US Bridges

County RD 9 over Cunningham Creek

Fair

Coos County, Oregon · 008 MI NE of Coquille · Structure no. 19665 009 00096

Built
2005
20 years old
Condition
Fair
inspected September 2024
Type
Slab
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
2,717
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 9 over Cunningham Creek is a prestressed concrete slab carrying County RD 9 over Cunningham Creek in Coos County, Oregon. It was built in 2005, so it is 20 years old, younger 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 2,717 vehicles a day, roughly 10% of them trucks, projected to reach 3,072 by 2025. The structure is 36 ft (11 m) long and 32 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesCounty RD 9
CrossesCunningham Creek
Location008 MI NE of Coquille
RouteCounty Highway 0A424
CountyCoos County
StateOregon
Coordinates43.19426, -124.18128
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.3 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length36 ft (11 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic2,717 (2020)
Projected traffic3,072 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 9 over Cunningham Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is County RD 9 over Cunningham 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 September 2024.

How much traffic does County RD 9 over Cunningham Creek carry?

About 2,717 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is County RD 9 over Cunningham Creek?

The structure is 36 ft (11 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns County RD 9 over Cunningham Creek?

It is owned by the County Highway Agency.