US Bridges

US 101 over Columbia R Megler

Good

Pacific County, Washington · Oregon Line · Structure no. 0007666A0000000

Built
1965
60 years old
Condition
Good
inspected March 2020
Type
Stringer/Multi-beam or Girder
Steel
Length
149 ft
1 main span
Daily traffic
6,800
2010 count
Owner
State
State Highway Agency

About this bridge

US 101 over Columbia R Megler is a steel stringer/multi-beam or girder carrying US 101 over Columbia R Megler in Pacific County, Washington. It was built in 1965, so it is 60 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,800 vehicles a day, roughly 10% of them trucks, projected to reach 11,400 by 2030. The structure is 149 ft (45.4 m) long and 33 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesUS 101
CrossesColumbia R Megler
LocationOregon Line
RouteU.S. Route 101
CountyPacific County
StateWashington
Coordinates46.24085, -123.87488
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2020
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating25.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length149 ft (45.4 m)
Longest span149 ft (45.4 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,800 (2010)
Projected traffic11,400 by 2030
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 101 over Columbia R Megler built?

It was built in 1965, making it 60 years old in 2025.

What condition is US 101 over Columbia R Megler in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2020.

How much traffic does US 101 over Columbia R Megler carry?

About 6,800 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is US 101 over Columbia R Megler?

The structure is 149 ft (45.4 m) long with a longest span of 149 ft (45.4 m) and a deck 33 ft wide.

Who owns US 101 over Columbia R Megler?

It is owned by the State Highway Agency.