Portsoy Improved Disposal Scheme.

PORTSOY IMPROVED DISPOSAL SCHEME

PROJECT DESCRIPTION

Gravity sewers, pumping chamber, pumping main, screening station, foul and stormwater outfalls.

Client North of Scotland Water Authority

Completion 1999

Value £0.95m

AREAS OF RESPONSIBILITY

Hydrographic, land survey, and underwater inspection - Hydraulic modelling and detailed design - Statutory consultation - Contract documentation

PRINCIPAL ELEMENTS

  • Screening Station - 550 l/s
  • Gravity Sewers (600 675mm dia.) - 450m
  • Outfalls (300 675m dia.) - 300m

KEY FEATURES

Selection of optimum location for outfalls on exposed rocky foreshore by use of hydrographic survey and underwater inspection expertise. Design of 20m long steel carrier tube to allow rapid and economic installation of end of 300 dia foul sewer to 3m C.D. Use of profiled formwork to fit underwater contours. The design allows flows from 9 l/s to 550 l/s to discharge by gravity.

CONTRACTORS

Civil Contractor - W. M. Donald Ltd

M & E Contractor - Europump Ltd

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Glasgow

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High Street

Dingwall

Ross-shire

IV15 9HA

 

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Isle of Lewis

Western Isles

HS2 9NA

 

 

Tel 01851 612454

Fax 01851 612352

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