The Royal Ordnance Factory
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Appendix 9 Breakdown of Construction Costs Post September 1939

Services
Amount £ (1936/39)
Date
Notes
Original Approval 4,633,000
16.9.37
 
Naval Tubes 10,000
21.12.37
 
Life Saving Rockets 12,500
31.3.38
 
2 pdr. Filling 12,000
31.5.39
 
Magazines 100,000
3.12.38
 
Heating Magazines 6,620
7.12.39
 
Acceleration Costs 225,000
5.9.39
 
Fuze Power Factory 84,500
6.9.38
 
40 mm Group 146,000
7.12.39
 
Addition to Filling Program 350,000
19.10.39
 
Camouflage 40,000
19.10.39
 
P.A.D. 67,000
14.12.39
 
Tools 40,000
23.3.39
 
Additional Services- 40,000
23.3.39
 
(A) Road & Rail 85,092
12.10.40
Road Tunnel, Weighbridge, Access Roads, Extension to Tremains Halt
(B) Additional Buildings 93,622   Fuze Powder Factory, quarters, coal dump,
(C) Electrical Services 53,555   Additional Turbo Alternator, switch gear,
(D) Water Services 60,302   Water treatment buildings, Steam Mains, South site fire & water mains
(E) Cast Iron Lining to Magazines 67,200   Authors note: Only 2 magazines were lined owing to the shortage of Pig Iron
(F) Soiling and sowing of vacant areas 57,250    
(G) Boiler House Services 8,140    
(H) Additional mounding paving 12,530   Including additional paving South site
(J) Additional Cleanways 7,850    
(K) Fire A.R.P. & site protection 33,515   Including gas proof sashes
(L) Extra plant & unforeseen items 11,227    
(M) Supplies not included in the original estimates 52,000    
(N) Additional cost of services in original approval - Extra reinforcement due to site difficulties 142,966   Additional cost of cable laying, rock excavation and strengthening arches to magazine chambers.
(O) Increased cost of wages and Materials 165,915    
(P) Increased cost of preliminary surveys 18,550    
(Q) Removal of spoil to Waterton Moor 70,410   Including development at Waterton Moor
(R) Contingency Provision
47,842    
(S) Settled claims & provision for probable claims
298,285   Includes £250,000 in respect of Factory contractors claims.
(T) Additional provision for attendance on engineers
92,500    
(U) Additional Agency charges
75,825   Adjusted for agency charges on site protection, and rounding off of M.O.W.B estimates.

Subtotal

7,244,596    
Less saving on Main Factory engineering Charges: -34,365    
TOTALS 7,210,231 (£5,790,020) Final figure at the start of production in late 1939
       
Authors Notes     The pre September 1939 quote is stated in parenthesis above. As a rough guide the 1939 costing should be multiplied by 50 to approach current day costing
       

 

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Appendix 10

 

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