Hydraulic Channel Geometry of Selected Tidal Rivers in Coastal Massachusetts - Northeast Aquatic Biologists Annual Conference, 2025
linkThe U.S.
Brian J Nelson
Brian Nelson is a Hydrologic Technician in the New England Water Science Center.
Brian received his Bachelor's Degree in Chemical Engineering from the University of New Hampshire, and then served in the United States Marine Corps where worked on biofuel mixtures for generator power and solar powered water purification units in Afghanistan. Since then he also gained hydrologic experience while rebuilding dams and outfitting for hydroelectric power. He is currently working on the FEMA floodplain mapping project.
Science and Products
Hydraulic Channel Geometry of Selected Tidal Rivers in Coastal Massachusetts - Northeast Aquatic Biologists Annual Conference, 2025
Installing High-Water Mark on a Building
A USGS hydrologic technician points to a high-water mark he just installed on the side of a building in Barre, Vermont after flooding in July 2023. The mudline on the exterior of the building indicates how high the flood waters rose, and the high-water mark is a data reference USGS supplies to Federal Emergency Management Agency (FEMA).
A USGS hydrologic technician points to a high-water mark he just installed on the side of a building in Barre, Vermont after flooding in July 2023. The mudline on the exterior of the building indicates how high the flood waters rose, and the high-water mark is a data reference USGS supplies to Federal Emergency Management Agency (FEMA).
Pearl Hill Brook in Ashby, Massachusetts
Pearl Hill Brook at Mill Creek Drive in Ashby, Massachusetts on October 1, 2021. The drop at the outflow of the culvert would impede aquatic organism passage.
Pearl Hill Brook at Mill Creek Drive in Ashby, Massachusetts on October 1, 2021. The drop at the outflow of the culvert would impede aquatic organism passage.
Unnamed tributary to Trapfall Brook in Ashby, Massachusetts
Unnamed tributary to Trapfall Brook at Harris Road in Ashby, Massachusetts, on October 1, 2021. The shallowness of water in the culvert could impede aquatic organism passage.
Unnamed tributary to Trapfall Brook at Harris Road in Ashby, Massachusetts, on October 1, 2021. The shallowness of water in the culvert could impede aquatic organism passage.
Science and Products
Hydraulic Channel Geometry of Selected Tidal Rivers in Coastal Massachusetts - Northeast Aquatic Biologists Annual Conference, 2025
linkThe U.S.
Installing High-Water Mark on a Building
A USGS hydrologic technician points to a high-water mark he just installed on the side of a building in Barre, Vermont after flooding in July 2023. The mudline on the exterior of the building indicates how high the flood waters rose, and the high-water mark is a data reference USGS supplies to Federal Emergency Management Agency (FEMA).
A USGS hydrologic technician points to a high-water mark he just installed on the side of a building in Barre, Vermont after flooding in July 2023. The mudline on the exterior of the building indicates how high the flood waters rose, and the high-water mark is a data reference USGS supplies to Federal Emergency Management Agency (FEMA).
Pearl Hill Brook in Ashby, Massachusetts
Pearl Hill Brook at Mill Creek Drive in Ashby, Massachusetts on October 1, 2021. The drop at the outflow of the culvert would impede aquatic organism passage.
Pearl Hill Brook at Mill Creek Drive in Ashby, Massachusetts on October 1, 2021. The drop at the outflow of the culvert would impede aquatic organism passage.
Unnamed tributary to Trapfall Brook in Ashby, Massachusetts
Unnamed tributary to Trapfall Brook at Harris Road in Ashby, Massachusetts, on October 1, 2021. The shallowness of water in the culvert could impede aquatic organism passage.
Unnamed tributary to Trapfall Brook at Harris Road in Ashby, Massachusetts, on October 1, 2021. The shallowness of water in the culvert could impede aquatic organism passage.