US Bridges

US 26 (hwy 47) over West Humbug Creek

Fair

Clatsop County, Oregon · 025 MI SE Summit Cst Rnge · Structure no. 22057 047 01628

Built
2014
11 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
6,234
2022 count
Owner
State
State Highway Agency

About this bridge

US 26 (hwy 47) over West Humbug Creek is a prestressed concrete stringer/multi-beam or girder carrying US 26 (hwy 47) over West Humbug Creek in Clatsop County, Oregon. It was built in 2014, so it is 11 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 6,234 vehicles a day, roughly 10% of them trucks, projected to reach 8,700 by 2042. The structure is 77 ft (23.5 m) long and 47 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesUS 26 (hwy 47)
CrossesWest Humbug Creek
Location025 MI SE Summit Cst Rnge
RouteU.S. Route 26
StateOregon
Coordinates45.8939, -123.64173
Functional classRural Principal Arterial - Other

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 inspectionMay 2023
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 alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length77 ft (23.5 m)
Longest span77 ft (23.5 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,234 (2022)
Projected traffic8,700 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 26 (hwy 47) over West Humbug Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is US 26 (hwy 47) over West Humbug 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 May 2023.

How much traffic does US 26 (hwy 47) over West Humbug Creek carry?

About 6,234 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is US 26 (hwy 47) over West Humbug Creek?

The structure is 77 ft (23.5 m) long with a longest span of 77 ft (23.5 m) and a deck 47 ft wide.

Who owns US 26 (hwy 47) over West Humbug Creek?

It is owned by the State Highway Agency.