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Boat O' Brig Railway Bridge

Spey (Orten) Viaduct

Boat O' Brig Railway Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: May 14, 2018

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Key Facts

Facility Carried / Feature Intersected
Railroad (Highland Railway) Over River Spey
Location
Fochabers: Moray, Scotland: United Kingdom
Structure Type
Metal 17 Panel Rivet-Connected Whipple Through Truss, Fixed and Approach Spans: Stone Segmental Deck Arch, Fixed
Construction Date and Builder / Engineer
1906 By Builder/Contractor: Head Wrightson of Thornaby-on-Tees, England and Engineer/Design: William Roberts

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
250 Feet (76.2 Meters)
Structure Length
635 Feet (193.55 Meters)
Roadway Width
Not Available
Spans
1 Main Span(s) and 7 Approach Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)

Bridge Documentation

This bridge sits on the site of a former railway bridge, with the approach system dating to this 1858 structure. The main span dates to 1906 and it replaced a plate girder bridge.

Official Heritage Listing Information and Findings

Listed At: Category B

Discussion:

Historic Environment Scotland Number: LB15849

Canmore ID: 130597

Site Number: NJ35SW 30

Description

Joseph Mitchell, 1858. Viaduct comprising steel lattice- girder (1906, replacing former plate-girder bridge) with 6-span approach at W bank, single span at E bank. Tooled ashlar, some bull-faced ashlar dressings. W bank: 3 wide and 3 narrower rusticated and keystoned arch rings, the wider close to river bank and supported by bull-faced ashlar cutwaters. E bank: single arch ring borne on bull-faced cutwaters. Panelled pilastered end abutments. String courses; ashlar copes. Approximate span; steel girder bridge; 250'. Approximate overall span; 635'.

Statement of Special Interest

Viaduct first constructed with plate-girder span which was replaced in 1906 with present bridge. Plaque (1905) records Messrs Head Wrightson of Thornaby-on-Tees as contractors, William Roberts, Engineer and William Whitelaw, Chairman, Highland Railway. Also known as spey (orten) viaduct.

Information From Moray SMR:

First constructed in 1858 by Joseph Mitchell with a plate girder span, which was replaced in 1906 by the present steel lattice girder span. A plaque from 1905 records Messrs Head Wrightson of Thornaby-on-Tees as contractors for the later span, with William Roberts, Engineer and William Whitelaw, Chairman, Highland Railway. The viaduct is constructed from tooled ashlar, with some bull-faced ashlar dressings. There is a 6 span approach at the West bank, and single approach span at the East bank. The West bank has 3 wide and 3 narrower rusticated and keystoned arch rings, the wider spans are close to the river bank, and are supported by bull-faced ashlar cutwaters. The East bank has a single arch ring, borne on bull-faced cutwaters. There are panelled pilastered end abutments, as well as string courses and ashlar copes. The approximate span of the steel girder bridge section is 250 feet (76 metres), and the overall span of the viaduct is 635 feet (194 metres). It is also known as the Spey (Orten) viaduct.

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