US Bridges

County RD 77 over Dodge Canyon Creek

FairPosted for load

Douglas County, Oregon · 2.3 MI W of Sutherlin · Structure no. 19C179007700006

Built
1973
52 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
70 ft
1 main span
Daily traffic
536
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 77 over Dodge Canyon Creek is a steel stringer/multi-beam or girder carrying County RD 77 over Dodge Canyon Creek in Douglas County, Oregon. It was built in 1973, so it is 52 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 536 vehicles a day, roughly 5% of them trucks, projected to reach 606 by 2025. The structure is 70 ft (21.3 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCounty RD 77
CrossesDodge Canyon Creek
Location2.3 MI W of Sutherlin
RouteCounty Highway C0077
CountyDouglas County
StateOregon
Coordinates43.40238, -123.38039
Functional classRural Major Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating23.6 US tons
Inventory rating18.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadH 20
Structure length70 ft (21.3 m)
Longest span50 ft (15.2 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic536 (2020)
Projected traffic606 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 77 over Dodge Canyon Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is County RD 77 over Dodge Canyon 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 77 over Dodge Canyon Creek carry?

About 536 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is County RD 77 over Dodge Canyon Creek?

The structure is 70 ft (21.3 m) long with a longest span of 50 ft (15.2 m) and a deck 33 ft wide.

Who owns County RD 77 over Dodge Canyon Creek?

It is owned by the County Highway Agency.