Planners are hoping to save hundreds of thousands of pounds set aside for the Maidenhead Waterways project as they await the results of crucial surveying work.
Engineers from contractor McNicholas turned out with heavy duty machinery at Town Moor last week as part of work to confirm the depth of a sewage line running under the Moor Cut channel.
It is hoped the data will help indicate the pipes will not need to be moved to allow for the channel to be dug deeper and restored as part of the Waterways project.
More than £0.5m has been budgeted to pay for moving the pipes, but project organisers say much of the money could be saved if they can prove part or all of the line will be unaffected by the work.
Ground penetrating radar has already been used to track the line's route, but workers needed to dig a trial pit down to the pipes to test how accurate the information was.
The day-long project, which took place on Tuesday, November 26, involved digging down to the pipes and using a special vacuum excavator to pump out the ground water which flooded into the hole.
The results are being analysed by lead consultants Golder Associates to inform the detailed design of the waterway.
Maidenhead Waterways group chairman Richard Davenport said: "We were very impressed by the McNicholas team and the specialist equipment used for the trial pit excavation.
"A substantial cost for the implementation of the waterway hinges on whether or not the twin main here needs to be moved.
"Any saving in the build costs will help with the challenge of funding the waterway implementation."
Moor Cut is not part of the first stage of the project, which is due to commence next year and will involve work to widen and open up the York Stream channel.
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