US Bridges

I-5 (hwy 001) NB over Clarks Branch RD

Fair

Douglas County, Oregon · 10.5 MI S of Roseburg Scl · Structure no. 07839A001 11344

Built
1964
61 years old, rebuilt 1995
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
125 ft
3 main spans
Daily traffic
12,949
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) NB over Clarks Branch RD is a concrete continuous slab carrying I-5 (hwy 001) NB over Clarks Branch RD in Douglas County, Oregon. It was built in 1964 and reconstructed in 1995, so it is 61 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 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 12,949 vehicles a day, roughly 27% of them trucks, projected to reach 16,350 by 2042. The structure is 125 ft (38.1 m) long and 42 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
CrossesClarks Branch RD
Location10.5 MI S of Roseburg Scl
RouteInterstate 5
CountyDouglas County
StateOregon
Coordinates43.07405, -123.35794
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12.9 US tons
Inventory rating10 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span50 ft (15.2 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,949 (2022)
Projected traffic16,350 by 2042
Trucks27%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 (hwy 001) NB over Clarks Branch RD built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1995.

What condition is I-5 (hwy 001) NB over Clarks Branch 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 January 2025.

How much traffic does I-5 (hwy 001) NB over Clarks Branch RD carry?

About 12,949 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is I-5 (hwy 001) NB over Clarks Branch RD?

The structure is 125 ft (38.1 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.

Who owns I-5 (hwy 001) NB over Clarks Branch RD?

It is owned by the State Highway Agency.