US Bridges

Blue River Drive over Blue River

FairPosted for load

Lane County, Oregon · In Blue River · Structure no. 39C183110500130

Built
1928
97 years old
Condition
Fair
inspected July 2024
Type
Girder and Floorbeam System
Concrete Continuous
Length
222 ft
3 main spans
Daily traffic
1,427
2020 count
Owner
County
County Highway Agency

About this bridge

Blue River Drive over Blue River is a concrete continuous girder and floorbeam system carrying Blue River Drive over Blue River in Lane County, Oregon. It was built in 1928, so it is 97 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,427 vehicles a day, roughly 10% of them trucks, projected to reach 1,672 by 2025. The structure is 222 ft (67.7 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBlue River Drive
CrossesBlue River
LocationIn Blue River
RouteCounty Highway C1105
StateOregon
Coordinates44.1552, -122.34014
Functional classRural Minor Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating15.8 US tons
Inventory rating12.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadUnknown
Structure length222 ft (67.7 m)
Longest span60 ft (18.3 m)
Deck width30 ft (9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,427 (2020)
Projected traffic1,672 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Blue River Drive over Blue River built?

It was built in 1928, making it 97 years old in 2025.

What condition is Blue River Drive over Blue River 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 Blue River Drive over Blue River carry?

About 1,427 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Blue River Drive over Blue River?

The structure is 222 ft (67.7 m) long with a longest span of 60 ft (18.3 m) and a deck 30 ft wide.

Who owns Blue River Drive over Blue River?

It is owned by the County Highway Agency.