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

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FAST DANUBE

DISC `18

12-13 December 2018, Bratislava

Basic Project information

Project number: 2014-EU-TMC-0297-S Budget: 5.252.000 euro Period: 11.2014 – 12.2020 Partners: RO – AFDJ (leader), BG – EAEMDR Financing: EU (Transport CEF Call 2014) – 85%,

National budget– 15%3

Romania

Bulgaria

Critical locations map rkm 610 – rkm 845

Project area

rkm 375 – rkm 610

Romania

Bulgaria

Critical locations map

Project area

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

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Project reports

Project reports

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 km2 + 600 km of transverse profiles- Hydrology: 550 profiles with 1100 transects- Sediments: approx. 1500 riverbed and 7200 suspended samples

Project Progress -Surveys activities

Hydrographical surveysKm 489.5

SHADOW 1 (MR)

ZOPEDA (iC)

Buster XL (MR)

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Hydrodynamic Mathematical ModellingModel 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

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Hydrodynamic Mathematical Modelling

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1D Model2D Model

Belene

Hydrodynamic Mathematical ModellingModel Build / Calibration

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Example MIKE 21 FM 2D Model –River Humber CH2M Halcrow

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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)

Sample output of SHIPMA software simulation

Environmental Impact Assessment Main Issues - identified

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Lateral Connectivity

Nat 2000 & Wild IslandsMigratory Fish/Continuity

Sediment Equilibrium

Sustainable navigation conditions must be achieved while protecting:

Field works trips Migratory Fish Habitat Assessment

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Field trip 1 The first field work trip was undertaken between October –November 2017. This trip covered all CPs other than CP 3 and CP 4which could not be surveyed due to adverse weather conditions.This field work focused on identifying potential habitats along theRomanian river bank based and made us of the bathymetry dataanalysed during the office work to focus the survey effort.

Field trip 2The second fieldwork trip was undertaken in July 2018.This trip focused on the Bulgarian river bank at CP 5, CP 6 and CP 7and These CPs were selected as they had been identified by theproject engineers as the most likely sites to require physicalintervention beyond dredging.

Field works trips Migratory Fish Habitat Assessment

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Results of the field works trips for collecting necessary data for Environmental study preparation

Potential wintering pit found using bathymetry data at Bechet

Field works trips Migratory Fish Habitat Assessment

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The potential wintering pit /hole located close to the right river bank downstream the Bechet harbor

Field works trips Migratory Fish Habitat Assessment

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Potential spawning habitat located close to Gorni Vidin (BG) locality

Preparatory actions for EIA

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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

Options / Appraisal ProcessNavigation 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)

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General approach

For each critical location, four options scenarios areconsidered 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 (ifapplicable);

Two alternative new options for river training works thatcombine traditional engineering solutions, such as dikesand chevrons and more nature-based morphologicalsolutions, such as the creation of artificial islands;

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BECHET - Baseline

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BECHET – Dredge only option

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BECHET – Engineering option

BECHET – Morpho engineering option

BECHET – Morphological option

CORABIA – Dredge only option

CORABIA – Engineering option

CORABIA – Morpho - engineering option

CORABIA – Morphological option

Communication activities

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Stakeholders Natura 2000 Forum

Working Groups

Workshops / Presentations

STAKEHOLDER`S

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Communication activitiesNatura 2000 Forum

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OBJECTIVE/VISION - To support the long‐term orientation of the Danube navigationauthorities towards implementing the modern concept of integrated inland waterwaysmanagement 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 supportingdocuments before the meeting and after, agenda, list of participants, minutes andpresentations;

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

www.fastdanube.eu

Communication activitiesWorking Groups and Workshops

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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

Thank you!

Romeo SOARE - romeo.soare@afdj.rowww.fastdanube.eu