Slide 10
Slide 10 text
Anticipated Cost of the Canal
Original estimates
– Samuel Clowes
• 7 feet deep, stone locks 100 x 22 feet - £230,785
• 5 feet deep, stone locks 80 x 15 feet - £145,802
• 4 feet deep, wood locks 75 x 10 feet - £62,258
– Smyth Commission
• 5 feet deep, stone locks 108 x 20 feet - £165,802
• Later increased to £169,000
– Lieutenant-Colonel By
• Initial guess - £400,000 (1826 – before seeing site)
• First detailed estimate, locks 100 x 22 feet - £474,000 (December 1827)
• Estimate for final size 5 feet deep, stone locks 134 x 33 feet - £576,757
• Final estimate – February 1832 - £776,023
Final cost - £822,000+
Key question – why did the canal cost so much more than originally expected?