US Bridges

Stony Creek Road over Jackson Creek

Fair

Amador County, California · 5.4 MI Ne/O Lancha Pl RD · Structure no. 26C0038

Built
1955
70 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
94 ft
3 main spans
Daily traffic
1,023
2013 count
Owner
County
County Highway Agency

About this bridge

Stony Creek Road over Jackson Creek is a steel stringer/multi-beam or girder carrying Stony Creek Road over Jackson Creek in Amador County, California. It was built in 1955, so it is 70 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 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 1,023 vehicles a day, roughly 3% of them trucks, projected to reach 2,133 by 2042. The structure is 94 ft (28.7 m) long and 22 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesStony Creek Road
CrossesJackson Creek
Location5.4 MI Ne/O Lancha Pl RD
RouteCounty Highway 0
CountyAmador County
StateCalifornia
Coordinates38.31449, -120.83248
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating42.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length94 ft (28.7 m)
Longest span30 ft (9.1 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,023 (2013)
Projected traffic2,133 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stony Creek Road over Jackson Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Stony Creek Road over Jackson 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 April 2024.

How much traffic does Stony Creek Road over Jackson Creek carry?

About 1,023 vehicles per day (2013 count), of which roughly 3% are trucks.

How long is Stony Creek Road over Jackson Creek?

The structure is 94 ft (28.7 m) long with a longest span of 30 ft (9.1 m) and a deck 22 ft wide.

Who owns Stony Creek Road over Jackson Creek?

It is owned by the County Highway Agency.