BGS Civils bundle

Scale 1:50 000
Coverage Great Britain
Format GIS line and polygon data. (ESRI, MapInfo, others available by request.)

Product 1: BGS Civils bundle (all 8 layers)

£0.50 per km2

Product 2: BGS Civils individual layers

£0.30 per km2

Product 3: BGS Civils web viewer (subscription service)

£500 for the first layer. £100 for each additional layers.

Or, £1000 for all layers.

BGS Civils comprises 8 layers: bulking volume, corrosivity (ferrous), discontinuities, engineered fill, excavatability, strength, sulfate/sulfide, foundation conditions.

All products are subject to number of users and licence fee. Products 1 and 2 are also subject to a data preparation fee.


BGS Civils is a suite of national maps of engineering properties based on geological data and the digital 1:50 000 scale geological map — BGS Geology 50k.

The primary goal of the product is to provide the key engineering characteristics of the geology of Great Britain to professional users who need simple and rapid access to such information. You might be planning pipeline routes avoiding difficult ground conditions, calculating tender costs for trench excavation or you might need knowledge of ground properties in order to plan your daily activities.

The data is provided as GIS shapefiles and are available to licence individually or as a bundle to meet your own requirements.


Bulking volumeBGS Civils: bulking volume
Bulking is defined as the increase in volume of material when it is excavated from its in situ location. This dataset provides information on the bulking factor of bedrock and superficial deposits, which may be useful if material is being removed or re-used on construction sites.
Corrosivity BGS Civils: corrosivity (ferrous)
Corrosion is the slow degradation of a material by means of a chemical reaction. The corrosivity dataset indicates the potential corrosiveness of the ground to infrastructure at shallow depth.
DiscontinuitiesBGS Civils: discontinuities
Discontinuities are defined as any break or change in the continuity of a rock mass that has the potential to have a reduced strength. This dataset provides information on the discontinuities in bedrock and superficial deposits and can be used to help predict how rocks may break up during excavation or how stable they will be on slopes or under foundations.
Engineered fill BGS Civils: engineered fill
Engineered fill is material that is used to fill in a depression or hole in the ground or artificially change the elevation of the ground level (e.g. embankments). This dataset provides information on the suitability of excavated geological material to be used as engineering fill or other possible uses.
Excavatability BGS Civils: excavatability
Excavatability is a measure of how easy it is to dig up and remove geological materials and is used to determine appropriate excavation methods. This dataset provides information on zones of excavatability and the local factors controlling it for a range of excavating equipment.
BGS Civils: foundation BGS Civils: foundation
The 'foundation conditions' of rocks and soils are an important consideration for determining how surface construction loads are transmitted into the ground. There are many factors that need to be considered, including strength, possibility of settlement, weathering and aggressive soil characteristics. This dataset provides an overview of factors that should be considered when designing foundations for buildings.
Strength BGS Civils: strength
The strength of geological materials is related to their composition, density, and how their mineral components are bound together, i.e. interlocking grains or cementation. This dataset provides information on zones of rock strength (based on field description of materials).
Sulfate/Sulfide potential BGS Civils: sulfate/sulfide potential
Sulfates and sulfides in rocks and soils are, when in certain forms and in certain conditions, of importance to the engineered environment as they can give rise to aggressive ground conditions. This dataset provides a guide to the stratigraphic units and lithologies throughout Great Britain and their potential to form a sulfate/sulfide geohazard.


Contact Digital Data for more information.

Hutton field: well correlation diagram.