US Bridges

Road over Blue River

Good

Lane County, Oregon · 3.8 N of HWY 126 on Fs 15 · Structure no. 061801000001633

Built
1968
57 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
192 ft
2 main spans
Daily traffic
50
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Blue River is a prestressed concrete stringer/multi-beam or girder carrying Road over Blue River in Lane 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 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 192 ft (58.5 m) long and 27 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesRoad
CrossesBlue River
Location3.8 N of HWY 126 on Fs 15
RouteFederal Lands Road 15001
StateOregon
Coordinates44.20717, -122.26253
Functional classRural Local

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 inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadOther
Structure length192 ft (58.5 m)
Longest span0 ft (0 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2006)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Blue River built?

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

What condition is Road over Blue River 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 June 2023.

How much traffic does Road over Blue River carry?

About 50 vehicles per day (2006 count).

How long is Road over Blue River?

The structure is 192 ft (58.5 m) long and a deck 27 ft wide.

Who owns Road over Blue River?

It is owned by the U.S. Forest Service.