US Bridges

Wilfred Ave over Belview-Wilfred Creek

Poor

Sonoma County, California · 0.2 MI E Primrose Ave · Structure no. 20C0275

Built
1963
62 years old
Condition
Poor
inspected June 2023
Type
Slab
Concrete Continuous
Length
157 ft
6 main spans
Daily traffic
1,857
2009 count
Owner
City
City or Municipal Highway Agency

About this bridge

Wilfred Ave over Belview-Wilfred Creek is a concrete continuous slab carrying Wilfred Ave over Belview-Wilfred Creek in Sonoma 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 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 1,857 vehicles a day, roughly 1% of them trucks, projected to reach 2,003 by 2045. The structure is 157 ft (47.9 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWilfred Ave
CrossesBelview-Wilfred Creek
Location0.2 MI E Primrose Ave
RouteCounty Highway 0
Coordinates38.36322, -122.73359
Functional classUrban Collector

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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length157 ft (47.9 m)
Longest span28 ft (8.5 m)
Deck width32 ft (9.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,857 (2009)
Projected traffic2,003 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$796,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Wilfred Ave over Belview-Wilfred Creek built?

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

What condition is Wilfred Ave over Belview-Wilfred Creek 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 June 2023.

How much traffic does Wilfred Ave over Belview-Wilfred Creek carry?

About 1,857 vehicles per day (2009 count), of which roughly 1% are trucks.

How long is Wilfred Ave over Belview-Wilfred Creek?

The structure is 157 ft (47.9 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.

Who owns Wilfred Ave over Belview-Wilfred Creek?

It is owned by the City or Municipal Highway Agency.