US Bridges

I-5 (hwy 001) NB over Roberts Creek RD

Good

Douglas County, Oregon · 06.2 MI S of Roseburg Scl · Structure no. 20422 001 11774

Built
2006
19 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
195 ft
2 main spans
Daily traffic
20,912
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) NB over Roberts Creek RD is a prestressed concrete continuous stringer/multi-beam or girder carrying I-5 (hwy 001) NB over Roberts Creek RD in Douglas County, Oregon. It was built in 2006, so it is 19 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 20,912 vehicles a day, roughly 20% of them trucks, projected to reach 23,950 by 2042. The structure is 195 ft (59.4 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-5 (hwy 001) NB
CrossesRoberts Creek RD
Location06.2 MI S of Roseburg Scl
RouteInterstate 5
CountyDouglas County
StateOregon
Coordinates43.12735, -123.36396
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
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 within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length195 ft (59.4 m)
Longest span100 ft (30.5 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,912 (2022)
Projected traffic23,950 by 2042
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 Roberts Creek RD built?

It was built in 2006, making it 19 years old in 2025.

What condition is I-5 (hwy 001) NB over Roberts Creek RD 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 Roberts Creek RD carry?

About 20,912 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is I-5 (hwy 001) NB over Roberts Creek RD?

The structure is 195 ft (59.4 m) long with a longest span of 100 ft (30.5 m) and a deck 45 ft wide.

Who owns I-5 (hwy 001) NB over Roberts Creek RD?

It is owned by the State Highway Agency.