US Bridges

Stwrt Pt-Skgg Sprg over Dry Creek (board Br)

Fair

Sonoma County, California · At Dam-End Dry Creek RD · Structure no. 20C0151

Built
1951
74 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
220 ft
3 main spans
Daily traffic
2,800
2015 count
Owner
County
County Highway Agency

About this bridge

Stwrt Pt-Skgg Sprg over Dry Creek (board Br) is a steel continuous stringer/multi-beam or girder carrying Stwrt Pt-Skgg Sprg over Dry Creek (board Br) in Sonoma County, California. It was built in 1951, so it is 74 years old, older 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 2,800 vehicles a day, roughly 1% of them trucks, projected to reach 3,489 by 2046. The structure is 220 ft (67.1 m) long and 31 ft wide. If it were closed, the detour would be 29.2 mi (47 km).

Location

Open in Google Maps
CarriesStwrt Pt-Skgg Sprg
CrossesDry Creek (board Br)
LocationAt Dam-End Dry Creek RD
RouteCounty Highway 0
CountySonoma County
StateCalifornia
Coordinates38.7197, -122.99903
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36.8 US tons
Inventory rating28.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length220 ft (67.1 m)
Longest span120 ft (36.6 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2015)
Projected traffic3,489 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.2 mi (47 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 Stwrt Pt-Skgg Sprg over Dry Creek (board Br) built?

It was built in 1951, making it 74 years old in 2025.

What condition is Stwrt Pt-Skgg Sprg over Dry Creek (board Br) 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 October 2024.

How much traffic does Stwrt Pt-Skgg Sprg over Dry Creek (board Br) carry?

About 2,800 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Stwrt Pt-Skgg Sprg over Dry Creek (board Br)?

The structure is 220 ft (67.1 m) long with a longest span of 120 ft (36.6 m) and a deck 31 ft wide.

Who owns Stwrt Pt-Skgg Sprg over Dry Creek (board Br)?

It is owned by the County Highway Agency.