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2020 November December Marina World

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PLANNING & DESIGN waves during storms and a newly built promenade quickly became a popular attraction for visitors. The marina is protected by breakwaters from the west and north and has eight docks mooring 320 private vessels, in addition to dry storage capacity for 200 smaller boats. R Raviv Consulting is designing the current expansion project with the help of Wallingford hydraulic research group in the UK. “An environmental impact report, requested by the Ministry of Natural Protection, provides answers to various issues, such as littoral sand transport and river estuary impact upon the Tel Aviv electrical power station, the siltation problem of the water cooling basin (which is going to be included in the first stage of the marina), agitation inside the marina – according to PIANC recommendations – and stability and overtopping of breakwaters,” says Rami Raviv, general director of R Raviv Consulting. The total length of the coastline put into the model is 10km (6mi), which includes ten detached stone breakwaters to protect the main public swimming areas of Tel Aviv city and its suburbs. Another marina – undergoing a US0 million improvement project – is Haifa-Kishon Marina. Located inside the landlocked Haifa Harbour, it will offer more options to boaters in the north of the country. When complete, the marina will offer 1,000 berths. The area is shallow and rocky and the marina build will include 35ha (86.5 acres) of reclaimed land, flooding an artificial inner lake with sea water to form a blue lagoon. “The design allows for sea water to circulate into and back out of the lake to guard against pollution and sea algae growth,” says Raviv. The US million project at Blue Marina in Ashdod, situated 70km (43mi) south of Tel Aviv city is for one of Israel’s newest marinas. Located in the middle of a beach zone with a maximum depth of 4.5m (15ft), it hosts 600 berths, a shipyard for boat maintenance and the surrounding area is being developed to offer hotels, restaurants, artificial lakes and promenades. “The marina layout is unique with regards to the jetties,” Raviv says. “There’s one main wide concrete entrance jetty, out of which the berthing jetties grow like a tree. The marina entrance is 65m (209ft) wide Eilat Marina is located on the Red Sea coast in the southernmost city of Israel and can be reached via the Suez Canal. and 7m (23ft) deep. The breakwater crest elevation is 7.5m (25ft) and the maximum short wave agitation height is about 30cm (12in).” Shavit Marina is another of Israel’s oldest marinas. It has capacity for 400 boats in a water depth of 4m (13ft) and is located in a land area of 2.2ha (5.4 acres) next to Kishon Park. The marina design involved dredging inland from the Kishon River estuary to create a fisherman’s port and marina. It includes floating jetties for 250 pleasure boats and 200m (656ft) of quay wall for commercial fishing boats, constructed from steel sheet piles. A port of entry to Israel, facilities available include electricity, water, toilets, showers and free WiFi through the marina. Since 2005, the Israel Ports Company has managed the 5.4ha (13.3 acre) site and planning is currently underway for the construction of a modern storage and dry storage area, as well as additional floating piers. R Raviv Consulting also put its design skills to use for Jaser A Zarka Fishermen’s Anchorage and the Israel Recreation Authority department has recently funded the development of this marina’s natural coastline to protect the harbour. The design includes natural dolomite armour stones laid upon and along the existing beach rock in order to create a breakwater – and the fishing boats’ anchorage area was enlarged by dredging sand and clay from the sea bottom. Other developments The remaining three existing marina developments comprise Herzliya Marina, Eilat Marina and Marina Ashkelon. Herzliya Marina lies 10km (6mi) north of Tel Aviv and opened to the public in 1995. It is the largest in Israel and one of the most environmentally innovative marinas in the eastern Mediterranean. It offers 800 berths for yachts up to 60m (197ft) in length and the marina complex includes the Arena shopping mall and a variety of restaurants overlooking the water. Services available include 24/7 security, fuelling and repair services. As one of the first marinas in Israel to receive the ‘Blue Flag’ eco-label, its design focused on sustainability. To protect the marine environment, it opted for an ECOncrete high texture seawall unit, composed of bio-enhanced concrete that provides suitable biological and environmental conditions that allow marine flora and fauna, such as oysters and algae, to attach and create a “living” seawall. Eilat caters to vessels up to 40m (131ft) long with 8m (26ft) beam. The marina is divided into two: an outer marina that serves as a passenger port and an internal marina in a nearby lagoon, with 800m (2,620ft) of docks and piers that moor about 350 vessels. The marina is located on the Red Sea coast in the southernmost city of Israel and can be reached through the Suez Canal. Eilat is a tourist centre with many hotels, beaches, diving sites and other attractions. Israel’s southernmost marina on the Mediterranean, Marina Ashkelon, is situated between Ashkelon’s beaches and provides full service berths, good security and access to multiple hotels, restaurants and archaeological sites. The marina has a maximum depth of 4m (13ft) and is divided in two by a central pier. Eight piers, with a total length of 1,500m (4,900ft), extend out from the centre. The marina is protected from storms by two surrounding breakwaters. It has around 600 moorings, storage areas and a 100 ton boatlift. 38 – November/December 2020

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