Maps, Forms & Glossary

Any one of a number of wharf constructions consisting of a soil retaining bulkhead and a narrow platform. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

Progressive deterioration of rip rap / revetment under wave action. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

Rules of the City of New York (NYC Mayor's Office of Sustainability)

The manipulation of the physical, chemical, or biological characteristics of a site with the goal of returning natural historic functions to a former aquatic resource. Re-establishment results in rebuilding a former aquatic resource and results in a gain in aquatic resource area and functions. (US Army Corps of Engineers, 2012 Nationwide Permits, Conditions, and Definitions)

1. An arm of the ocean extending into the land, e.g., an ESTUARY. 2. A straight section of restricted waterway that is uniform with respect to discharge, slope, and cross-section. 3. an unbroken stretch of stream between two bends or rapids. (US Army Corps of Engineers, Coastal and Hydraulics Laboratory Glossary, 2015)

Abbreviation for "Reinforcing Bar",  the steel bar used to reinforce concrete. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

An external d.c. energy source that impresses electrical current upon a protected structure as part of an impressed current cathodic protection system. Commonly located on the deck of a marine structure. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

A single electrode that, when immersed in an electrolyte solution, produces a fixed, known electrical potential; it is used as a standard for the measurement of potential differences. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

(1) Process by which direction of a wave moving in shallow water at an angle to the contours is changed. Part of the wave advancing in shallower water moves more slowly than the part still advancing in deeper water, causing the wave crest to bend toward alignment with the underwater contours. (2) Bending of wave crests by currents. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

The manipulation of the physical, chemical, or biological characteristics of a site with the goal of repairing natural/historic functions to a degraded aquatic resource. Rehabilitation results in a gain in aquatic resource function, but does not result in a gain in aquatic resource area. (US Army Corps of Engineers, 2012 Nationwide Permits, Conditions, and Definitions)

A type of wharf construction that features a low level platform and batter piles to resist horizontal forces and fill placed on the platform to resist the vertical component of the batter pile forces. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

The manipulation of the physical, chemical, or biological characteristics of a site with the goal of returning natural historic functions to a former or degraded aquatic resource. For the purpose of tracking net gains in aquatic resource area, restoration is divided into two categories: re-establishment and rehabilitation. (US Army Corps of Engineers, 2012 Nationwide Permits, Conditions, and Definitions)

1. Bank protection by armor, that is, by facing of a bank or embankment with erosion-resistant material. 2. (NAVFAC DM-26.3) a facing built to protect a scarp, embankment, or shore structure against erosion by wave action or currents. 3. A facing of stone, concrete, etc., to protect an EMBANKMENT, or shore structure, against erosion by wave action or currents. 4. A retaining wall. 5. Facing of stone, concrete, etc., built to protect a SCARP, EMBANKMENT or shore structure against erosion by waves of currents. (US Army Corps of Engineers, Coastal and Hydraulics Laboratory Glossary, 2015)

Underground stem or root stock. New shoots are usually produced from the tip of the rhizome. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

Riffle and pool complexes are special aquatic sites under the 404(b)(1) Guidelines. Riffle and pool complexes sometimes characterize steep gradient sections of streams. Such stream sections are recognizable by their hydraulic characteristics. The rapid movement of water over a course substrate in riffles results in a rough flow, a turbulent surface, and high dissolved oxygen levels in the water. Pools are deeper areas associated with riffles. A slower stream velocity, a streaming flow, a smooth surface, and a finer substrate characterize pools. (US Army Corps of Engineers, 2012 Nationwide Permits, Conditions, and Definitions)

Land areas directly influenced by a body of water; usually pertains to the banks of a river, stream, or waterway that have visible vegetation or a physical characteristic showing influence by a water body. The 100 year flood plain plus any adjacent wetland integral to the surface water (U.S. vs. Riverside Bayview Homes, Inc., 474 U.S. 121, 106 S. Ct. 455 (1985). (New York State Department of Environmental Conservation, In-Water and Riparian Management of Sediment and Dredged Material, November 2004)

An undisturbed, vegetated strip of land adjacent to a water course. (US Army Corps of Engineers, Coastal and Hydraulics Laboratory Glossary, 2015)

