The client’s challenge.
Crest Strategic Projects 2,500 unit Scheme at Faygate in West Sussex needed gas electricity and water live to their first phase within six months of receiving planning permission to meet their scheduled show home opening and sale of the first served parcel of land.
They only had the first 291 units designed in detail and wanted to gain cost surety for the whole scheme whilst maximising the available asset value.
The connection points for gas and electricity were three and four miles away respectively with water being a mile away along the same major dual carriageway that was already subject to significant planned roadworks and a highways officer that was refusing to allow any excavation within the highway.
TriConnex met with the full range of interested parties including National Grid, Southern Water, UK Power Networks and West Sussex Highways Department. The initial response was not to allow any utilities within the highway due to the sensitivity of the route and the potential damage to the road structure.
After lengthy discussions during which TriConnex were able to show that their significant experience in civils, utility and highway works would mitigate all of the risks presented by the assembled group.
This included a programme that was carefully dovetailed into the client’s civils contractor who was tasked with delivering a new roundabout junction into the site.
We also provided detailed risk assessment and review of the working practices required to excavate a significant trench along miles of live highway as well as agreements on reinstatement and inspection regimes. Clear delineation between the sites for health and safety responsibility was achieved with TriConnex working seamlessly as both a Contractor and Principal Contractor.
The final solution involved a single trench which at it largest included a 355mm water main, two 180mm gas mains and six 150mm electrical ducts. The trench was progressed at an average of 100m a week.
The clients’ roundabout works were delayed by a month due to severe weather which prevented us from extending our traffic management until it was complete and half way into the off-site works the local highways department reduced the allowable period for our traffic management due to pressure to carry out other works on the road network. This effectively reduced our site time from 9 months to 6.
We agreed with the highways representative that we could work in three areas concurrently to ensure that the planned works were completed within the allowable timeframe. This required a dynamic approach to traffic management, resourcing and deliveries which we managed carefully with all the involved parties.
At the same time and after significant negotiation TriConnex received approval for temporary gas and electricity connections to closer networks that would be able to be installed in time to provide supplies until the permanent connections were made.
The works were completed safely and Crest Strategic projects had live gas electricity and water on site before the required programme date and before their regions sales units had reached roof level.
They were able to meet the show home opening and allow the sale of the first served parcel of land to go ahead on schedule generating important cashflow.
The Client reputation with the local authority as a responsible developer has been maintained as it was able to minimise off site disruption to a single well managed activity.
Time and Costs were minimised through the delivery of a single excavation for all three services.
A unique set of terms and conditions were developed jointly with Crest allowing them to enjoy the benefit of the maximum asset value with a firm cost for the first phase and a detailed mechanism to ensure competitive costing for future phases.