Smoother Sailing on the Hudson

Navigating New York’s Hudson River is safer and more efficient, thanks to a collaboration between the Hudson River Reserve, the National Oceanic and Atmospheric Administration (NOAA), and the New York State Department of Environmental Conservation. Last month, the partners unveiled the first station in the Hudson River Estuary Physical Oceanographic Real-Time System (PORTS®), a network that delivers real-time oceanographic and meteorological data to mariners, coastal planners, and decision makers.

“The PORTS station measures wind speed and direction, atmospheric pressure, air and water temperatures, salinity—all of the basic parameters monitored in the Reserves’ System-wide Monitoring Program—plus water levels,” says Chris Mitchell, the Reserve’s research coordinator. “All of this information is critical for navigation on the Hudson.”

The Hudson River is a bustling commercial waterway. Marine cargo in New York State contributes $32 billion to the state’s economy each year. However, navigating the River presents challenges due to narrow margins of error for ship drafts and bridge clearances. In some instances, vessels have less than a foot of bridge or bottom clearance, making precise water level data indispensable. This information is also essential for infrastructure planning and maintenance.

The tide station is a step toward addressing a major challenge for navigation on the Hudson. Prior to its installation, the only such station was located in New York City, approximately 90 miles south of the Reserve. The lack of localized data posed challenges for accurate water level monitoring, especially during extreme weather events. 

The aftermath of Hurricane Sandy in 2012 underscored this vulnerability, as the storm surge caused extensive flooding and damage in upriver areas. Leveraging momentum from Sandy recovery efforts, the Reserve established the initial tide station at Turkey Point, across the river from their Tivoli Bays component. Operational since 2017, this station, modeled after the National Water Level Observation Network (NWLON), was adopted by NOAA to contribute to their existing network on tide stations. This led to an aha moment for Reserve staff.

“We recognized an opportunity to enhance maritime navigation and safety in the upper Hudson River by developing a PORTS® network for this region,” says Chris. “We could see it would complement the existing system in the New York-New Jersey area, which enables mariners to make informed decisions, prevents costly accidents, and ensures the smooth flow of commerce.”

The Turkey Point station is the cornerstone of this expanded network. A second station is slated for installation along the Hudson in 2025 with additional bridge air gap and current sensors to follow. The goal is to provide comprehensive coverage of the river’s tidal regions, particularly north of the Mario M. Cuomo Bridge, where there are critical gaps in maritime data.

Reserve staff are responsible for the operation and maintenance of the stations, while NOAA handles the management of data to inform decisions to promote safety, economic vitality, and ecological health of the Hudson River and its surrounding communities. 

“This project is an excellent example of a place-based monitoring program, like the kind Reserves have spearheaded for 40 years, that can be leveraged to ultimately benefit regional economies and keep Americans safer,” says Rebecca Roth, executive director of the National Estuarine Research Reserve Association.