A riparian area used to contain dredged material. (New York State Department of Environmental Conservation, In-Water and Riparian Management of Sediment and Dredged Material, November 2004)

Vegetation growing along banks of streams, rivers, and other water bodies tolerant to or more dependent on water than plants further upslope. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

Layer, facing, or protective mound of stones randomly placed to prevent erosion, scour, or sloughing of a structure or embankment; also, the stone so used. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

A line; a long flexible assembly of steel wires or fiber yarns, twisted, braided, or bundled together to serve as a tensile strength member. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

A line of piles perpendicular to a bent in a structure with a uniform pile layout. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

Rough and uncut stones, irregularly shaped and of various sizes, ranging up to 1,000 cu ft each and up to 90 tons each. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

The rush of water up a structure or beach on breaking of a wave. Amount of runup is the vertical height above stillwater level that the rush of water reaches. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

An anode that supplies its own electrons for cathodic protection, thereby consuming or "sacrificing" itself. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

An industry term denoting theoretical reserve capability. Usually computed by dividing the catalog stated ultimate load by the catalog stated working load limit and generally expressed as a ratio, for example, 5 to 1. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

The concentration of mineral salts dissolved in water. Salinity may be measured by weight (total dissolved solids), electrical conductivity, or osmotic pressure. Where sea water is known to be the major source of salt, salinity is often used to refer to the concentration of chlorides in the water. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

A marsh periodically flooded by salt water (also tidal marsh; sea marsh). (US Army Corps of Engineers, Coastal and Hydraulics Laboratory Glossary, 2015)

A layer of salt water that lies beneath a layer of fresh water within the lower reaches of an estuary; the separation of the two layers persists as the fresh water is substantially less dense than the salt water and the water column is not sufficiently mixed by wave and tidal action; the salt water layer decreases in depth with increasing elevation of the channel bottom, with the upstream point defined by an intercept with the bottom; the salt wedge moves downstream and upstream within the distributary channels of a estuary with outgoing and incoming tides, respectively. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

Generally, coarse-grained soils having particle diameters between 0.18 and approximately 0.003 inches. Sands are intermediate between Silt and Gravel. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

Accretion trapped by a groin or other protrusion in the littoral zone. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

Cloth bag filled with sand or grout and used as a module in a shore protection device. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

By-product from the oxidation of a ferrous metal member which has hardened and become stratified. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

A low, steep slope along a beach caused by wave erosion. (Virginia Institute of Marine Science, Living Shoreline Design Guidelines for Shore Protection in Virginia' s Estuarine Environments, 2010)

Removal of underwater material by waves or currents, especially at the base or toe of a shore structure. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

Type of metal anchor screwed into the bottom for holding power. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

The average height of the water' s surface. (Virginia Institute of Marine Science, Living Shoreline Design Guidelines for Shore Protection in Virginia' s Estuarine Environments, 2010)

A massive gravity-type structure built along, and generally parallel to, the shoreline; designed to protect the shore against erosion resulting from wave action. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

Prohibits the obstruction or alteration of navigable waters of the United States without a permit from the Corps of Engineers. (US Army Corps of Engineers, New York District, Regulatory Branch)

Prohibits the obstruction or alteration of navigable waters of the United States without a permit from the Corps of Engineers. (US Army Corps of Engineers, New York District, Regulatory Branch)

Requires applicants to obtain a certification or waiver from the New York State Department of Environmental Conservation for any activity that may result in a discharge of a pollutant into waters of the United States, including any dredged or fill materials. This agency reviews the effect on water quality standards. (US Army Corps of Engineers, New York District, Regulatory Branch)

Prohibits the discharge of dredged or fill material into waters of the United States without a permit from the Corps of Engineers. The phrase "waters of the United States" includes navigable waters, but also includes non-navigable waterbodies, perennial and intermittent streams, wetlands, mudflats, and ponds. (US Army Corps of Engineers, New York District, Regulatory Branch)

Prohibits the discharge of dredged or fill material into waters of the United States without a permit from the Corps of Engineers. The phrase "waters of the United States" includes navigable waters, but also includes non-navigable waterbodies, perennial and intermittent streams, wetlands, mudflats, and ponds. (US Army Corps of Engineers, New York District, Regulatory Branch)

