Height bolts or NAP bolts

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Provided by Ministerie van Binnenlandse Zaken en Koninkrijksrelaties

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Dataset information

Catalog

Dataportaal van de Nederlandse overheid

Country of origin

Netherlands

Updated

Created

Available languages

Dutch

Keywords

NAP, hoogte, locaties, viaduct, brug, Spijkers, nagel, Normaal Amsterdams Peil, Hoogtebout

Datasource

Official portal for European data link

Quality scoring

225

Dataset description

A **height bolt** is a metal nail placed in a building or artwork (bridge/viaduct). On the basis of a height bolt, heights relative to Normal Amsterdams Peil (NAP) can be determined for construction, infrastructure and water management. The data contains the locations and heights of the bolts in Eindhoven. **Please note:** A check must always be carried out by watering between two height bolts. This to prevent an incorrect height bolt or height from being maintained. The spread is such that there is a height bolt within 500 meters. The accuracy of the NAP height is ± 3 mm.

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