US Bridges

Estacada Road over Du Bois Creek

Poor

Clackamas County, Oregon · 0.11 Mi. W. of HWY 211 · Structure no. 18529 000 00011

Built
1997
28 years old
Condition
Poor
inspected July 2024
Type
Arch - Thru
Wood or Timber
Length
60 ft
1 main span
Daily traffic
86
2020 count
Owner
County
County Highway Agency

About this bridge

Estacada Road over Du Bois Creek is a wood or timber arch - thru carrying Estacada Road over Du Bois Creek in Clackamas County, Oregon. It was built in 1997, so it is 28 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 86 vehicles a day, projected to reach 92 by 2025. The structure is 60 ft (18.3 m) long and 23 ft wide.

Location

Open in Google Maps
CarriesEstacada Road
CrossesDu Bois Creek
Location0.11 Mi. W. of HWY 211
RouteCounty Highway C0600
CountyClackamas County
StateOregon
Coordinates45.28115, -122.34609
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating27.1 US tons
Inventory rating21.1 US tons

Structure

Structure typeArch - Thru
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span48 ft (14.6 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic86 (2020)
Projected traffic92 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Estacada Road over Du Bois Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Estacada Road over Du Bois 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 Estacada Road over Du Bois Creek carry?

About 86 vehicles per day (2020 count).

How long is Estacada Road over Du Bois Creek?

The structure is 60 ft (18.3 m) long with a longest span of 48 ft (14.6 m) and a deck 23 ft wide.

Who owns Estacada Road over Du Bois Creek?

It is owned by the County Highway Agency.