US Bridges

Plummer Peak over Philpot Creek

Good

Trinity County, California · Near Philpot Campground · Structure no. 051452000001011

Built
2002
23 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
2 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Plummer Peak over Philpot Creek is a steel stringer/multi-beam or girder carrying Plummer Peak over Philpot Creek in Trinity County, California. It was built in 2002, so it is 23 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 27 ft (8.2 m) long and 16 ft wide.

CarriesPlummer Peak
CrossesPhilpot Creek
LocationNear Philpot Campground
RouteFederal Lands Road 30N31
Coordinates40.46644, -123.19
Functional classRural Local

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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation*: *
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating—
Inventory rating—

Structure

MaterialSteel
DeckWood or timber
Main spans2
Design loadH 20
Structure length27 ft (8.2 m)
Longest span27 ft (8.2 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Plummer Peak over Philpot Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Plummer Peak over Philpot 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 April 2024.

How much traffic does Plummer Peak over Philpot Creek carry?

About 50 vehicles per day (latest count).

How long is Plummer Peak over Philpot Creek?

The structure is 27 ft (8.2 m) long with a longest span of 27 ft (8.2 m) and a deck 16 ft wide.

Who owns Plummer Peak over Philpot Creek?

It is owned by the U.S. Forest Service.