US Bridges

Patterson Pass RD over Flood Control Channel

Fair

Alameda County, California · 0.4 KM East of S Vasco RD · Structure no. 33C0413

Built
2000
25 years old
Condition
Fair
inspected November 2021
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
3,260
2004 count
Owner
City
City or Municipal Highway Agency

About this bridge

Patterson Pass RD over Flood Control Channel is a concrete continuous culvert carrying Patterson Pass RD over Flood Control Channel in Alameda County, California. It was built in 2000, so it is 25 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 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 3,260 vehicles a day, roughly 4% of them trucks, projected to reach 4,508 by 2043. The structure is 28 ft (8.5 m) long and 104 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesPatterson Pass RD
CrossesFlood Control Channel
Location0.4 KM East of S Vasco RD
RouteCity Street 0
CountyAlameda County
StateCalifornia
Coordinates37.69575, -121.71479
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span14 ft (4.2 m)
Deck width104 ft (31.8 m)
Roadway width68 ft (20.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,260 (2004)
Projected traffic4,508 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

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 Patterson Pass RD over Flood Control Channel built?

It was built in 2000, making it 25 years old in 2025.

What condition is Patterson Pass RD over Flood Control Channel 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 November 2021.

How much traffic does Patterson Pass RD over Flood Control Channel carry?

About 3,260 vehicles per day (2004 count), of which roughly 4% are trucks.

How long is Patterson Pass RD over Flood Control Channel?

The structure is 28 ft (8.5 m) long with a longest span of 14 ft (4.2 m) and a deck 104 ft wide.

Who owns Patterson Pass RD over Flood Control Channel?

It is owned by the City or Municipal Highway Agency.