US Bridges

Salem Ave over Periwinkle Creek

Fair

Linn County, Oregon · 0.25 MI E of Main ST · Structure no. 43C06 000 00000

Built
1978
47 years old, rebuilt 1987
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
8,446
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Salem Ave over Periwinkle Creek is a prestressed concrete stringer/multi-beam or girder carrying Salem Ave over Periwinkle Creek in Linn County, Oregon. It was built in 1978 and reconstructed in 1987, so it is 47 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 8,446 vehicles a day, roughly 5% of them trucks, projected to reach 12,360 by 2041. The structure is 77 ft (23.5 m) long and 50 ft wide.

CarriesSalem Ave
CrossesPeriwinkle Creek
Location0.25 MI E of Main ST
RouteCity Street 0
StateOregon
Coordinates44.63791, -123.08658
Functional classUrban Minor 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
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 rating44 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span75 ft (22.9 m)
Deck width50 ft (15.2 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,446 (2021)
Projected traffic12,360 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Salem Ave over Periwinkle Creek built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 1987.

What condition is Salem Ave over Periwinkle 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 October 2024.

How much traffic does Salem Ave over Periwinkle Creek carry?

About 8,446 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Salem Ave over Periwinkle Creek?

The structure is 77 ft (23.5 m) long with a longest span of 75 ft (22.9 m) and a deck 50 ft wide.

Who owns Salem Ave over Periwinkle Creek?

It is owned by the City or Municipal Highway Agency.