US Bridges

Or 221 (hwy 150) over Gibson Creek

Fair

Polk County, Oregon · 00.70 Salem N City Limits · Structure no. 18440 150 01841

Built
2000
25 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
86 ft
1 main span
Daily traffic
17,007
2022 count
Owner
State
State Highway Agency

About this bridge

Or 221 (hwy 150) over Gibson Creek is a prestressed concrete box beam or girders - multiple carrying Or 221 (hwy 150) over Gibson Creek in Polk County, Oregon. It was built in 2000, so it is 25 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 17,007 vehicles a day, roughly 6% of them trucks, projected to reach 20,600 by 2042. The structure is 86 ft (26.2 m) long and 93 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

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CarriesOr 221 (hwy 150)
CrossesGibson Creek
Location00.70 Salem N City Limits
RouteState Highway 221
CountyPolk County
StateOregon
Coordinates44.97478, -123.06879
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating23.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length86 ft (26.2 m)
Longest span86 ft (26.2 m)
Deck width93 ft (28.2 m)
Roadway width65 ft (19.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,007 (2022)
Projected traffic20,600 by 2042
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.2 mi (18 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 Or 221 (hwy 150) over Gibson Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Or 221 (hwy 150) over Gibson 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 June 2023.

How much traffic does Or 221 (hwy 150) over Gibson Creek carry?

About 17,007 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Or 221 (hwy 150) over Gibson Creek?

The structure is 86 ft (26.2 m) long with a longest span of 86 ft (26.2 m) and a deck 93 ft wide.

Who owns Or 221 (hwy 150) over Gibson Creek?

It is owned by the State Highway Agency.