Award

Westbrook Weir Modelling and Outline Design

ENVIRONMENT AGENCY

This public procurement record has 1 release in its history.

Award

06 Oct 2025 at 13:38

Award Notice
Summary of the contracting process

The Environment Agency has completed the procurement process for the "Westbrook Weir Modelling and Outline Design" contract, primarily falling under the category of environmental services. The procurement was conducted as a call-off from a framework agreement using a selective method, ensuring that the right expertise is leveraged. The awarded contract to WSP UK Limited commenced on 6th October 2025 and is set to conclude on 30th March 2026, with a total project value of GBP 81,662.75. The procurement focused on the South East region of the United Kingdom, specifically involving flood risk modelling and weir designs at the River Wey, demonstrating the contract’s regional significance.

This tender presents numerous opportunities for organisations skilled in environmental services, particularly those with experience in infrastructure and waterway management. SMEs could find substantial growth prospects given the procurement's emphasis on selective tendering and framework agreements, which often favour companies with specialized skills and higher efficiency. Businesses capable of providing flood risk management and environmental consulting can leverage such contracts to expand their portfolio and enhance their presence in regional environmental projects.

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Notice Information

Notice Title

Westbrook Weir Modelling and Outline Design

Notice Description

The Environment Agency is seeking to appoint a Contractor to undertake flood risk modelling and outline designs relating to Westbrook Mill weir on the River Wey (SU9666944205) and its proposed removal. Site Background Westbrook mill has been present for approximately 300 years, and numerous weirs and control structures have been in place maintaining a head of water for its operation. The mill and associated factory have been closed for decades and there is negligible heritage value associated with the site. The weir at Westbrook Mill consists of six 1.5m wide sluice gates in steel frames. There is a difference of 1.3m between the upstream and downstream bed levels, and a maintained upstream water level 1.6m above the weir sill of 36.3m AOD. The side walls downstream of the weir are cast concrete and there is a cast concrete central pier which extends 15m downstream under the road bridge giving access to the complex car park. An access walkway is present over the weir, and the weir is manually operated. The cast concrete 'troughs' formed by the walls and the central island also have a cast concrete bed slab set at approximately 36.2m AOD which functions as a second, shallow weir at low water level conditions. Upstream of the weir the channel is confined between steel sheet pile walls with concrete capping beams for approximately 50m. There are three overspill weirs upstream that feed the Hell Ditch (SU9582944564, SU9630344350, SU9655644244), which rejoins the main river approximately 3km downstream. There is also an informal breach which introduces additional flow into the Hell Ditch (roughly SU9649544320). In 2016, the Environment Agency installed a brush-furnished fish pass at the most-upstream overspill weir, allowing the Hell Ditch to function as a fish migration route bypassing Catteshall and Westbrook weirs on the main River Wey.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-21f10dcc-277e-4012-91bc-2fa8fb0af6e3
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/3b38e84b-a298-417e-88ee-33a5a62ef3b9
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
Award Notice
Procurement Type
Framework
Procurement Category
Services
Procurement Method
Selective
Procurement Method Details
Call-off from a framework agreement
Tender Suitability
SME
Awardee Scale
Large

Common Procurement Vocabulary (CPV)

CPV Divisions

90 - Sewage, refuse, cleaning and environmental services

CPV Codes

90700000 - Environmental services

Notice Value(s)

Tender Value
£81,662 Under £100K
Lots Value
Not specified
Awards Value
£81,662 Under £100K
Contracts Value
Not specified

Notice Dates

Publication Date
6 Oct 20254 months ago
Submission Deadline
12 Sep 2025Expired
Future Notice Date
Not specified
Award Date
5 Oct 20254 months ago
Contract Period
5 Oct 2025 - 30 Mar 2026 1-6 months
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Not Specified
Awards Status
Active
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
ENVIRONMENT AGENCY
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
SW1P 4DF
Post Town
South West London
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI3 Inner London - West
Small Region (ITL 3)
TLI35 Westminster and City of London
Delivery Location
TLJ South East (England)
Local Authority
Westminster
Electoral Ward
St James's
Westminster Constituency
Cities of London and Westminster

Supplier Information

Number of Suppliers
1
Supplier Name

WSP

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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