US Bridges

Stony Point RD over Gossage Creek

Fair

Sonoma County, California · 0.1 MI N/O SH 116 · Structure no. 20C0501

Built
1994
31 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
54 ft
2 main spans
Daily traffic
10,600
2015 count
Owner
County
County Highway Agency

About this bridge

Stony Point RD over Gossage Creek is a concrete slab carrying Stony Point RD over Gossage Creek in Sonoma County, California. It was built in 1994, so it is 31 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 5 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 10,600 vehicles a day, roughly 5% of them trucks, projected to reach 18,302 by 2040. The structure is 54 ft (16.6 m) long and 57 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesStony Point RD
CrossesGossage Creek
Location0.1 MI N/O SH 116
RouteCounty Highway 0
CountySonoma County
StateCalifornia
Coordinates38.3369, -122.73807
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: 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 typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length54 ft (16.6 m)
Longest span26 ft (7.9 m)
Deck width57 ft (17.3 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,600 (2015)
Projected traffic18,302 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Stony Point RD over Gossage Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Stony Point RD over Gossage Creek 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 May 2023.

How much traffic does Stony Point RD over Gossage Creek carry?

About 10,600 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Stony Point RD over Gossage Creek?

The structure is 54 ft (16.6 m) long with a longest span of 26 ft (7.9 m) and a deck 57 ft wide.

Who owns Stony Point RD over Gossage Creek?

It is owned by the County Highway Agency.