US Bridges

County RD 85G over Mcmullen/M.Fk Coquille R

Fair

Coos County, Oregon · 0006 from JCT RD 85 an 42 · Structure no. 11C65I008500006

Built
1967
58 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
203 ft
3 main spans
Daily traffic
15
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 85G over Mcmullen/M.Fk Coquille R is a prestressed concrete stringer/multi-beam or girder carrying County RD 85G over Mcmullen/M.Fk Coquille R in Coos County, Oregon. It was built in 1967, so it is 58 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 15 vehicles a day, roughly 1% of them trucks, projected to reach 17 by 2025. The structure is 203 ft (61.9 m) long and 17 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesCounty RD 85G
CrossesMcmullen/M.Fk Coquille R
Location0006 from JCT RD 85 an 42
RouteCounty Highway C085G
CountyCoos County
StateOregon
Coordinates43.03474, -124.0402
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length203 ft (61.9 m)
Longest span100 ft (30.5 m)
Deck width17 ft (5.2 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2020)
Projected traffic17 by 2025
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 County RD 85G over Mcmullen/M.Fk Coquille R built?

It was built in 1967, making it 58 years old in 2025.

What condition is County RD 85G over Mcmullen/M.Fk Coquille R 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 September 2024.

How much traffic does County RD 85G over Mcmullen/M.Fk Coquille R carry?

About 15 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is County RD 85G over Mcmullen/M.Fk Coquille R?

The structure is 203 ft (61.9 m) long with a longest span of 100 ft (30.5 m) and a deck 17 ft wide.

Who owns County RD 85G over Mcmullen/M.Fk Coquille R?

It is owned by the County Highway Agency.