US Bridges

I-5 (hwy 001) over 16th St.

Fair

Lane County, Oregon · Cottage Grove · Structure no. 07864A001 17384

Built
1956
69 years old, rebuilt 1963
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
37,910
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) over 16th St. is a concrete continuous tee beam carrying I-5 (hwy 001) over 16th St. in Lane County, Oregon. It was built in 1956 and reconstructed in 1963, so it is 69 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 37,910 vehicles a day, roughly 26% of them trucks, projected to reach 39,700 by 2042. The structure is 110 ft (33.5 m) long and 86 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI-5 (hwy 001)
Crosses16th St.
LocationCottage Grove
RouteInterstate 5
CountyLane County
StateOregon
Coordinates43.79271, -123.0508
Functional classUrban 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.6 US tons
Inventory rating18.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span46 ft (14 m)
Deck width86 ft (26.2 m)
Roadway width82 ft (24.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,910 (2022)
Projected traffic39,700 by 2042
Trucks26%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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) over 16th St. built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1963.

What condition is I-5 (hwy 001) over 16th St. 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 May 2024.

How much traffic does I-5 (hwy 001) over 16th St. carry?

About 37,910 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is I-5 (hwy 001) over 16th St.?

The structure is 110 ft (33.5 m) long with a longest span of 46 ft (14 m) and a deck 86 ft wide.

Who owns I-5 (hwy 001) over 16th St.?

It is owned by the State Highway Agency.