US Bridges

Fawn Lodge Road over Grass Valley Creek

FairPosted for load

Trinity County, California · 0.1 MI North of SR 299 · Structure no. 05F0001

Built
1959
66 years old
Condition
Fair
inspected August 2023
Type
Truss - Thru
Steel
Length
63 ft
1 main span
Daily traffic
50
2011 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Fawn Lodge Road over Grass Valley Creek is a steel truss - thru carrying Fawn Lodge Road over Grass Valley Creek in Trinity County, California. It was built in 1959, so it is 66 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 5% of them trucks, projected to reach 56 by 2043. The structure is 63 ft (19.2 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesFawn Lodge Road
CrossesGrass Valley Creek
Location0.1 MI North of SR 299
RouteState Lands Road 0
Coordinates40.6761, -122.83081
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating18.2 US tons
Inventory rating13.2 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOpen grating
Main spans1
Design loadUnknown
Structure length63 ft (19.2 m)
Longest span60 ft (18.3 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2011)
Projected traffic56 by 2043
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 Fawn Lodge Road over Grass Valley Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Fawn Lodge Road over Grass Valley 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 2023.

How much traffic does Fawn Lodge Road over Grass Valley Creek carry?

About 50 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Fawn Lodge Road over Grass Valley Creek?

The structure is 63 ft (19.2 m) long with a longest span of 60 ft (18.3 m) and a deck 12 ft wide.

Who owns Fawn Lodge Road over Grass Valley Creek?

It is owned by the State Park, Forest, or Reservation Agency.