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Sand and Gravel (BMC_3)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

RDF: bmc_3.ttl

Name

sandGravel

Attribute

BMC Bottom Material Type

Definition

Granular material consisting of a mixture of small sandy eroded fragments of (mainly siliceous) rocks and small water-worn or pounded stones that are larger than a coarse silt grain.

Description

Generally ranging between 0.074 millimetres (No. 200 sieve) and 7.62 centimetres in size.

Accepted

2013-10-18

Allowed for

• BA040 Tidal Water
• BA070 Waterbody Bar
• BH010 Aqueduct
• BH020 Canal
• BH030 Ditch
• BH070 Ford
• BH071 Fordable Site
• BH082 Inland Waterbody
• BH095 Wetland
• BH140 River
• BH141 Inland Waterbody Bank
• BH190 Lagoon
• BH191 Channel
• BH250 Shallow Water Area

Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.