US Bridges

RTE 37 over Brandy Brook

Good

St. Lawrence County, New York · 1.8 MI NE JCT SH37 &SH345 · Structure no. 000000001023870

Built
1957
68 years old, rebuilt 2017
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
319 ft
4 main spans
Daily traffic
3,023
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 37 over Brandy Brook is a steel stringer/multi-beam or girder carrying RTE 37 over Brandy Brook in St. Lawrence County, New York. It was built in 1957 and reconstructed in 2017, so it is 68 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 3,023 vehicles a day, roughly 18% of them trucks, projected to reach 3,051 by 2041. The structure is 319 ft (97.2 m) long and 43 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

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CarriesRTE 37
CrossesBrandy Brook
Location1.8 MI NE JCT SH37 &SH345
RouteState Highway 37
CountySt. Lawrence County
StateNew York
Coordinates44.87307, -75.16241
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length319 ft (97.2 m)
Longest span79 ft (24 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,023 (2020)
Projected traffic3,051 by 2041
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5.6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 37 over Brandy Brook built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2017.

What condition is RTE 37 over Brandy Brook 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 July 2023.

How much traffic does RTE 37 over Brandy Brook carry?

About 3,023 vehicles per day (2020 count), of which roughly 18% are trucks.

How long is RTE 37 over Brandy Brook?

The structure is 319 ft (97.2 m) long with a longest span of 79 ft (24 m) and a deck 43 ft wide.

Who owns RTE 37 over Brandy Brook?

It is owned by the State Highway Agency.