US Bridges

Co. Rd. 37 over Hunkins Marsh

Fair

St. Lawrence County, New York · 2.0 Mi. E of Helena · Structure no. 000000003340530

Built
1934
91 years old, rebuilt 1983
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
1,280
2019 count
Owner
County
County Highway Agency

About this bridge

Co. Rd. 37 over Hunkins Marsh is a steel stringer/multi-beam or girder carrying Co. Rd. 37 over Hunkins Marsh in St. Lawrence County, New York. It was built in 1934 and reconstructed in 1983, so it is 91 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 1,280 vehicles a day, roughly 8% of them trucks, projected to reach 1,792 by 2039. The structure is 40 ft (12.2 m) long and 39 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesCo. Rd. 37
CrossesHunkins Marsh
Location2.0 Mi. E of Helena
RouteCounty Highway 0
CountySt. Lawrence County
StateNew York
Coordinates44.92944, -74.68236
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating58 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span37 ft (11.3 m)
Deck width39 ft (11.9 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,280 (2019)
Projected traffic1,792 by 2039
Trucks8%
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$740,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Co. Rd. 37 over Hunkins Marsh built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1983.

What condition is Co. Rd. 37 over Hunkins Marsh 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 2023.

How much traffic does Co. Rd. 37 over Hunkins Marsh carry?

About 1,280 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is Co. Rd. 37 over Hunkins Marsh?

The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.3 m) and a deck 39 ft wide.

Who owns Co. Rd. 37 over Hunkins Marsh?

It is owned by the County Highway Agency.