Solid fragments of inorganic or organic material that come from the weathering of rock and are carried and deposited by wind, water, or ice. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

The sediment transported through a channel by stream flow. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

Numeric, effects-based concentrations that provide an interpretive tool to relate ambient sediment chemistry data to potential adverse biological impacts. (New York State Department of Environmental Conservation, In-Water and Riparian Management of Sediment and Dredged Material, November 2004)

Tide with two high and two low waters in a tidal day, each high and each low approximately equal in stage. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

The service area of a wetland or natural habitat mitigation bank shall be consistent with that in the Federal Guidance for the Establishment, Use and Operation of Mitigation Banks (60 FR 58605, November 28, 1995), i.e., the designated area (e.g., watershed, county) wherein a bank can be expected to provide appropriate compensation for impacts to wetlands and/or other aquatic or natural habitat resources. (Electronic Code of Federal Regulations, Title 23, Part 777, March 2016)

Commonly, water of such a depth that surface waves are noticeably affected by bottom topography. It is customary to consider water of depths less than one-twentieth the surface wavelength as shallow water. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

The internal resistance of a body to shear stress. Typically includes frictional and cohesive components. Expresses the ability of soil to resist sliding. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

The force per unit area tending to deform a material in the direction of flow. The pull on a bank that may cause it to slide. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

Interlocking structural elements driven into the ground to form a retaining structure. Sheet piles can be timber, steel, or concrete. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

The placement of shellfish seed and/or suitable substrate to increase shellfish production. Shellfish seed consists of immature individual shellfish or individual shellfish attached to shells or shell fragments (i.e., spat on shell). Suitable substrate may consist of shellfish shells, shell fragments, or other appropriate materials placed into waters for shellfish habitat. (US Army Corps of Engineers, 2012 Nationwide Permits, Conditions, and Definitions)

A resulting load or force from the rapid change of movement, such as impacting or jerking, of a static load. A shock load is generally significantly greater than the static load. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

Narrow strip ofland in immediate contact with the sea, inc uding the zone between high and low water lines. A shore of unconsolidated material is usually called a beach. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

The compass direct the shoreline faces. (Virginia Institute of Marine Science, Living Shoreline Design Guidelines for Shore Protection in Virginia' s Estuarine Environments, 2010)

Intersection of a specified plane of water with the shore or beach (e.g., the high water shoreline would be the intersection of the plane of mean high water with the shore or beach). Line delineating the shoreline on National Ocean Survey nautical charts and surveys approximates the mean high water line. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

Shotcrete (or gunite) is a concrete that is pneumatically placed in layers usually from 1 in. to 2 in. thick. Water is mechanically added to the dry mixture at the nozzle that shoots the freshly mixed concrete (really a mortar) at the surface prepared for its reception. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

The average wave height (trough to crest) of the one-third largest waves. (Virginia Institute of Marine Science, Living Shoreline Design Guidelines for Shore Protection in Virginia' s Estuarine Environments, 2010)

Low offshore barrier structure whose crest is usually submerged, designed to retain sand on its landward side. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

Loose sedimentary material with rock particles measuring 4 to 62.5 micrometers in diameter. (New York State Department of Environmental Conservation, In-Water and Riparian Management of Sediment and Dredged Material, November 2004)

The term "single and complete project" is defined at 33 CFR 330.2(i) as the total project proposed or accomplished by one owner/developer or partnership or other association of owners/developers. For linear projects, the "single and complete project" (i.e., a single and complete crossing) will apply to each crossing of a separate water of the U.S. (i.e., a single water body) at that location. An exception is for linear projects crossing a single water body several times at separate and distant locations: each crossing is considered a single and complete project. However, individual channels in a braided stream or river, or individual arms of a large, irregularly shaped wetland or lake, are not separate water bodies. (US Army Corps of Engineers New York District, Regulatory Program Applicant Information Guide, 2014)

A hole or void in the upland area of a soil retaining structure that is formed due to the loss of fill. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

