US Bridges

CR 85 over Pit River

Fair

Modoc County, California · Approx 8 MI E of Lkt RD · Structure no. 03C0126

Built
2006
19 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
151 ft
2 main spans
Daily traffic
100
2007 count
Owner
County
County Highway Agency

About this bridge

CR 85 over Pit River is a concrete continuous box beam or girders - multiple carrying CR 85 over Pit River in Modoc County, California. It was built in 2006, so it is 19 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 6 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 100 vehicles a day, projected to reach 224 by 2045. The structure is 151 ft (46 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCR 85
CrossesPit River
LocationApprox 8 MI E of Lkt RD
RouteCounty Highway 0
CountyModoc County
StateCalifornia
Coordinates41.36828, -121.03105
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length151 ft (46 m)
Longest span75 ft (23 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2007)
Projected traffic224 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 CR 85 over Pit River built?

It was built in 2006, making it 19 years old in 2025.

What condition is CR 85 over Pit River 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 April 2023.

How much traffic does CR 85 over Pit River carry?

About 100 vehicles per day (2007 count).

How long is CR 85 over Pit River?

The structure is 151 ft (46 m) long with a longest span of 75 ft (23 m) and a deck 28 ft wide.

Who owns CR 85 over Pit River?

It is owned by the County Highway Agency.