Editing Midland Main Line (section)

==== Tunnels, viaducts and major bridges ====
Major civil engineering structures on the Midland Main Line include the following.<ref name=":1">{{Cite book|title=Railway Track Diagrams Book 4 Midlands & North West|last=Bridge|first=Mike|publisher=Trackmaps|year=2013|isbn=978-0-9549866-7-4|location=Bradford on Avon|pages=1–5}}</ref><ref name=":0">{{Cite book|title=Railway Track Diagrams Book 2: Eastern|last=Brailsford|first=Martyn|publisher=Trackmaps|year=2016|isbn=978-0-9549866-8-1|location=Frome|pages=1, 27}}</ref>
{| class="wikitable"
|+Tunnels, viaducts and major bridges on the Midland Main Line
!Railway Structure
!Length
!Distance from [[St Pancras railway station|London St Pancras International]]
![[Engineer's Line Reference|ELR]]
!Location
|-
|East Bank Tunnel
|{{convert|80|yards|m}}
|158 [[mile]]s 05 [[Chain (unit)|chains]] – 158 miles 01 chains
| rowspan="5" |TJC1
|South of [[Sheffield station]]
|-
|Bradway Tunnel
|{{convert|1|mile|266|yards|m}}
|153 miles 61 chains – 152 miles 49 chains
|North of Dronfield station
|- 
|Unstone Viaduct (River Drone)
|{{convert|6|chain|m}}
|149 miles 75 chains – 149 miles 69 chains
| rowspan="3" |Between Dronfield and [[Chesterfield railway station|Chesterfield stations]]
|- 
|Former [[Broomhouse Tunnel]]
|
|
|- 
|Whitting Moor Road Viaduct
|
|148 miles 45 chains
|-
|Alfreton Tunnel
|{{convert|840|yards|m}}
|135 miles 50 chains – 135 miles 11 chains (via Toton)
| rowspan="3" |TCC
| rowspan="2" |[[Erewash Valley line|Erewash Valley Line]] between Alfreton and [[Langley Mill railway station|Langley Mill stations]]
|-
|[[Cromford Canal]]
| 
|132 miles 67 chains (via Toton)
|-
|[[Erewash Canal]]
|
|128 miles 09 chains (via Toton)
|Erewash Valley Line south of Langley Mill station
|-
|[[Clay Cross Tunnel]]
|{{convert|1|mile|24|yards|m}}
|147 miles 22 chains – 146 miles 21 chains
| rowspan="10" |SPC8
| rowspan="5" |Between Chesterfield and [[Belper railway station|Belper stations]]
|-
|River Amber
|
|140 miles 40 chains
|-
|Wingfield Tunnel
|{{convert|261|yards|m}}
|139 miles 59 chains – 139 miles 47 chains
|- 
|[[Toadmoor Tunnel]]
|{{convert|129|yards|m}}
|138 miles 12 chains – 138 miles 07 chains
|-
|[[River Derwent, Derbyshire|River Derwent]] / Broadholme Viaducts
|{{convert|6|chain|m}},<br/>{{convert|7|chain|m}}
|136 miles 47 chains – 136 miles 41 chains, 136 miles 18 chains – 136  miles 11 chains
|-
|Swainsley Viaduct (River Derwent)
|{{convert|4|chain|m}}
|134 miles 61 chains – 134 miles 57 chains
| rowspan="2" |Between Belper and [[Duffield railway station|Duffield stations]]
|-
|[[Milford Tunnel]]
|{{convert|855|yards|m}}
|134 miles 25 chains – 133 miles 67 chains
|-
|Burley Viaduct (River Derwent)
|{{convert|4|chain|m}}
|131 miles 58 chains – 131 miles 54 chains
| rowspan="3" |Between Duffield and [[Derby railway station|Derby stations]]
|-
|Nottingham Road Viaduct
|{{convert|3|chain|m}}
|128 miles 43 chains – 128 miles 40 chains
|-
|River Derwent Viaduct
|{{convert|3|chain|m}}
|128 miles 06 chains – 128 miles 03 chains
|-
|Trent Viaduct
|{{convert|11|chain|m}}
|119 miles 08 chains – 118 miles 77 chains
| rowspan="2" |SPC6
| rowspan="2" |Between [[Long Eaton railway station|Long Eaton]] and [[East Midlands Parkway railway station|East Midlands Parkway]] station
|-
|Redhill Tunnels
|{{convert|154|yards|m}},<br/>{{convert|170|yards|m}}
|118 miles 74 chains – 118 miles 66 chains
|-
|River Soar
|
|112 miles 74 chains
| rowspan="5" |SPC5
| rowspan="2" |Between East Midlands Parkway and Loughborough stations
|-
|Flood openings
|{{convert|2|chain|m}}
|112 miles 60 chains – 112 miles 58 chains
|-
|Hermitage Brook Flood Openings
|{{convert|3|chain|m}}
|111 miles 41 chains – 111 miles 38 chains
