US Bridges

County Road 31 over Saranac River

Good

Clinton County, New York · .1 MI SE SH 3 in Saranac · Structure no. 000000003335740

Built
1960
65 years old, rebuilt 2015
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
178 ft
3 main spans
Daily traffic
449
2017 count
Owner
County
County Highway Agency

About this bridge

County Road 31 over Saranac River is a steel stringer/multi-beam or girder carrying County Road 31 over Saranac River in Clinton County, New York. It was built in 1960 and reconstructed in 2015, so it is 65 years old, older than the New York average of 53 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 449 vehicles a day, roughly 3% of them trucks, projected to reach 629 by 2037. The structure is 178 ft (54.3 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesCounty Road 31
CrossesSaranac River
Location.1 MI SE SH 3 in Saranac
RouteCounty Highway 0
CountyClinton County
StateNew York
Coordinates44.64743, -73.74719
Functional classRural Local

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.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating91.1 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length178 ft (54.3 m)
Longest span69 ft (21 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic449 (2017)
Projected traffic629 by 2037
Trucks3%
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 31 over Saranac River built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2015.

What condition is County Road 31 over Saranac 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 2023.

How much traffic does County Road 31 over Saranac River carry?

About 449 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is County Road 31 over Saranac River?

The structure is 178 ft (54.3 m) long with a longest span of 69 ft (21 m) and a deck 31 ft wide.

Who owns County Road 31 over Saranac River?

It is owned by the County Highway Agency.