Costs of solutions

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Note: the info on this page is temporary, for demonstration purposes File:Broken

One of the goals of the FIThydro project is to determine the financial costs of implementing mitigation measures (solutions).

Library of possible measures Min Max
[Euro] [Euro]
Habitat Instream habitat adjustments Placement of spawning gravel in the river 10 100
Placement of stones in the river 50 150
Cleaning of substrate - ripping, ploughing and flushing 1 50
Placement of dead wood and debris 10 150
Re-storing habitat Removal of weirs 2,000 1,000,000
Construction of a 'river-in-the-river' 50 5,000
Construction of off-channel habitats 1 100
Shore-line habitat Environmental design of embankments and erosion protection 10 150
Restoration of the riparian zone vegetation 1 50
Fish migration Downstream Migration barrier removal 2,000 1,000,000
Operational measures (turbine operations, spillway passage) NA
Sensory, behavioural barriers (electricity, light, sound, air-water curtains) NA
Fish-friendly turbines 500,000
Skimming walls (fixed or floating) 3,000
Bypass combined with other solutions 10,000 25,000
Fish guidance structures with narrow bar spacing 2,000 40,000
Fish guidance structures with wide bar spacing 2,000 40,000
Downstream fish protection system using electro shock technique
Bottom-type intakes (Coanda screen, Lepine water intake, etc) NA
Other types of fine screens
Vertical slot fishways
Upstream Complete or partial migration barrier removal 2,000 1,000,000
Nature-like fishways 5,000 20,000
Pool-type fishways 10,000 100,000
Baffle fishways 5,000 100,000
Fishways for eels and lampreys 600
Fish lifts, screws, locks, and others 10,000 500,000
Truck transport NA
Sediment Rout-ing Drawdown reservoir flushing 1 50
Sediment sluicing NA
Removal By-passing sediments NA
Off-channel reservoir storage NA
Mechanical removal of fine sediments (dredging) 5 10
Minimizing sediment arrival to reservoir 150,000
Restoration in rivers Removal of bank protection NA
Removal of debris NA
Environmental flow General flow regime Mitigating reduced annual flow and low flow measures
Mitigating reduced flood peaks, magnitudes, and frequency
Short-term flow regime Mitigating rapid, short-term variations in flow (hydro-peaking operations)