Sir John Macneill of Mount Pleasant Dundalk Sir

Sir John Macneill of Mount Pleasant Dundalk

Sir John Macneill Architect and Engineer

Sir John Macneill of Mount Pleasant Engineer, Inventor and Architect

Sir John Macneill

Early life • 1793: Born 5 th May • 1811: Commissioned in Louth Militia 29 th April • 1816 : Militia disbanded

Working as an engineer • 1816: Started work on roads, bridges, drainage and surveying in Dundalk area • 1819: February 22 nd Iron Road Roller nearly ready • 1819: March, Road roller working well • 1820: Bridges-stone or iron?

The early 1820’s • 1822: Map of the Lower Barony- scale 8 inches to the mile • 1822 c Married Isabella Mercer • “never was qualified or adapted either for Mercantile or farming business” • 1823: Lithography • 1823: December-Writes to Foster from Galway where he is working for Nimmo

Move to England • 1826 Did a survey of the River Boyne at Drogheda for Nimmo. • 1826 Joined Thomas Telford in December • 1827 Elected an associate of the Institution of Civil Engineers, proposed by Telford, Cubitt and Farmer • 1828 Development of Pirameter

London-Holyhead Road

London -Holyhead Road

England, Scotland Ireland 1831 -1840 • Evidence to Select Committee on Holyhead and Liverpool Road • Evidence to Select Committee on Steam Carriages • Sir Henry Parnell’s Treatise on Roads • Tables on Earthwork Calculations published

Highgate Archway Road

Highgate Tunnel

Steam Omnibus

Earthwork Tables

Instrument for lines of slope

England, Scotland Ireland 1831 -1840 • In 1833 and 1834 he made Canal boat experiments in Scotland • Telford died in 1834 and left Macneill £ 400 and his notebook • Macneill’s son Telford was born in the same year.

Slammannan Bridge

Cork and Cove Railway(1837)

Proposed Route

Actual route(1859 -1862)

Dublin and Drogheda Railway • 1836 Thomas Brodigan of Pilton House

Iron Lattice Bridge

Malahide Timber Vidauct

The Boyne Viaduct

Viaduct Test

Boyne Viaduct

Bindon Blood Stoney

Harbour Drogheda

James Barton

Viaduct (from Howden)

The Boyne Viaduct

Viaduct 1932

Travelling Gantry

Sir John as architect • • • Mount Pleasant Flax Works Portadown Station Carlow Station Egyptian Arch Craigmore Viaduct

Mount Pleasant

Mount Pleasant

Flax Mill

Portadown Station

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Egyptian Arch

Craigmore Viaduct

First Enterprise August 1947