US Bridges

Deer Flat RD over North Fork Battle Creek

Fair

Shasta County, California · 0.3 MI E Ritts Mill RD · Structure no. 06C0211

Built
1947
78 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
31 ft
2 main spans
Daily traffic
120
2014 count
Owner
County
County Highway Agency

About this bridge

Deer Flat RD over North Fork Battle Creek is a wood or timber stringer/multi-beam or girder carrying Deer Flat RD over North Fork Battle Creek in Shasta County, California. It was built in 1947, so it is 78 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 120 vehicles a day, roughly 10% of them trucks, projected to reach 319 by 2041. The structure is 31 ft (9.4 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesDeer Flat RD
CrossesNorth Fork Battle Creek
Location0.3 MI E Ritts Mill RD
RouteCounty Highway 0
Coordinates40.53728, -121.73269
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.5 US tons
Inventory rating20 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span15 ft (4.6 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2014)
Projected traffic319 by 2041
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Deer Flat RD over North Fork Battle Creek built?

It was built in 1947, making it 78 years old in 2025.

What condition is Deer Flat RD over North Fork Battle 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 April 2024.

How much traffic does Deer Flat RD over North Fork Battle Creek carry?

About 120 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Deer Flat RD over North Fork Battle Creek?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m) and a deck 16 ft wide.

Who owns Deer Flat RD over North Fork Battle Creek?

It is owned by the County Highway Agency.