTRAK

Fair

Placer County, California · 03-PLA-174-0.62-CFX · Structure no. 19 0055

Built
1938
87 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
504 ft
5 main spans
Daily traffic
4,950
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 174 over UP RR BNSF RY & AMTRAK is a steel continuous stringer/multi-beam or girder carrying State Route 174 over UP RR BNSF RY & AMTRAK in Placer County, California. It was built in 1938, so it is 87 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 4,950 vehicles a day, projected to reach 7,934 by 2045. The structure is 504 ft (153.6 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesState Route 174
CrossesUP RR BNSF RY & AMTRAK
Location03-PLA-174-0.62-CFX
RouteState Highway 174
CountyPlacer County
StateCalifornia
Coordinates39.10331, -120.94952
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length504 ft (153.6 m)
Longest span102 ft (31.1 m)
Deck width33 ft (10.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,950 (2009)
Projected traffic7,934 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed9.9 mi (16 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 State Route 174 over UP RR BNSF RY & AMTRAK built?

It was built in 1938, making it 87 years old in 2025.

What condition is State Route 174 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 October 2023.

How much traffic does State Route 174 over UP RR BNSF RY & AMTRAK carry?

About 4,950 vehicles per day (2009 count).

How long is State Route 174 over UP RR BNSF RY & AMTRAK?

The structure is 504 ft (153.6 m) long with a longest span of 102 ft (31.1 m) and a deck 33 ft wide.

Who owns State Route 174 over UP RR BNSF RY & AMTRAK?

It is owned by the State Highway Agency.