US Bridges

1600000 over N.F.Malheur River

Fair

Baker County, Oregon · 43.7 MI East of Seneca · Structure no. 060404000001011

Built
1959
66 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
36 ft
1 main span
Daily traffic
50
1995 count
Owner
Federal
U.S. Forest Service

About this bridge

1600000 over N.F.Malheur River is a wood or timber stringer/multi-beam or girder carrying 1600000 over N.F.Malheur River in Baker County, Oregon. It was built in 1959, so it is 66 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 5 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 36 ft (11 m) long and 28 ft wide.

Carries1600000
CrossesN.F.Malheur River
Location43.7 MI East of Seneca
RouteFederal Lands Road 16000
StateOregon
Coordinates44.26568, -118.3943
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating48.1 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadOther
Structure length36 ft (11 m)
Longest span35 ft (10.6 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1995)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 1600000 over N.F.Malheur River built?

It was built in 1959, making it 66 years old in 2025.

What condition is 1600000 over N.F.Malheur 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 1600000 over N.F.Malheur River carry?

About 50 vehicles per day (1995 count).

How long is 1600000 over N.F.Malheur River?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.6 m) and a deck 28 ft wide.

Who owns 1600000 over N.F.Malheur River?

It is owned by the U.S. Forest Service.