FAST DANUBE Technical Assistance for Revising and Complementing the Feasibility Study Regarding the Improvement of Navigation Conditions on the

Transcription

1 FAST DANUBE Technical Assistance for Revising and Complementing the Feasibility Study Regarding the Improvement of Navigation Conditions on the Romanian-Bulgarian Common Sector of the Danube and Complementary Studies 1

2 FAST DANUBE DISC ` December 2018, Bratislava

3 Basic Project information Project number: 2014-EU-TMC-0297-S Budget: euro Period: Partners: RO AFDJ (leader), BG EAEMDR Financing: EU (Transport CEF Call 2014) 85%, National budget 15% 3

4 Project area Romania Bulgaria Critical locations map rkm 610 rkm 845

5 Project area Romania Bulgaria Critical locations map rkm 375 rkm 610

6 Main activities of the project Feasibility Study Environmental Impact Assessment Preparation of the procurement procedure for the final designs and the works actions Project management and communication 6

7 Project reports

8 Project reports

9 Project Progress -Surveys activities Two measurement campaigns, each including: - Hydrography (multibeam surveys) - Hydrology (ADCP hydrodynamic profiling) - Sampling of suspension and riverbed sediments 12 navigation bottlenecks, grouped together in five critical zones Estimation of workload/campaign: - Hydrography: 224 km km of transverse profiles - Hydrology: 550 profiles with 1100 transects - Sediments: approx riverbed and 7200 suspended samples

10 Hydrographical surveys Km SHADOW 1 (MR) ZOPEDA (ic) Buster XL (MR) 10

11 Hydrodynamic Mathematical Modelling Model software packages 1D modelling: Flood Modeller Pro software package free surface flow Saint-Venant equations modules: incl. sediment transport 2D modelling: MIKE 21 Flow FM software free surface flow integrated Navier-Stokes equations, using a flexible grid modules: hydrodynamic module, cohesive/non-cohesive sediment transport, morphology Navigation simulation modelling: SHIPMA (v7) software developed by MARIN and Deltares fast-time simulator uses autopilot algorithm to simulate control of the vessel 11

12 Hydrodynamic Mathematical Modelling Belene 1D Model 2D Model 12

13 Hydrodynamic Mathematical Modelling Model Build / Calibration Example MIKE 21 FM 2D Model River Humber CH2M Halcrow 13

14 Sample output of SHIPMA software simulation SHIPMA software specification brochure, MARIN/Deltares SHIPMA simulation of arrival of 150,000 DWT bulk carrier under moderate conditions at Khalifa Port, Abu Dhabi UAE (CH2M Halcrow) 14

15 Environmental Impact Assessment Main Issues - identified Sustainable navigation conditions must be achieved while protecting: Lateral Connectivity Sediment Equilibrium Migratory Fish/Continuity Nat 2000 & Wild Islands 15

16 Field works trips Migratory Fish Habitat Assessment Field trip 1 The first field work trip was undertaken between October November This trip covered all CPs other than CP 3 and CP 4 which could not be surveyed due to adverse weather conditions. This field work focused on identifying potential habitats along the Romanian river bank based and made us of the bathymetry data analysed during the office work to focus the survey effort. Field trip 2 The second fieldwork trip was undertaken in July This trip focused on the Bulgarian river bank at CP 5, CP 6 and CP 7 and These CPs were selected as they had been identified by the project engineers as the most likely sites to require physical intervention beyond dredging. 16

17 Field works trips Migratory Fish Habitat Assessment Results of the field works trips for collecting necessary data for Environmental study preparation Potential wintering pit found using bathymetry data at Bechet 17

18 Field works trips Migratory Fish Habitat Assessment The potential wintering pit /hole located close to the right river bank downstream the Bechet harbor 18

19 Field works trips Migratory Fish Habitat Assessment Potential spawning habitat located close to Gorni Vidin (BG) locality 19

20 Preparatory actions for EIA Initiated the Gap Analysis for: Biodiversity WDF Initiated the Multi-Criteria Analysis of main options: Includes the Initial Technical Options versus Significant Environmental Impacts (i.e. priority species and habitats) Developed environmental criteria and sub-criteria (including evaluation parameters) based on: Results of meetings with Stakeholders Previous comments/concern JASPERS and authorities on former EIA/AA Risk workshop Case studies Guidelines and other literature ICPDR publications 20

21 Options / Appraisal Process Navigation conditions Initial technical studies identified the existing navigation fairway constraints based on 1D modelling of low flow scenarios. Basic navigation fairway requirements: 2.5m minimum depth 180m channel width (150m if min. depth cannot be ensured) 1,000m bend radius 93% exceedance flow (at least 340 days per year) 21

22 General approach For each critical location, four options scenarios are considered for initial model simulations: Baseline option with no interventions ( zero option); Dredging only of the current fairway; Optimized Alternative ( OA ) preferred option recommended in the original 2011 feasibility study (if applicable); Two alternative new options for river training works that combine traditional engineering solutions, such as dikes and chevrons and more nature-based morphological solutions, such as the creation of artificial islands; 22

23 BECHET - Baseline 23

24 BECHET Dredge only option 24

25 BECHET Engineering option

26 BECHET Morpho engineering option

27 BECHET Morphological option

28 CORABIA Dredge only option

29 CORABIA Engineering option

30 CORABIA Morpho - engineering option

31 CORABIA Morphological option

32 Communication activities Stakeholders Natura 2000 Forum Working Groups Workshops / Presentations 32

33 STAKEHOLDER`S 33

34 Communication activities Natura 2000 Forum OBJECTIVE/VISION - To support the long term orientation of the Danube navigation authorities towards implementing the modern concept of integrated inland waterways management in line with best practice FORUM MEETINGS Will be organized and chaired by Consultant Participants will nominate one regular member and one deputy Will be fully documented the relevant data and supporting documents before the meeting and after, agenda, list of participants, minutes and presentations; FORUM WEBSITE - Members login by credentials. Active Topics on the Forum: 1_Studies, Investigations and Survey 2_Hydrodynamic Mathematical Model 3_River Morphology Study and Sediment Transport 4_Environmental Impact Assesment 5_Appropriate Assessment 34

35 Communication activities Working Groups and Workshops SUBJECT SPECIFIC WORKING GROUPS - to bring together subject matter experts from various stakeholders in reaching conclusions and contribute to the conceptual design of potential solutions morphology / modelling sturgeon / fish environmental / social engineering / technical solutions WORKSHOPS - to present/discuss project milestones Inception Report Risk Workshop Measurements Report, including associated data files Hydrodynamic mathematical modeling reports Feasibility Study Reports Modelling Report Morphology Report Alternative Solutions Report EIA and AA Final Project Report for Feasibility Study and associated studies 35

36 Romeo SOARE - romeo.soare@afdj.ro Thank you!