US Bridges

C125 Hotchkiss LN over Silvies River

Good

Harney County, Oregon · 026 MI US 20/395 · Structure no. 25A42 C12500257

Built
1984
41 years old
Condition
Good
inspected September 2024
Type
Slab
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
185
2020 count
Owner
County
County Highway Agency

About this bridge

C125 Hotchkiss LN over Silvies River is a prestressed concrete slab carrying C125 Hotchkiss LN over Silvies River in Harney County, Oregon. It was built in 1984, so it is 41 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 185 vehicles a day, roughly 20% of them trucks, projected to reach 220 by 2025. The structure is 51 ft (15.5 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesC125 Hotchkiss LN
CrossesSilvies River
Location026 MI US 20/395
RouteCounty Highway C0125
StateOregon
Coordinates43.55659, -119.0476
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
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 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 rating57.1 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span47 ft (14.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic185 (2020)
Projected traffic220 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 C125 Hotchkiss LN over Silvies River built?

It was built in 1984, making it 41 years old in 2025.

What condition is C125 Hotchkiss LN over Silvies 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 September 2024.

How much traffic does C125 Hotchkiss LN over Silvies River carry?

About 185 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is C125 Hotchkiss LN over Silvies River?

The structure is 51 ft (15.5 m) long with a longest span of 47 ft (14.3 m) and a deck 28 ft wide.

Who owns C125 Hotchkiss LN over Silvies River?

It is owned by the County Highway Agency.