US Bridges

7th ST Madras over Willow Creek EB

FairPosted for load

Jefferson County, Oregon · 0.1 MI E of HWY 97 · Structure no. 31B94 000000000

Built
1970
55 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
52 ft
1 main span
Daily traffic
330
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

7th ST Madras over Willow Creek EB is a concrete slab carrying 7th ST Madras over Willow Creek EB in Jefferson County, Oregon. It was built in 1970, so it is 55 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. Its operating status is: posted for load restriction.

It carries about 330 vehicles a day, roughly 11% of them trucks, projected to reach 376 by 2025. The structure is 52 ft (15.8 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries7th ST Madras
CrossesWillow Creek EB
Location0.1 MI E of HWY 97
RouteCity Street 218
CountyJefferson County
StateOregon
Coordinates44.63785, -121.1275
Functional classUrban Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.6 US tons
Inventory rating20.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckOther
Main spans1
Design loadUnknown
Structure length52 ft (15.8 m)
Longest span51 ft (15.5 m)
Deck width53 ft (16.2 m)
Roadway width42 ft (12.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2020)
Projected traffic376 by 2025
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Madras over Willow Creek EB built?

It was built in 1970, making it 55 years old in 2025.

What condition is 7th ST Madras over Willow Creek EB 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 November 2024.

How much traffic does 7th ST Madras over Willow Creek EB carry?

About 330 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is 7th ST Madras over Willow Creek EB?

The structure is 52 ft (15.8 m) long with a longest span of 51 ft (15.5 m) and a deck 53 ft wide.

Who owns 7th ST Madras over Willow Creek EB?

It is owned by the City or Municipal Highway Agency.