Dublin City Council Contract for Middle Wad Flood Alleviation Scheme Howth Road Tunnel
Published
Buyer
Value
Description
The Contract provides for the Detailed Design and Construction of the following flood alleviation works, which comprises provision of additional capacity along the culverted River Wad: Tunnelled culvert, circa 34m long, 1500mm diameter between no. 96 and no. 97 Howth Road to operate in parallel with existing culvert route. • Circa 5m long culvert connection from tunnelled culvert to existing culvert. • Connection chamber to split flows between new and existing culvert routes. • Drive and reception shafts to facilitate tunnel construction. • Removal and disposal of all surplus materials • At each work area and construction compound: reinstatement and landscaping in accordance with the reinstatement plans. • Temporary works include establishing and securing a main construction compound, which will be in operation for the entire duration of the Works; and temporary works/ set down areas at Howth Road. The main compound is likely to be situated in the green area at the Castle Court estate. • Other temporary works including, but not limited to, temporary river diversion at the Howth Road and stockpiling of excavated earth. • Breaking out existing Wad River to pass through the proposed downstream shaft. • Grouting of temporary diversion at completion of works • Ancillary Works as per the requirements of this specification including, but not limited Howth Road and stockpiling of excavated earth. • Breaking out existing Wad River to pass through the proposed downstream shaft. • Grouting of temporary diversion at completion of works • Ancillary Works as per the requirements of this specification including, but not limited to, pre and post condition surveys, testing works and specialist engagement The Contract provides for the Detailed Design and Construction of the following flood alleviation works, which comprises provision of additional capacity along the culverted River Wad: Tunnelled culvert, circa 34m long, 1500mm diameter between no. 96 and no. 97 Howth Road to operate in parallel with existing culvert route. • Circa 5m long culvert connection from tunnelled culvert to existing culvert. • Connection chamber to split flows between new and existing culvert routes. • Drive and reception shafts to facilitate tunnel construction. • Removal and disposal of all surplus materials • At each work area and construction compound: reinstatement and landscaping in accordance with the reinstatement plans. • Temporary works include establishing and securing a main construction compound, which will be in operation for the entire duration of the Works; and temporary works/ set down areas at Howth Road. The main compound is likely to be situated in the green area at the Castle Court estate. • Other temporary works including, but not limited to, temporary river diversion at the Howth Road and stockpiling of excavated earth. • Breaking out existing Wad River to pass through the proposed downstream shaft. • Grouting of temporary diversion at completion of works • Ancillary Works as per the requirements of this specification including, but not limited Howth Road and stockpiling of excavated earth. • Breaking out existing Wad River to pass through the proposed downstream shaft. • Grouting of temporary diversion at completion of works • Ancillary Works as per the requirements of this specification including, but not limited to, pre and post condition surveys, testing works and specialist engagement
Timeline
Publish date
7 months ago
Close date
5 months ago
Buyer information
Dublin City Council
- Contact:
- Dublin City Council
- Email:
- procurementunit@dublincity.ie
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