US Bridges

Scolfield RD #55 over Oar Creek

Good

Douglas County, Oregon · 2.5 MI SE of Reedsport · Structure no. 19C275 55 075

Built
1985
40 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
105 ft
1 main span
Daily traffic
827
2020 count
Owner
County
County Highway Agency

About this bridge

Scolfield RD #55 over Oar Creek is a prestressed concrete tee beam carrying Scolfield RD #55 over Oar Creek in Douglas County, Oregon. It was built in 1985, so it is 40 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 827 vehicles a day, roughly 10% of them trucks, projected to reach 937 by 2025. The structure is 105 ft (32 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesScolfield RD #55
CrossesOar Creek
Location2.5 MI SE of Reedsport
RouteCounty Highway C0055
StateOregon
Coordinates43.68345, -124.07317
Functional classRural Minor 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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.7 US tons
Inventory rating19 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length105 ft (32 m)
Longest span103 ft (31.4 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic827 (2020)
Projected traffic937 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 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 Scolfield RD #55 over Oar Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Scolfield RD #55 over Oar 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 August 2024.

How much traffic does Scolfield RD #55 over Oar Creek carry?

About 827 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Scolfield RD #55 over Oar Creek?

The structure is 105 ft (32 m) long with a longest span of 103 ft (31.4 m) and a deck 30 ft wide.

Who owns Scolfield RD #55 over Oar Creek?

It is owned by the County Highway Agency.