US Bridges

Joerger Road over Rock Creek

Fair

Placer County, California · 0.35 MI W SH 49 · Structure no. 19C0142

Built
1977
48 years old
Condition
Fair
inspected May 2024
Type
Slab
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
674
2003 count
Owner
County
County Highway Agency

About this bridge

Joerger Road over Rock Creek is a prestressed concrete slab carrying Joerger Road over Rock Creek in Placer County, California. It was built in 1977, so it is 48 years old, younger 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 674 vehicles a day, roughly 2% of them trucks, projected to reach 2,127 by 2042. The structure is 27 ft (8.2 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesJoerger Road
CrossesRock Creek
Location0.35 MI W SH 49
RouteCounty Highway 0
CountyPlacer County
StateCalifornia
Coordinates38.96374, -121.11018
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width35 ft (10.8 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic674 (2003)
Projected traffic2,127 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 Joerger Road over Rock Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Joerger Road 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 Joerger Road over Rock Creek carry?

About 674 vehicles per day (2003 count), of which roughly 2% are trucks.

How long is Joerger Road over Rock Creek?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 35 ft wide.

Who owns Joerger Road over Rock Creek?

It is owned by the County Highway Agency.