US Bridges

State Route 3 over Coffee Creek

Fair

Trinity County, California · 02-TRI-003-67.70 · Structure no. 05 0060

Built
1962
63 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
222 ft
3 main spans
Daily traffic
645
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 3 over Coffee Creek is a steel stringer/multi-beam or girder carrying State Route 3 over Coffee Creek in Trinity County, California. It was built in 1962, so it is 63 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 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 645 vehicles a day, roughly 11% of them trucks, projected to reach 728 by 2046. The structure is 222 ft (67.7 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesState Route 3
CrossesCoffee Creek
Location02-TRI-003-67.70
RouteState Highway 3
CountyTrinity County
StateCalifornia
Coordinates41.08362, -122.706
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 protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating74.3 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length222 ft (67.7 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic645 (2009)
Projected traffic728 by 2046
Trucks11%
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 Coffee Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is State Route 3 over Coffee 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 Coffee Creek carry?

About 645 vehicles per day (2009 count), of which roughly 11% are trucks.

How long is State Route 3 over Coffee Creek?

The structure is 222 ft (67.7 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns State Route 3 over Coffee Creek?

It is owned by the State Highway Agency.