Archaeology Wales
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Archaeology Wales CAERGEILIOG, ANGLESEY Desk Based Assessment and Site Visit By Irene Garcia Rovira PhD, MCIfA and Siobhan Sinnot Report No. 1758 Archaeology Wales Limited The Reading Room, Town Hall, Llanidloes, SY18 6BN Tel: +44 (0) 1686 440371 Email: [email protected] Web: arch-wales.co.uk Archaeology Wales Caergeiliog, Anglesey Desk Based Assessment and Site Visit Prepared For: Sirius Planning Edited by: Phil PPoucheroucher AAuthoriseduthorisedtho bby: Phil Poucher Signed: DRAFTDR TSigned: Position: Project Manager Position: Project Manager Date: 30.1.19 Date: 30.1.19 By Irene Garcia Rovira PhD, MCIfA DQG6LREKDQ6LQQRW Report No. 1758 $SULO 2019 Archaeology Wales Limited The Reading Room, Town Hall, Llanidloes, SY18 6BN Tel: +44 (0) 1686 440371 Email: [email protected] Web: arch-wales.co.uk Non – Technical Summary In December 2018, Archaeology Wales was commissioned by Sirius Planning Ltd to carry out an Archaeological Desk Based Assessment and Site Visit to determine the archaeological potential seven areas proposed for development. Development plans envisage the construction and operation of a 49.9MW solar farm and power storage units over seven parcels of land located southwest of the village of Bryngwran. No Conservation Areas or Historic Parks & Gardens will be directly or indirectly affected by the proposed development. Area 1 will not foresee any direct or indirect impacts over known designated and undesignated assets. Aerial photographs document possible medieval ridge and furrow (CAG-001) within the bounds of Area 1, as well as a square outcrop of unknown date (CAG-002). Area 3 is located 0.14m south from Castellor Hut Group (AN088). Although the scheduling area does not fall within Area 3, it is possible that remains associated with the site are encountered during groundworks. The magnitude of the impact is considered moderate, as it is the magnitude of the visual impact that the proposed development would have for SAM AN088. The walk over survey evidenced that the proposed development would have a direct visual impact over LB 20428. Finally, two new sites were identified during the site visit: CAG-003/004. These features are defined as raised circular mounds. While the nature of these features is unknown, they may be tentatively interpreted as prehistoric in date. While no direct views were observed during the site visit, a ZTV model demonstrates possible views from Area 4 to SAMM ANAN088.088088.. FurthermoreFurthermore,, the proposed development may have a visualvivis impact on LB 19488 and 5278. TThehe magnitudemagnitude ofof the impact is considered minorminor.. Another circulccirculara earthwork was located during the site visit in Area 4 (CAG-005).(CAG-0005).05). Similarly to CAGCAG-003/004,-0003/004,03/004, CAG-005CAG-005 might represent remains prehistoricc in date. Two HERs are present withinwithin thethe dedevelopmentdevevelopmentlopment aarea: PRN28943-4. The latter would be directlyiirectlyrectly impacted by the propproposedosed development. A furtherfurther HER is located at the boundary of AreaDRAFT 4: St Ulched’s Church (PRN 2525). While the latter is situated outside the bounds of the proposed development area, the possibility of encountering associated remains during groundworks cannot altogether be discarded. No new sites or known sites were identified within Area 5. Proposed developments in Area 5 will not have a direct or indirect impact on any Listed Building, Ancient Scheduled Monument or known undesignated heritage asset. Proposed development in Area 6 will not have any direct or indirect impact on both designated and undesignated heritage assets. Two raised mounds (CAG-006) were documented during the site visit. Although of unknown function, a prehistoric date for these features cannot be discarded as Bronze Age remains were recovered during development north of Area 6. Furthermore, a number of enclosed structures are depicted in the Tithe map within the proposed development area, east of Llyn Dinam (CAG-010). Development plans in Area 8 and 9 will not have any direct of indirect impact on both designated and undesignated heritage assets. Area 8 records the remains of an enclosed area associated with the adjacent Towyn (CAG-009). Three dew holes (CAG-007) were documented during the site visit. Although of unknown function, a prehistoric date for these features cannot be discarded considering the concentration of prehistoric remains found to the immediate south of the development area. Two raised mounds (CAG-013) were documented during the site visit in Area 9. Furthermore, this area documents a number of post-medieval/modern features, including the remains of a possible surface quarry (CAG-012), a pond constructed in the 1970s (CAG-008), and two post-medieval ditched boundaries (CAG-013/014). 