Through the development of the business case an accurate number properties at risk and their current standard of protection will be calculated. This will be achieved through the creation of a hydraulic model based on topographic information. Objectives The main objectives of the Loxwood FRMS project are described in Table 2. Table : Loxwood FRMS Main Objectives – No Critical Success Factor Measurement Criteria Importance (1-5)* Determination of the number of Accurate calculation of the benefits. properties at risk from flooding through 1 1 hydraulic modelling of the River Lox and the surface water drainage system. Determination if a suitable cost-effective Accurate calculation of short list option option can be implemented to better costs. Low cost measures, as benefits 2 4 protect the local community from may be limited. of flooding. Assess if a suitable FRMS can also Assessment during long list optioneering deliver environmental benefits. to be taken forward to short list if OM4a 3 5 environmental benefits are also achievable. Engage pro-actively with the local Awareness of the community that any community. This is especially important works undertaken will provide some as if the appraisal process cannot find a benefits to future flood resilience even if suitably economically justifiable solution a full FRM scheme is not economically 4 2 the Environment Agency Area PSO justifiable. Team will need to continue to work with the residents to manage flood risk. Engage pro-actively with West Sussex As the scheme develops external County Council, Chichester District contributors are aware of their likely Council and Southern Water to find a required contribution, so these are cost effective solution that can be secured prior to construction. 5 3 delivered. Reduction in possible surface water improvement costs via integration with Southern Water’s maintenance regime. To ensure scheme delivery by obtaining Continued communication with delivery funding from external contributions so partners regarding likely external that the Partnership Funding Score is contributions required. greater than 100% and by maximising Accurate assessment of construction the Flood and Coastal Erosion Risk 6 1 costs. Management Grant in Aid (FCERM GiA) contribution, achieved through Identification of, and commitment from, efficiencies and optimised scheme other external contributors. design. 1 = High importance Figure : National Flood Risk Assessment (NaFRA) Flood Map for Loxwood Figure : Risk of Flooding from Surface Water for Loxwood
Through the development of the business case an accurate number properties at risk and their current standard of protection will be calculated. This will be achieved through the creation of a hydraulic model based on topographic information. Objectives The main objectives of the Loxwood FRMS project are described in Table 2. Table : Loxwood FRMS – Main Objectives No Critical Success Factor Measurement Criteria Importance (1-5)* 1 Determination of the number of properties at risk from flooding through hydraulic modelling of the River Lox and the surface water drainage system. Accurate calculation of the benefits. 1 2 Determination if a suitable cost-effective option can be implemented to better protect the local community from of flooding. Accurate calculation of short list option costs. Low cost measures, as benefits may be limited. 4 3 Assess if a suitable FRMS can also deliver environmental benefits. Assessment during long list optioneering to be taken forward to short list if OM4a environmental benefits are also achievable. 5 4 Engage pro-actively with the local community. This is especially important as if the appraisal process cannot find a suitably economically justifiable solution the Environment Agency Area PSO Team will need to continue to work with the residents to manage flood risk. Awareness of the community that any works undertaken will provide some benefits to future flood resilience even if a full FRM scheme is not economically justifiable. 2 5 Engage pro-actively with West Sussex County Council, Chichester District Council and Southern Water to find a cost effective solution that can be delivered. As the scheme develops external contributors are aware of their likely required contribution, so these are secured prior to construction. Reduction in possible surface water improvement costs via integration with Southern Water’s maintenance regime. 3 6 To ensure scheme delivery by obtaining funding from external contributions so that the Partnership Funding Score is greater than 100% and by maximising the Flood and Coastal Erosion Risk Management Grant in Aid (FCERM GiA) contribution, achieved through efficiencies and optimised scheme design. Continued communication with delivery partners regarding likely external contributions required. Accurate assessment of construction costs. Identification of, and commitment from, other external contributors. 1 1 = High importance Figure : National Flood Risk Assessment (NaFRA) Flood Map for Loxwood Figure : Risk of Flooding from Surface Water for Loxwood
ENVORONMENT%20AGENCY%20BUSINEES%20CASE%20STUDY%20Loxwood_FRM_Scheme_SOC%20FINAL%20v2%200.docx