|South of [[Loughborough railway station|Loughborough station]]
|-
|[[River Soar]]
|
|109 miles 55 chains
|North of [[Barrow-upon-Soar railway station|Barrow-upon-Soar station]]
|-
|[[River Wreake|River Wreak]]
|
|104 miles 60 chains
|South of [[Sileby railway station|Sileby station]]
|-
|Knighton Tunnel
|{{convert|104|yards|m}}
|98 miles 07 chains – 98 miles 02 chains
| rowspan="2" |SPC4
| rowspan="2" |South of [[Leicester railway station|Leicester station]]
|-
|Knighton Viaduct
|{{convert|4|chain|m}}
|97 miles 34 chains – 97 miles 30 chains
|-
|Wellingborough Viaducts (River Ise)
|{{convert|6|chain|m}}
|64 miles 57 chains – 64 miles 51 chains
| rowspan="2" |SPC2
| rowspan="2" |South of [[Wellingborough railway station|Wellingborough station]]
|-
|Irchester Viaducts ([[River Nene]])
|{{convert|7|chain|m}}
|63 miles 67 chains – 63 miles 60 chains
|-
|Sharnbrook Tunnel (Slow line only)
|{{convert|1|mile|100|yards|m}}
|60 miles 04 chains – 59 miles 00 chains
|WYM
| rowspan="7" |Between Wellingborough and [[Bedford railway station|Bedford stations]]
|-
|Sharnbrook Viaducts
|{{convert|9|chain|m}}
|56 miles 25 chains – 56 miles 16 chains
| rowspan="6" |SPC2
|-
|Radwell Viaducts
|{{convert|143|yards|m}}
|55 miles 03 chains – 54 miles 76½ chains
|-
|Milton Ernest Viaducts
|{{convert|8|chain|m}}
|54 miles 25 chains – 54 miles 17 chains
|-
|Oakley Viaducts
|{{convert|6|chain|m}}
|53 miles 35 chains – 53 miles 29 chains
|-
|Clapham Viaducts (River Ouse)
|{{convert|6|chain|m}}
|52 miles 04 chains – 51 miles 78 chains
|-
|Bromham Viaducts (River Ouse)
|{{convert|7|chain|m}}
|50 miles 79 chains – 50 miles 72 chains
|-
|[[River Great Ouse]] Viaduct
|{{convert|5|chain|m}}
|49 miles 38 chains – 49 miles 33 chains
| rowspan="11" |SPC1
| rowspan="2" |Between Bedford and [[Flitwick railway station|Flitwick stations]]
|-
|[[Ampthill Tunnel]]s
|{{convert|715|yards|m}}
|42 miles 52 chains – 42 miles 19 chains
|-
|Hyde/Chiltern Green Viaduct ([[River Lea]])
|{{convert|6|chain|m}}
|26 miles 72 chains – 26 miles 66 chains
|South of [[Luton Airport Parkway railway station|Luton Airport Parkway station]]
|-
|Elstree Tunnels
|{{convert|1058|yards|m}}
|12 miles 06 chains – 11 miles 38 chains
|South of [[Elstree & Borehamwood railway station|Elstree & Borehamwood station]]
|-
|Stoneyfield/Deans Brook Viaduct
|{{convert|4|chain|m}}
|10 miles 36 chains – 10 miles 32 chains
|Between Elstree & Borehamwood and Hendon stations
|-
|Welsh Harp/Brent Viaduct ([[River Brent]])
|{{convert|10|chain|m}}
|6 miles 31 chains – 6 miles 21 chains
|South of [[Hendon railway station|Hendon station]]
|-
|[[Belsize Tunnel|Belsize Slow Tunnel]]
|{{convert|1|mile|107|yards|m}}
|3 miles 34 chains – 2 miles 29 chains
| rowspan="3" |Between [[West Hampstead Thameslink railway station|West Hampstead Thameslink]] and Kentish Town stations
|-
|Belsize Fast Tunnel
|{{convert|1|mile|11|yards|m}}
|3 miles 32 chains – 2 miles 33 chains
|-
|Lismore Circus Tunnel<ref name="htln1">{{cite web| title = London North Eastern Route Sectional Appendix; LOR LN3201 Seq001 to 030| url=http://archive.nr.co.uk/browse%20documents/sectional%20appendix/sectional%20appendix%20full%20pdf%20copies/london%20north%20eastern%20sectional%20appendix.pdf| publisher = Network Rail| access-date =13 January 2018}}</ref>
|{{convert|110|yards|m}}
|2 miles 22 chains – 2 miles 17 chains
|-
|Hampstead Tunnel
|{{convert|44|yards|m}}
|1 mile 76 chains – 1 mile 74 chains
|
|-
|Camden Road Tunnels
|{{convert|308|yards|m}}
|1 miles 13 chains – 0 miles 79 chains
|South of [[Kentish Town station]]
|-
|[[Canal Tunnels]] 
|{{convert|820|yards|m}}
|0 miles 0 chains – 0 miles 0 chains
|
|Connecting to [[ECML]] at Belle Island Junction
|}