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The St. Peters Canal is a small shipping canal located in eastern Canada on Cape Breton Island. It crosses an isthmus in the village of St. Peter's, Nova Scotia which connects St. Peters Inlet of Bras d'Or Lake to the north with St. Peters Bay of the Atlantic Ocean to the south. In the vast majority of canals the flow of water is unidirectional. That is, the "high" side of the canal is always the same. St. Peter's Canal is unusual in that, due to the difference in the timing of the tides between Bras d'Or Lake and the ocean, during part of the tide cycle the Atlantic side is the higher, in other parts of the tide cycle it is the lake side. As a result, the canal requires special "double" gates, the only ones of their kind in North America. The usual canal lock has a gate at each end, each gate consisting of two swinging doors that when closed form a shallow 'V' shape, with the point of the 'V' pointing upstream. At the St. Peter's Canal lock each gate consists of four swinging doors which form a diamond shape when closed. In actual use the pair of doors which form the upstream pointing 'V' are used. No matter which side has the higher water level, either one pair or the other will be appropriate. Vessels transiting the canal are limited by the size of the lock, which measures 91.44 m (301 ft) long, 14.45 m (47 ft) wide, and 4.88 m (16 ft) draught. A swing bridge over the canal has 6 m (20 ft) of clearance and is operated from the bridge house on Denys Street. St. Peters Canal is the only working canal of national historic significance in Atlantic Canada and an important historic landmark for the Village of St. Peter’s and for Cape Breton Island. St. Peters Canal is part of a nationwide family of over 900 national historic sites, including 9 operating canals. ==Hours of operation== Prior to 2013, the canal operated from November 1 to mid-May, weather permitting, on a 24 hours' advance notice requirement. It operated seven days a week, from mid-May to mid-October each year, continuing with five-day-a-week operation (Monday to Friday) from mid-October to October 31. Through the early peak season (mid-June to mid-August) the canal was open for navigation from 8:00 am to 8:30 pm each day. The remainder of the peak season (mid-August to Labour Day) the hours were 8:00 am to 7:30 pm. In 2013 season Parks Canada reduced service to three days a week from May 17 to Jun 23, expanding to seven days a week operation from June 24 to September 8 and two days a week operation from September 9 to 22 (extended to October 14, 2013). The daily hours of operation were also cut back, with closure at 6:00 pm each day until August 11 when the closing time fell back to 4:00 pm.〔 (【引用サイトリンク】 St. Peters Canal Hours of Operation ) 〕 St. Peter’s Canal handles about 1,000 transits a year.〔 By its own estimate, Parks Canada believed 15 per cent of those boaters would be affected by the reduced hours of operation.〔 (【引用サイトリンク】 Parks Canada cuts affecting tourism near Cape Breton waterway ) 〕 Hours of Operation - 2015 ''May 16 to June 27'', Open Thursdays through Mondays, 8 a.m. — 4 p.m. ''June 28 to August 11'', Daily, 8 a.m. — 6 p.m. ''August 12 to September 14'', Daily, 8 a.m. — 4 p.m. ''September 15 to September 27'', Limited passage, Open Monday, Thursday and Friday from 8 a.m. to 4 p.m. Closed Tuesday, Wednesday and weekends ''September 28 and after:'' Please call ahead 902-535-2118 Contact Lockmaster on VHF–10 or by phone at 902-535-2118. Boats must arrive 30 minutes before the canal closes. Tie-up for transit is on the western wall of the lock approach. Grounds open year-round.〔 (【引用サイトリンク】 St. Peters Canal Hours of Operation ) 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「St. Peters Canal」の詳細全文を読む スポンサード リンク
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