US Bridges

Railroad Ave over UP RR Parkside Railroad

Poor

Contra Costa County, California · 0.1 MI S of Central Ave · Structure no. 28C0448

Built
1988
37 years old
Condition
Poor
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
254 ft
3 main spans
Daily traffic
10,000
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Railroad Ave over UP RR Parkside Railroad is a prestressed concrete continuous box beam or girders - multiple carrying Railroad Ave over UP RR Parkside Railroad in Contra Costa County, California. It was built in 1988, so it is 37 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 10,000 vehicles a day, roughly 5% of them trucks, projected to reach 16,409 by 2040. The structure is 254 ft (77.3 m) long and 84 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRailroad Ave
CrossesUP RR Parkside Railroad
Location0.1 MI S of Central Ave
RouteCity Street 0
CountyContra Costa County
StateCalifornia
Coordinates38.02348, -121.88702
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length254 ft (77.3 m)
Longest span90 ft (27.4 m)
Deck width84 ft (25.6 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2020)
Projected traffic16,409 by 2040
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Railroad Ave over UP RR Parkside Railroad built?

It was built in 1988, making it 37 years old in 2025.

What condition is Railroad Ave over UP RR Parkside Railroad in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does Railroad Ave over UP RR Parkside Railroad carry?

About 10,000 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Railroad Ave over UP RR Parkside Railroad?

The structure is 254 ft (77.3 m) long with a longest span of 90 ft (27.4 m) and a deck 84 ft wide.

Who owns Railroad Ave over UP RR Parkside Railroad?

It is owned by the City or Municipal Highway Agency.