I — Continued 



Inlets 4-124, 4rl46, 5-24 



barrier beach (barrier islands) 1-5 



effect on barrier beaches 1-12 



inner bar 1-12 



jetties, use of 5-24 



middleground shoal 1-12, 4-124, 5-24, A-22 



outer bar 1-12, 5-24 



stabilization (by jetty) , 5-46, 6-65 



tidal A-38 



types 4-147, 4-148, 4-149 



Inner bar (inlet) 1-12 



Inshore 1-3, A-18 



Instrumentation (wave data) 7-2 



Interlocking concrete blocks 6-6, 6-12 



Internal friction angle 7-211 



Internal waves A-18 



Irrotational wave A-18 



Isbash coefficient 7-204 



Isobar 3-22 



--J 



Jetties 1-17, 5-24, 5-46, 6-84 



definition 5-46, A-19 



effect on littoral transport 5-24 



effect on shoreline 5-48 



functional planning 5-46 



inlet stabilization 5-46, 6-65 



legal aspects 5-30 



purpose of 5-24, 5-46 



shoreline effects 5-48, 5-49 



structural design 6-84, 6-88 



Kahului, Hawau 6-89, 7-192 



Kenosha, Wisconsin 4-90 



Ketchikan, Alaska 3-73 



Lagoon 1-5, A-19 



Laguna Point, California 4-129, 4-130 



La JoUa, California 4-127 



Lake Erie 3-134, 3-135, 3-136, 3-137, 3-138, 3-142 



Lake levels 3-76 



Great Lakes 3-76 



Lake Okeechobee, Florida . . . 3-56, 3-126, 3-129, 3-130, 



7-39 



Lake Worth, Florida 4-34 



Lake Worth Inlet, Florida 6-54, 6-56, 6-58 



Land-based vehicles (sand bypassing) . . . 5-30, 6-54, 6-76 



Layer coefficient 7-196, 7-197, 7-198 



Legal aspects 5-30 



breakwater 5-31 



groins 5-46 



jetties 5-30 



sand bypassing 5-30 



Length 



fetch 3-29 



waves (see Wavelength) 



Lewes, Delaware 8-17, 8-19, 8-20, 8-32 



Lift coefficient 7-96, 7-97 



Lift forces 7-95 



Linear wave theory (see Wave, Airy Theory) 



Littoral barrier (see also Sand, impoundment) . 5-48, 5-50, 



6-54 



types 6-55 



Littoral current A-8 



Littoral drift 1-10, 4-88, A-20 



origin 4-119 



properties 4-60 



sinks 4-117, 4-124, 4-125 



Littoral materials (see also Sand) 4-11, 4-20 



composition 4-18, 4-20, 4-21 



Jetties— Continued 



types 5-25, 5-26, 5-46, 6-84 



rubble-mound 6-84 



sheet-pile 6-88 



uses 5-24 



weir 6-65 



Johnston Island, Hawaii 3-75 



Jones Beach, Long Island, New York .. 4-12,4-71,4-72, 



4-74,4-115 



Jones Beach State Park, New York 1-6 



Jupiter Island, Florida 6-12 



K-- 



KeyWest, Florida 3-72 



Kinetic energy (waves) 2-27, A-19 



Kinematic viscosity 7-64, 7-96, 7-99, 7-102 



L- 



Littoral materials— Continued 



immersed weight 4-102 



occurrence (U.S.) 4-22, 4-24 



origin 4-119 



properties 4-60 



sampling 4-24, 4-147 



sand sizes 4-78 



sinks 4-117, 4-124, 4-125 



size distribution 4-22, 4-23, 4-24, 4-68, 4-102 



Littoral transport (see also Longshore transport) . . 1-10, 



4-4, 4-11, 4-50, 4-131, 4-153, A-20 



bedload 4-53, 4-54, A-20 



longshore component 1-10, 4-11 



onshore-offshore . 1-10, 4-52, 4-60, 4-70, 4-121, 4-127, 



4-153 



rate A-20 



seaward limit 4-65 



sediment budget 4-116, 4-131, 4-154 



suspended load 4-53, 4-54 



tracers 4-150 



wave climate 4-27, 4-28, 4-29 



Littoral trap (see Sand, impoundment) 



Littoral zone 4-4, 4-43, 4-52, 4-70, A-20 



long-term changes 4-6 



short-term changes 4-6 



Load A-20 



Long Beach, California 6-96 



Long Beach Island, New Jersey 4-12, 4-72 



Long Branch, New Jersey 4-70 



Long Island, New York 6-82 



Long Island, New York (south shore) . . 4-51, 4-58, 4-59, 



4-146, 4-150 



Longshore bar 4-11, 4-43, 4-56, 4-57, 4-78 



Longshore current 1-9, 1-10, 4-4, 4-5, 4-45, 4-48, A-8 



velocity 4-45, 4-47, 4-48 



D-6 



