43 
1835 11 foot board placed above the Weir. Improved sluices. 
1843-4 The construction of the present Scarbro’ Railway 
Bridge and approaches. 
1845 The construction of the present Ouse Bridge probably 
facilitated the flow. 
1876 Boards increased to lft. lOin. 
1879-81 The construction of the Skeldergate Bridge and 
approaches. 
1881 & 83 Six shutters of 264 square feet total area, replace 
the six sluices of ’35, with an area of 102 square 
feet. 
The table herewith appended gives the height of floods as 
recorded, and where possible, the height as corrected to their 
probable level at Ouse Bridge by the present flood, taking that 
as registering 15ft. 8in. at the Ouse Bridge gauge. The two 
best comparisons are for the floods of 1636 and 1763. The 
present gauge registers from 16*75 ft. above ordnance datum. 
