US Bridges

Garden Bar RD over Coon Creek

Poor

Placer County, California · 3 MI N Pleasant RD · Structure no. 19C0106

Built
1945
80 years old, rebuilt 1960
Condition
Poor
inspected April 2023
Type
Tee Beam
Concrete
Length
79 ft
2 main spans
Daily traffic
209
2010 count
Owner
County
County Highway Agency

About this bridge

Garden Bar RD over Coon Creek is a concrete tee beam carrying Garden Bar RD over Coon Creek in Placer County, California. It was built in 1945 and reconstructed in 1960, so it is 80 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 209 vehicles a day, roughly 1% of them trucks, projected to reach 245 by 2041. The structure is 79 ft (24.1 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesGarden Bar RD
CrossesCoon Creek
Location3 MI N Pleasant RD
RouteCounty Highway 0
Coordinates38.98244, -121.2194
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
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating32.8 US tons
Inventory rating19.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length79 ft (24.1 m)
Longest span38 ft (11.6 m)
Deck width20 ft (6.2 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic209 (2010)
Projected traffic245 by 2041
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-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$575,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Garden Bar RD over Coon Creek built?

It was built in 1945, making it 80 years old in 2025. It was reconstructed in 1960.

What condition is Garden Bar RD over Coon 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 April 2023.

How much traffic does Garden Bar RD over Coon Creek carry?

About 209 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Garden Bar RD over Coon Creek?

The structure is 79 ft (24.1 m) long with a longest span of 38 ft (11.6 m) and a deck 20 ft wide.

Who owns Garden Bar RD over Coon Creek?

It is owned by the County Highway Agency.