US Bridges

County RD 83 over South Fork Deer Creek

Fair

Douglas County, Oregon · 3.6 MI S of Dixonville · Structure no. 19C082008300107

Built
1955
70 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
93 ft
1 main span
Daily traffic
332
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 83 over South Fork Deer Creek is a steel continuous stringer/multi-beam or girder carrying County RD 83 over South Fork Deer Creek in Douglas County, Oregon. It was built in 1955, so it is 70 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 332 vehicles a day, roughly 3% of them trucks, projected to reach 375 by 2025. The structure is 93 ft (28.3 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCounty RD 83
CrossesSouth Fork Deer Creek
Location3.6 MI S of Dixonville
RouteCounty Highway C0083
StateOregon
Coordinates43.17051, -123.22855
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating39.7 US tons
Inventory rating30.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 20
Structure length93 ft (28.3 m)
Longest span57 ft (17.4 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic332 (2020)
Projected traffic375 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

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 County RD 83 over South Fork Deer Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is County RD 83 over South Fork Deer 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 2023.

How much traffic does County RD 83 over South Fork Deer Creek carry?

About 332 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is County RD 83 over South Fork Deer Creek?

The structure is 93 ft (28.3 m) long with a longest span of 57 ft (17.4 m) and a deck 22 ft wide.

Who owns County RD 83 over South Fork Deer Creek?

It is owned by the County Highway Agency.