US Bridges

Dry Creek RD over Rock Creek

Fair

Placer County, California · 0.35 MI W Placer Hills RD · Structure no. 19C0163

Built
1970
55 years old
Condition
Fair
inspected May 2024
Type
Arch - Deck
Steel
Length
24 ft
1 main span
Daily traffic
4,870
2006 count
Owner
County
County Highway Agency

About this bridge

Dry Creek RD over Rock Creek is a steel arch - deck carrying Dry Creek RD over Rock Creek in Placer County, California. It was built in 1970, so it is 55 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 4,870 vehicles a day, roughly 2% of them trucks, projected to reach 4,471 by 2042. The structure is 24 ft (7.3 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesDry Creek RD
CrossesRock Creek
Location0.35 MI W Placer Hills RD
RouteCounty Highway 0
CountyPlacer County
StateCalifornia
Coordinates38.95644, -121.10723
Functional classUrban 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
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width32 ft (9.7 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,870 (2006)
Projected traffic4,471 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Dry Creek RD over Rock Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Dry Creek RD over Rock 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 May 2024.

How much traffic does Dry Creek RD over Rock Creek carry?

About 4,870 vehicles per day (2006 count), of which roughly 2% are trucks.

How long is Dry Creek RD over Rock Creek?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 32 ft wide.

Who owns Dry Creek RD over Rock Creek?

It is owned by the County Highway Agency.