US Bridges

Midway Road over UP RR & AMTRAK

Fair

Butte County, California · 1.2MI No Dayton-Durham Hy · Structure no. 12C0255

Built
1975
50 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
236 ft
3 main spans
Daily traffic
5,636
2019 count
Owner
County
County Highway Agency

About this bridge

Midway Road over UP RR & AMTRAK is a prestressed concrete continuous box beam or girders - multiple carrying Midway Road over UP RR & AMTRAK in Butte County, California. It was built in 1975, so it is 50 years old, younger 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 5,636 vehicles a day, roughly 16% of them trucks, projected to reach 5,056 by 2046. The structure is 236 ft (71.9 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMidway Road
CrossesUP RR & AMTRAK
Location1.2MI No Dayton-Durham Hy
RouteCounty Highway 0
CountyButte County
StateCalifornia
Coordinates39.66386, -121.80615
Functional classRural Major 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 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 alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length236 ft (71.9 m)
Longest span108 ft (33 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,636 (2019)
Projected traffic5,056 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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 Midway Road over UP RR & AMTRAK built?

It was built in 1975, making it 50 years old in 2025.

What condition is Midway Road over UP RR & 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 Midway Road over UP RR & AMTRAK carry?

About 5,636 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is Midway Road over UP RR & AMTRAK?

The structure is 236 ft (71.9 m) long with a longest span of 108 ft (33 m) and a deck 42 ft wide.

Who owns Midway Road over UP RR & AMTRAK?

It is owned by the County Highway Agency.