US Bridges

County RD 26C over Roberts Creek

Good

Douglas County, Oregon · 1 Mile N of Kellys Korner · Structure no. 19C523 26 002

Built
1992
33 years old
Condition
Good
inspected July 2023
Type
Slab
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
8,893
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 26C over Roberts Creek is a prestressed concrete slab carrying County RD 26C over Roberts Creek in Douglas County, Oregon. It was built in 1992, so it is 33 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,893 vehicles a day, roughly 10% of them trucks, projected to reach 9,643 by 2025. The structure is 71 ft (21.6 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCounty RD 26C
CrossesRoberts Creek
Location1 Mile N of Kellys Korner
RouteCounty Highway 0A849
StateOregon
Coordinates43.1594, -123.3819
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length71 ft (21.6 m)
Longest span70 ft (21.3 m)
Deck width56 ft (17.1 m)
Roadway width48 ft (14.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,893 (2020)
Projected traffic9,643 by 2025
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 County RD 26C over Roberts Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is County RD 26C over Roberts Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does County RD 26C over Roberts Creek carry?

About 8,893 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is County RD 26C over Roberts Creek?

The structure is 71 ft (21.6 m) long with a longest span of 70 ft (21.3 m) and a deck 56 ft wide.

Who owns County RD 26C over Roberts Creek?

It is owned by the County Highway Agency.