US Bridges

Packer Lake Road over Salmon Creek

Poor

Sierra County, California · West of Gold Lakes Road · Structure no. 13C0029

Built
1960
65 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
200
1998 count
Owner
County
County Highway Agency

About this bridge

Packer Lake Road over Salmon Creek is a steel stringer/multi-beam or girder carrying Packer Lake Road over Salmon Creek in Sierra County, California. It was built in 1960, so it is 65 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 200 vehicles a day, roughly 1% of them trucks, projected to reach 312 by 2042. The structure is 62 ft (18.9 m) long and 23 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPacker Lake Road
CrossesSalmon Creek
LocationWest of Gold Lakes Road
RouteCounty Highway 0
Coordinates39.6209, -120.61105
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating28.9 US tons
Inventory rating22.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length62 ft (18.9 m)
Longest span57 ft (17.4 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (1998)
Projected traffic312 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$494,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Packer Lake Road over Salmon Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Packer Lake Road over Salmon Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Packer Lake Road over Salmon Creek carry?

About 200 vehicles per day (1998 count), of which roughly 1% are trucks.

How long is Packer Lake Road over Salmon Creek?

The structure is 62 ft (18.9 m) long with a longest span of 57 ft (17.4 m) and a deck 23 ft wide.

Who owns Packer Lake Road over Salmon Creek?

It is owned by the County Highway Agency.