US Bridges

Browns Mountain RD over Little Browns Creek

Fair

Trinity County, California · 0.1 MI E Litle Brwn Ck RD · Structure no. 05C0175

Built
1997
28 years old, rebuilt 2001
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
202
2010 count
Owner
County
County Highway Agency

About this bridge

Browns Mountain RD over Little Browns Creek is a steel stringer/multi-beam or girder carrying Browns Mountain RD over Little Browns Creek in Trinity County, California. It was built in 1997 and reconstructed in 2001, so it is 28 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 202 vehicles a day, projected to reach 216 by 2042. The structure is 55 ft (16.7 m) long and 21 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesBrowns Mountain RD
CrossesLittle Browns Creek
Location0.1 MI E Litle Brwn Ck RD
RouteCounty Highway 0
CountyTrinity County
StateCalifornia
Coordinates40.69629, -122.92408
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.9 US tons
Inventory rating16.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length55 ft (16.7 m)
Longest span48 ft (14.5 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic202 (2010)
Projected traffic216 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Browns Mountain RD over Little Browns Creek built?

It was built in 1997, making it 28 years old in 2025. It was reconstructed in 2001.

What condition is Browns Mountain 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 Browns Mountain RD over Little Browns Creek carry?

About 202 vehicles per day (2010 count).

How long is Browns Mountain RD over Little Browns Creek?

The structure is 55 ft (16.7 m) long with a longest span of 48 ft (14.5 m) and a deck 21 ft wide.

Who owns Browns Mountain RD over Little Browns Creek?

It is owned by the County Highway Agency.