Carrying Out the work of Emergency Action Plan (EAP) for Morbe Dam Area as per the Dam Safety Act-2021

Cleaning grass and removal of rubbish up to a distance of 50 metres outside the periphery of the area as directed. The details are – i. Cleaning and clearing the site while surveying. ii. Collection and review of vegetation, and land-use data using GIS and remote sensing iii. Identification and mapping of areas requiring clearance, including vegetation, structures, and obstructions using GIS iv. The Site needs to be cleared for carrying out detailed survey along the AOI and Dam boundary, along the river, installation of Pillars, Demarcation of Red Line and Blue Line, Geotechnical Investigation, Mobilization of Resources and Machinery, Establishment of Benchmarks and GCPs etc. Clearing grass and removal of rubbish up to a distance of 50 metres outside the periphery of the area and as per instructions of Engineer In charge. v. Planning and marking of cleared zones with GIS-referenced coordinates vi. Removal or relocation of identified obstructions in accordance with safety and environmental guidelines vii. Preparation of georeferenced maps and a report documenting the cleared site to support construction, layout, and project management activities.The Area of Interest is 3000 Hectares. Considering 0.3 % of the Area for Site Clearance = 9.0 Hectares Approx. (90000 Square meter).

Fixing control points by Differential Global Position System (DGPS) instrument at every One Km. along both the sides of river including collection of necessary flood data etc.

Delivering Contour map of 0.50 m. contour interval by using standard software & superimposing it on village map with scale 1:5000 showing Prohibited lines (Blue line) & Restricted line (Red line) and OHFL (Yellow line) along with mapping of structures & other details etc all complete as directed or as per the directions of Engineer in charge.

Providing computerized detailed cross section drawings in two copies at 100 m interval with actual profile of river (levels at every 30m. distance along cross section) on A-3 size paper with scale 1cm = 15m or 1cm = 30m which is suitable as per site condition showing 25 year return flood line (Blue line) and 100 years return flood line (Red line) computed by software analysis and submission in the form of soft and hard copy as directed by Engineer in charge. So as to use the data of above Item by HEC-RAS Software. including submission of check print and getting approval of Engineer in charge etc all complete as directed. L sections and Cross-Section of the Rivers inside the AOI - Preparation of longitudinal (L) sections and cross-sections (C/S) of the river, reservoir, and dam site at desired locations as per the requirements of the project and as per the directions of Engineer in charge, It includes – i. Collection and verification of topographical and survey data. ii. Establishment of reference points and alignment for sectioning. iii. Generation of accurate L-sections along the river/reservoir axis and C-sections at selected intervals as the per directions of Engineer in charge. iv. L Sections for every 500 meter segment intervals along 15Km Length (with 10 meter chainage). The Number of L Sections = 30. v. Cross Sections at every 100 meter segment interval for 15Km Length (with 5 meter chainage). Number of Cross Sections =150. vi. L Sections and Cross Sections at important locations to be provided as per the directions of Engineer in charge and as per the requirement of the project. In set of 2 Copies. vii. Preparation of georeferenced maps and profiles for integration with GIS-based hydrological studies and dam studies etc. viii. Submission of digital datasets in GIS shape files, Cad files and Excel files etc, Plans, sectional drawings, Elevation Profiles and a comprehensive report to support design, analysis, and planning of the dam and associated structures.

Computation of Blue line ( 25 Year return flood line ) and red line ( 100 year return flood line ) and OHFL (Yellow line) by using HEC-RAS software including estimation of flood getting approval of competent authority for the same giving all the precise necessary input details into the software, viz. cross sectional and longitudinal features of the stream, flow obstructions etc. including site validation & recalculation to the satisfaction of Engineer In charge etc all complete as directed. The total quantity comes out to be 45 Kms (15 Kms or Redline, 15 Kms Blue Line and 15 Kms Yellow Line)

Providing computerized detailed river alignment with contours on A-1 size paper with scale 1 cm equal to 15 m or 30m whichever is suitable as per site condition. (one sheet for 500 m. length of river) with contour at 0.50 m. interval including marking 25 years return flood level (Blue line) & 100 years return flood level (Red line) line, OHFL (Yellow Line) & showing locations of bridges, KT Weirs & other permanent structures on each drawing along and across the river as directed by Engineer in Charge, including providing one color check print & five hard copies (color print) with one soft copy etc. all complete as directed. Providing GIS based Plan for entire River / Rivers inside the AOI along with Dam line on backdrop of high resolution aerial images. Submission of maps in 5 sets of hard copies with 1 set having 30 sheets as directed by Engineer in charge. Total No of sheets = 150.

Marking of 25 years flood level ( blue line) & 100 years flood level ( Red line) and OHFL (Yellow Line) on permanent structures like Bridges, Temples & other permanent structures along & across river including painting, lettering at every not less than 100 m. interval & not more than 500 m. on both the banks of river, after the final approval of flood level. as directed by engineer in charge etc. all complete as directed.

Preparation of Autocad drawing with colour print for Building / Bridge / Road/ CD Works/Dam in required size etc. complete. - A-0 Size. Preparation of Autocad drawing from existing old drawings of L section, Cross section,Waste weir details, Tail channel details of Minor Irrigation Scheme in A-2 size with one colour print & two black & white print including giving soft copy of autocad drawing as directed by engineer incharge etc. complete. Digitization of existing data / maps / drawings as per the directions of engineer in charge.

Identification and Demarcation of the Catchment Area of Morbe Dam - Preparation of the catchment area for the Morbe dam, including – i. Collection and review of topographical, hydrological, and satellite data ii. Identification of the watershed boundaries and drainage network iii. Demarcation of the catchment area using GIS and survey data iv. Identification and delineation of the watershed and sub-watersheds using GIS-based spatial analysis and digital elevation models (DEMs) v. Watershed Analysis and Determination of Streams Orders using International Standard Software vi. Identification of Outfalls, pour points and Performing Raindrop Analysis using GIS. vii. Preparation of maps showing catchment limits, sub-basins, and river/stream networks viii. Submission of GIS-based maps and a report to support hydrological analysis, reservoir planning, and flood management.