1 | Page Crynodeb Annhechnolegol Ym mis Ragfyr 2018, comisiynwyd Archeoleg Cymru gan Sirius Planning Ltd. i gynnal Asesiad Desg Archeolegol ac Ymweliad Safle i bennu’r potensial archeolegol ar gyfer saith ardal y cynigir eu datblygu. Mae’r cynlluniau datblygu yn rhagweld adeiladu a gweithredu fferm solar 49.9MW ac unedau storio trydan dros saith parsel o dir wedi’u lleoli i’r De-orllewin o bentref Bryngwran. Ni fydd unrhyw Ardaloedd Cadwraeth na Pharciau a Gerddi Hanesyddol yn cael eu heffeithio’n uniongyrchol neu’n anuniongyrchol gan y datblygiad arfaethedig.Ni fydd Ardal 1 yn rhagweld unrhyw effeithiau uniongyrchol nac anuniongyrchol dros asedau dynodedig ac asedau heb ei dynodi. Mae awyrluniau yn dogfennu cefnen a rhych canoloesol posibl (CAG-001) o fewn ffiniau Ardal 1, gan gynnwys hefyd brig sgwâr o ddyddiad anhysbys (CAG-002). Mae Ardal 3 wedi’i lleoli 0.14m i’r de o Grǒp Castellor Hut (AN088). Er nad yw’r ardal restredig yn dod o fewn Ardal 3, mae’n bosibl y deuir ar draws sy’n gysylltiedig gyda’r safle yn ystod y gwaith tir. Ystyrir maint yr effaith i fod yn gymedrol, oherwydd maint yr effaith y byddai’r effaith gweledol ar SAM AN008 o’r datblygiad arfaethedig. Roedd yr arolwg o’r ymweliad yn dangos byddai’r datblygiad arfaethedig yn cael effaith weledol uniongyrchol dros LB 20428. Yn olaf, nodwyd dau safle newydd yn ystod yr ymweliad i’r safle: CAG-003/004. Mae’r nodweddion hyn wedi’u diffinio fel tommeni wedi’u codi. Er nad yw natur y nodweddion hyn yn hysbys, efallai eu bod yn cael eu dehongli’n betrus fel rhai cynhanesyddol. Er na welwyd unrhyw olygfeydd uniongyrchol yn ystod yr ymweliad â’r safle, mae model ZTV yn dangos bod golygfeydd posiblsibl o Ardal 4 i SAM AN008. At hynny, gallai’rgallai r datblygiad arfaetarfaetharfaethedigh gael effaith weledol ar LB 194888888 a 5278. Ystyrir maint yr eeffaithffaith i fodfod yn ffach.ach. DarganfuwydDarganfuwyd gwrthglawddgwr cylchol arall yn ystod yr ymweliadmmweliadweliad â’r saflesafle yn Ardal 4 (CAG-005).(CA(CAG-0005).05). Yn ddebygdebyebygg i CAGCAG-003/004,-000303/004 gallai CAG 005 gynrychioli olion cynhanesyddolcynhanesyddol mewn dyddiad. Mae dau GofnodGofnod AmAmgylcgylcheddgylchedd Hanesyddol yn bresennol o fewn yr ardal datblygu:datblygu: PRN28943PRN28943-4.PRN28943-4. Byddai’rddai’r datblydatblygiadgiadgiad arfaeararfaethedigfaethedi yn cael effaith uniongyrchol ar yrDRAFT olaf. Mae Cofnod Amgylchedd Hanesyddol arall wedi’i lleoli ar ffin Ardal 4: Eglwys Sant Ulched (PRN 2525). Er bod yr olaf wedi’i lleoli y tu allan i ffiniau’r ardal datblygu arfaethedig, ni ellir osgoi yn gyfan gwbl y posibilrwydd o ddarganfod olion cysylltiedig yn ystod y gwaith tir. Ni nodwyd unrhyw safleoedd newydd neu safleoedd hysbys yn Ardal 5. Ni fydd datblygiad arfaethedig yn Ardal 5 yn cael effaith uniongyrchol nac anuniongyrchol ar unrhyw Adeilad Rhestredig, Heneb Restredig neu unrhyw ased treftadaeth hysbys sydd heb ei ddynodi.Ni fydd y datblygiad arfaethedig o fewn Ardal 6 yn cael unrhyw effaith uniongyrchol neu anuniongyrchol ar asedau treftadaeth ddynodedig neu sydd heb eu dynodi. Cofnodwyd dau domen wedi’i chodi (CAG-006) yn ystod yr ymweliad â’r safle. Er nad yw swyddogaeth rhain yn hysbys, ni ellir diystyri roi dyddiad cynhanesyddol iddynt gan ddarganfuwyd olion o’r Oes Efydd yn ystod datblygiad i’r gogledd o Ardal 6. At hynny, mae nifer o strwythurau caeedig wedi’i darlunio yn y map Degwm o fewn yr ardal datblygu arfaethedig, y rhain i’r dwyrain o Lyn Dinam (CAG-010). Ni fydd y cynlluniau datblygu yn ardal 8 a 9 yn cael unrhyw effaith anuniongyrchol neu uniongyrchol ar asedau treftadaeth ddynodedig na rhai sydd heb eu dynodi. Mae ardal 8 yn cofnodi olion man caeedig sy'n gysylltiedig â'r Tywyn cyfagos (CAG-009). Cofnodwyd tri gwlithbwll (CAG-007) yn ystod yr ymweliad safle. Er nad yw'r swyddogaeth yn hysbys, ni ellir gwaredu dyddiad cynhanesyddol ar gyfer y nodweddion hyn gan ystyried crynodiad yr olion cynhanesyddol a ganfuwyd i'r de o'r ardal ddatblygu. Cofnodwyd dau domen wedi’i chodi (CAG-014) yn ystod yr ymweliad safle yn ardal 9. At hynny, mae'r ardal hon yn dogfennu nifer o nodweddion ôl-ganoloesol/modern, gan gynnwys olion wyneb chwarel bosibl (CAG-013), pwll a adeiladwyd yn y 1970au (CAG-008), a dwy ffos terfyn ol-ganoloesol (CAG- 014/015). 2 | Page Contents Non – Technical Summary ...................................................................................................................... 1 Crynodeb Annhechnolegol...................................................................................................................... 2 Introduction ............................................................................................................................................ 7 1 Introduction ...............................................................................................................................