US Bridges

S Side Bypass over UPRR

Fair

Klamath County, Oregon · 20 Miles of Kfalls · Structure no. 16334 424 00148

Built
1986
39 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
180 ft
3 main spans
Daily traffic
11,928
2022 count
Owner
State
State Highway Agency

About this bridge

S Side Bypass over UPRR is a prestressed concrete slab carrying S Side Bypass over UPRR in Klamath County, Oregon. It was built in 1986, so it is 39 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 11,928 vehicles a day, roughly 16% of them trucks, projected to reach 17,000 by 2042. The structure is 180 ft (54.9 m) long and 52 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesS Side Bypass
CrossesUPRR
Location20 Miles of Kfalls
RouteState Highway 140
CountyKlamath County
StateOregon
Coordinates42.18929, -121.77133
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12.5 US tons
Inventory rating9.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length180 ft (54.9 m)
Longest span60 ft (18.3 m)
Deck width52 ft (15.8 m)
Roadway width49 ft (15 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,928 (2022)
Projected traffic17,000 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S Side Bypass over UPRR built?

It was built in 1986, making it 39 years old in 2025.

What condition is S Side Bypass over UPRR 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 July 2024.

How much traffic does S Side Bypass over UPRR carry?

About 11,928 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is S Side Bypass over UPRR?

The structure is 180 ft (54.9 m) long with a longest span of 60 ft (18.3 m) and a deck 52 ft wide.

Who owns S Side Bypass over UPRR?

It is owned by the State Highway Agency.