US Bridges

State Route 49 over Amador Creek

Good

Amador County, California · 10-AMA-049-R10.56 · Structure no. 26 0043

Built
2007
18 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
620 ft
4 main spans
Daily traffic
13,900
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 49 over Amador Creek is a prestressed concrete continuous box beam or girders - multiple carrying State Route 49 over Amador Creek in Amador County, California. It was built in 2007, so it is 18 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,900 vehicles a day, projected to reach 8,430 by 2041. The structure is 620 ft (189 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesState Route 49
CrossesAmador Creek
Location10-AMA-049-R10.56
RouteState Highway 49
Coordinates38.41717, -120.84064
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 above top of footing
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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length620 ft (189 m)
Longest span177 ft (54 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,900 (2009)
Projected traffic8,430 by 2041
Trucks0%
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 Amador Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is State Route 49 over Amador Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does State Route 49 over Amador Creek carry?

About 13,900 vehicles per day (2009 count).

How long is State Route 49 over Amador Creek?

The structure is 620 ft (189 m) long with a longest span of 177 ft (54 m) and a deck 42 ft wide.

Who owns State Route 49 over Amador Creek?

It is owned by the State Highway Agency.