US Bridges

Robinson RD over Sucker CR

PoorPosted for load

Linn County, Oregon · 002 MI S CR 4 · Structure no. 12940 630 00329

Built
1967
58 years old
Condition
Poor
inspected July 2024
Type
Slab
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
227
2021 count
Owner
County
County Highway Agency

About this bridge

Robinson RD over Sucker CR is a prestressed concrete slab carrying Robinson RD over Sucker CR in Linn County, Oregon. It was built in 1967, so it is 58 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 227 vehicles a day, roughly 10% of them trucks, projected to reach 330 by 2041. The structure is 31 ft (9.4 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesRobinson RD
CrossesSucker CR
Location002 MI S CR 4
RouteCounty Highway C0630
StateOregon
Coordinates44.70583, -122.91687
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating15.8 US tons
Inventory rating12.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic227 (2021)
Projected traffic330 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Robinson RD over Sucker CR built?

It was built in 1967, making it 58 years old in 2025.

What condition is Robinson RD over Sucker CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Robinson RD over Sucker CR carry?

About 227 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Robinson RD over Sucker CR?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 24 ft wide.

Who owns Robinson RD over Sucker CR?

It is owned by the County Highway Agency.