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CASE STUDIES

Lambourn East LD-36

Property Level Flood Protection Scheme

2019 – 2021

Some 21 properties in various areas of Lambourn were identified by Environment Agency & managed by West Berkshire Council Team to be at risk of flooding.

Client – West Berkshire Council
Following a competitive tendering process Flash Flood Doors Limited was successful in securing the contract under the terms of Joint Contracts Tribunal Minor Works Building Contract 2016 (MW 2016) to provide a full flood mitigation solution for each property including a grade II listed building.

West Berkshire Council commissioned Property Flood Resilience Survey carried out by JBA consulting, combined with Quality Submissions and priced bill of quantities formed the bases of tendering process.

In January 2020 a pre contract meeting was arranged with the client’s representative during which we discussed, fabrication survey delivery program submitted at tender stage, flood mitigation product options, alternative  cost effective solutions, quality customer contact and start date.To accommodate the customers who could not be at the property during the weekdays, Flash Flood Doors Limited, arranged to works 7 days a weeks and late hours.

During the fabrication survey properties were added to the list, which had not been surveyed by JBA, we used the JBA format as a base to complete the additional fabrication surveys.

Fabrication survey appointments were also used to re investigate the causes and routes of flooding, which was then used to reassess mitigation measures and recommend more targeted measures.

We sourced and supplied double the quantity of pumps supplying not only dewatering but puddle sucker pumps, the property owners were informed that pumping ground water through open excavated unsealed sumps and pumping into surface water or foul water drainage would in a long run exacerbate the existing sewage flow problem.

Solution
Upon completion of fabrication survey and homeowner consultations, our findings and proposed mitigation measures tailored for each property, were sent to the client’s representative, having received his approval in early March we programmed the work on the basis of product lead time.

Work commenced early March 2020, we were then faced with COVID-19 lockdown, by the end of March our onsite work ceased for H & S evaluation.

Having reprogrammed the work, site activities resumed early July. The new Health & Safety rules combined with slow and safe working practices did not delay our end of July, 95%  practical completion, with the remainder in abeyance until the resolution of Grade II listed building  planning issues and one venerable homeowners safety concerns, to allow us on the property to complete the work.

Despite the unprecedented difficulties, our team worked very hard to provide a quality solution in the shortest time possible and managed to keep the increase to budget set at pre contract stage to approximately 5% in real terms. This was primarily due to COVID-19 effects on the project.

Property Level Resilience (PLR) for Somerset 2018-2019

Some 19 properties in various areas of Somerset were identified by Somerset County Council’s (SCC) Flood and Water Risk Management (FWRM) Team to be at risk of flooding.

Client –  Somerset County Council
Following a competitive tendering process Flash Flood Doors Limited was successful in securing the contract to provide a full flood mitigation solution for each property.

FWRM Team had outline flood mitigation solution for each property which were arrived through, combination of historical solutions, customer choices and team surveys carried out over a period of few years.

Flash Flood Doors limited carried out a full flood mitigation survey to ascertain the present flood risk to each property and submitted a practical and cost effective flood mitigation solution for the homeowner’s and FWRM team’s approval.

Following the customer’s & client’s acceptance of the solutions, a program of works was drawn up, however due to requirements of planning for Grade II listed building status of some properties the work had to be done in two phases.

Solution
The mitigation measures, ranged from supply & installation of our PAS 1188-1 2014 BSI Kitemarked single and French doors, supply of crated submersible/puddle sucker pump kits for self deployment, Automatic air brick protection, disabled access ramp, flood boards/gates.

Off site fabrication period of three weeks, helped us to complete Phase I of the works in 6 days, commencing on Monday 8th October 2018 and completing on Monday 15th October 2018. Following completion of work on each property the homeowner/Tenant received a bespoke document pack containing full product information, maintenance procedure user manual and guarantee certificates for the mitigation measures installed at their property.

In order to ensure all customers are treated equally and can use the information pack, we have our documents translated and on this project, we were delighted to help a homeowner with vision problem by supplying our user manual/ maintenance handbook in braile.

