OS MasterMap Water Network Layer depicts a wide range of features from aqueducts to tunnels, with full flow direction and other supplementary information.
Getting started guide (PDF)
Information on how to get started using OS MasterMap Water Network Layer.
Product guide (PDF)
This product guide is designed to provide an overview of OS MasterMap Water Network and it gives guidelines and advice on how a customer might derive the maximum benefit from the product.
Release note (PDF)
This release note provides information about the April 2019 release of OS MasterMap® Water Network Layer.
Water Network Layer FAQs
OS MasterMap Water Network Layer provides a three dimensional structured link and node network of watercourses for Great Britain.
|Key Features||What this product offers|
|Data structure||Vector – topologically structured link and node network|
|Attributes||Watercourse name, flow direction, gradient, primary flow, TOID® reference, EA or SEPA catchment name and ID|
|Scale||1:1250 – 1:10 000|
|Update frequency||Quarterly - April, July, October, January|
|Supply||DVD and download|