US Bridges

Coffee Creek Road over North Fork Coffee Creek

Good

Trinity County, California · 8.7 MI West of S.R. 3 · Structure no. 05C0203

Built
1977
48 years old
Condition
Good
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
76
2000 count
Owner
County
County Highway Agency

About this bridge

Coffee Creek Road over North Fork Coffee Creek is a prestressed concrete tee beam carrying Coffee Creek Road over North Fork Coffee Creek in Trinity 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 76 vehicles a day, projected to reach 107 by 2042. The structure is 62 ft (18.9 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCoffee Creek Road
CrossesNorth Fork Coffee Creek
Location8.7 MI West of S.R. 3
RouteCounty Highway 0
Coordinates41.12101, -122.83517
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating96.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span59 ft (18 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic76 (2000)
Projected traffic107 by 2042
Trucks—
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

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 Coffee Creek Road over North Fork Coffee Creek built?

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

What condition is Coffee Creek Road over North Fork Coffee Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does Coffee Creek Road over North Fork Coffee Creek carry?

About 76 vehicles per day (2000 count).

How long is Coffee Creek Road over North Fork Coffee Creek?

The structure is 62 ft (18.9 m) long with a longest span of 59 ft (18 m) and a deck 29 ft wide.

Who owns Coffee Creek Road over North Fork Coffee Creek?

It is owned by the County Highway Agency.