US Bridges

Critter Creek RD over Markham Ravine

FairPosted for load

Placer County, California · 0.9 MI S of Nicolaus RD · Structure no. 19C0093

Built
1930
95 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
25
2010 count
Owner
County
County Highway Agency

About this bridge

Critter Creek RD over Markham Ravine is a steel stringer/multi-beam or girder carrying Critter Creek RD over Markham Ravine in Placer County, California. It was built in 1930, so it is 95 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. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, roughly 2% of them trucks, projected to reach 34 by 2045. The structure is 41 ft (12.5 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesCritter Creek RD
CrossesMarkham Ravine
Location0.9 MI S of Nicolaus RD
RouteCounty Highway 0
CountyPlacer County
StateCalifornia
Coordinates38.88527, -121.43302
Functional classRural Local

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.
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating5 US tons
Inventory rating4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span40 ft (12.2 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2010)
Projected traffic34 by 2045
Trucks2%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Critter Creek RD over Markham Ravine built?

It was built in 1930, making it 95 years old in 2025.

What condition is Critter Creek RD over Markham Ravine 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 March 2023.

How much traffic does Critter Creek RD over Markham Ravine carry?

About 25 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Critter Creek RD over Markham Ravine?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 14 ft wide.

Who owns Critter Creek RD over Markham Ravine?

It is owned by the County Highway Agency.