US Bridges

East Mt Circle over Hackett Creek

Poor

Clackamas County, Oregon · Brightwood and E Mt Circl · Structure no. 20781 000 00000

Built
1980
45 years old
Condition
Poor
inspected July 2024
Type
Culvert
Steel
Length
28 ft
3 main spans
Daily traffic
293
2020 count
Owner
County
County Highway Agency

About this bridge

East Mt Circle over Hackett Creek is a steel culvert carrying East Mt Circle over Hackett Creek in Clackamas County, Oregon. It was built in 1980, so it is 45 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 293 vehicles a day, roughly 10% of them trucks, projected to reach 314 by 2025. The structure is 28 ft (8.5 m) long and 40 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesEast Mt Circle
CrossesHackett Creek
LocationBrightwood and E Mt Circl
RouteCounty Highway 0
StateOregon
Coordinates45.36973, -121.99441
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98.9 US tons
Inventory rating76.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span8 ft (2.4 m)
Deck width40 ft (12.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic293 (2020)
Projected traffic314 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 East Mt Circle over Hackett Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is East Mt Circle over Hackett Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does East Mt Circle over Hackett Creek carry?

About 293 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is East Mt Circle over Hackett Creek?

The structure is 28 ft (8.5 m) long with a longest span of 8 ft (2.4 m) and a deck 40 ft wide.

Who owns East Mt Circle over Hackett Creek?

It is owned by the County Highway Agency.