US Bridges

I-5 (hwy 001) NB over S Umpqua R(missouri Btm)

Good

Douglas County, Oregon · 06.3 MI N Canyonville Ncl · Structure no. 20611 001 10541

Built
2008
17 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
590 ft
4 main spans
Daily traffic
13,345
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) NB over S Umpqua R(missouri Btm) is a prestressed concrete continuous stringer/multi-beam or girder carrying I-5 (hwy 001) NB over S Umpqua R(missouri Btm) in Douglas 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,345 vehicles a day, roughly 27% of them trucks, projected to reach 15,000 by 2042. The structure is 590 ft (179.8 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-5 (hwy 001) NB
CrossesS Umpqua R(missouri Btm)
Location06.3 MI N Canyonville Ncl
RouteInterstate 5
CountyDouglas County
StateOregon
Coordinates42.99299, -123.32532
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length590 ft (179.8 m)
Longest span159 ft (48.5 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,345 (2022)
Projected traffic15,000 by 2042
Trucks27%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-5 (hwy 001) NB over S Umpqua R(missouri Btm) built?

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

What condition is I-5 (hwy 001) NB over S Umpqua R(missouri Btm) 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 January 2025.

How much traffic does I-5 (hwy 001) NB over S Umpqua R(missouri Btm) carry?

About 13,345 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is I-5 (hwy 001) NB over S Umpqua R(missouri Btm)?

The structure is 590 ft (179.8 m) long with a longest span of 159 ft (48.5 m) and a deck 45 ft wide.

Who owns I-5 (hwy 001) NB over S Umpqua R(missouri Btm)?

It is owned by the State Highway Agency.