Tenders Are Invited For Engineering Studies – Update Of The Diversion Of R. Agias Paraskeis And Adequacy Check Of The Implemented Project Of The Diversion Of R. Mavaratza To R. Parapigas And As Receiver

Engineering Studies – Update Of The Diversion Of R. Agias Paraskeis And Adequacy Check Of The Implemented Project Of The Diversion Of R. Mavaratza To R. Parapigas And As Receiver. The Scope Of The Study Concerns The Updating Of The Existing Settlement Studies As Well As The Demarcation Of Part Of The Streams Of Agia Paraskevi, Mavratza And Parapiga Of The Municipality Of Megareo With The Preparation Of A New Hydrological Study. As Part Of The Scoping Study, All Required Flood Protection And Stream Arrangement Projects, Bed And Slope Stabilization Projects, And Flow Arresting Projects Will Be Re-Evaluated. In Addition, The Adequacy Of The Constructed Flood Supply Crossing Techniques Will Be Assessed. The Scope Of The Study Includes: • The Preparation Of A Hydrological Study For The Determination Of The Flood Benefits Of The Design And Control Of The Arrangement - Demarcation Projects Of The Agia Paraskevi Stream As Well As The Mavratza And Parapiga Streams In Specific Locations. The Flood Benefits Will Be Calculated For A Recovery Period T=50 Years. • Completing – Enriching The Existing Studies, After They Are Checked Exclusively Based On The New Flood Management Data And The Results Of The Planning Benefits Of The Hydrological Studies Per Basin. In Case Of Insufficiency, The Required Changes Of Dimensions Of Technical Works And Standard Cross-Sections Will Be Proposed, As Well As The Possible Case-By-Case Proposal Of Flood Prevention And Supply Diet Projects, So That They Are Sufficient. • Based On The Final Updated Study Per Stream, It Is Also Demarcated By Sections, And The Approved Environmental Study Is Reorganized For The Renewal Of The Environmental Conditions Based On The Planning And Orders Of The Service. • The Completion And Updating Of The Existing Topographical Backgrounds From The Older Topographical Studies, But Also The Preparation Of New Ones, Which Will Form The Basis Of The Above Based On The Planning And Orders Of The Service. • The Completion Of The Environmental Studies, If Required And Based On The Orders Of The Service • The Drafting Of The Tender Documents And Saf-Faf Documents For The Immediate Tendering And Implementation Of The Projects. • The Adequacy Control Of The Implemented Project Of The Diversion Of The Mavratza Stream To The Parapiga Stream And To The Recipient, In Order To Investigate The Necessity Of Studies Of Its Arrangements. It Is Deemed Necessary To Re-Check The Project, Based On The Approved Flood Risk Management Plans For The Water Department Of Attica.