US Bridges

E Side Potter Vly over Burright Creek

Fair

Mendocino County, California · 3.8 MI N RTE 20 · Structure no. 10C0104

Built
1935
90 years old, rebuilt 1983
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
67 ft
1 main span
Daily traffic
1,821
2011 count
Owner
County
County Highway Agency

About this bridge

E Side Potter Vly over Burright Creek is a concrete tee beam carrying E Side Potter Vly over Burright Creek in Mendocino County, California. It was built in 1935 and reconstructed in 1983, so it is 90 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 1,821 vehicles a day, roughly 2% of them trucks, projected to reach 2,180 by 2041. The structure is 67 ft (20.4 m) long and 41 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesE Side Potter Vly
CrossesBurright Creek
Location3.8 MI N RTE 20
RouteCounty Highway 0
CountyMendocino County
StateCalifornia
Coordinates39.28609, -123.09446
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionAugust 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span67 ft (20.4 m)
Deck width41 ft (12.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,821 (2011)
Projected traffic2,180 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 E Side Potter Vly over Burright Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1983.

What condition is E Side Potter Vly over Burright 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 E Side Potter Vly over Burright Creek carry?

About 1,821 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is E Side Potter Vly over Burright Creek?

The structure is 67 ft (20.4 m) long with a longest span of 67 ft (20.4 m) and a deck 41 ft wide.

Who owns E Side Potter Vly over Burright Creek?

It is owned by the County Highway Agency.