US Bridges

RTE 56 over Raquette River

Good

St. Lawrence County, New York · In Village of Hanawa Flls · Structure no. 000000001027270

Built
1997
28 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
245 ft
2 main spans
Daily traffic
2,797
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 56 over Raquette River is a steel continuous stringer/multi-beam or girder carrying RTE 56 over Raquette River in St. Lawrence County, New York. It was built in 1997, so it is 28 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,797 vehicles a day, roughly 7% of them trucks, projected to reach 2,814 by 2041. The structure is 245 ft (74.7 m) long and 42 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRTE 56
CrossesRaquette River
LocationIn Village of Hanawa Flls
RouteState Highway 56
Coordinates44.61084, -74.97451
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length245 ft (74.7 m)
Longest span120 ft (36.5 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,797 (2020)
Projected traffic2,814 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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$3.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 56 over Raquette River built?

It was built in 1997, making it 28 years old in 2025.

What condition is RTE 56 over Raquette 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 October 2023.

How much traffic does RTE 56 over Raquette River carry?

About 2,797 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is RTE 56 over Raquette River?

The structure is 245 ft (74.7 m) long with a longest span of 120 ft (36.5 m) and a deck 42 ft wide.

Who owns RTE 56 over Raquette River?

It is owned by the State Highway Agency.