US Bridges

Barlow Trail RD over Sandy River

Poor

Clackamas County, Oregon · 000 Sleepy Hollow · Structure no. 01659 000 00003

Built
1953
72 years old, rebuilt 1983
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
172 ft
1 main span
Daily traffic
288
2020 count
Owner
County
County Highway Agency

About this bridge

Barlow Trail RD over Sandy River is a prestressed concrete stringer/multi-beam or girder carrying Barlow Trail RD over Sandy River in Clackamas County, Oregon. It was built in 1953 and reconstructed in 1983, so it is 72 years old, older 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 288 vehicles a day, roughly 24% of them trucks, projected to reach 293 by 2025. The structure is 172 ft (52.4 m) long and 35 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesBarlow Trail RD
CrossesSandy River
Location000 Sleepy Hollow
RouteCounty Highway C0000
StateOregon
Coordinates45.38371, -122.04597
Functional classRural Minor Collector

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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadHS 20
Structure length172 ft (52.4 m)
Longest span147 ft (44.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic288 (2020)
Projected traffic293 by 2025
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Barlow Trail RD over Sandy River built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1983.

What condition is Barlow Trail RD over Sandy River 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 Barlow Trail RD over Sandy River carry?

About 288 vehicles per day (2020 count), of which roughly 24% are trucks.

How long is Barlow Trail RD over Sandy River?

The structure is 172 ft (52.4 m) long with a longest span of 147 ft (44.8 m) and a deck 35 ft wide.

Who owns Barlow Trail RD over Sandy River?

It is owned by the County Highway Agency.