US Bridges

Lone Pine over Crooked River

Good

Crook County, Oregon · At Forest Crossing · Structure no. 16132A106 00162

Built
1987
38 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
242 ft
2 main spans
Daily traffic
663
2020 count
Owner
County
County Highway Agency

About this bridge

Lone Pine over Crooked River is a prestressed concrete stringer/multi-beam or girder carrying Lone Pine over Crooked River in Crook County, Oregon. It was built in 1987, so it is 38 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 663 vehicles a day, roughly 40% of them trucks, projected to reach 763 by 2025. The structure is 242 ft (73.8 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesLone Pine
CrossesCrooked River
LocationAt Forest Crossing
RouteCounty Highway 0B370
StateOregon
Coordinates44.34907, -121.0822
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.4 US tons
Inventory rating24.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length242 ft (73.8 m)
Longest span120 ft (36.6 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic663 (2020)
Projected traffic763 by 2025
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Lone Pine over Crooked River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Lone Pine over Crooked River 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 August 2024.

How much traffic does Lone Pine over Crooked River carry?

About 663 vehicles per day (2020 count), of which roughly 40% are trucks.

How long is Lone Pine over Crooked River?

The structure is 242 ft (73.8 m) long with a longest span of 120 ft (36.6 m) and a deck 31 ft wide.

Who owns Lone Pine over Crooked River?

It is owned by the County Highway Agency.