US Bridges

I-5 (hwy 001) over Curtis Creek

Fair

Douglas County, Oregon · 06.5 MI N of HWY 236 JCT · Structure no. 21306 001 15649

Built
2010
15 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
100 ft
2 main spans
Daily traffic
11,233
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) over Curtis Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying I-5 (hwy 001) over Curtis Creek in Douglas 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 11,233 vehicles a day, roughly 25% of them trucks, projected to reach 12,400 by 2042. The structure is 100 ft (30.5 m) long and 38 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesI-5 (hwy 001)
CrossesCurtis Creek
Location06.5 MI N of HWY 236 JCT
RouteInterstate 5
CountyDouglas County
StateOregon
Coordinates43.633, -123.21859
Functional classRural Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length100 ft (30.5 m)
Longest span60 ft (18.3 m)
Deck width38 ft (11.5 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,233 (2022)
Projected traffic12,400 by 2042
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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) over Curtis Creek built?

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

What condition is I-5 (hwy 001) over Curtis Creek 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 February 2023.

How much traffic does I-5 (hwy 001) over Curtis Creek carry?

About 11,233 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is I-5 (hwy 001) over Curtis Creek?

The structure is 100 ft (30.5 m) long with a longest span of 60 ft (18.3 m) and a deck 38 ft wide.

Who owns I-5 (hwy 001) over Curtis Creek?

It is owned by the State Highway Agency.