Following receipt of consent from the planning authority in May 2019 Phase II works commenced with a second survey carried out on 21st May 2019, and was completed in three site visits, two of which had to be programmed for Sunday work, as risks of totally blocking the entrance to the commercial properties during the workdays could not be mitigated.

 

Feedback from the FWRM team
Flash Flood Doors Ltd embraced every request from The FWRM project lead to attend all initial site inspections and selected product installation.  This inclusion was invaluable for the project’s success and learning for future FWRM Team PLR Schemes.  This approach also ensured customer relationship continuity was maintained throughout the project.  Property owners did comment positively on this approach to working in the feedback questionnaire’s and in person post-installation FWRM site visits.

The FWRM Team’s overall experience of working with Flash Flood Doors Ltd was a very positive one.  The Director, Markar Vartanian, was very knowledgeable and flexible in his working methods, his relationship building with the property owners was excellent.  The FWRM Team’s observations of the Installation Team work was one of tidy, thoughtful and quality working practices”.

Waller Drive Newbury West Berkshire 2016 – 2017 

Properties located within the vicinity of Waller Drive Newbury, was identified by West Berkshire District Council to be at risk of flooding, following heavy rainfall and flooding during 2007.

Client – West Berkshire District
West Berkshire District Council appointed independent flood risk consultants, JBA Consulting to carry out PLP surveys at each property considered under the Newbury PLP Scheme.

Following the Survey tendering process carried out by Ardent Consulting Engineers Flash Flood Doors Limited was chosen to supply and install flood mitigation measures identified by the JBA Consulting survey reports.

Solution
We conducted a thorough fabrication survey and consulted the homeowners and tenants identifying the best options available for each of the mitigation measures identified in the initial survey.

Following the survey we reported our findings and program of works to Ardent Consulting and West Berkshire Council. Having received their approval we embarked on fabrication, keeping all parties informed of our progress.

The work on site carried out in 2 phases, commenced on Monday 31st October 2016 with completion and sign off of the second Phase on 21st June 2017.

Communicating with homeowners/tenants and reporting our progress to Ardent Consulting and the Council, resulted in no interruption to homeowners/ tenants daily activities, zero hour delay to site activities and a significant cost saving for the council.

The products used for the project included single and double Flash Flood Doors, full port non return valves, Toilet Bungs, Pump Sump, flood barriers, airbrick protection, , waste pipe Non Return Valves sealing to utility service entry holes, mortar joint repair and application of water repellent to the walls.

United Kingdom Department of Trade link
https://trade.great.gov.uk/case-study/1227/waller-drive-property-level-flood-protection-phase/

East Flanshaw, Wakefield   2011

 June 2007 flood event affected some 1500 properties in Wakefield, Derwent  Grove and Rufford Street in East Flanshaw were amongst the areas devastated by this flood.

Client –  Wakefield Council
Wakefield Council obtained a government grant for property-level flood resilience measures, to protect 16 homes in Derwent  Grove and Rufford Street.

Solution
Property surveys identified various measures which included, installation of Flash Flood Doors, Airbrick replacement, ground floor WC protection from sewer surcharging, service entry protection, mortar joint repair and application of water sealant to the brickwork.

Following our fabrication survey, all the above mentioned measures were put in place, in a 2 week construction program, with positive feedback from the residents and the council.

Cowley Area, Oxford 2010

This area has been prone to flooding particularly Marsh Road, where intense rainfall upstream of Boundary Brook has produce flash flooding, which has arrived without warning and disappeared within 30 minutes.

Client – Oxford City Council
The City Council obtained a government grant for property-level flood resilience measures, to protect 21 homes in Marsh Road, Cowley.

Solution
Property surveys identified number of measures which included installation of Flash Flood Doors. Working closely with the Council and Environment Agency, Flash Flood Doors Limited, carried out a fabrication survey, and installed 39 Flash Flood Doors in 10 a day construction program, with positive feedback from the customers, the Council and the Environment Agency.

United Kingdom Department of Trade link
https://trade.great.gov.uk/suppliers/07217305/flash-flood-doors-limited/