US Bridges

US 26 (hwy 047) over South Fork Quartz Creek

Fair

Clatsop County, Oregon · 13.4 MI W of Nehalem R · Structure no. 02166 047 02447

Built
1938
87 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete
Length
27 ft
1 main span
Daily traffic
6,082
2022 count
Owner
State
State Highway Agency

About this bridge

US 26 (hwy 047) over South Fork Quartz Creek is a concrete tee beam carrying US 26 (hwy 047) over South Fork Quartz Creek in Clatsop County, Oregon. It was built in 1938, so it is 87 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 5 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 27 ft (8.2 m) long and 36 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesUS 26 (hwy 047)
CrossesSouth Fork Quartz Creek
Location13.4 MI W of Nehalem R
RouteU.S. Route 26
StateOregon
Coordinates45.83839, -123.5143
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.3 US tons
Inventory rating22.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length27 ft (8.2 m)
Longest span27 ft (8.2 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 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
CrossesWaterway
Detour if closed24.9 mi (40 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 047) over South Fork Quartz Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is US 26 (hwy 047) over South Fork Quartz 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 047) over South Fork Quartz Creek carry?

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

How long is US 26 (hwy 047) over South Fork Quartz Creek?

The structure is 27 ft (8.2 m) long with a longest span of 27 ft (8.2 m) and a deck 36 ft wide.

Who owns US 26 (hwy 047) over South Fork Quartz Creek?

It is owned by the State Highway Agency.