US Bridges

Or 126 (hwy 62) over Knowles Creek

Good

Lane County, Oregon · 4.1 MI E Mapleton · Structure no. 21235 062 01847

Built
2010
15 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
175 ft
1 main span
Daily traffic
4,630
2022 count
Owner
State
State Highway Agency

About this bridge

Or 126 (hwy 62) over Knowles Creek is a prestressed concrete stringer/multi-beam or girder carrying Or 126 (hwy 62) over Knowles Creek in Lane County, Oregon. It was built in 2010, so it is 15 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,630 vehicles a day, roughly 15% of them trucks, projected to reach 7,200 by 2042. The structure is 175 ft (53.4 m) long and 44 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesOr 126 (hwy 62)
CrossesKnowles Creek
Location4.1 MI E Mapleton
RouteState Highway 126
StateOregon
Coordinates44.01496, -123.78828
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than 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 rating70.8 US tons
Inventory rating54.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length175 ft (53.4 m)
Longest span175 ft (53.4 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,630 (2022)
Projected traffic7,200 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Or 126 (hwy 62) over Knowles Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Or 126 (hwy 62) over Knowles Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Or 126 (hwy 62) over Knowles Creek carry?

About 4,630 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Or 126 (hwy 62) over Knowles Creek?

The structure is 175 ft (53.4 m) long with a longest span of 175 ft (53.4 m) and a deck 44 ft wide.

Who owns Or 126 (hwy 62) over Knowles Creek?

It is owned by the State Highway Agency.