US Bridges

Sod House LN over Donner & Blitzen River

Fair

Harney County, Oregon · 5.8 MI East of HWY 205 · Structure no. 20619 C40500580

Built
2007
18 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
56 ft
1 main span
Daily traffic
113
2020 count
Owner
County
County Highway Agency

About this bridge

Sod House LN over Donner & Blitzen River is a steel stringer/multi-beam or girder carrying Sod House LN over Donner & Blitzen River in Harney County, Oregon. It was built in 2007, so it is 18 years old, younger 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 113 vehicles a day, roughly 10% of them trucks, projected to reach 123 by 2025. The structure is 56 ft (17.1 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSod House LN
CrossesDonner & Blitzen River
Location5.8 MI East of HWY 205
RouteCounty Highway C0405
CountyHarney County
StateOregon
Coordinates43.26795, -118.85152
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span56 ft (17.1 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic113 (2020)
Projected traffic123 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Sod House LN over Donner & Blitzen River built?

It was built in 2007, making it 18 years old in 2025.

What condition is Sod House LN over Donner & Blitzen 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 September 2024.

How much traffic does Sod House LN over Donner & Blitzen River carry?

About 113 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Sod House LN over Donner & Blitzen River?

The structure is 56 ft (17.1 m) long with a longest span of 56 ft (17.1 m) and a deck 32 ft wide.

Who owns Sod House LN over Donner & Blitzen River?

It is owned by the County Highway Agency.