Browsing by Author "Fipps, G."
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Item Demonstration of the Rapid Assessment Tool: Analysis of Canal Conditions in Hidalgo County Irrigation District No. 1(Texas Water Resources Institute, 2008-10) Leigh, E.; Fipps, G.Item Demonstration of the Rapid Assessment Tool: Analysis of Water Supply Conditions in the Harlingen Irrigation District(Texas Water Resources Institute, 2008-11) Leigh, E.; Fipps, G.RAT (Rapid Assessment Tool), currently under development, is a combination of surveys, data collection, mapping and limited direct measurement designed to provide a quick and cost-effective analysis of the conditions of the water distribution network of irrigation districts. The Water Supply (Head) Conditions component of RAT is designed to determine the extent of the area affected from less than optimal water supply, to identify associated canal and pipeline segments, and to define the major causes of the problem. This report summarizes the application of this RAT component in the Harlingen Irrigation District. Less than optimal water supply conditions were found to affect approximately 21,000 acres within the district. This means there is either insufficient flow (volume) or pressure to meet demand at the farm turnout. On an area basis, 6% of the affected area has minor problems, 59% moderate and 35% severe. This report includes tables and 7 charts which detail the types, extent, and causes of the head problem.Item Ponding Test Results Seepage and Total Losses Main Canal B Hidalgo County Irrigation District No. 16(Texas Water Resources Institute, 2008-10) Leigh, E.; Fipps, G.Item Ponding Test Results Seepage and Total Losses, North Alamo Main Canal Hidalgo County Irrigation District No. 2(Texas Water Resources Institute, 2008-10) Leigh, E.; Fipps, G.Item Ponding Test Results Seepage and Total Losses, Secondary Canals 13, 16, and 29 Donna Irrigation District Hidalgo County No. 1(Texas Water Resources Institute, 2008-10) Leigh, E.; Fipps, G.Item Ponding Test Results Seepage Losses Laterals 8E and 2A-C, Maverick County Water Control and Improvement District No. 1(Texas Water Resources Institute, 2008-11) Fipps, G.; Leigh, E.Item Seepage Test Loss Results The Main Canal Valley Municipal Utility District No. 2(Texas Water Resources Institute, 2008-10) Leigh, E.; Fipps, G.Item Thermal Imaging of Canals for Remote Detection of Leaks: Evaluation in the United Irrigation District(Texas Water Resources Institute, 2008-11) Fipps, G.; Huang, YThis report summarizes our initial analysis of the potential of thermal imaging for detecting leaking canals and pipelines. Thermal imagery (video format) was obtained during a fly over of a portion of the main canal of United Irrigation District. The video was processed to produce individual images, and 45 potential sites were identified as having possible canal leakage problems (see Appendix I for all 45 thermal images). District Management System Team personnel traveled to 11 of the 45 sites to determine if canal leakage was actually occurring. Of the 11 sites, 10 had leakage problems. Thus, thermal image analysis had a success rate of 91% for leak detection. Two sites had leaks classified as “severe” by the DMS Team. This report also provides a detailed analysis of 4 sites, 3 with leaks and 1 without. For each site, photographs are included showing the source of the leak and/or condition of the canal segment. A literature review of thermal imagery for leak detection is included in Appendix II. Our findings and recommendations are as following: 1. thermal imaging is a promising technique for evaluation of canal conditions and leak detection; 2. the district provide should provide personnel to help the DMS Team verify the remaining 34 sites; and 3. the district should consider correcting the problems identified at sites 7 and 8.Item Water Loss Test Results for Lateral A Before and After Lining Hidalgo County Irrigation District No. 2(Texas Water Resources Institute, 2008-10) Leigh, E.; Fipps, G.Item Water Loss Test Results for the Pipeline Units: I-19/I-18, I-7A, and I-22 Hidalgo County Irrigation District No. 2(Texas Water Resources Institute, 2008-10) Fipps, G.; Leigh, E.Item Water Loss Test Results for the West Main Pipeline United Irrigation District of Hidalgo County(Texas Water Resources Institute, 2008-10) Leigh, E.; Fipps, G.Item Water Loss Test Results Main 'J' Canal Delta Lake Irrigation District(Texas Water Resources Institute, 2008-10) Leigh, E.; Fipps, G.Item Water Loss Test Results: West Main Canal United Irrigation District of Hidalgo County(Texas Water Resources Institute, 2008-10) Leigh, E.; Fipps, G.