US Bridges

7th ST over Mill Race Canal

Fair

Lane County, Oregon · 0.11 MI S of or 126 Bus · Structure no. 19641 000 00000

Built
1960
65 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
581
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

7th ST over Mill Race Canal is a steel stringer/multi-beam or girder carrying 7th ST over Mill Race Canal 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 5 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 581 vehicles a day, roughly 5% of them trucks, projected to reach 664 by 2025. The structure is 30 ft (9 m) long and 24 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
Carries7th ST
CrossesMill Race Canal
Location0.11 MI S of or 126 Bus
RouteCity Street 0
CountyLane County
StateOregon
Coordinates44.04386, -123.01731
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9 m)
Longest span27 ft (8.2 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic581 (2020)
Projected traffic664 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 7th ST over Mill Race Canal built?

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

What condition is 7th ST over Mill Race Canal 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 August 2024.

How much traffic does 7th ST over Mill Race Canal carry?

About 581 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is 7th ST over Mill Race Canal?

The structure is 30 ft (9 m) long with a longest span of 27 ft (8.2 m) and a deck 24 ft wide.

Who owns 7th ST over Mill Race Canal?

It is owned by the City or Municipal Highway Agency.