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Diamond Valley Railway Eltham
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Diamond Valley Railway Infrastructure

The main lines and sidings at Diamond Valley, Nillumbik, Meadmore Junction and Pine Creek consist of 14 lb/yd. flat-bottomed rail, laid to a gauge of 184 mm (7Ό”). The sleepers consist of 75 mm x 50 mm x 500 mm long durable timber, laid flat and spaced approximately 300 mm apart. The completed track is ballasted with 16 mm screenings. The minimum curve radius is 18.2 m (60’) and the heaviest grade is 1 in 40 (2½%).
Since 2001 the mainline is being progressively re-laid with 6 kg/m (12 lb/yd) brand new flat bottomed rail on 65 mm x 65 mm x 477 mm long or 50 mm x 50 mm x 477 mm long, recycled plastic sleepers spaced approximately 250 mm apart.

The current lengths of the various sections of the Railway system is given in the following table (April 2005):
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Meters
Feet
1
Diamond Valley to Diamond Valley via Outer Circle,Pinetree Loop & Inner Circle
1,950
6,400
2
Platform Roads and Crossovers At Diamond Valley
170
550
3
Triangle connections, Platform Road & Crossovers At Meadmore Junction
220
700
4
Platform Road and Passing Loop at Pine Creek
120
400
5
Passing Loop approaching Rocla Tunnel
Nil
0
6
Diamond Valley sidings, carriage shed And WGP Workshop
1,120
3,700
7
Nillumbik sidings, Rutledge Loop And carriage shed.
500
1,600
8
Meadmore Ballast sidings & Gnome’s Home siding
130
400
9
Under construction (10 points)
50
150
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Making a TOTAL length of mainline (1)
1,950
6,400
blank
A TOTAL length of alternate Main-line (2-5)
510
1,650
blank
A TOTAL length of sidings etc. (6-9)
1,800
5,900
blank ........................
Grand Total
4,260
13,950

The loading gauge is such that the absolute maximum allowable width of rolling stock is 680 mm (27”). The preferable maximum width is 560 mm (22”). The storage tracks in the carriage sheds are only 600 mm (24”) apart and the entrances to the locomotive shed are only 1190 mm (3’ 11”) high. The minimum spacing between parallel sidings is nominally 900 mm (3’). The minimum spacing between parallel main lines is nominally 1200 mm (4’). All station platforms are nominally 150 mm (6”) above rail level.



DIAMOND VALLEY RAILWAY - POINTS AND CROSSINGS March 2005

1. Diamond Valley Station & Mainline
45 m + 18 m double curved left hand (150' + 60') 2 off
45 m + 18 m double curved right hand (150' + 60') 4 off
30 m left hand (100') 4 off
30 m right hand (100')k 2 off
18 m left hand (60') 3 off
18 m right hand (60') 2 off
Diamond Crossing (60') 2 off 19
2. Meadmore Junction & Triangle
45 m + 18 m double curved left hand (150' + 60') 1 off
45 m + 18 m double curved right hand (150' + 60') 1 off
30 m left hand (100') 2 off
30 m right hand (100') 2 off
24 m left hand (80') 1 off
24 m right hand (80') 2 off
18 m left hand (60') 2 off
18 m right hand (60') 4 off
18 m 'Y' (60') 1 off
Single Slip (equivalent to 3 points) 1 off = 3
Diamond Crossing 3 off 22
3. Pine Creek
45 m + 18 m double curved right hand (150' + 60') 2 off
30 m right hand (100') 2 off 4
4. Diamond Valley Yards & WGP Workshop
18 m left hand )____(includes 1 x three way,) (60') 10 off
18 m right hand) (equivalent to 2 points) (60') 13 off
18 m 'Y' (60') 1 off
Double Slip (equivalent to 4 points) (00') 1 off = 4
Catch (equivalent to 1/3rd point) 1 off 28.33
5. Ballast Siding & Gnome's Home Siding
18 m left hand 60') 1 off
Catch (equivalent to 1/3rd point) 2 off 1.67
6. Nillumbik Siding & Rutledge Loop
18 m left hand )____(includes 1 x three way,) (60') 5 off
18 m right hand) (equivalent to 2 points) (60') 8 off
14 m left hand (45') 1 off
14 m right hand (tramway point) (45') 1 off 15
7. Spare in storage & under construction
No. 7 frog point (2 x R.H, 4 x L.H) (60') 6 off
No. 9 frog point (2 x R.H, 2 x L.H) (100') 4 off
Diamond Crossing 1 off 11
Total 101



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