US Bridges

Or 58 (hwy 018) WB over US 97 (hwy 004) SB

Fair

Klamath County, Oregon · 001 MI W the Dalles JCT · Structure no. 20394 018 08630

Built
2008
17 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
135 ft
1 main span
Daily traffic
949
2022 count
Owner
State
State Highway Agency

About this bridge

Or 58 (hwy 018) WB over US 97 (hwy 004) SB is a prestressed concrete stringer/multi-beam or girder carrying Or 58 (hwy 018) WB over US 97 (hwy 004) SB in Klamath County, Oregon. It was built in 2008, so it is 17 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 949 vehicles a day, roughly 36% of them trucks, projected to reach 1,000 by 2042. The structure is 135 ft (41 m) long and 31 ft wide. If it were closed, the detour would be 90.7 mi (146 km).

Location

Open in Google Maps
CarriesOr 58 (hwy 018) WB
CrossesUS 97 (hwy 004) SB
Location001 MI W the Dalles JCT
RouteState Highway 58
CountyKlamath County
StateOregon
Coordinates43.3307, -121.75685
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.5 US tons
Inventory rating76.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length135 ft (41 m)
Longest span135 ft (41 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic949 (2022)
Projected traffic1,000 by 2042
Trucks36%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed90.7 mi (146 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Or 58 (hwy 018) WB over US 97 (hwy 004) SB built?

It was built in 2008, making it 17 years old in 2025.

What condition is Or 58 (hwy 018) WB over US 97 (hwy 004) SB 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 2023.

How much traffic does Or 58 (hwy 018) WB over US 97 (hwy 004) SB carry?

About 949 vehicles per day (2022 count), of which roughly 36% are trucks.

How long is Or 58 (hwy 018) WB over US 97 (hwy 004) SB?

The structure is 135 ft (41 m) long with a longest span of 135 ft (41 m) and a deck 31 ft wide.

Who owns Or 58 (hwy 018) WB over US 97 (hwy 004) SB?

It is owned by the State Highway Agency.