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Roads and Structures

A851 Broadford to Armadale Phase 5B Teangue

Client The Highland Council
Value £2.76m
Designer The Highland Council
Programme 36 Weeks
Contract Form Measure and Value       
Completed 2008

The purpose of the contract is to widen the existing single lane carriageway to double lane carriageway, implement service diversions, form new structures to roadline to facilitate widening of road and lay culverts and otter pipes across the road. The earthworks element involves cut and fill and import from a locally sourced borrow pit. Drainage includes carrier drains, filter drains, catchpits and road gullies. Services comprise of BT ducts and chambers, new water mains and diverted electric cables. Final works include kerbing, safety barriers, sub-base and surfacing to roadline along with white lining, signage and accommodation works for local residents.

Principal Elements included:

Excavation 20,000m3 / Infill 18,000m3
Concrete Structures 418m3 / Formwork 1,000m2
90mm DPPE Water Main 900m / BT Ducts 3,000m
Stockproof Fencing 3,000m / Drainage 2,500m
Type 1 Sub-base 4,000m3 / Surfacing 50,000m2
Kerbing 7,410m

 

 

Key Issues:

  • Crushing aggregates on site from locally sourced borrow pit
    Protection of watercourse
    Maintaining of access for otters etc
    Removal of unsuitable soils
    Reinstatement of borrow pit including replanting of trees