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Title: Reappraisal of the River Lee to Wheathampstead Mill
Author: Julie K Lee Stewart
Document Type: Monograph
To assess the frequency and extent of flooding, and the effectiveness of various alleviation options, the hydrological system of the River Lee to Wheathampstead was modelled in considerable detail. A hydrological model (RORB) was built in 1988 for Catchment Planning purposes and adapted at Waltham Cross to provided inflows to an ONDA model which extended from Luton Hoo Lakes to just downstream of Wheathampstead Mill. In September/October 1992 Brian Izzard requested that hydrographs for two events; 29 May 1992 and 22 September 1992 be run through the ONDA model to assess the peak flow and frequency of the flooding which occurred at Wheathampstead. Concern was expressed that there was a several cumec difference between flows recorded at Luton Hoo gauging station and those estimated by hydraulic models (based on calculations to achieve observed levels) at Wheathampstead Mill and this may influence the level of protection assumed in the design works prepared for the improvements at the Mill. Brian Izzard required confirmation that the flows and levels estimated in the proposed improvement design option 3 were still valid.
Publisher: National Rivers Authority
Publication Date: 1994
Publication Place: Reading
Subject Keywords: FloodingModelsHydrography
Geographic Keywords: Lee (Hertford)
Extent: n.p. [15]
Total file downloads: 290

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