--- title: "Cynin Wetland Flood Risk Modelling" ocid: "ocds-kuma6s-154610" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-kuma6s-154610" markdown_url: "https://d3tenders.com/contract/ocds-kuma6s-154610.md" json_url: "https://d3tenders.com/contract/ocds-kuma6s-154610.json" source: "Sell2Wales" current_stage: "Tender" buyer: "WEST WALES RIVERS TRUST" published: "2025-08-13" --- # Cynin Wetland Flood Risk Modelling Buyer: WEST WALES RIVERS TRUST Current stage: Tender OCID: ocds-kuma6s-154610 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-kuma6s-154610) [Download OCDS JSON](https://d3tenders.com/contract/ocds-kuma6s-154610.json) ## Summary The West Wales Rivers Trust is initiating a tender process titled "Cynin Wetland Flood Risk Modelling" in collaboration with Carmarthenshire Council. This project, located in St Clears, Carmarthenshire, falls under the "River regulation and flood control works" industry category. The tender process is in the 'tender' stage, focusing on services procurement through an open method. Interested parties must submit their applications before the deadline on 19th September 2025, at 17:00. The initiative involves flood risk modelling services to assess the impact of earth bund removal on flood risks to a cycle path, with subsequent actions based on findings. This tender presents substantial opportunities for consultancy firms specialising in environmental science, civil engineering, and flood risk management. The requirement for detailed flood modelling and potential mitigation strategies invites businesses with expertise in hydrology and environmental planning to contribute towards a sustainable infrastructural solution in the region. Companies with experience in similar public sector collaborations, and those willing to meet specified insurance requirements, are well-suited to compete for this contract, positioning themselves for growth by engaging with local authorities and community improvement projects. ## Notice West Wales Rivers Trust (WWRT) are working with Carmarthenshire Council to explore opportunities for improving biodiversity in a Council owned field bordering the Afon Dewi Fawr, a tributary of the Afon Cynin at St Clears, Carmarthenshire.The site previously contained a tarmac cycle path which bordered the river, however in recent years, due to erosion risk, this path has been moved outside of the field. However, whilst the tarmac has been removed from the old path, its foundations (likely composed of historic dredgings) still remain in the form of an earth bund along the river. The presence and size of this earth bund has been confirmed by a topographic survey of the site.WWRT wish to remove the bund along length of the site by lowering by an average of 20-30cm to take it inline with the adjacent land height. This will let any floodwaters find their own course and exit over the land, increasing the connectivity of the floodplain to the adjacent river. However, the new path is situated in Flood Zone 3 and is known to flood during high tides (frequency of flooding unknown), causing the path to be closed on occasion. WWRT therefore require the provision of flood modelling to determine whether the removal of the earth bund would impact on flood risk to the path.Carmarthenshire County Council have advised that planning permission is not needed for the bund removal but it will be needed for construction of a new bund to protect the cycle path at the top of the site from flooding if this is shown to be necessary / needed within the flood modelling.WWRT require the services of a consultant to deliver the following:1) To carry out flood modelling to assess whether the removal of the earth bund would increase the risk of flooding (tidal and fluvial) to the cycle path.2) If flood risk is shown to increase, to carry out flood modelling to assess whether this risk could be reduced or reversed by the movement of the existing bund, to be rebuilt along the fenceline above the path.3) Provide mitigation recommendations to protect cycle path if modelling demonstrates that flooding will occur with increased frequency or severity.NOTE: To register your interest in this notice and obtain any additional information please visit the Sell2Wales Web Site at https://www.sell2wales.gov.wales/Search/Search_Switch.aspx?ID=154610. (WA Ref:154610) ## Key Details | Field | Value | | --- | --- | | Publication source | Sell2Wales | | Latest notice | https://www.sell2wales.gov.wales/search/search_switch.aspx?ID=154610 | | Notice type | S2W Notice - Website Invitation to Tender Notice | | Procurement type | Standard | | Procurement category | Services | | Procurement method | Open | | Procurement method details | Not specified | | Tender suitability | Not specified | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 13 Aug 2025 | | Submission deadline | 19 Sep 2025 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | Not specified | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | Not specified | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Not specified | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | WEST WALES RIVERS TRUST | | Locality | HAVERFORDWEST | | Post town | Swansea | | Postcode | SA61 2BQ | | Country | Wales | | ITL 1 | TLL Wales | | ITL 2 | TLL4 Mid and South West Wales | | ITL 3 | TLL42 South West Wales | | Local authority | Pembrokeshire | | Electoral ward | Haverfordwest: Portfield | | Westminster constituency | Mid and South Pembrokeshire | | Delivery location | Not specified | ## CPV Codes ### Divisions - 45 - Construction work ### Codes - 45246000 - River regulation and flood control works - 45246400 - Flood-prevention works ## Release History - 13 Aug 2025 at 08:44 - Tender - S2W Notice - Website Invitation to Tender Notice - https://www.sell2wales.gov.wales/search/search_switch.aspx?ID=154610 ## Documents - https://www.sell2wales.gov.wales/Notice/Download/DocumentDownload.aspx?id=AUG535424&idx=1 13th August 2025 - WWRT ITT - Cynin Wetland Flood Risk Modelling - https://www.sell2wales.gov.wales/Notice/Download/DocumentDownload.aspx?id=AUG535424&idx=2 13th August 2025 - Supplementary information - maps and photographs of site - https://www.sell2wales.gov.wales/Notice/Download/DocumentDownload.aspx?id=AUG535424&idx=3 13th August 2025 - Topographic survey of site - https://www.sell2wales.gov.wales/Notice/Download/DocumentDownload.aspx?id=AUG535424&idx=4 13th August 2025 - Cynin Wetlands Terms & Conditions ## Notice URLs - https://westwalesriverstrust.org/ - https://www.sell2wales.gov.wales/Search/Search_Switch.aspx?ID=154610 ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-kuma6s-154610. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-kuma6s-154610.json.