US Bridges

State Route 70 over Abandoned RR Row

Fair

Butte County, California · 03-BUT-070-15.13-OVL · Structure no. 12 0165

Built
1963
62 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
147 ft
3 main spans
Daily traffic
20,100
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 70 over Abandoned RR Row is a concrete continuous tee beam carrying State Route 70 over Abandoned RR Row in Butte County, California. It was built in 1963, so it is 62 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 20,100 vehicles a day, roughly 15% of them trucks, projected to reach 25,566 by 2043. The structure is 147 ft (44.9 m) long and 89 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesState Route 70
CrossesAbandoned RR Row
Location03-BUT-070-15.13-OVL
RouteState Highway 70
Coordinates39.51542, -121.57205
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionMay 2024
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 rating42.5 US tons
Inventory rating31.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length147 ft (44.9 m)
Longest span73 ft (22.3 m)
Deck width89 ft (27 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,100 (2020)
Projected traffic25,566 by 2043
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 70 over Abandoned RR Row built?

It was built in 1963, making it 62 years old in 2025.

What condition is State Route 70 over Abandoned RR Row 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 State Route 70 over Abandoned RR Row carry?

About 20,100 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is State Route 70 over Abandoned RR Row?

The structure is 147 ft (44.9 m) long with a longest span of 73 ft (22.3 m) and a deck 89 ft wide.

Who owns State Route 70 over Abandoned RR Row?

It is owned by the State Highway Agency.