US Bridges

I-5 (hwy 001) over Elkhead RD

Fair

Douglas County, Oregon · 04.5 MI N of HWY 236 JCT · Structure no. 21305 001 15454

Built
2010
15 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
22,467
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) over Elkhead RD is a prestressed concrete stringer/multi-beam or girder carrying I-5 (hwy 001) over Elkhead RD 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 22,467 vehicles a day, roughly 25% of them trucks, projected to reach 24,800 by 2042. The structure is 75 ft (22.9 m) long and 94 ft wide.

Location

Open in Google Maps
CarriesI-5 (hwy 001)
CrossesElkhead RD
Location04.5 MI N of HWY 236 JCT
RouteInterstate 5
CountyDouglas County
StateOregon
Coordinates43.60721, -123.22252
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating48.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length75 ft (22.9 m)
Longest span75 ft (22.9 m)
Deck width94 ft (28.5 m)
Roadway width89 ft (27 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,467 (2022)
Projected traffic24,800 by 2042
Trucks25%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 (hwy 001) over Elkhead RD built?

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

What condition is I-5 (hwy 001) over Elkhead RD 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 Elkhead RD carry?

About 22,467 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is I-5 (hwy 001) over Elkhead RD?

The structure is 75 ft (22.9 m) long with a longest span of 75 ft (22.9 m) and a deck 94 ft wide.

Who owns I-5 (hwy 001) over Elkhead RD?

It is owned by the State Highway Agency.