US Bridges

Little Brown Ck RD over Little Browns Creek

Fair

Trinity County, California · 2.0 MI N/E S.R. 299 · Structure no. 05C0194

Built
1974
51 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
155
2010 count
Owner
County
County Highway Agency

About this bridge

Little Brown Ck RD over Little Browns Creek is a steel stringer/multi-beam or girder carrying Little Brown Ck RD over Little Browns Creek in Trinity County, California. It was built in 1974, so it is 51 years old, younger 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 155 vehicles a day, roughly 1% of them trucks, projected to reach 165 by 2042. The structure is 42 ft (12.8 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLittle Brown Ck RD
CrossesLittle Browns Creek
Location2.0 MI N/E S.R. 299
RouteCounty Highway 0
Coordinates40.71036, -122.90204
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating74.3 US tons
Inventory rating44.3 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span38 ft (11.7 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic155 (2010)
Projected traffic165 by 2042
Trucks1%
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 Little Brown Ck RD over Little Browns Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Little Brown Ck RD over Little Browns 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 Little Brown Ck RD over Little Browns Creek carry?

About 155 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Little Brown Ck RD over Little Browns Creek?

The structure is 42 ft (12.8 m) long with a longest span of 38 ft (11.7 m) and a deck 30 ft wide.

Who owns Little Brown Ck RD over Little Browns Creek?

It is owned by the County Highway Agency.