A berthing space between two piers. (US Army Corps of Engineers, Coastal and Hydraulics Laboratory Glossary, 2015)

Degree of inclination to the horizontal. Usually expressed as a ratio, such as 1:25 or 1 on 25, indicating I-unit vertical rise in 25 units of horizontal distance; or in degrees from horizontal. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

Slippage of the slope of an embankment or excavation. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

An applied science that combines structural, biological, and ecological concepts to construct living structures for erosion, sediment, and flood control. It is always based on sound engineering practices integrated with ecological principles. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

Deterioration of a concrete surface usually caused by the expansion of corrosioning reinforcing steel. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

Detailed description of particulars, such as size of stone, quality of materials, contractor performance, terms, and quality control. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

The portion of a marine structure subject to alternate wetting and drying due to tide and wave action. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

The average height of the high waters of the spring tides is called spring high water or mean high water springs (MHWS) (https://tidesandcurrents.noaa.gov/publications/tidal_datums_and_their_applications.pdf)

Article 8 of the New York State Environmental Conservation Law. SEQRA requires that state and local governmental agencies assess environmental effects of discretionary actions before undertaking, funding or approving such actions, unless they fall within certain statutory or regulatory exemptions from the requirements for review. SEQRA is implemented by 6 NYCRR Part 617. (NYC Mayor's Office of Sustainability)

New York State has a State program that has been approved by the United States Environmental Protection Agency for the control of wastewater and storm water discharges in accordance with the act. Under New York State law the program is known as the State Pollutant Discharge Elimination System (SPDES) and is broader in scope than that required by the act in that it controls point source discharges to groundwaters as well as surface waters. (New York State Department of Environmental Conservation)

A Statement of Findings is a written statement prepared by each involved agency after an FEIS has been filed that considers the relevant environmental impacts presented in an EIS, weighs and balances them with social, economic, and other essential considerations, provides a rationale for the agency's decision, and certifies that the CEQR requirements have been met. (NYC Mayor's Office of Sustainability)

Elevation that the surface of the water would assume if all wave action were absent. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

1. A rise above normal water level on the open coast due to the action of wind stress on the water surface. Storm surge resulting from a hurricane also includes that rise in level due to atmospheric pressure reduction as well as that due to wind stress. (See wind setup) 2. A departure from a normal elevation of the sea due to the piling up of water against a coast by strong winds such as those accompanying a hurricane or other intense storm. Reduced atmospheric pressure often contributes to the departure height during hurricanes. It is potentially catastrophic, especially, in deltaic regions with onshore winds at the time of high tide and extreme wind wave heights. (US Army Corps of Engineers, Coastal and Hydraulics Laboratory Glossary, 2015)

Stormwater management is the mechanism for controlling stormwater runoff for the purposes of reducing downstream erosion, water quality degradation, and flooding and mitigating the adverse effects of changes in land use on the aquatic environment. (US Army Corps of Engineers, 2012 Nationwide Permits, Conditions, and Definitions)

Stormwater management facilities are those facilities, including but not limited to, stormwater retention and detention ponds and best management practices, which retain water for a period of time to control runoff and/or improve the quality (i.e., by reducing the concentration of nutrients, sediments, hazardous substances and other pollutants) of stormwater runoff. (US Army Corps of Engineers, 2012 Nationwide Permits, Conditions, and Definitions)

The formation of distinct layers of sediments having the same general composition (grain size, quality), arranged one on top of another. (New York State Department of Environmental Conservation, In-Water and Riparian Management of Sediment and Dredged Material, November 2004)

A watercourse or portion thereof, including the bed and banks thereof. Small ponds or lakes with a surface area at mean low water level of 10 acres or less and located in the course of a stream shall be considered part of a stream and subject to regulation under this Part. A stream does not include a pond or lake having a surface area of greater than 10 acres at mean low water level. (Rules and Regulations of the State of New York, Title 6. Dept. of Environmental Conservation, Chapter 5. Subchapter E, Part 608. Use and Protection of Waters, Definitions)

The substrate of the stream channel between the ordinary high water marks. The substrate may be bedrock or inorganic particles that range in size from clay to boulders. Wetlands contiguous to the stream bed, but outside of the ordinary high water marks, are not considered part of the stream bed. (US Army Corps of Engineers, 2012 Nationwide Permits, Conditions, and Definitions)

