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Glenfinnan Viaduct

Glenfinnan Viaduct

Primary Photographer(s): Nathan Holth

Bridge Documented: May 14, 2018

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Key Facts

Facility Carried / Feature Intersected
Railroad (West Highland Extension Railway) Over River Finnan
Location
Glenfinnan: Highland, Scotland: United Kingdom
Construction Date and Builder / Engineer
1901 By Builder/Contractor: Robert McAlpine and Sons of Glasgow, Scotland and Engineer/Design: Simpson and Wilson

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
50 Feet (15.2 Meters)
Structure Length
1,247 Feet (380 Meters)
Roadway Width
Not Available
Spans
21 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)
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Bridge Documentation

This enormous concrete arch bridge is significant for its age and length, and was made famous in the Harry Potter movies. Constructed in 1901 it is an early concrete arch bridge, and its size would have made it a major engineering achievement in concrete construction at the time it was built. The concrete is unreinforced.

Above: On-bridge view, courtesy Wikipedia.

Official Heritage Listing Information and Findings

Listed At: Category A

Discussion:

Historic Environment Scotland Number: LB310

Canmore ID: 23340

Description

Opened 1901; long 21 arched concrete viaduct built on curve. Thicker pylons flank centre portion of continuous semi-circular arch rings. 416 yards (380 m) long.

Statement of Special Interest

The longest concrete viaduct in Scotland. West Highland Extension Railway opened from Ft William to Mallaig in 1901.

(Location cited as NM 910 813). Glenfinnan Viaduct, opened 1901 by the West Highland Extension Rly. A magnificent 21-span curved viaduct, with semicircular arches, constructed of mass concrete. The longest concrete railway bridge in Scotland, at 416 yds (380m) long.

J R Hume 1977.

This viaduct was built by Robert McAlpine & Sons of Glasgow to carry the West Highland (Extension) railway across the valley of the River Finna (or Finnan) at the head of Loch Shiel. The viaduct itself is chiefly of interest for its pioneering concrete construction, and remains in regular use by passenger traffic.

Information from RCAHMS (RJCM), 12 December 2000.

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Photo Galleries and Videos: Glenfinnan Viaduct

 
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A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer

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Maps and Links: Glenfinnan Viaduct

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