US Bridges

US 26 (hwy 47) over Nehalem River & HWY 103

Fair

Clatsop County, Oregon · 001 MI NW Jewell JCT · Structure no. 02165 047 02173

Built
1939
86 years old
Condition
Fair
inspected May 2023
Type
Arch - Deck
Concrete
Length
627 ft
1 main span
Daily traffic
6,082
2022 count
Owner
State
State Highway Agency

About this bridge

US 26 (hwy 47) over Nehalem River & HWY 103 is a concrete arch - deck carrying US 26 (hwy 47) over Nehalem River & HWY 103 in Clatsop County, Oregon. It was built in 1939, so it is 86 years old, older 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 6,082 vehicles a day, roughly 10% of them trucks, projected to reach 6,400 by 2042. The structure is 627 ft (191.1 m) long and 35 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesUS 26 (hwy 47)
CrossesNehalem River & HWY 103
Location001 MI NW Jewell JCT
RouteU.S. Route 26
CountyClatsop County
StateOregon
Coordinates45.85891, -123.55517
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
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 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 rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+11 approach)
Design loadH 15
Structure length627 ft (191.1 m)
Longest span231 ft (70.4 m)
Deck width35 ft (10.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,082 (2022)
Projected traffic6,400 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed39.8 mi (64 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US 26 (hwy 47) over Nehalem River & HWY 103 built?

It was built in 1939, making it 86 years old in 2025.

What condition is US 26 (hwy 47) over Nehalem River & HWY 103 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 Nehalem River & HWY 103 carry?

About 6,082 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is US 26 (hwy 47) over Nehalem River & HWY 103?

The structure is 627 ft (191.1 m) long with a longest span of 231 ft (70.4 m) and a deck 35 ft wide.

Who owns US 26 (hwy 47) over Nehalem River & HWY 103?

It is owned by the State Highway Agency.