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    NPRN91426
    Map ReferenceSH77NW
    Grid ReferenceSH7000076073
    Unitary (Local) AuthorityConwy
    Old CountyCaernarfonshire
    CommunityPenmaenmawr
    Type Of SiteROAD
    PeriodModern, 20th Century
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    Description
    Concrete-lined tunnel opened in 1993 to carry the westbound carriageway of the A55 North Wales Expressway (nprn 403728). Eastbound traffic uses the Penyclip alignment of 1936 (nprn 91423).
    B.A.Malaws, RCAHMW, 27 September 1997.