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