US Bridges

US 97 (hwy 004) over Or 66 (hwy 021)

Fair

Klamath County, Oregon · 021 MI S HWY 20 JCT · Structure no. 09694 004 27713

Built
1968
57 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
207 ft
2 main spans
Daily traffic
6,155
2022 count
Owner
State
State Highway Agency

About this bridge

US 97 (hwy 004) over Or 66 (hwy 021) is a steel continuous stringer/multi-beam or girder carrying US 97 (hwy 004) over Or 66 (hwy 021) in Klamath County, Oregon. It was built in 1968, so it is 57 years old, older 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 6,155 vehicles a day, roughly 13% of them trucks, projected to reach 8,100 by 2042. The structure is 207 ft (63.1 m) long and 103 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesUS 97 (hwy 004)
CrossesOr 66 (hwy 021)
Location021 MI S HWY 20 JCT
RouteU.S. Route 97
CountyKlamath County
StateOregon
Coordinates42.19211, -121.79893
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 inspectionMarch 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 rating20.7 US tons
Inventory rating16.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length207 ft (63.1 m)
Longest span83 ft (25.3 m)
Deck width103 ft (31.5 m)
Roadway width100 ft (30.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,155 (2022)
Projected traffic8,100 by 2042
Trucks13%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 97 (hwy 004) over Or 66 (hwy 021) built?

It was built in 1968, making it 57 years old in 2025.

What condition is US 97 (hwy 004) over Or 66 (hwy 021) 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 US 97 (hwy 004) over Or 66 (hwy 021) carry?

About 6,155 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US 97 (hwy 004) over Or 66 (hwy 021)?

The structure is 207 ft (63.1 m) long with a longest span of 83 ft (25.3 m) and a deck 103 ft wide.

Who owns US 97 (hwy 004) over Or 66 (hwy 021)?

It is owned by the State Highway Agency.