GWR Main Line Rail Bridge No 21A
Hayes and Harlington to Southall
London UB2 5LF, United Kingdom
GWR Main Line Rail Bridge No 21A
is a minor waterways place
on the Grand Union Canal (Paddington Branch) between
Bull's Bridge Junction (Junction with Grand Union Paddington Branch. Opposite is a dry dock.) (2 furlongs
to the southwest) and
Little Venice (Junction of Grand Union Regent's Canal and Paddington Branch) (12 miles and 6 furlongs
to the east).
The nearest place in the direction of Bull's Bridge Junction is Site of Rubastic Dock (Infilled and built upon);
1 furlong
away.
The nearest place in the direction of Little Venice is Site of Entrance to Tickler's Dock (Infilled);
¾ furlongs
away.
Mooring here is unrated.
There is a bridge here which takes a railway over the canal.
| Bull's Bridge Junction | 2 furlongs | |
| Bull's Bridge No 21 | 2 furlongs | |
| Bull's Bridge Long Term Moorings | 1¼ furlongs | |
| Site of Rubastic Dock | 1 furlong | |
| GWR Main Line Rail Bridge No 21A | ||
| Site of Entrance to Tickler's Dock | ¾ furlongs | |
| Site of Southall Gas Works Main Dock | 3¼ furlongs | |
| Site of Southall Chemical Works Dock | 4½ furlongs | |
| Hayes Road Pipe Bridge | 5¼ furlongs | |
| Hayes Road Bridge Wharf | 6¾ furlongs | |
- Grand Union Canal Walk — associated with Grand Union Canal
- An illustrated walk along the Grand Union Canal from London to Birmingham
Mouseover for more information or show routes to facility
Nearest water point
In the direction of Bull's Bridge Junction
Bull's Bridge Visitor Moorings — 2½ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Bull's Bridge Visitor Moorings
Norwood Top Lock No 90 — 2 miles, 3 furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Norwood Top Lock No 90
Packet Boat Marina Service Wharf — 3 miles, 5¾ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Packet Boat Marina Service Wharf
Cowley Sanitary Station — 4 miles, 3¾ furlongs and 1 lock away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowley Sanitary Station
Denham Marina — 6 miles, ½ furlongs and 1 lock away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Denham Marina
Brentford Visitor Moorings — 5 miles, 3¼ furlongs and 10 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Brentford Visitor Moorings
Copper Mill Lock No 84 — 10 miles, 2½ furlongs and 5 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Copper Mill Lock No 84
Batchworth Junction — 12 miles, 7 furlongs and 8 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Batchworth Junction
Rickmansworth Basin Footbridge — 13 miles, ¾ furlongs and 9 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Batchworth Junction, then on the Grand Union Canal (Grand Junction Canal - Rickmansworth Branch) to Rickmansworth Basin Footbridge
Teddington Lock Weir Exit — 11 miles, 2¾ furlongs and 13 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Thames - Grand Union Canal Junction, then on the River Thames (tidal section) to Teddington Lock Weir Exit
In the direction of Paddington Basin and Wharves
The Black Horse PH (Greenford) — 4 miles, 4 furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Greenford Wharf — 4 miles, 4¼ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Railway Bridge No 11A — 7 miles, ½ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Mary Seacole Gardens — 10 miles, 1¾ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Mitre Bridge No 6 — 10 miles, 1¾ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Little Venice Services — 12 miles, 5 furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Westbourne Terrace Bridge No 3C — 12 miles, 5¼ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Diesel Boat MB Ash — 12 miles, 7 furlongs away
On this waterway in the direction of Paddington Basin and Wharves
St Pancras Lock No 4 — 15 miles, 5½ furlongs and 3 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to St Pancras Lock No 4
City Road Service Mooring — 17 miles and 4 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to City Road Service MooringNearest rubbish disposal
In the direction of Bull's Bridge Junction
Norwood Top Lock No 90 — 2 miles, 3 furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Norwood Top Lock No 90
Packet Boat Marina Service Wharf — 3 miles, 5¾ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Packet Boat Marina Service Wharf
Iver Lane Bridge No 188 — 4 miles, 4 furlongs and 1 lock away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Iver Lane Bridge No 188
Brentford Visitor Moorings — 5 miles, 3¼ furlongs and 10 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Brentford Visitor Moorings
