Distance:
4 km
Allowance: 12 minutes. Gradient: Average 1 in 83, with steeper climbs in Coed Helen cutting and from Bontnewydd to Dinas Speed limits: 20mph
Lon Parc footbridge to Hendy crossing,
15mph
Hendy to Bontnewydd,
20mph Bontnewydd to Dinas Farm crossing. Slowing to 15mph then 10mph on station approaches at both ends. Approximate timings are included for guidance only Lon Eifion, a tarmac cycle track/footpath shares the old standard gauge trackbed with the railway all the way to Dinas |
This is the most detailed section of the route to learn with many landmarks close together
Caernarfon station | OB 20.00 0
km First kilometric marker is under the footbridge - markers count upwards from 20km |
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The line initially runs on a gently curving shelf partly secluded by trees above the Seiont estuary, finally crossing the river itself at Pont Seiont: | ||
0.29km
Lon Parc footbridge OB 20.29 Almost within sight of the station (Travis Perkins warehouse on right is a useful landmark) |
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0.77km St Helens Road Bridge OB 20.77 Concrete overbridge, replaces former road bridge which still passes under the line just to the north (located by the rusty railings). Note distinctive interior patterning seen above |
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0.80km
St Helens Road foot
crossing -LC 20.80 The crossing is visible beyond the bridge in the view above and also looking back from Pont Seiont in the view below |
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0.87km.Pont
Seiont UB 20.87(Looking north) Carries the line high over the river Seiont at the head of the estuary. Low brick parapet, overhanging trees. Foot crossing and St Helens Road bridge just visible in distance. |
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The line now climbs steadily through Coed Helen cutting to Hendy crossing | ||
0.95km. Coed
Helen Road Bridge OB 20.95 At the entry to the Coed Helen cutting Distinctive central steel prop |
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Distant signal for Hendy Crossing at end of cutting Coed Helen Cutting 21km marker is in cutting (Left side) |
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1.43km
Hendy
Crossing LC 21.43
5 mins approx Compulsory stop at crossing - poor visibility. Llanfaglan Road runs beside the line on left |
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From Hendy Crossing, the line runs though fields and hedgerows to Bontnewydd (with a short cutting at Fron Goch) | ||
1.64km
Pant Farm and
Crossing LC 21.64 Right side Located just north of Llanfaglan Road Bridge |
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1.71km
Llanfaglan
Road Bridge OB 21.71 Bridge spans a short cutting. Pant Farm Crossing is before the bridge, just ahead of the loco in this view |
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1.87km Fron
Goch
Crossing LC 21.87 (Right side looking back) Caution: crossing often used by pedestrians visiting nursery |
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Fron
Goch nursery Right side Polytunnels on this side, glasshouses on the other 2.00km 22km marker just before Bronydd Crossing |
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2.09km Bronydd
Crossing LC 22.09 Right side Leads to a secluded cottage, only the chimneys are visible from the line |
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2.51km Cefn
Werthyd Crossing LC 22.51 Left side |
Right side | |
2.65km
BONTNEWYDD HALT (right side looking back) 8mins approx |
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2.70km
Bontnewydd Foot Crossing
LC 22.70 Right side looking back The Halt is visible further away |
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2.82km
Gwyrfai Viaduct
UB22.82 Crosses both river and road just south of Bontnewydd Halt and Crossing. |
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After
Bontnewydd and
the
viaduct, the line runs along a heavily
wooded embankment to Bronant
Crossing, climbing
steadily all the way. 3.00km 23km marker on embankment |
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3.12km Plas
y
Bont Bridge UB 23.12 Lies in the trees on the embankment (Same type of railings as Gwyrfai Viaduct but a shorter span) |
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3.36km
Bronant
Crossing LC 23.36 Right side looking back This inconspicuous crossing lies at the transition from embankment to cutting |
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The line now enters Dinas Cutting from which it emerges at Dinas Farm Crossing, climbing steadily all the way: | ||
Dinas Cutting | ||
3.56km Plas
Dinas Bridge OB 23.56 (Right side looking back) Deep in the cutting |
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3.87km Dinas
Farm Crossing LC 23.87 Note the stop board protecting the shunt limit - with the proceed indicators illuminated |
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Beyond Dinas crossing the line passes the carriage sheds, levelling out as it enters Dinas Station | ||
4.00km 24km marker is by the carriage sheds, near the North Yard lever frame | ||
DINAS
STATION
12mins allowance Train operated trailable points, right hand running |
Caernarfon
to Dinas: Summary of key features:- 6 Overbridges - Caernarfon Station, Lon Parc, St Helens Road, Coed Helen, Llanfaglan Road, Plas Dinas 4 Underbridges - Old St Helens Road, Pont Seiont, Pont Gwyrfai, Pont Plas y Bont 1 Road crossing - Hendy 3 Cuttings - Coed Helen, Fron Goch, Dinas 1 Embankment - Pont Gwyrfai to Bronant Crossing |