US Bridges

State Route 3 over Scorpion Creek

Fair

Trinity County, California · 02-TRI-003-68.95 · Structure no. 05 0029

Built
1968
57 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
114 ft
3 main spans
Daily traffic
230
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 3 over Scorpion Creek is a concrete continuous tee beam carrying State Route 3 over Scorpion Creek in Trinity County, California. It was built in 1968, so it is 57 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 230 vehicles a day, projected to reach 846 by 2046. The structure is 114 ft (34.7 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Route 3
CrossesScorpion Creek
Location02-TRI-003-68.95
RouteState Highway 3
Coordinates41.10145, -122.70627
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span44 ft (13.4 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2009)
Projected traffic846 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 3 over Scorpion Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is State Route 3 over Scorpion 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 2024.

How much traffic does State Route 3 over Scorpion Creek carry?

About 230 vehicles per day (2009 count).

How long is State Route 3 over Scorpion Creek?

The structure is 114 ft (34.7 m) long with a longest span of 44 ft (13.4 m) and a deck 34 ft wide.

Who owns State Route 3 over Scorpion Creek?

It is owned by the State Highway Agency.