US Bridges

State Route 49 over Rancheria Creek

Fair

Amador County, California · 10-AMA-049-12.14 · Structure no. 26 0017

Built
1983
42 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
330 ft
3 main spans
Daily traffic
11,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 49 over Rancheria Creek is a prestressed concrete continuous box beam or girders - multiple carrying State Route 49 over Rancheria Creek in Amador County, California. It was built in 1983, so it is 42 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 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 11,000 vehicles a day, roughly 9% of them trucks, projected to reach 8,430 by 2041. The structure is 330 ft (100.6 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesState Route 49
CrossesRancheria Creek
Location10-AMA-049-12.14
RouteState Highway 49
CountyAmador County
StateCalifornia
Coordinates38.42459, -120.84609
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.
Superstructure7 GoodSome minor problems.
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 rating52.1 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length330 ft (100.6 m)
Longest span120 ft (36.6 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,000 (2009)
Projected traffic8,430 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 49 over Rancheria Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is State Route 49 over Rancheria 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 49 over Rancheria Creek carry?

About 11,000 vehicles per day (2009 count), of which roughly 9% are trucks.

How long is State Route 49 over Rancheria Creek?

The structure is 330 ft (100.6 m) long with a longest span of 120 ft (36.6 m) and a deck 44 ft wide.

Who owns State Route 49 over Rancheria Creek?

It is owned by the State Highway Agency.