Inundatiesluis(B), Betonnen werken omgeving Fort Spion

English translation

The text above is the record as published by the Rijksdienst voor het Cultureel Erfgoed, in Dutch. The English below is a machine translation made by TreeAlive, not by the Rijksdienst voor het Cultureel Erfgoed; it has not been checked by a person. Where the two differ, the original is the record. Report a translation error: privacy@treealive.com

Description

NEW HOLLAND WATER LINE

Introduction

INUNDATION LOCK WITH INUNDATION CANAL as functional components of the inundation system of the New Holland Water Line. The defence system of the New Holland Water Line was in the first place based on the controlled flooding of (large) terrain surfaces. Controlled inundation required an ingenious system of water works, such as locks, weirs and canals, with which the necessary water level could be set and maintained rapidly and within narrow limits. Many different types of locks were applied, depending on the location where they functioned in the system. Sometimes already existing shipping, drainage or check locks were used, but many new ones were also built or existing ones (substantially) adapted. The Mijnden Lock, a small lock at the location of the hamlet of Mijnden on the Vecht, which originally served mainly for local shipping, was arranged around 1896 for functions within the New Holland Water Line. In 1925 a second water channel was laid out to the south of the lock, in which an reinforced concrete water inlet and water barrier were incorporated that made polder and inundation level management possible, independent of the lock. The lock itself now serves a function for pleasure boating.

Description

INUNDATION LOCK in the eastern dike of the Vecht, over which runs the Mijndenseweg, dating from 1925. The work, executed as a reinforced concrete culvert lock, has a length of approximately 3.50 m and a width of approximately 7.50 m and consists of a west-east directed pipe. The lock could serve for water inlet, water discharge and as a barrier. On either side wing walls. Adjoining the lock to the east an east-southeast directed INUNDATION CANAL of approximately 100 m length, which could also serve for drainage and which with a northeast directed bend connects to the waterway the Drecht.

Valuation

INUNDATION LOCK WITH INUNDATION CANAL south of the hamlet of Mijnden are of general importance because of:

* Cultural-historical values as part of the New Holland Water Line as designed by C.R.T. Kraijenhoff and first constructed from 1815 by him, Jan Blanken and major-engineer Willem Offerhaus and thereafter by others for approximately 125 years strengthened and improved.

* Architectural-historical values, in particular as an expression of a building and water works related to military-strategic construction science, which are based on the system of inundation and access defence (19th and 20th century),

It concerns here an expression of historical water engineering related to military-strategic construction science, namely an inundation lock / discharge lock and check lock with inundation canal.

* Ensemble values as part of the New Holland Water Line. Also because of the functional and physical coherence with the other components of the complex.

* The components are representative (characteristic) because they can demonstrate application of the principle of the operation of the inundation system, as it was modernised in the Interwar period.

* The components are reasonably well preserved because the main form, construction detailing and various components are recognisable / present.