US Bridges

Miner Road over Salmon River

Fair

Clinton County, New York · 1.7MI W South Plattsburgh · Structure no. 000000003335830

Built
1949
76 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
48
2021 count
Owner
County
County Highway Agency

About this bridge

Miner Road over Salmon River is a steel stringer/multi-beam or girder carrying Miner Road over Salmon River in Clinton County, New York. It was built in 1949, so it is 76 years old, older than the New York average of 53 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 48 vehicles a day, roughly 14% of them trucks, projected to reach 67 by 2041. The structure is 36 ft (11 m) long and 21 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesMiner Road
CrossesSalmon River
Location1.7MI W South Plattsburgh
CountyClinton County
StateNew York
Coordinates44.6383, -73.52182
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width21 ft (6.3 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48 (2021)
Projected traffic67 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$402,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Miner Road over Salmon River built?

It was built in 1949, making it 76 years old in 2025.

What condition is Miner Road over Salmon 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 May 2024.

How much traffic does Miner Road over Salmon River carry?

About 48 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is Miner Road over Salmon River?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 21 ft wide.

Who owns Miner Road over Salmon River?

It is owned by the County Highway Agency.