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7
0
0
0
7500
2
9
9
4
7
22.78
IS
Top of Wall=5.90
Top of Wall=4.42
Top of Wall=5.65
Top of Wall=5.93
Top of Wall=15.97
Top of Fence=6.62
Top of Fence=6.65
Top of Fence=17.02
Top of Fence=13.85
Top of Fence=11.40
Top of Fence=13.38
Top of Fence=8.35
Seat
Seat
Seat
Seat
Gravel
Grass
Grass
Bracken
Sign
TP
G
G
Gas
LP
4.03
Litter Bin
13.90
Litter Bin
Sign
Gravel
Gravel
Mkr
Seat
4.71
IS
RS
RS
RS
Seat
Gravel
Gravel
Top of Wall=17.43
Top of Wall=11.61
Top of Wall=10.86
LP
LP
LP
SC
Mkr
Mkr
Mkr
FH
G
G
Top of Fence=13.44
Tarmac
Tarmac
Tarmac
Tarmac
Tarmac
B
B
Sign
7.24
Litter Bin
13.47
Litter Bin
13.39
Litter Bin
Beach
Concrete
22.75
IS
22.78
IS
22.75
IS
22.78
IS
4.71
IS
22.75
IS
GR
EY
PO
INT
BRIDGE ACROSS RAVINE; 4.0m (w) x 68m (l)
STEEL PEDESTRIAN / CYCLE BRIDGE. REFER
TO DETAIL BOARD 1 FOR DETAILS OF
SIMILAR BRIDGE CONSTRUCTION
NO CONSTRUCTION PROPOSED ALONG THIS
SECTION. EXISTING PATH MAINTAINED &
INCORPORATED INTO GREENWAY ROUTE
TREATED TIMBER BOARDWALK, 4.0m
WIDTH x 290m LENGTH
GREY POINT FORT
DETAIL BOARD 2: BRIDGE ACROSS RAVINE & PEDESTRIAN / CYCLE BOARDWALK AT GREY POINT FORT
To the north of Grey Point Fort, the proposals seek to establish a 4.0m (w) x 290m (l) raised timber boardwalk. A raised boardwalk is proposed so as to minimise disturbance
of the tree root systems. An example of this style of boardwalk from Limburg in Belgium is illustrated below (right). The boardwalk can be supported on a series of slender
piles which requires very little excavation; the boardwalk route and foundations can therefore be designed to take the path of least resistance through the trees.
As part of the proposals at Grey Point Fort, a 4.0m wide, 68m long steel pedestrian / cycle bridge is proposed to span across the ravine. These proposals combine to provide
a high quality route between the paths on both sides of Grey Point.
KINNEGAR TO DONAGHADEE GREENWAY
NO CONSTRUCTION PROPOSED ALONG
THIS SECTION. BOARDWALK LINKS TO PATH
AT HELEN'S BAY VIA EXISTING FOOTWAY
MATERIALS
The boardwalk can be constructed from pressure-treated timber or steel. A combination of the two materials may provide the optimal solution; steel supports with timber
cladding or CorTen steel can be used to provide a structure that is sympathetic to the setting, with minimal visual impact.
The bridge across the ravine is steel, similar to that proposed at Royal Belfast Golf Club (refer to Detail Board 1).
Example of similar boardwalk at Pijnven Forest (Limburg, Belgium)
N
KEY
CONSTRUCTION BOUNDARY
3m ASPHALT PATH (DARK GREY)
EXISTING PATH TO REMAIN
PROPOSED FENCELINE
PROPOSED BOARDWALK
PROPOSED STEEL BRIDGE
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