US Bridges

State Route 128 over Foote Creek

Good

Sonoma County, California · 04-SON-128-20.72 · Structure no. 20 0042

Built
1982
43 years old
Condition
Good
inspected October 2022
Type
Slab
Concrete Continuous
Length
67 ft
2 main spans
Daily traffic
2,125
2014 count
Owner
State
State Highway Agency

About this bridge

State Route 128 over Foote Creek is a concrete continuous slab carrying State Route 128 over Foote Creek in Sonoma County, California. It was built in 1982, so it is 43 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,125 vehicles a day, projected to reach 3,300 by 2040. The structure is 67 ft (20.4 m) long and 35 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

CarriesState Route 128
CrossesFoote Creek
Location04-SON-128-20.72
RouteState Highway 128
Coordinates38.63999, -122.69284
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating99.3 US tons
Inventory rating59.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length67 ft (20.4 m)
Longest span33 ft (10.1 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,125 (2014)
Projected traffic3,300 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 128 over Foote Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is State Route 128 over Foote Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2022.

How much traffic does State Route 128 over Foote Creek carry?

About 2,125 vehicles per day (2014 count).

How long is State Route 128 over Foote Creek?

The structure is 67 ft (20.4 m) long with a longest span of 33 ft (10.1 m) and a deck 35 ft wide.

Who owns State Route 128 over Foote Creek?

It is owned by the State Highway Agency.