US Bridges

County RD 322A over Newton Creek

FairPosted for load

Douglas County, Oregon · 2.0 MI N of Roseburg · Structure no. 19C420322A00003

Built
1970
55 years old
Condition
Fair
inspected April 2024
Type
Girder and Floorbeam System
Steel
Length
56 ft
1 main span
Daily traffic
1,277
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

County RD 322A over Newton Creek is a steel girder and floorbeam system carrying County RD 322A over Newton Creek in Douglas County, Oregon. It was built in 1970, so it is 55 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,277 vehicles a day, roughly 3% of them trucks, projected to reach 1,441 by 2025. The structure is 56 ft (17.1 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCounty RD 322A
CrossesNewton Creek
Location2.0 MI N of Roseburg
RouteCounty Highway C322A
CountyDouglas County
StateOregon
Coordinates43.24377, -123.34279
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 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 rating17.5 US tons
Inventory rating13.6 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckOpen grating
Main spans1
Design loadH 20
Structure length56 ft (17.1 m)
Longest span54 ft (16.5 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,277 (2020)
Projected traffic1,441 by 2025
Trucks3%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 County RD 322A over Newton Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is County RD 322A over Newton 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 April 2024.

How much traffic does County RD 322A over Newton Creek carry?

About 1,277 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is County RD 322A over Newton Creek?

The structure is 56 ft (17.1 m) long with a longest span of 54 ft (16.5 m) and a deck 28 ft wide.

Who owns County RD 322A over Newton Creek?

It is owned by the City or Municipal Highway Agency.