Question: How many meters wide is the widest part of the Wigan scheduled monument area that is a moat in Greater Manchester ?

text: Scheduled monuments in Greater Manchester
Wigan

There are 37 scheduled monuments in Greater Manchester, a metropolitan county in North West England. In the United Kingdom, a scheduled monument is a nationally important archaeological site or historic building that has been given protection against unauthorised change by being placed on a list (or schedule) by the Secretary of State for Culture, Media and Sport; English Heritage takes the leading role in identifying such sites. Scheduled monuments are defined in the Ancient Monuments and Archaeological Areas Act 1979 and the National Heritage Act 1983. They are also referred to as scheduled ancient monuments. There are about 18,300 scheduled monument entries on the list, which is maintained by English Heritage; more than one site can be included in a single entry. While a scheduled monument can also be recognised as a listed building, English Heritage considers listed building status as a better way of protecting buildings than scheduled monument status. If a monument is considered by English Heritage to no longer merit scheduling it can be descheduled. The metropolitan county of Greater Manchester is composed of 10 metropolitan boroughs: Bolton, Bury, Manchester, Oldham, Rochdale, Salford, Stockport, Tameside, Trafford and Wigan. Rochdale has no scheduled monuments; those in the other boroughs are listed separately. They range from prehistoric structures - the oldest of which date from the Bronze Age - to more modern structures such as the Astley Green Colliery, from 1908. Greater Manchester has seven prehistoric monuments (i.e. Bronze or Iron Age), found in Bury, Oldham, Salford, Stockport, and Tameside.
Name Remains Date Location Description
Astley Green Colliery Mining site k 1908 Astley 53°29′43″N 2°26′41″W / 53.495311°N 2.444649°W / 53.495311 ; -2.444649 ( Astley Green Colliery ) The Pilkington Colliery Company began construction of the colliery in 1908 , and the site opened for coal production in 1912 . The colliery was closed in 1970 and is now Astley Green Colliery Museum . Most of the buildings associated with the colliery have been destroyed as has one of the mine shafts
Cross base Cross base a Medieval Junction of Green Lane , Standish Wood Lane and Beech Walk , Standish 53°34′49″N 2°39′43″W / 53.580335°N 2.662006°W / 53.580335 ; -2.662006 ( Cross base ) The stone cross was one of four known crosses that marked the medieval route from Wigan to Chorley . The cross base is no longer in its original place , having been moved when the road was widened
Cross base Cross base b Medieval Green Lane , Standish 53°34′52″N 2°39′38″W / 53.581062°N 2.660506°W / 53.581062 ; -2.660506 ( Cross base ) The stone cross was one of four known crosses that marked the medieval route from Wigan to Chorley . It is protected as a Grade II listed building
Cross base Cross base c Medieval Standish Wood Lane , Standish 53°34′25″N 2°39′38″W / 53.573511°N 2.66054°W / 53.573511 ; -2.66054 ( Cross base ) The stone cross was one of four known crosses that marked the medieval route from Wigan to Chorley
Gidlow Hall Standing building h 1574 Aspull 53°33′31″N 2°33′59″W / 53.558532°N 2.566397°W / 53.558532 ; -2.566397 ( Gidlow Hall ) The present structure dates from around 1574 , although it is thought to have replaced an earlier building . In 1840 , the hall was rebuilt in the Gothic Revival style . Gidlow Hall is protected as a Grade II listed building
The Great Haigh Sough Portal Brick drainage i 1653 Haigh 53°33′33″N 2°37′03″W / 53.559088°N 2.617436°W / 53.559088 ; -2.617436 ( Haigh Sough drainage ) Between 1653 and 1670 , the Haigh Sough drainage system was under construction ; its purpose was to drain the local collieries . The system extends for 936 m ( 3,071 ft ) and has only one entrance . It was in use until 1929 and the entrance is now covered by a steel grille to prevent access
Mab 's Cross Stub of stone cross f 13th century Standishgate , Wigan 53°33′04″N 2°37′34″W / 53.551132°N 2.626076°W / 53.551132 ; -2.626076 ( Mab 's Cross ) Mab 's Cross was one of four known crosses that marked the medieval route from Wigan to Chorley . In 1922 , the cross was moved from its original position when the road was widened and is protected as a Grade II* listed building
Standish Market Cross Stone cross d Medieval Market place , Standish 53°35′12″N 2°39′38″W / 53.586545°N 2.660592°W / 53.586545 ; -2.660592 ( Standish Market Cross ) The base of the stone cross is medieval , but the cross shaft is modern . It is protected as a Grade II listed building
Moat of Moat House Dried-up moat j 18th century Haigh 53°34′36″N 2°36′13″W / 53.576598°N 2.603644°W / 53.576598 ; -2.603644 ( Moat House ) All that remains is a dried-up square moat surrounding the 18th-century Moat House
Morleys Hall Standing building e Medieval Astley 53°29′20″N 2°28′04″W / 53.489019°N 2.467796°W / 53.489019 ; -2.467796 ( Morleys Hall ) The current hall was built in the 19th century , however some 16th and 17th century timber framing is incorporated into the structure . In 1641 , it was the home of Ambrose Barlow . The site is surrounded by a 12-15 m ( 39-49 ft ) wide and 3 m ( 9.8 ft ) deep waterlogged medieval moat , and Morleys Hall is a Grade II* listed building
New Hall moated site Moat g 16th century Astley , Tyldesley 53°30′21″N 2°27′12″W / 53.505706°N 2.453352°W / 53.505706 ; -2.453352 ( New Hall ) The moat surrounds the site of the original medieval building , which was replaced a by a post-medieval farmhouse . The moat is filled with water , however the ruined farmhouse is not part of the scheduled monument
Winstanley Hall Standing building h 1560s Winstanley 53°31′21″N 2°41′14″W / 53.522389°N 2.68735°W / 53.522389 ; -2.68735 ( Winstanley Hall ) Winstanley hall was built in the 1560s for the Winstanley family of Wigan , who were Lords of the Manor . It is linked with the neighbouring halls of Bispham Hall ( built in 1573 ) , Birchley Hall ( 1594 ) , and Hacking Hall ( 1607 ) . Winstanley Hall was extended in the 17th and 18th centuries , and further work was done in the 19th century including work by architect Lewis Wyatt in the Jacobean style . The building is currently in a decayed state , and lies unoccupied . It is also a Grade II* listed building