breakwater, pier, revetment, shoreline, pilings, causeway, groyne, jetty, boardwalk, retaining wall, walkway, bulkhead, wharf, berm, reef, viaduct, seaward, lagoon, waterfront, dike, dune, pedestrian bridge, sandbar, graving dock, promenade, riprap, beach, waterline, sidewalk, levee, trestle bridge, beachfront, outfall, shorefront, marina, intracoastal waterway, roadbed, drawbridge, lighthouse, batture, bridge, inlet, oceanfront, overpass, pontoons, esplanade, roadway, docks, crossbeams, cofferdam, canal, headland, lakefront, quay, landward, sluiceway, cove, driftway, beach erosion, tidal basin, seafront, footbridge, coastline, millpond, dry dock, pavement, coquina, marsh, bayonne bridge, spillway, groins, chainlink fence, riverfront, slipway, caissons, culvert, shoal, harbor, riverbank, gangway, gazebo, foreshore, tideland, dam, railings, coastland, waterway, truss bridge, millrace, palisadoes, embankments, gaillard cut, pontoon bridge, bandshell, lakeshore, snowshed, weir, bascule, bascule bridge, cape flattery, trestle, sand castle, embankment, jetties, breakwaters, ramparts, tower, palisade, palisades, parapet, rampart, parapets, causeways

barrier

bulwark, groin, mole