US Bridges

I-5 (hwy 001) SB over Muddy Creek

Fair

Lane County, Oregon · 031 MI S Lane-Linn Line · Structure no. 08171S001 20050

Built
1960
65 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete Continuous
Length
126 ft
3 main spans
Daily traffic
20,715
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) SB over Muddy Creek is a concrete continuous tee beam carrying I-5 (hwy 001) SB over Muddy Creek in Lane County, Oregon. It was built in 1960, so it is 65 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 20,715 vehicles a day, roughly 25% of them trucks, projected to reach 23,000 by 2042. The structure is 126 ft (38.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-5 (hwy 001) SB
CrossesMuddy Creek
Location031 MI S Lane-Linn Line
RouteInterstate 5
CountyLane County
StateOregon
Coordinates44.1565, -123.05706
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating25.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length126 ft (38.4 m)
Longest span42 ft (12.8 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,715 (2022)
Projected traffic23,000 by 2042
Trucks25%
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) SB over Muddy Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is I-5 (hwy 001) SB over Muddy 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 March 2023.

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

About 20,715 vehicles per day (2022 count), of which roughly 25% are trucks.

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

The structure is 126 ft (38.4 m) long with a longest span of 42 ft (12.8 m) and a deck 42 ft wide.

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

It is owned by the State Highway Agency.