US Bridges

US101 (hwy 9) over Shangri LA Creek

FairPosted for load

Clatsop County, Oregon · 005 MI S Seaside S C Lmts · Structure no. 03080 009 02248

Built
1960
65 years old
Condition
Fair
inspected November 2023
Type
Channel Beam
Concrete
Length
76 ft
4 main spans
Daily traffic
16,793
2022 count
Owner
State
State Highway Agency

About this bridge

US101 (hwy 9) over Shangri LA Creek is a concrete channel beam carrying US101 (hwy 9) over Shangri LA Creek in Clatsop County, Oregon. It was built in 1960, so it is 65 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. Its operating status is: posted for load restriction.

It carries about 16,793 vehicles a day, roughly 3% of them trucks, projected to reach 16,900 by 2042. The structure is 76 ft (23.2 m) long and 36 ft wide. If it were closed, the detour would be 32.3 mi (52 km).

Location

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CarriesUS101 (hwy 9)
CrossesShangri LA Creek
Location005 MI S Seaside S C Lmts
RouteU.S. Route 101
CountyClatsop County
StateOregon
Coordinates45.9748, -123.92747
Functional classUrban Other Principal Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating27.1 US tons
Inventory rating21.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width36 ft (10.9 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,793 (2022)
Projected traffic16,900 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.3 mi (52 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$389,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US101 (hwy 9) over Shangri LA Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is US101 (hwy 9) over Shangri LA 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 November 2023.

How much traffic does US101 (hwy 9) over Shangri LA Creek carry?

About 16,793 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is US101 (hwy 9) over Shangri LA Creek?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 36 ft wide.

Who owns US101 (hwy 9) over Shangri LA Creek?

It is owned by the State Highway Agency.