US Bridges

Boeckman Rd. over Seeley Ditch

Good

Clackamas County, Oregon · 1.8 MI N of Willamette R · Structure no. 20227 000 00000

Built
2006
19 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
403 ft
6 main spans
Daily traffic
3,373
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Boeckman Rd. over Seeley Ditch is a prestressed concrete stringer/multi-beam or girder carrying Boeckman Rd. over Seeley Ditch in Clackamas County, Oregon. It was built in 2006, so it is 19 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,373 vehicles a day, roughly 1% of them trucks, projected to reach 3,720 by 2025. The structure is 403 ft (122.8 m) long and 58 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBoeckman Rd.
CrossesSeeley Ditch
Location1.8 MI N of Willamette R
RouteCounty Highway 0
StateOregon
Coordinates45.31631, -122.78393
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length403 ft (122.8 m)
Longest span68 ft (20.6 m)
Deck width58 ft (17.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,373 (2020)
Projected traffic3,720 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Boeckman Rd. over Seeley Ditch built?

It was built in 2006, making it 19 years old in 2025.

What condition is Boeckman Rd. over Seeley Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Boeckman Rd. over Seeley Ditch carry?

About 3,373 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Boeckman Rd. over Seeley Ditch?

The structure is 403 ft (122.8 m) long with a longest span of 68 ft (20.6 m) and a deck 58 ft wide.

Who owns Boeckman Rd. over Seeley Ditch?

It is owned by the City or Municipal Highway Agency.