Acted as designer to Irish contractor Clonmel Enterprises, for design and build tender for N11 Kilpedder Interchange Scheme which will provide a grade-separated junction between the existing N11 at Kilpedder and the Greystones Southern Access Route dual carriageway. It will replace and upgrade a temporary connection between the two roads, which is presently under construction. The scheme is 20 km south of Dublin.
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4 slip ramps connecting to the N11 |
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2 roundabouts and connection to one existing roundabout |
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a bridge spanning over 4 traffic lanes, footpaths and two-way cycle track under the existing N11 dual carriageway |
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a 4 lane Greystones Link Road of approximately 0.4km length between the two roundabouts on either edge of the N11 |
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a 2 lane Western Link Road approximately 0.3km long with footpath and two-way cycle track |
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realignment of the N11 Southbound carriageway into the existing median over a length of 1.3km, with provision of a low working width safety barrier and a low retaining wall between the two carriageways |
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slight narrowing of the N11 Northbound carriageway to provide 3.5m wide traffic lanes instead of the existing 3.75m wide lanes |
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retaining walls approximately 250m long up to 7m high on either side of the Southbound diverge ramp |
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retaining walls approximately 150m long up to 5m high on either side of the Northbound diverge ramp |
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retaining wall approximately 150m long and up to 6m high between the eastern link road and the Southbound merge ramp |
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a footbridge at Kilpedder Village |
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pavement overlay and strengthening on the N11 dual carriageway over a length of 1.3km |
