US Bridges

State Route 124 over Dry Creek

Fair

Amador County, California · 10-AMA-124-R8.50 · Structure no. 26 0028

Built
1965
60 years old, rebuilt 2007
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
375 ft
3 main spans
Daily traffic
2,050
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 124 over Dry Creek is a steel continuous stringer/multi-beam or girder carrying State Route 124 over Dry Creek in Amador County, California. It was built in 1965 and reconstructed in 2007, so it is 60 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 2,050 vehicles a day, projected to reach 7,909 by 2041. The structure is 375 ft (114.3 m) long and 42 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesState Route 124
CrossesDry Creek
Location10-AMA-124-R8.50
RouteState Highway 124
Coordinates38.42833, -120.87645
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length375 ft (114.3 m)
Longest span143 ft (43.6 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,050 (2009)
Projected traffic7,909 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 124 over Dry Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2007.

What condition is State Route 124 over Dry 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 2023.

How much traffic does State Route 124 over Dry Creek carry?

About 2,050 vehicles per day (2009 count).

How long is State Route 124 over Dry Creek?

The structure is 375 ft (114.3 m) long with a longest span of 143 ft (43.6 m) and a deck 42 ft wide.

Who owns State Route 124 over Dry Creek?

It is owned by the State Highway Agency.