33 R. Hamble: EC Freshwater Fisheries Directive (Salmonid), SAC (River), SINC (Banks), SSSI (300m north/1km south), Environment Protection Priorities for the Solent (2 out of 4), Solent European Marine Sites, Significant amenity use (3000+ vessels). Risk of pollution to the River Hamble from large spillage on highway. Currently no pollution control mechanism device between the highway drainage and the outfalls Flow control devices at both outfalls servicing the Hamble bridge including new infrastructure to convey flows from the network. New attenuation channel preceding the eastern outfall M27 River Hamble Pollution Control Issues and Recommendations
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11 M27 River Hamble Pollution Control 22 M27 River Hamble
Pollution Control Location Plan M4 Junctions 7 to 9 WB 33 R.
Hamble: EC Freshwater Fisheries Directive (Salmonid), SAC (River),
SINC (Banks), SSSI (300m north/1km south), Environment Protection
Priorities for the Solent (2 out of 4), Solent European Marine
Sites, Significant amenity use (3000+ vessels). Risk of pollution
to the River Hamble from large spillage on highway. Currently no
pollution control mechanism device between the highway drainage and
the outfalls Flow control devices at both outfalls servicing the
Hamble bridge including new infrastructure to convey flows from the
network. New attenuation channel preceding the eastern outfall M27
River Hamble Pollution Control Issues and Recommendations 44 14
small bore outlets discharge directly from the bridge deck into the
watercourse below and affects passing watercraft. Currently
spillage packs for bridge outlets on site Decommissioning of
existing outlets in Bridge decking. M27 River Hamble Pollution
Control Issues and Recommendations 55 M27 River Hamble Pollution
Control VM Score and Scheme Cost 5 Scheme Appraisal Non Appraisable
Total VM points:7 Total Cost (on PAR):401,314 Thank you. Any
questions?
