US Bridges

HWY 8000 over W. Fk. Millicoma River

FairPosted for load

Coos County, Oregon · HWY 8000 MP 2.0 · Structure no. 20892 000 00000

Built
1977
48 years old
Condition
Fair
inspected September 2024
Type
Channel Beam
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
10
2010 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

HWY 8000 over W. Fk. Millicoma River is a prestressed concrete channel beam carrying HWY 8000 over W. Fk. Millicoma River in Coos County, Oregon. It was built in 1977, so it is 48 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, roughly 1% of them trucks, projected to reach 15 by 2030. The structure is 70 ft (21.4 m) long and 17 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesHWY 8000
CrossesW. Fk. Millicoma River
LocationHWY 8000 MP 2.0
RouteState Lands Road 0
CountyCoos County
StateOregon
Coordinates43.57886, -123.95942
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28 US tons
Inventory rating21.6 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length70 ft (21.4 m)
Longest span70 ft (21.4 m)
Deck width17 ft (5.1 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2010)
Projected traffic15 by 2030
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$186,000
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY 8000 over W. Fk. Millicoma River built?

It was built in 1977, making it 48 years old in 2025.

What condition is HWY 8000 over W. Fk. Millicoma River 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 HWY 8000 over W. Fk. Millicoma River carry?

About 10 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is HWY 8000 over W. Fk. Millicoma River?

The structure is 70 ft (21.4 m) long with a longest span of 70 ft (21.4 m) and a deck 17 ft wide.

Who owns HWY 8000 over W. Fk. Millicoma River?

It is owned by the State Park, Forest, or Reservation Agency.