US Bridges

Or 138 (hwy 231) over Calapooya Creek

Fair

Douglas County, Oregon · 00.20 MI N Sutherlin · Structure no. 20861 231 02210

Built
2009
16 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
300 ft
2 main spans
Daily traffic
2,398
2022 count
Owner
State
State Highway Agency

About this bridge

Or 138 (hwy 231) over Calapooya Creek is a steel continuous stringer/multi-beam or girder carrying Or 138 (hwy 231) over Calapooya Creek in Douglas County, Oregon. It was built in 2009, so it is 16 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 2,398 vehicles a day, roughly 16% of them trucks, projected to reach 2,800 by 2042. The structure is 300 ft (91.4 m) long and 47 ft wide. If it were closed, the detour would be 22.4 mi (36 km).

Location

Open in Google Maps
CarriesOr 138 (hwy 231)
CrossesCalapooya Creek
Location00.20 MI N Sutherlin
RouteState Highway 138
CountyDouglas County
StateOregon
Coordinates43.4002, -123.3742
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.1 US tons
Inventory rating32.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length300 ft (91.4 m)
Longest span180 ft (54.9 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,398 (2022)
Projected traffic2,800 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed22.4 mi (36 km)
TollOn a free road
National Highway SystemNo

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 138 (hwy 231) over Calapooya Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Or 138 (hwy 231) over Calapooya 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 February 2024.

How much traffic does Or 138 (hwy 231) over Calapooya Creek carry?

About 2,398 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Or 138 (hwy 231) over Calapooya Creek?

The structure is 300 ft (91.4 m) long with a longest span of 180 ft (54.9 m) and a deck 47 ft wide.

Who owns Or 138 (hwy 231) over Calapooya Creek?

It is owned by the State Highway Agency.