US Bridges

Brookwood Ave over Matanzas CR (brookwood)

Fair

Sonoma County, California · Betn Clark St-Sonoma Ave · Structure no. 20C0163

Built
1951
74 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
116 ft
4 main spans
Daily traffic
9,400
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Brookwood Ave over Matanzas CR (brookwood) is a concrete continuous slab carrying Brookwood Ave over Matanzas CR (brookwood) in Sonoma County, California. It was built in 1951, so it is 74 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 9,400 vehicles a day, roughly 2% of them trucks, projected to reach 14,335 by 2046. The structure is 116 ft (35.4 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesBrookwood Ave
CrossesMatanzas CR (brookwood)
LocationBetn Clark St-Sonoma Ave
RouteCity Street 0
CountySonoma County
StateCalifornia
Coordinates38.43876, -122.702
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length116 ft (35.4 m)
Longest span30 ft (9.1 m)
Deck width47 ft (14.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,400 (2010)
Projected traffic14,335 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Brookwood Ave over Matanzas CR (brookwood) built?

It was built in 1951, making it 74 years old in 2025.

What condition is Brookwood Ave over Matanzas CR (brookwood) 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 August 2024.

How much traffic does Brookwood Ave over Matanzas CR (brookwood) carry?

About 9,400 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Brookwood Ave over Matanzas CR (brookwood)?

The structure is 116 ft (35.4 m) long with a longest span of 30 ft (9.1 m) and a deck 47 ft wide.

Who owns Brookwood Ave over Matanzas CR (brookwood)?

It is owned by the City or Municipal Highway Agency.