Bomvrij militair object, Fort Jutphaas bij 3

English translation

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Description

Cluster 50. Bomb-proof storage facility/supplies magazine D.

NEW HOLLANDIC WATER LINE

Introduction

BOMB-PROOF STORAGE FACILITY / SUPPLIES MAGAZINE D (1871-1873) as an added component in the third construction phase to the Fort at Jutphaas, which had previously been raised as earthwork. With the increase in the range of artillery, the force of projectile impacts made it increasingly difficult to withstand bombardment. Reinforcement of brickwork, application of shock-absorbing masonry systems (among other things by means of arches), shallow angles of inclination and curved or indeed pointed forms, use of concrete - and later reinforced concrete - in increasingly heavy construction, were ways to keep the fortifications capable of withstanding increasing attacking force. Moreover, the application of earth coverings had proved to be an excellent means of absorbing or dampening the energy of impacts. This is the reason why many masonry or concrete works were provided with an earth layer or front protection of sand or earth. Depending on the period of origin - and thus the expected impact force of projectiles - one spoke of 'bomb-proof buildings', when they were deemed capable of withstanding a predetermined number of impacts of heavy calibre. Building D belongs to the brick, bomb-proof storage buildings erected in the third quarter of the 19th century on various forts in or behind the rampart. The building has a counterpart on the north side of the fort.

Description

BOMB-PROOF STORAGE FACILITY / SUPPLIES MAGAZINE D located centrally on the large south-eastern bastion of the Fort at Jutphaas with a brick front wall with sloping wing walls protruding forward on either side, provided with wattlework. The top is finished with artificial stone coping plates. In the middle of the wall is an arched opening with two narrow vertical openings placed one above the other on either side. These have an artificial stone surround and cast-iron shutters. The storage facility is identical to storage facility E.

Valuation

BOMB-PROOF STORAGE FACILITY / SUPPLIES MAGAZINE D is of general importance because of:

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

* Architectural-historical values, in particular as an expression of military-strategic construction, which is based on: a. the system of inundation and access defence (19th century), b. the race with increasingly strengthening offensive means (19th century).

This concerns a component that is an example of a brick structure from the third quarter of the 19th century, namely an earth-covered, bomb-proof storage facility.

* Ensemble value and situational values because of its location within the system of the New Hollandic Water Line in general and in particular in the direct relation to other components of the complex and as a counterpart to storage facility E.

* The component is representative (characteristic) because it is clearly recognizable as a bomb-proof storage facility.

* The component is well preserved because it still clearly exhibits the physical and functional characteristics that prompted its construction at the time.