US Bridges

Linn West DR over Sodom Ditch

Fair

Linn County, Oregon · 055MI East Shedd · Structure no. 12553A002600308

Built
1977
48 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
121 ft
1 main span
Daily traffic
1,133
2021 count
Owner
County
County Highway Agency

About this bridge

Linn West DR over Sodom Ditch is a prestressed concrete box beam or girders - multiple carrying Linn West DR over Sodom Ditch in Linn County, Oregon. It was built in 1977, so it is 48 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 1,133 vehicles a day, roughly 20% of them trucks, projected to reach 1,596 by 2041. The structure is 121 ft (36.9 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesLinn West DR
CrossesSodom Ditch
Location055MI East Shedd
RouteCounty Highway C0026
CountyLinn County
StateOregon
Coordinates44.42522, -123.04886
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1 (+1 approach)
Design loadHS 20
Structure length121 ft (36.9 m)
Longest span84 ft (25.6 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,133 (2021)
Projected traffic1,596 by 2041
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Linn West DR over Sodom Ditch built?

It was built in 1977, making it 48 years old in 2025.

What condition is Linn West DR over Sodom Ditch 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 Linn West DR over Sodom Ditch carry?

About 1,133 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is Linn West DR over Sodom Ditch?

The structure is 121 ft (36.9 m) long with a longest span of 84 ft (25.6 m) and a deck 33 ft wide.

Who owns Linn West DR over Sodom Ditch?

It is owned by the County Highway Agency.