US Bridges

Or 140 (hwy 270) over Geary Canal

Fair

Klamath County, Oregon · 09.9 MI NW HWY 21 JCT · Structure no. 18142 270 05883

Built
1997
28 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
235 ft
3 main spans
Daily traffic
4,413
2022 count
Owner
State
State Highway Agency

About this bridge

Or 140 (hwy 270) over Geary Canal is a prestressed concrete continuous stringer/multi-beam or girder carrying Or 140 (hwy 270) over Geary Canal in Klamath County, Oregon. It was built in 1997, so it is 28 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 4,413 vehicles a day, roughly 25% of them trucks, projected to reach 4,600 by 2042. The structure is 235 ft (71.6 m) long and 43 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesOr 140 (hwy 270)
CrossesGeary Canal
Location09.9 MI NW HWY 21 JCT
RouteState Highway 140
CountyKlamath County
StateOregon
Coordinates42.29261, -121.92906
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length235 ft (71.6 m)
Longest span78 ft (23.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,413 (2022)
Projected traffic4,600 by 2042
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Or 140 (hwy 270) over Geary Canal built?

It was built in 1997, making it 28 years old in 2025.

What condition is Or 140 (hwy 270) over Geary Canal 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 March 2024.

How much traffic does Or 140 (hwy 270) over Geary Canal carry?

About 4,413 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is Or 140 (hwy 270) over Geary Canal?

The structure is 235 ft (71.6 m) long with a longest span of 78 ft (23.8 m) and a deck 43 ft wide.

Who owns Or 140 (hwy 270) over Geary Canal?

It is owned by the State Highway Agency.