US Bridges

Lolo Pass RD over Sandy River

Fair

Clackamas County, Oregon · 1 MI N of HWY 26 · Structure no. 06573 005 00091

Built
1965
60 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
88 ft
1 main span
Daily traffic
1,100
2018 count
Owner
County
County Highway Agency

About this bridge

Lolo Pass RD over Sandy River is a prestressed concrete stringer/multi-beam or girder carrying Lolo Pass RD over Sandy River in Clackamas County, Oregon. It was built in 1965, so it is 60 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,100 vehicles a day, roughly 47% of them trucks, projected to reach 1,200 by 2038. The structure is 88 ft (26.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLolo Pass RD
CrossesSandy River
Location1 MI N of HWY 26
RouteCounty Highway 0A651
StateOregon
Coordinates45.35641, -121.938
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length88 ft (26.8 m)
Longest span87 ft (26.5 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2018)
Projected traffic1,200 by 2038
Trucks47%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Lolo Pass RD over Sandy River built?

It was built in 1965, making it 60 years old in 2025.

What condition is Lolo Pass RD over Sandy River 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 July 2024.

How much traffic does Lolo Pass RD over Sandy River carry?

About 1,100 vehicles per day (2018 count), of which roughly 47% are trucks.

How long is Lolo Pass RD over Sandy River?

The structure is 88 ft (26.8 m) long with a longest span of 87 ft (26.5 m) and a deck 31 ft wide.

Who owns Lolo Pass RD over Sandy River?

It is owned by the County Highway Agency.