Copper Mill Lane Rubbish Disposal — 10 miles, 2 furlongs and 5 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Copper Mill Lane Rubbish Disposal
Rickmansworth Household Waste and Recycling Centre — 12 miles, 6¼ furlongs and 8 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Rickmansworth Household Waste and Recycling Centre
Rickmansworth Rubbish Disposal — 13 miles, ¼ furlongs and 9 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Batchworth Junction, then on the Grand Union Canal (Grand Junction Canal - Rickmansworth Branch) to Rickmansworth Rubbish Disposal
Rickmansworth Basin — 13 miles, ½ furlongs and 9 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Batchworth Junction, then on the Grand Union Canal (Grand Junction Canal - Rickmansworth Branch) to Rickmansworth Basin
Teddington Lock Weir Exit — 11 miles, 2¾ furlongs and 13 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Thames - Grand Union Canal Junction, then on the River Thames (tidal section) to Teddington Lock Weir Exit
Molesey Lock — 15 miles, 8 furlongs and 14 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Thames - Grand Union Canal Junction, then on the River Thames (tidal section) to Teddington Lock Weir Exit, then on the River Thames (below Oxford) to Molesey Lock
In the direction of Paddington Basin and Wharves
Greenford Wharf — 4 miles, 4¼ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Steele Road Service Mooring — 8 miles, 5¼ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Kensal Green Bridge No 4 — 11 miles, ¾ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Little Venice Services — 12 miles, 5 furlongs away
On this waterway in the direction of Paddington Basin and Wharves
St Pancras Basin — 15 miles, 5 furlongs and 3 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to St Pancras Basin
St Pancras Lock No 4 — 15 miles, 5½ furlongs and 3 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to St Pancras Lock No 4
City Road Service Mooring — 17 miles and 4 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to City Road Service Mooring
Victoria Park Services — 19 miles, 4¼ furlongs and 7 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to Victoria Park ServicesNearest chemical toilet disposal
In the direction of Bull's Bridge Junction
Norwood Top Lock No 90 — 2 miles, 3 furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Norwood Top Lock No 90
Packet Boat Marina Service Wharf — 3 miles, 5¾ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Packet Boat Marina Service Wharf
Benbow Way Bridge No 189 — 4 miles, 1¼ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Benbow Way Bridge No 189
Cowley Sanitary Station — 4 miles, 3¾ furlongs and 1 lock away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowley Sanitary Station
Brentford Visitor Moorings — 5 miles, 3¼ furlongs and 10 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Brentford Visitor Moorings
Batchworth Junction — 12 miles, 7 furlongs and 8 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Batchworth Junction
Molesey Lock — 15 miles, 8 furlongs and 14 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Thames - Grand Union Canal Junction, then on the River Thames (tidal section) to Teddington Lock Weir Exit, then on the River Thames (below Oxford) to Molesey Lock
In the direction of Paddington Basin and Wharves
Northolt Boatyard — 3 miles, 3¾ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Greenford Wharf — 4 miles, 4¼ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Railway Bridge No 11A — 7 miles, ½ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Little Venice Services — 12 miles, 5 furlongs away
On this waterway in the direction of Paddington Basin and Wharves
St Pancras Basin — 15 miles, 5 furlongs and 3 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to St Pancras Basin
St Pancras Lock No 4 — 15 miles, 5½ furlongs and 3 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to St Pancras Lock No 4
Acton's Lock No 7 — 18 miles, 5¼ furlongs and 6 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to Acton's Lock No 7
Victoria Park Services — 19 miles, 4¼ furlongs and 7 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to Victoria Park ServicesNearest place to turn
In the direction of Bull's Bridge Junction
Bull's Bridge Junction — 2 furlongs away
On this waterway in the direction of Bull's Bridge Junction
North Hyde Bridge Winding Hole — 1 mile, 1¼ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to North Hyde Bridge Winding Hole
Winding Hole above Anchor Bridge — 1 mile, 2½ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Winding Hole above Anchor Bridge
