![]() A physical model was considered to be the most appropriate method for obtaining the desired information, provided that acceptable representation could be achieved. The extreme complexity of tidal flow in this area makes a detailed understanding of their characteristics very difficult, if not almost impossible, by field observations alone. Barnes to investigate the tidal currents in Admiralty Inlet. The model was constructed in 1950 with funds provided by the Office of Naval Research and under the direction of Professor Clifford A. The principal physical characteristics of Puget Sound and some representative tidal data are summarized in Table 1. The time difference is variable, depending on characteristics of the tidal sequence, but approximates one hour and twenty minutes for high tides and about two hours and fifteen minutes for low tides between Port Townsend and Olympia. The diurnal range, the difference in height between Higher High tide and Lower Low tide, averages 8.3 feet at Port Townsend and 14.4 feet at Olympia. Bathymetry and the System configurations result in a progressive increase in the range of the tides and the delay in times of high and low water toward the south from Port Townsend at the northern end of Admiralty Inlet. The tidal range between high and low waters varies markedly with the greater variability occurring in the heights of the low waters. Tides are of the mixed type in which two highs and two lows occur each tidal day of 24 hours 50 minutes. Freshwater inflow from rivers amounts to a yearly mean of 41,000 cubic feet per second (cfs), ranging form a peak near 367,000 cfs to a minimum of about 14,000 cfs. A shoreline of 2,144 kilometers (1,332 miles) encloses a water area of 2,642 square kilometers (1,020 square miles) at Mean High Water. The Puget Sound System extends approximately 160 kilometers (100 statute miles) from Deception Pass south to Olympia at the southern end of Budd Inlet. Deception Pass is the northern terminus of the Whidbey Basin. The fourth basin is the Whidbey Basin, comprised of Possession Sound, Port Susan, Saratoga Passage, and Skagit Bay. In each case sill depths are approximately 73 meters (40 fathoms) and basin depths generally are near or exceed 180 meters (100 fathoms). The Southern Sound entrance sill is at The Narrows. The three major fjord-like basins include the Main Basin, with an entrance sill located at the northern portion of Admiralty Inlet near Port Townsend Hood Canal, with its entrance sill at the northern end near the location of the Hood Canal floating bridge and Southern Sound, which is a complex of two large inlets and numerous smaller inlets and connecting channels. The principal entrance from the Strait of Juan de Fuca is at the northern end of Admiralty Inlet, with a much smaller connection through Deception Pass. Puget Sound is a complex estuarine system of four major interconnecting basins, three of which have fjord-like characteristics. Hanbury Point, Mosquito Pass, San Juan I.Puget Sound is the southern arm of the inland waterway system that also includes the Strait of Juan de Fuca and Strait of Georgia.Shaw Island, Ferry Terminal, Harney Channel.Holly Farms Harbor, Holmes Harbor, Whidbey I.Dofflemeyer Point, Boston Hbr., Budd Inlet.Yoman Point, Anderson Island, Balch Passage.Tahlequah, Neil Pt., Dalco Passage, Vashon I. ![]() Bremerton, Sinclair Inlet, Port Orchard.Naselle River, 4 miles above swing bridge.Possession Sound and Port Susan and Saratoga Passage and Skagit Bay.Strait of Juan de Fuca, Admiralty Inlet, and Hood Canal.Jump to the following subregions of Washington: Select (highlight) the month, start date, and total days. Pick the site in Washington for the tides. ![]()
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