US Bridges

Hwy. 2300 over W. Fk. Millicoma River

Poor

Coos County, Oregon · 3.1 Mi. from 1000 Junct. · Structure no. 20886 000 00000

Built
1984
41 years old
Condition
Poor
inspected September 2024
Type
Slab
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
25
2010 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Hwy. 2300 over W. Fk. Millicoma River is a prestressed concrete slab carrying Hwy. 2300 over W. Fk. Millicoma River in Coos County, Oregon. It was built in 1984, so it is 41 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 25 vehicles a day, roughly 50% of them trucks, projected to reach 36 by 2030. The structure is 70 ft (21.3 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesHwy. 2300
CrossesW. Fk. Millicoma River
Location3.1 Mi. from 1000 Junct.
RouteState Lands Road 0
CountyCoos County
StateOregon
Coordinates43.52403, -123.9744
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating61.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2010)
Projected traffic36 by 2030
Trucks50%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hwy. 2300 over W. Fk. Millicoma River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Hwy. 2300 over W. Fk. Millicoma River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Hwy. 2300 over W. Fk. Millicoma River carry?

About 25 vehicles per day (2010 count), of which roughly 50% are trucks.

How long is Hwy. 2300 over W. Fk. Millicoma River?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 16 ft wide.

Who owns Hwy. 2300 over W. Fk. Millicoma River?

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