The manipulation of a stream's course, condition, capacity, or location that causes more than minimal interruption of normal stream processes. A channelized stream remains a water of the United States. (US Army Corps of Engineers, 2012 Nationwide Permits, Conditions, and Definitions)

A horizontal framing member used to support a floor or deck. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

An object that is arranged in a definite pattern of organization. Examples of structures include, without limitation, any pier, boat dock, boat ramp, wharf, dolphin, weir, boom, breakwater, bulkhead, revetment, riprap, jetty, artificial island, artificial reef, permanent mooring structure, power transmission line, permanently moored floating vessel, piling, aid to navigation, or any other manmade obstacle or obstruction. (US Army Corps of Engineers, 2012 Nationwide Permits, Conditions, and Definitions)

Means restoration or rebuilding involving 50 percent or more of an existing fixed structure's surface area. (Rules and Regulations of the State of New York, Title 6. Dept. of Environmental Conservation, Chapter 5. Subchapter E, Part 608. Use and Protection of Waters, Definitions)

The base on which an organism lives. (New York State Department of Environmental Conservation, In-Water and Riparian Management of Sediment and Dredged Material, November 2004)

Pertaining to that area of the shoreline below the low tide elevation. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

That portion of precipitation that moves over the ground toward a lower elevation and does not infiltrate the soil. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

A compound that reduces surface tension (as a detergent). (New York State Department of Environmental Conservation, In-Water and Riparian Management of Sediment and Dredged Material, November 2004)

A detailed study or inspection to determine the location, form, boundaries, or condition of a structure, an area of water, or tract of land. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

The zone of wave action on the beach, which moves as water levels vary, extending from the limit of run-down to the limit of run-up. (US Army Corps of Engineers, Coastal and Hydraulics Laboratory Glossary, 2015)

Wind-generated waves traveling out of their generating area. Swell characteristically exhibits a more regular and longer period, and has flatter crests than waves within their fetch. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

A geological term for a step-like landform that borders a shoreline or river floodplain and represents the former position of either a floodplain or the shoreline of a lake, sea, or ocean. A terrace consists of a flat or gently sloping geomorphic surface that is typically bounded one side by a steeper ascending slope, which called a ñriserî or ñscarp,î on one side and a steeper descending slope (riser or scarp) on its other side. (Virginia Institute of Marine Science, Living Shoreline Design Guidelines for Shore Protection in Virginia' s Estuarine Environments, 2010)

Includes all the waters of the North River, the East River and the Harlem River, and all the tidal waters embraced within or adjacent to or opposite the shores of The City of New York. (Rules of the City of New York, Title 66: Department of Small Business Services)

Difference in height between consecutive high and low or higher high and lower low) waters. The mean range is the difference in height between mean high water and mean low water. The diurnal range is the difference in height between mean higher high water and mean lower low water. For diurnal tides, the mean and diurnal range are identical. For semidiurnal and mixed tides, the spring range is the difference in height between the high and low waters during the time of spring tides. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

A tidal wetland is a wetland (i.e., water of the U.S.) that is inundated by tidal waters. The definitions of a wetland and tidal waters can be found at 33 CFR 328.3(b) and 33 CFR 328.3(f), respectively. Tidal waters rise and fall in a predictable and measurable rhythm or cycle due to the gravitational pulls of the moon and sun. Tidal waters end where the rise and fall of the water surface can no longer be practically measured in a predictable rhythm due to masking by other waters, wind, or other effects. Tidal wetlands are located channelward of the high tide line (i.e., spring high tide line) and are inundated by tidal waters two times per lunar month, during spring high tides. (US Army Corps of Engineers New York District, Regulatory Program Applicant Information Guide, 2014)

Generally, tidal wetlands or wetland shall mean any lands delineated as tidal wetlands on an inventory map and shall comprise the following classifications as delineated on such map: Coastal fresh marsh; intertidal marsh; coastal shoals, bars and flats; littoral zone; high marsh or salt meadow; or formerly connected tidal wetlands. Tidal wetlands are more fully defined in ECL _25-0103(1) and its implementing regulations. (New York State Department of Environmental Conservation, In-Water and Riparian Management of Sediment and Dredged Material, November 2004)

