US Bridges

Channel Drive over Lake

Poor

Alameda County, California · 0.1 MI N Lake Blvd · Structure no. 33C0427

Built
1966
59 years old
Condition
Poor
inspected September 2024
Type
Arch - Deck
Steel
Length
20 ft
1 main span
Daily traffic
390
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

Channel Drive over Lake is a steel arch - deck carrying Channel Drive over Lake in Alameda County, California. It was built in 1966, so it is 59 years old, older 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 390 vehicles a day, roughly 2% of them trucks, projected to reach 439 by 2042. The structure is 20 ft (6.1 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesChannel Drive
CrossesLake
Location0.1 MI N Lake Blvd
RouteCity Street 0
CountyAlameda County
StateCalifornia
Coordinates37.55263, -122.03678
Functional classUrban Local

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
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width46 ft (14 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2011)
Projected traffic439 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$142,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Channel Drive over Lake built?

It was built in 1966, making it 59 years old in 2025.

What condition is Channel Drive over Lake 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 September 2024.

How much traffic does Channel Drive over Lake carry?

About 390 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is Channel Drive over Lake?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 46 ft wide.

Who owns Channel Drive over Lake?

It is owned by the City or Municipal Highway Agency.