E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 1 E18 MOTORWAY MUURLA – LOHJA ENVIRONMENTAL PLAN FOR BUILDING E18 MUURLA – LOHJA PPP-PLAN Jari Mannila Leading.

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Presentation transcript:

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 1 E18 MOTORWAY MUURLA – LOHJA ENVIRONMENTAL PLAN FOR BUILDING E18 MUURLA – LOHJA PPP-PLAN Jari Mannila Leading consultant EIA and environmental planning Ramboll Finland Ltd.

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 2 Building of E18 Turku - Helsinki Section Muurla – Lohja crosses a lake district with great natural values

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 3 PPP – in environmental planning Private financing meant that Minimum standard objectives had to be defined Road architecture and mitigation of negative impacts Different possibilities to reach the objectives were defined

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 4 Image of the road – architectural pricipals The landscape is rocky and varied Image of wilderness: partly rock and stone environment New covering principles for embankments and slopes Erosion proof (gravel) Natural reforestation Side ditch slopes on grass Embankment effects Mainly gravel Group of trees as softening effect Group of massive stones as focus

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 5 Gravel embankments

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 6 Structures Structures noise reduction (land walls 36 km, fences 4,5 km, balustrades 12 km) noise reduction (land walls 36 km, fences 4,5 km, balustrades 12 km) bridges bridges large waterway bridges (3) large waterway bridges (3) important land bridges (4) important land bridges (4) tunnel mouths (14) tunnel mouths (14) Interchanges (8) Interchanges (8) Greenery in road environment Greenery in road environment Landfills Landfills Hauklampi highway rest stop Hauklampi highway rest stop Flying squirrels´ crossings and other special objects Flying squirrels´ crossings and other special objects Construction plan for road environment included:

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 7 Tunnels Planning the tunnel mouths Excavation plans (tunnel techniques) Finishing touch adjusted to excavation results (tunnel techniques and environmental planning) A lot of teletechniques was installed Drainage of tunnels Gathering the washing water Grass refineries to purify water

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 8 Eastern end of Lakiamäki tunnel

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 9 Tunnel mouths

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 10 Noise reduction Noise reduction structures Natural, steep embankments towards the road Noise balustrades on road edges Noise fences Transparent balustrades on long bridges

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 11 fence h 3-4 m Partly transparent fence in Karnainen transparent fence on bridges Noise reduction structures

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 12

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 13

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 14 Flying squirrel strategy 1. Species is in EU´s natural directive appendix 4A 2. Finland has a special obligation to preserve the species nesting areas found 4. 6 nesting areas needed an exceptional permit to be destroyed 5. Permits provided crossing places for flying squirrel

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 15 Flying squirrel strategy Biologists defined the crossing places, a minimum distance between trees should not exceed 50 m Crossing places provided that preserved trees needed to be marked before construction All builders working in the areas had specific instructions to preserve the marked trees The risks of building procedures were evaluated in advance Significant inconveniences in building Risks on damaging the trees Regular reports for environmental authorities and negotiations in solving conceivable problems

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 16 Possible animal (and flying squirrel) crossings Tunnels and their mouths Large land bridges (5), trees helping the underpass Special animal crossing bridge Preserving trees on road embankments High plantation in median strip Preserving nesting places outside road area

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 17 Helping flying squirrels to cross the road: existing trees left in noise walls and complementary plantations

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 18 High plantation on median strip

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 19 Long valley bridge

E18 MUURLA-LOHJA PROJECT ROAD ENVIRONMENT 20 Special animal crossing bridge in Lohja