US Bridges

Payran ST over Petaluma River

Fair

Sonoma County, California · 0.3 MI E/O Petaluma Bl · Structure no. 20C0509

Built
1997
28 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
157 ft
3 main spans
Daily traffic
7,575
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

Payran ST over Petaluma River is a prestressed concrete stringer/multi-beam or girder carrying Payran ST over Petaluma River in Sonoma County, California. It was built in 1997, so it is 28 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 7,575 vehicles a day, roughly 5% of them trucks, projected to reach 11,014 by 2046. The structure is 157 ft (47.9 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesPayran ST
CrossesPetaluma River
Location0.3 MI E/O Petaluma Bl
RouteCity Street 0
CountySonoma County
StateCalifornia
Coordinates38.24543, -122.63891
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length157 ft (47.9 m)
Longest span60 ft (18.3 m)
Deck width54 ft (16.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,575 (2006)
Projected traffic11,014 by 2046
Trucks5%
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Payran ST over Petaluma River built?

It was built in 1997, making it 28 years old in 2025.

What condition is Payran ST over Petaluma River 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 June 2024.

How much traffic does Payran ST over Petaluma River carry?

About 7,575 vehicles per day (2006 count), of which roughly 5% are trucks.

How long is Payran ST over Petaluma River?

The structure is 157 ft (47.9 m) long with a longest span of 60 ft (18.3 m) and a deck 54 ft wide.

Who owns Payran ST over Petaluma River?

It is owned by the City or Municipal Highway Agency.