US Bridges

Wise RD over Coon Creek

Fair

Placer County, California · 1.0 MI E Brewer RD · Structure no. 19C0128

Built
1955
70 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
95
2006 count
Owner
County
County Highway Agency

About this bridge

Wise RD over Coon Creek is a steel stringer/multi-beam or girder carrying Wise RD over Coon Creek in Placer County, California. It was built in 1955, so it is 70 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 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 95 vehicles a day, roughly 3% of them trucks, projected to reach 267 by 2041. The structure is 54 ft (16.5 m) long and 22 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesWise RD
CrossesCoon Creek
Location1.0 MI E Brewer RD
RouteCounty Highway 0
CountyPlacer County
StateCalifornia
Coordinates38.92614, -121.43822
Functional classRural Minor Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 inspectionAugust 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating22.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span52 ft (15.7 m)
Deck width22 ft (6.7 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2006)
Projected traffic267 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wise RD over Coon Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Wise RD over Coon 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 August 2023.

How much traffic does Wise RD over Coon Creek carry?

About 95 vehicles per day (2006 count), of which roughly 3% are trucks.

How long is Wise RD over Coon Creek?

The structure is 54 ft (16.5 m) long with a longest span of 52 ft (15.7 m) and a deck 22 ft wide.

Who owns Wise RD over Coon Creek?

It is owned by the County Highway Agency.