Bridges built in 2016/17 and material used: EIR release

FOI reference: FOI/18/01455
Date received: 21 May 2018
Date responded: 19 June 2018

Information requested

'Can you please provide me with the most up-to-date information you hold on the following:

1. Total number of bridges constructed in Scotland in 2016 and 2017 and the material of construction used for each bridge (e.g. steel, concrete, masonry, etc.). In the case of steel bridges, please indicate the structural form (e.g. plate girder, box girder, truss, etc.) and the tonnage of steel used in each bridge if available.

2. Total number of bridges managed by the Traffic Scotland and, of these, the total number of bridges constructed from each different construction material in the form of "x bridges constructed from reinforced concrete, y bridges constructed from steel", etc.'

Response

I have numbered our response for ease of reference.

1. In response to your request the total number of bridges constructed in Scotland in 2016 and 2017 is 29. This figure is taken on the basis that the year of completion was 2016 / 2017.

The construction materials used for each bridge are;

Primary Deck Element Material:

• Reinforced Concrete: 13
• Pre - Tensioned Concrete: 9
• Composite: 5
• Steel: 2

In the case of steel bridges, the structural form used is;

Primary Deck Element:

• Beam / Girder - Box Beams: 1
• Weathering steel girders with a reinforced concrete deck: 1

In relation to the tonnage of steel used in each bridge, while our aim is to provide information whenever possible, in this instance Transport Scotland does not have the information you have requested. The reason why we don't have the information is that Transport Scotland do not hold this information on our systems.

Please note, this FoI response refers only to structures classed as bridges managed by Transport Scotland on behalf of The Scottish Ministers. The figures do not include bridges for which the Scottish Ministers are not the responsible authority e.g. local authority, Network Rail etc. The figures do not include any footbridges.

Where the material or structural form of a bridge varies by span, the material and structural form of the first span is quoted. This is denoted as the "Primary Deck Element".

The figures are abstracted from Transport Scotland's Integrated Roads Information System (IRIS) database as at 18 June 2018 and are subject to change.

2. In response to your question regarding the total number of bridges managed by the Traffic Scotland, Traffic Scotland do not manage any bridges. Transport Scotland manage Trunk Road structures on behalf of Scottish Ministers and manage 1999 bridges.

Of these, the total number of bridges constructed from each different construction are set out below;

Primary Deck Element Material:

• Reinforced Concrete: 1192
• Plain / Mass Concrete: 28
• Post -tensioned Concrete: 35
• Composite: 34
• Pre - Tensioned Concrete: 265
• Steel: 222
• Wrought Iron: 1
• Corrugated Steel: 124
• Masonry Brick: 9
• Masonry Stone: 94

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