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Monument details

Summary

Grade I listed building. Main construction periods 1845 to 1847

Summary from record TQ 76 NE 101 :

Boat store and slips

Monument Types

• BOAT STORE (BOAT STORE, Post Medieval - 1540 AD to 1900 AD)
• SLIPWAY (SLIPWAY, Post Medieval - 1540 AD to 1900 AD)
• SITE (Post Medieval - 1845 AD to 1847 AD)

Full description

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The following text is from the original listed building designation:
TQ 76 NE CHATHAM MAIN ROAD
(West side) Chatham Dockyard
762-1/8/79
Nos.4, 5 and 6 Slip Covers
and Machine Shop No.6
GV I
Slip covers. 1845-47, by Messrs George Baker and Sons. Cast and wrought iron frame with corrugated iron sides and roof.
PLAN: rectangular plan with aisles, connected into a single cover over the three slips. Each of one storey; 10-bay range. Three wide gables with the frame exposed and 4 stages, open at ground-floor beneath a continuous glazed stage, 6-light second and 4-light third stages, with corrugated sheet gables, sides and roof, and folding doors.
A 3-bay left-hand section connects with the No.3 slip cover (qv) has iron posts to a corrugated-iron upper floor with 3 metal-framed windows.
INTERIOR: composite iron frames have I-section cast-iron columns with vestigial Tuscan capitals, a wide semi-circular arch across the slips, with principal rafters which extending out over the aisles, and segmental arches each side over the aisles, with diagonal braces, connected longitudinally by light trussed purlins. Various attached fittings for line shafting, and supports to gantry crane by G BUTCHARD/GRAVESEND.
HISTORY: covers for ship-building slips were introduced from c1814 because of the rapid deterioration of wooden ships exposed to the weather during construction. The earliest all-metal covers were built at Pembroke in the early 1840s. The Baker roofs differ however from earlier slip roofs in relying less on the cantilever effect of the outside aisle roofs. They managed moreover to double the distance between the frames established by earlier roofs to 9.5m, connecting them and supporting the roof by light trussed purlins. An exceptionally early example of a complete iron frame, and an important landmark in constructional history (Newman). Earlier iron roofs (demolished) had been closely modelled on the patterns of the Seppings wooden roofs. Brackets for travellers were inserted in 1863.
Forms a fine group with the 1837 timber slip cover to the S (qv) and the larger 1855 slip cover to the N (qv) and the other iron covers in the steam Dockyard to the N, all manifesting the remarkable progression in the development of free-standing engineering frames.
(Sources: Coad J: Historic Architecture of Chatham Dockyard 1700-1850: London: 1982: 182 ; Coad J: The Royal Dockyards 1690-1850: Aldershot: 1989: 114-115 ; The Buildings of England: Newman J: West Kent and the Weald: London: 1976: 206 ; Newcomen Society: Sutherland RJM: Shipbuilding and the Long-Span Roof: Paper read at Science Museum: 1989: 15-17).
Listing NGR: TQ7595169499

Description from record TQ 76 NE 101 :
(TQ 7595 6950) SAM No. 223 [No. 61 Boat store, No.s 4 and 5 slips: scheduled]. (1) 3 covered slips adjacent to No.3 boat store, of all metal construction and dating from 1848. (2) Photo illustration. (3)

Coad, J., 1982, Historic Architecture of Chatham Dockyard 1700-1850 (Article in serial). SWX7760.

Chatham world Heritage, 1996, Covered Slips 3-7 forum (Unpublished document). SKE6572.

CgMs Consulting, 2006, Archaeological Desk Based Study and Impact Assessment - Chatham Interface Land, Chatham Dockyard, Kent (Unpublished document). SKE15833.

CgMs Consulting, 2006, Preliminary historic building assessment Chatham Interface Land (Unpublished document). SKE15834.

<1> English Heritage 1:1250 SAM location maplet (OS Card Reference). SKE41612.

<2> English Heritage SAM Record Description (J Coad) (OS Card Reference). SKE41626.

<3> Jonathan G Coad, 1989, The royal dockyards 1690-1850: architecture and engineering works of the sailing navy. No.1, Plate Nos. 95 (Bibliographic reference). SKE6362.

Sources and further reading

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