Sewer Mapping
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 w...
Buyer
THAMES WATER UTILITIES LIMITED
Value
£11,992,000
Published
6 Mar 2026
Closes
6 Mar 2026
Procurement details
Source
Find a Tender
Region
Berkshire
Procurement method
Selective
Category
Services
Contract starts
19 Mar 2026
Contract ends
28 Feb 2030
CPV classifications
90491000
Sewer survey services
Lots
Lot 1 Aerial Mapping
£3,511,323
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.
Lot 2 Asset Detection
£1,357,161
Detection of manholes, rainwater downpipes, surface water outfalls, gullies, soil stacks, and misconnections, with confidence grading. £5m Product Liability will also be required,
Lot 3 Sewer Inferencing
£1,127,516
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,
Documents
Unlock document linkTender notice on Find a Tender
10 Sept 2025
Tender notice on Find a Tender
Tender notice · UK4 · Web page
Contract award notice on Find a Tender
6 Mar 2026
Contract award notice on Find a Tender
Award notice · UK6 · Web page
Contains public sector information licensed under the Open Government Licence v3.0.