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Parks Victoria Regulation - OldOld 

Parks Victoria Public Moorings - New

JEYCO Specifications

 
 

Overview.

These mooring specifications are to be read as minimum, yet are practical requirements to enable boats to be moored securely and safely at Mornington.
It is the responsibility of the boat owner to conduct frequent inspections of their boat’s mooring tackle, particularly the riding chain and connections.
Acceptance of these specifications implies no liability or warranty that they are suitable or will be effective for any particular circumstance.
 

Swing Moorings

The mooring tackle is to consist of three anchors connected by a bridle of ground chain. A separate upchain (or riding chain) is to be connected from a bull-ring in the centre of the bridle. The upchain must be designed to enable its removal for inspection and repair.

 
Sites.
Moorings are to be correctly located on to the mooring sites. Tackles are to be laid so as one leg lies to the North, the shorter leg to the South and the third leg to the West. The central bull-ring should be located within 1.5 metres of the site and tackles are to be stretched “firmly” in all directions, anchors to be driven or secured into the seabed so as not to be protruding. Any foreign matter in and around the site is to be reported to the harbour master to determine responsibility for its removal.
 

Ground Chain

Ground chain is to be stud link (second hand or new) chain having a minimum dimension of 28mm diameter. Ideally 32mm chain is to be utilized.
 
Note: For light displacement boats, boats up to 8 metres in length or for boats weighing less than 3 tonne, the ground chain is to be a minimum of 25mm in diameter.
 

The ground chain is to be fitted with three anchors, the minimum requirement being 60lb plough anchors (or clone) to both the northern and the western legs and a 45lb plough anchor to the southern leg.

 
The bullring is to be an approved lifting ring or to be a minimum of 32mm bar fully overlapped and welded into the links.
 
Mooring tackles are to fully welded on installation, (Where it is necessary to add additional tackle throughout the life of a mooring, this is acceptable provided new bullrings or legs utilize hammerlocks which require regular inspection and where drilled and pinned shackles are secured or pinned at the anchor end of the legs only.)
 
Note that shackles are not acceptable when utilized for joining tackles within 10metres of the central bullring.
The minimum length of each chain leg of the bridle is as follows:
North   45ft or 13.6m
West   45ft or 13.6m
South 36ft or 11m
 
It is recommended that where boats are positioned in the exposed sites, that the Northern and Western legs are a minimum of 60ft or 18.2mtr in length.
 
Upchain (Riding Chains)

The upchain is the chain that connects from the bridle to the boat. The maintenance of a properly designed upchain is paramount in ensuring that boats remain on site throughout all weather conditions. Even circumstances where there is no wind, it is important to recognize that the chain links are constantly grinding on the seabed.

 
The mooring tackle is only as strong as the weakest link and one must consider that the strength of the upchain must be fully retained to the day it is next removed for repair or inspection.
 
Upchain Length.

Upchains are to be measured from the bullring to the top of the loop. Lengths are to be twice the depth of chart datum plus 2 mtrs plus the length of freeboard i.e. cleat to waterline.

An example of calculated length is to be as follows:
 
Depth at low tide                                                      6.3mtr
Allowance for high water and wave action                     2.0mtr
                                                                             8.3mtr
Multiply by factor of 2                                              16.6mtr
Waterline to cleat                                                     3.0mtr
Total length                                                            9.6mtr
 
Note that in unprotected sites, where it is practical to do so, upchains may be extended by an additional 2mtr subject to approval by the harbour master.
 
Upchains are to consist of a swivel, bullring and chains of differing diameter and all connections are to fully welded. Where shackles are utilised, they should be a minimum of 3mm heavier than the adjacent chains and should be fully welded. The only exception is the shackle in the loop, which should be a minimum pin size of 13mm and is to be seized. Stainless shackles that allow seizing are appropriate. Swivels are to be of commercial quality and a minimum size as follows:
 
Boats under 2 tonne                       20mm swivel
Boats under 8 tonne                       25mm swivel
Boats in excess of 8 tonne               28mm +
 

They are to be located midway in the upchain so as to be positioned just above the seabed in their normal position. Chains are to be staged to ensure:

 
  • Boats swing in parallel to other site holders.
  • Chains are consistent in their construction to other site holders
 
Recommended staging of the upchains is as follows, based on an upchain length of 20mtrs.
 
Top chain – 4 metres x 13mm galvanized chain. (Note shackle in loop is to be a minimum pin size of 13mm).
-         4.5 metres of 13mm regular link chain 22mm swivel
-         3.5 metres of 16mm regular link chain
-         3 metres of 20mm regular link chain
-         3 metres of 25mm or 32mm stud link chain.
 
Note: Upchains will vary depending on the size and weight of the boat and the mooring site. Some boats will require 16mm chain right to the cleat while others will require less stud link chain. It is critical that no chain smaller than 13mm rests on the seabed at any time. Consult your harbour master or diving contractor for additional information.
 

Webbing Straps

The use of webbing straps may only be utilized after approval by the harbour master. Straps are to be welded or looped out to the upchain. Straps are to be regularly inspected, of commercial quality  and exceed the minimum breaking strain of 13mm chain.

 

Floats

Floats are to be of plastic non-sinkable (foam filled) or wood and to have sufficient buoyancy to remain afloat in all weather conditions. A commonly utilized foam buoy with a staff is suitable. Buoys are to be engraved or stamped with the site number in 13mm lettering. Buoys are to be connected to the upchain by either rope or chain to ensure that at low tide they are self supporting and that rope is now floating or slack.
 
It is the responsibility of the boat owner to conduct frequent inspections of boat mooring tackle particularly the upchain and connections
 
 
 
 
 
 
 

 

Sport Phillip Marine services the boating, yachting & fishing needs of the Mornington Peninsula from Frankston, Daveys Bay, Mt. Eliza, Mornington, Mt. Martha, Safety Beach, Martha Cove, Dromana, Rosebud, Rye, Blairgowrie, Sorrento and Portsea on Port Phillip Bay to Yaringa, Warneet, Somers, Hastings, and Flinders on Westernport Bay.

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