US Bridges

Neibur RD over Potter Creek

Fair

Clackamas County, Oregon · 00.5 MI NE of Redland RD · Structure no. 06215 000

Built
1963
62 years old
Condition
Fair
inspected May 2023
Type
Channel Beam
Concrete
Length
24 ft
1 main span
Daily traffic
268
2020 count
Owner
County
County Highway Agency

About this bridge

Neibur RD over Potter Creek is a concrete channel beam carrying Neibur RD over Potter Creek in Clackamas County, Oregon. It was built in 1963, so it is 62 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 268 vehicles a day, roughly 10% of them trucks, projected to reach 287 by 2025. The structure is 24 ft (7.3 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesNeibur RD
CrossesPotter Creek
Location00.5 MI NE of Redland RD
RouteCounty Highway C0423
CountyClackamas County
StateOregon
Coordinates45.35851, -122.54493
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic268 (2020)
Projected traffic287 by 2025
Trucks10%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Neibur RD over Potter Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Neibur RD over Potter 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 May 2023.

How much traffic does Neibur RD over Potter Creek carry?

About 268 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Neibur RD over Potter Creek?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 28 ft wide.

Who owns Neibur RD over Potter Creek?

It is owned by the County Highway Agency.