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| Source: | Find a Tender Service (FTS) |
| Notice Type: | Tender notice |
| Buyer: | THAMES WATER UTILITIES LIMITED |
| Main Category: | Services |
| Procurement Method: | Competitive flexible procedure |
| Tender Status: | Closed |
| Estimated Value (ex. VAT): |
Pipeline status
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Application Deadline
3 October 2025
Closed
Estimated Value
£5,996,000
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| Estimated Value (inc. VAT): | £7,195,200 |
| Release Date: | 10 September 2025 |
| Application Deadline: | 3 October 2025 |
| Procurement ID (OCID): | ocds-h6vhtk-0597b6 |
| Notice Reference: | 055461-2025 |
All 2 notices for this procurement, oldest first.
Sewer Mapping
Sewer Mapping
View Original Notice
Access the full notice on the official portal
| Call-off method: | With mini-competition (call-off via competition) |
| Maximum operators: | 3 |
Thames Water is seeking to develop the mapped sewer network throughout Greater London and the Thames Valley area, in order to reduce blockages, internal and external floods and pollution. Unmapped sewers lead to a delay in Thames Water locating and attending blockages, floods and pollution, affecting local communities and the environment. The objective of FA2241 is to map any unmapped sewer networks at scale, speed and accuracy, directly supporting the Pollution Incident Reduction Plan (PIRP) that Thames Water is working towards during AMP8. Lot 1 - Aerial Mapping: Capture of 2,484 km² across 71 Sewer Drainage Area Catchments (SDACs) using manned aircraft, delivering georeferenced 2D, oblique 2D, and 3D imagery. Lot 2 - Asset Detection: Detection of manholes, gullies, rainwater downpipes, soil stacks, misconnections, and outfalls with confidence grading. Lot 3 - Sewer Inferencing: Semi-/automated inferencing of unmapped sewers, laterals, drains, rising mains, and selected SPSs, achieving ≥80% accuracy.
Capture of 2D, oblique 2D, and 3D georeferenced imagery for 2,484 km² across 71 Sewer Drainage Area Catchments (SDACs), phased delivery by 2028, conducted by manned aircraft.
Contract period: — → 28 February 2030
Detection of manholes, rainwater downpipes, surface water outfalls, gullies, soil stacks, and misconnections, with confidence grading. £5m Product Liability will also be required,
Contract period: — → 28 February 2030
Lot 3 - Sewer Inferencing: Semi-/automated inferencing of unmapped sewers, laterals, drains, rising mains, and selected SPSs, achieving ≥80% accuracy. £5m Product Liability will also be required,
Contract period: — → 28 February 2030
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