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STAD SHIP TUNNEL A New Fairway for Safe, Efficient and Sustainable Transport Terje Andreassen, Project Manager Helsinki,13.October 2016

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Increased Safety and Improved Navigation for Maritime Transport past Stad peninsula

Increased Safety – reduce the risk of accidents at sea

! Improved Efficiency – reduce waiting time, more efficient transport of people and freight

! A shift towards more transport of goods on keel instead of trucks – better for the environment, new regional opportunities

!

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• Main fairway • Voyage in rough weather • Alternative fairway through Stad Ship Tunnel

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The Stad Sea – A Dangerous Voyage?

> Underwater topography > Currents and waves > 45 – 106 stormy days > More extreme weather

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Mission from The Ministry of Transport and Communications A Feasibility Study for Stad Ship Tunnel to be completed by spring 2017

• Feasibility Study • Review regulation plan • New impact assessment • Dimensioning vessels:

– Beam: 21,5 metres – Height: 29,5 metres – Depth: 8 metres

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• Length: 1700 m. • Cross section: 1625 m2. • Volume extraction bedrock: Ca. 3

million m3. Equivalent to ca. 8 million tons of blasted rock.

• Total costs: Ca. 2,3 billion NOK. • Construction time: Ca. 3-4 years.

Scope and Costs

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Amount of construction work

• New roads 5.700 m2 • Soil to be removed 270.000 m3 • Blasting in cuts 550.000 m3 • Blasting in tunnel 2.900.000 m3 • Scaling 115.000 m2 • Anchors 13.300 • Bolts 41.600 • Shotcrete 38.300 m3 • Structures in concrete 33.000 m3 • Structures in steel 70 ton

Operational Concept

• Capacity: 70-120 vessels per day • 84 % of today’s traffic could pass through • Relevant vessels: passenger ships, cargo ships and motor driven leisure crafts • Systems for safety and warnings - same as for road tunnels • Monitoring

Traffic Management

• One-way • Queueing system, Exact-time-intervals • Pilot Exemption Certificate or Pilot

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Plan for Navigational Aids

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Reports

• Stated goals • Impact assessment • Regulation plan • Technical feasibility study

with cost estimates • Contract strategy • Data-simulated voyage • Ship model trials • Plan for navigational aids

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Technical Feasibility Study A total and functional description of a probable project/enterprise

• Foundation drilling and seismic studies

• Geotechnical/geological considerations

• Marine structures • Guiding structure • Ventilation and insulation • Electrical installation • Risk assessment • Fire protection • Restructuring of public roads • Depositing tunnel mass

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Data-simulated Voyage Ulvesundet - Vanylvsfjorden

• Coastal Steamer MS Midnatsol

• Container Ship • Three other vessels • Challenges upon entry • Traffic Management • Other issues:

– Wind – Waves – Current – Visibility

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Ship Model Trials Remote Controlled Models in Marintek Harbour Basin Pool

• Scale:1:27,5 • MS Midnatsol • Container Ship

• LAT, Mean Sea Level, HAT • 0, 1, 2 knots current, counter/with

Purpose • Acceptable vessel sizes • Speed calculations • Direction and course stability • Lurch, squat effect • Wave movement

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Portals and Guiding Structure

Rig area

Filling for c+ 3,0

Parking

Turning-place for buses

Walkway and safety-fence

Terraces and trenching in bedrock

Overbridge structure

Portal in Moldefjorden

Portal in Kjødepolden

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www.kystverket.no www.kystverket.no/stadskipstunnel