US Bridges

State Route 16 over Arkansas Creek

Fair

Amador County, California · 10-AMA-016-R0.20 · Structure no. 26 0029

Built
1966
59 years old
Condition
Fair
inspected April 2021
Type
Culvert
Concrete Continuous
Length
26 ft
3 main spans
Daily traffic
6,550
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 16 over Arkansas Creek is a concrete continuous culvert carrying State Route 16 over Arkansas Creek in Amador County, California. It was built in 1966, so it is 59 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 6,550 vehicles a day, roughly 8% of them trucks, projected to reach 16,572 by 2043. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 47.8 mi (77 km).

CarriesState Route 16
CrossesArkansas Creek
Location10-AMA-016-R0.20
RouteState Highway 16
Coordinates38.48143, -121.02026
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,550 (2009)
Projected traffic16,572 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed47.8 mi (77 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 16 over Arkansas Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is State Route 16 over Arkansas 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 2021.

How much traffic does State Route 16 over Arkansas Creek carry?

About 6,550 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is State Route 16 over Arkansas Creek?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m).

Who owns State Route 16 over Arkansas Creek?

It is owned by the State Highway Agency.