A tidal wetland is a wetland (i.e., water of the U.S.) that is inundated by tidal waters. The definitions of a wetland and tidal waters can be found at 33 CFR 328.3(b) and 33 CFR 328.3(f), respectively. Tidal waters rise and fall in a predictable and measurable rhythm or cycle due to the gravitational pulls of the moon and sun. Tidal waters end where the rise and fall of the water surface can no longer be practically measured in a predictable rhythm due to masking by other waters, wind, or other effects. Tidal wetlands are located channelward of the high tide line (i.e., spring high tide line) and are inundated by tidal waters two times per lunar month, during spring high tides. (US Army Corps of Engineers New York District, Regulatory Program Applicant Information Guide, 2014)

Generally, tidal wetlands or wetland shall mean any lands delineated as tidal wetlands on an inventory map and shall comprise the following classifications as delineated on such map: Coastal fresh marsh; intertidal marsh; coastal shoals, bars and flats; littoral zone; high marsh or salt meadow; or formerly connected tidal wetlands. Tidal wetlands are more fully defined in ECL ¤25-0103(1) and its implementing regulations. (New York State Department of Environmental Conservation, In-Water and Riparian Management of Sediment and Dredged Material, November 2004)

Periodic rising and falling of water resulting from gravitational attraction of the moon, sun and other astronomical bodies acting upon the rotating earth. Although the accompanying horizontal movement of the water resulting from the same cause is also sometimes called tide, it is preferable to designate the latter as tidal current, reserving the name Tide for vertical movement. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

A steel rod used to secure a bulkhead or retaining wall to a deadman. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

A timber member, usually round, driven or otherwise embedded into the ground to serve as a structural support. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

The required driving depth for piles. (Driving criteria dictates tip elevation.) (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

The break in slope at the foot of a river bank where it meets the river bed. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

A method of interlocking adjacent members whereby one edge of a member has a projection (tongue) to fit into a recess (groove) in the adjacent member. Design often used to interlock timber or concrete sheet piles. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

The break in slope between the river bank and the surrounding upland terrain. (Hudson River National Estuarine Research Reserve, Hudson River Shoreline Restoration Alternatives Analysis, 2006)

Configuration of a surface, including relief, position of streams, roads, buildings, etc. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

The finished surface (wearing surface) provided on top of an existing surface. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

The amount of carbon covalently bound in organic compounds. (New York State Department of Environmental Conservation, In-Water and Riparian Management of Sediment and Dredged Material, November 2004)

1. (EM 1110-2-5026) A term describing the limit of intolerance of organisms to survive lethal chronic or short-term subjection to certain chemical and contaminating substances physical and environmental conditions. 2. The level of mortality by a group of organisms that have been affected by the properties of a substance, such as contaminated water, sediment, or dredged material. (US Army Corps of Engineers, Coastal and Hydraulics Laboratory Glossary, 2015)

A test that measures the mobility of organic and inorganic chemical contaminants in wastes. (New York State Department of Environmental Conservation, In-Water and Riparian Management of Sediment and Dredged Material, November 2004)

A steel tube used for depositing concrete underwater, having at its upper end a hopper for filling. (New York City Economic Development Corporation, Waterfront Facilities Maintenance Management System, May 2016)

Lowest part of a waveform between successive crests. Also, that part of a wave below stillwater level. (US Army Corps of Engineers, Low Cost Shore Protection: A Property Owner's Guide, 2004)

An action that is more likely to have a significant adverse impact on the environment than other actions or classes of actions. A list of Type I actions appears in the SEQR regulations at 6 NYCRR 617.4 and are supplemented with a city-specific list found at 43 RCNY 6-15. (NYC Mayor's Office of Sustainability)

An action that has been either found categorically not to have significant adverse impacts on the environment or statutorily exempted from review under SEQRA, and correspondingly, CEQR. No action or class of actions listed as Type II in 6 NYCRR 617.5 requires further review under CEQR. (NYC Mayor's Office of Sustainability)