US Bridges

State Route 116 over Fife Creek

Fair

Sonoma County, California · 04-SON-116-11.82 · Structure no. 20 0089

Built
1991
34 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
127 ft
2 main spans
Daily traffic
8,450
2014 count
Owner
State
State Highway Agency

About this bridge

State Route 116 over Fife Creek is a prestressed concrete continuous box beam or girders - multiple carrying State Route 116 over Fife Creek in Sonoma County, California. It was built in 1991, so it is 34 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 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 8,450 vehicles a day, roughly 4% of them trucks, projected to reach 8,598 by 2046. The structure is 127 ft (38.7 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesState Route 116
CrossesFife Creek
Location04-SON-116-11.82
RouteState Highway 116
Coordinates38.50188, -123.00174
Functional classRural 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length127 ft (38.7 m)
Longest span62 ft (18.9 m)
Deck width68 ft (20.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,450 (2014)
Projected traffic8,598 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 116 over Fife Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is State Route 116 over Fife 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 June 2024.

How much traffic does State Route 116 over Fife Creek carry?

About 8,450 vehicles per day (2014 count), of which roughly 4% are trucks.

How long is State Route 116 over Fife Creek?

The structure is 127 ft (38.7 m) long with a longest span of 62 ft (18.9 m) and a deck 68 ft wide.

Who owns State Route 116 over Fife Creek?

It is owned by the State Highway Agency.