US Bridges

Geysers Road over Camacho Creek

Poor

Sonoma County, California · 24 MI N of SR 128 · Structure no. 20C0229

Built
1974
51 years old
Condition
Poor
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
3 main spans
Daily traffic
60
2013 count
Owner
County
County Highway Agency

About this bridge

Geysers Road over Camacho Creek is a steel stringer/multi-beam or girder carrying Geysers Road over Camacho Creek in Sonoma County, California. It was built in 1974, so it is 51 years old, younger 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 60 vehicles a day, roughly 5% of them trucks, projected to reach 84 by 2043. The structure is 92 ft (28 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesGeysers Road
CrossesCamacho Creek
Location24 MI N of SR 128
RouteCounty Highway 0
Coordinates38.81781, -122.95307
Functional classRural 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
Deck4 PoorAdvanced section loss, deterioration, 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 protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating22.8 US tons
Inventory rating17.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length92 ft (28 m)
Longest span59 ft (18.1 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2013)
Projected traffic84 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$337,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Geysers Road over Camacho Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Geysers Road over Camacho 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 July 2023.

How much traffic does Geysers Road over Camacho Creek carry?

About 60 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Geysers Road over Camacho Creek?

The structure is 92 ft (28 m) long with a longest span of 59 ft (18.1 m) and a deck 24 ft wide.

Who owns Geysers Road over Camacho Creek?

It is owned by the County Highway Agency.