Adelaide Dock — 1 mile, 4½ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Adelaide Dock
Cowley Peachey Junction — 3 miles, 4½ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowley Peachey Junction
Packet Boat Marina — 3 miles, 5¼ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowley Peachey Junction, then on the Grand Union Canal (Grand Junction Canal - Slough Arm) to Packet Boat Marina
Winding Hole between Three Bridges and Norwood Lock No 91 — 2 miles, 5¼ furlongs and 2 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Winding Hole between Three Bridges and Norwood Lock No 91
Meads Bridge Winding Hole — 5 miles, 1½ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowley Peachey Junction, then on the Grand Union Canal (Grand Junction Canal - Slough Arm) to Meads Bridge Winding Hole
Uxbridge Bridge Winding Hole — 5 miles, 7¾ furlongs and 1 lock away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Uxbridge Bridge Winding Hole
Denham Marina — 6 miles, ½ furlongs and 1 lock away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Denham Marina
St Mary's Road Bridge Winding Hole — 7 miles, 2¼ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowley Peachey Junction, then on the Grand Union Canal (Grand Junction Canal - Slough Arm) to St Mary's Road Bridge Winding Hole
Uxbridge Lock Winding Hole — 6 miles, 1¾ furlongs and 2 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Uxbridge Lock Winding Hole
Grand Junction Canal - Colne Junction (south) — 6 miles, 4½ furlongs and 2 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Grand Junction Canal - Colne Junction (south)
Slough Basin — 8 miles, 4½ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowley Peachey Junction, then on the Grand Union Canal (Grand Junction Canal - Slough Arm) to Slough Basin
In the direction of Paddington Basin and Wharves
Willowtree Marina — 1 mile, 5¾ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
The Black Horse PH (Greenford) — 4 miles, 4 furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Perivale Winding Hole — 6 miles, ½ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Piggery Bridge Winding Hole — 6 miles, 5¼ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Sainsbury's Moorings (Alperton) — 6 miles, 6½ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Harlesden Winding Hole — 8 miles, 5¾ furlongs away
On this waterway in the direction of Paddington Basin and WharvesNearest self-operated pump-out
In the direction of Bull's Bridge Junction
Packet Boat Marina — 3 miles, 5¼ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowley Peachey Junction, then on the Grand Union Canal (Grand Junction Canal - Slough Arm) to Packet Boat Marina
Packet Boat Marina Service Wharf — 3 miles, 5¾ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Packet Boat Marina Service Wharf
Brentford Visitor Moorings — 5 miles, 3¼ furlongs and 10 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Brentford Visitor Moorings
Molesey Lock — 15 miles, 8 furlongs and 14 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Thames - Grand Union Canal Junction, then on the River Thames (tidal section) to Teddington Lock Weir Exit, then on the River Thames (below Oxford) to Molesey Lock
In the direction of Paddington Basin and Wharves
Little Venice Services — 12 miles, 5 furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Acton's Lock No 7 — 18 miles, 5¼ furlongs and 6 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to Acton's Lock No 7Nearest boatyard pump-out
In the direction of Bull's Bridge Junction
Iver Boatyard — 6 miles, 1½ furlongs away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowley Peachey Junction, then on the Grand Union Canal (Grand Junction Canal - Slough Arm) to Iver Boatyard
Denham Marina — 6 miles, ½ furlongs and 1 lock away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Denham Marina
Harefield Marina — 8 miles, 3 furlongs and 3 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Harefield Marina
Hillingdon Narrowboats Association — 10 miles, 3 furlongs and 6 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Hillingdon Narrowboats Association
Bridgewater Basin — 15 miles, 1¼ furlongs and 11 locks away
Travel to Bull's Bridge Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Bridgewater Basin
In the direction of Paddington Basin and Wharves
Willowtree Marina — 1 mile, 5¾ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Northolt Boatyard — 3 miles, 3¾ furlongs away
On this waterway in the direction of Paddington Basin and Wharves
Diesel Boat MB Ash — 12 miles, 7 furlongs away
