US Bridges

I-5 (hwy 001) SB over Martin Creek SB

Good

Lane County, Oregon · 03.7 MI S Cottage Grove · Structure no. 20645 001 16958

Built
2008
17 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
12,670
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) SB over Martin Creek SB is a prestressed concrete stringer/multi-beam or girder carrying I-5 (hwy 001) SB over Martin Creek SB in Lane County, Oregon. It was built in 2008, so it is 17 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 12,670 vehicles a day, roughly 26% of them trucks, projected to reach 13,700 by 2042. The structure is 77 ft (23.5 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) SB
CrossesMartin Creek SB
Location03.7 MI S Cottage Grove
RouteInterstate 5
CountyLane County
StateOregon
Coordinates43.7521, -123.10786
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.9 US tons
Inventory rating63.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length77 ft (23.5 m)
Longest span77 ft (23.5 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,670 (2022)
Projected traffic13,700 by 2042
Trucks26%
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 Martin Creek SB built?

It was built in 2008, making it 17 years old in 2025.

What condition is I-5 (hwy 001) SB over Martin Creek SB 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 May 2024.

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

About 12,670 vehicles per day (2022 count), of which roughly 26% are trucks.

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

The structure is 77 ft (23.5 m) long with a longest span of 77 ft (23.5 m) and a deck 45 ft wide.

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

It is owned by the State Highway Agency.