On this waterway in the direction of Paddington Basin and Wharves
St Pancras Basin — 15 miles, 5 furlongs and 3 locks away
Travel to Little Venice, then on the Grand Union Canal (Regent's Canal) to St Pancras BasinDirection of TV transmitter (From Wolfbane Cybernetic)
There is no page on Wikipedia called “GWR Main Line Rail Bridge No 21A”
Wikipedia pages that might relate to GWR Main Line Rail Bridge No 21A
[Chiltern Main Line]
built by the GWR. This included a triangular junction at Greenford, providing access to the Great Western Main Line via Castle Bar Park; a line via South
[Acton Main Line railway station]
provided by TfL Rail. Its three-letter station code is AML. It is in Travelcard Zone 3. Acton Main Line was opened by the Great Western Railway (GWR) on 1 February
[Reading–Taunton line]
completed the rival West of England line in 1860, which provided a more direct route from London to Exeter. The GWR's longer route via Bristol became nicknamed
[Varsity Line]
The Varsity Line (or the Oxford to Cambridge railway line) was the main railway route that once linked the English university cities of Oxford and Cambridge
[GWR 6000 Class]
history. They handled the principal GWR expresses on the main line from London to the West of England and on the GWR main line to Birmingham and Wolverhampton
[Great Western main line]
Reading to Bath via the Berks and Hants Line. Main line and local services are provided by Great Western Railway (GWR). The stations served by trains between
[21st-century modernisation of the Great Western main line]
Network Rail plans to spend £5 billion on modernising the Great Western main line, its South Wales branch and other associated lines. The modernisation
[Exeter to Plymouth railway of the LSWR]
Great Western Railway (GWR) and its 'associated companies' from London and Exeter to Plymouth in Devon, England. Whereas the GWR route from Exeter followed
[Gloucestershire Warwickshire Railway]
Western main line from Birmingham to Cheltenham. The GWSR has a long-term aim of extending a further 6 miles (9.7 km) from Broadway to the national rail network
[Acton–Northolt line]
capacity on the West Coast Main Line (WCML); but when that project was completed, express services from London to Birmingham on the GWR/GCR route were discontinued
Results of Google Search
21) A small part near Westbourne green had been built up as Pickering Place ... The only ancient road bridge wholly within Paddington was Westbourne bridge, .... The Great Western Railway Co. was authorized by its Act of incorporation in 1835 to .... Suburban trains thus no longer had to use the main line, although they  ...
Until the 1960s the British main line railways contained approximately 60,000 ... author's own experiences in a number of examples and mainly covers underbridges ... The first wrought-iron railway bridge was built near Glasgow in 1841 .... the Great Western Railway purchased two 36 ton cranes capacity with 40 ft jibs able.
The Class 180 is a British diesel-hydraulic multiple-unit train built by Alstom at Washwood ... However, following a string of problems, full main line testing did not begin until December 2000, ... Until 2018, to ensure reliability, Hull Trains' Class 180s were maintained alongside the Great Western Railway sub-fleet, at Old Oak ...
Jun 29, 2011 ... Patney & Chirton Photograph: Courtney Haydon Collection (66-15-21A) ... View looking towards Westbury with unit in the bay/loop platform used for Devizes trains. Opened ... The new GWR route west opened fully 11/6/1906 goods,2/7/ 1906 pass. The foot bridge looks odd as it has had its roof removed.
Honeybourne railway station serves the village of Honeybourne in Worcestershire, England. Opened in 1853, it is on the Cotswold Line and was formerly a busy junction with five platform faces, also serving trains on the Great Western Railway's Honeybourne Line ... The original station layout at Honeybourne was basic: a two platform station ...
My main regret now is that, like most non-railwaymen, I had almost no access .... LNER to the GWR, not least the flow on the LMS Birmingham – Bristol trunk route. .... route – although hampered by weak bridges and single-track sections, was ... at any rate those from Saltley (21A), which had no less than 65 on its allocation, ...
The permanent way is the elements of railway lines: generally the pairs of rails typically laid on .... The United Kingdom persisted with bullhead rail in main line use, with .... When Isambard Kingdom Brunel conceived the Great Western Railway ... still be seen today on many older under-bridges where no ballast was provided.