PFRA Database Comments (taken from _ALL_VAL - Post Round Two - MA.mdb): OPW comments No comment in database

Transcription

1 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: 2011s5232 Sheet number: 1 of 4 Site Name: BALLYCONNELL UM Approval: Ross Bryant Name: Ballyconnell County: Cavan HA: 36 Unique ID: Source of Flooding (Fluvial / Tidal): Fluvial Type: AFA Visit By: Mairéad Conlon Date of Visit: 08/09/2011 PFRA Data / Comments (taken from _Final Database): Predictive assessment indicates potentially significant flood risk exists (FRI Total > 250). No strong evidence against inclusion as an AFA. PFRA Database Comments (taken from _ALL_VAL - Post Round Two - MA.mdb): OPW comments No comment in database LA comments Discussed. No objections. Watercourses / Flood Sources: The main river which flows through the town is the Woodford River which has tributaries feeding in from the northwest, named the Dromore, Gortoorland and Muchlagh. There is also a small stream which feeds in from the east called the Rakeelan. Maps: See Flood Risk Review Site Map below. Flood Outlines and Receptors: Ballyconnell has a flood risk index score of 502. All receptors are listed in the table below with the main receptors consisting of residential and commercial properties on the banks of the Woodford, Gortoorland and the Mucklagh Rivers. There is little difference between the 1% AEP and the 10% AEP with approximately 25% of the properties in the list of receptors contain in the 1%AEP. Flood Risk Receptor FRI Score Name Ballyconnell TOTAL_FLUV TOTAL_TIDAL 0 Res_tot_prob_F_S Com_tot_prob_F_C UWWTPLoc_Weighted_F_C 25 Exchange_Weighted_F_C 10 Monument_LV_Weighted_F_E 0.2 Total FRI Score Comment on Flood Outlines: The PFRA outlines have been applied to all watercourses in the area. The outline to the Woodford and Mucklagh Rivers show receptors on the banks and seem to be correct. The outlines on the Gortoorland River may be conservative in places. Defence Assets and Structures: There is a weir and bridge structure on the Woodford River. The weir is large and encompasses the entire width of the river with navigation by pass passage required for boats. The main bridge providing access to the town has a parallel footbridge and both seem sufficiently sized for the river. 2011s5232-Site Assessment - Ballyconnell

2 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 2 of s5232 Site Name: BALLYCONNELL UM Approval: Ross Bryant Environmental Impacts & Opportunities: There are no designated sites of nature conservation interest within, or located in close proximity, to Ballyconnell. There are approximately six monuments within, or located in close proximity, to this site, including a castle, ringfort and barrow. Floodmaps.ie Data: There are 2 flood points in the vicinity of Ballyconnell. These are Flood Id 3225 and 3226 which are mentioned in the Cavan County Council meeting BC8. Derryginny Drain overflows its banks every year after heavy rain. Firebreaks on the mountain has contributed to the flooding problem. Road is liable to flood. Flood Id = 3225 BC9. Carrowmore - River overflows its banks every year after heavy rain. Firebreaks on the mountain has contributed to the flooding problem. Road (N87) is liable to flood. Flood Id = 3226 Other Relevant Information (e.g. web search, SFRA, other OPW studies and supplied data): None found Discussions with Key Stakeholders: Derry O Scanlan was contacted and was able to confirm that he had little information on flood risk to people or property in this area. Key Contacts (local authority, local or community groups): Name Description Tel. Mobile Address Derry O Scanlan Area Engineer dscanlan@cavancoco.ie No local knowledge of previous flooding was found from conversations with locals. However there has been a large amount of recent development in this town. Site Visit Findings: The Woodford River which is the main river flowing through the town is the major source of potential flooding. Receptors include apartments, houses, commercial properties and a telephone exchange. These properties indicated as been at potential flood risk are located adjacent to the bank of the river, have no obvious flood defences and are not elevated. The potential risk to these properties was confirmed on site. 2011s5232-Site Assessment - Ballyconnell

3 SITE ASSESSMENT Job Title: North-West & Neagh-Bann CFRAM Site Name: BALLYCONNELL JBA Job number: 2011s5232 Sheet number: 3 of 4 UM Approval: Ross Bryant Apartments upstream of the bridge on the left bank. Apartments downstream of the bridge on the right bank. There is a plot of land adjacent to the river upstream of the bridge on the right bank which has received planning for 18 three bedroom houses. If these houses are built they will be additional receptors, unless sufficient mitigation measures are employed in the design. The Gortoorlan and the Mucklagh rivers, which are tributaries to the Woodford River, are sources of potential flooding as shown by the predictive PFRA outlines. The receptors here are residential, and no evidence could be found on the site visit to discount them as been at potential flood risk. Summary: The main source of fluvial flooding to Ballyconnell is the Woodford River this is a wide and slow flowing river with many receptors located on its banks without. 2011s5232-Site Assessment - Ballyconnell

4 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: 2011s5232 Sheet number: 4 of 4 Site Name: BALLYCONNELL UM Approval: Ross Bryant On the site visit no evidence was found to suggest any of the receptors were not at risk from flooding therefore the FRI score remains at 502 and Ballyconnell should be included for further review. Final FRR Status: AFA 2011s5232-Site Assessment - Ballyconnell

5 North GORTOORLAN MUCKLAGH SNUGBOROUGH CUILLAGHAN Rakeelan Woodford [Cavan] CUILLAGHAN Dromore KEYPLAN Sligo Roscommon Leitrim Longford Cavan Monaghan Meath Ordnance Survey Licence No. EN Ordnance Survey Ireland / Government of Ireland BALLYCONNELL Flood Risk Review Site Map

6 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: 2011s5232 Sheet number: 1 of 4 Site Name: BAWNBOY UM Approval: Ross Bryant Name: Bawnboy County: Cavan HA: 36 Unique ID: Source of Flooding (Fluvial / Tidal): Fluvial Type: Risk Review Visit By: Mairéad Conlon Date of Visit: 08\09\2011 PFRA Data / Comments (taken from _Final Database): The FRI score for Bawnboy is 574. However it has been highlighted in the PFRA comments that there are likely errors in predictive mapping, and no other strong evidence to indicate that the area is prone to significant flood risk. PFRA Database Comments (taken from _ALL_VAL - Post Round Two - MA.mdb): OPW comments No comment in database LA comments This should not flood or is very unlikely to flood. There are not 339 properties here. There is one post primary school but local knowledge indicates that this is a long way up a hill and should never flood. This should be removed as an AFA. Watercourses / Flood Sources: Fluvial source from the Bawnboy River Maps: See Flood Risk Review Site Map below. Flood Outlines and Receptors: The following table shows the initial list of receptors, which are included in the flood outline of the Bawnboy River. The 1% AEP and the 10% AEP outlines are the same will all receptors included in the 10% AEP. FRI Score FRI Score Name Bawnboy AUTHORITY Cavan HYDRO_AR 36 TOTAL_FLUV 574 TOTAL_TIDAL 0 Res_tot_prob_F_S 255 Com_tot_prob_F_C 69 PostPrimary_Weighted_F_S 250 Total FRI Score 574 Comment on Flood Outlines: The PFRA flood extent is very conservative to the north, the PFRA comments have described it as a likely error in mapping and this would seem a fair assumption. Defence Assets and Structures: There is only one bridge on the river as it passes through the village. This is located in the centre of the village and seems adequately sized. It may become blocked in an extreme flood event although the impact of this would not be as extreme as indicated by the PFRA outlines. 2011s5232-Site Assessment - Bawnboy

7 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 2 of s5232 Site Name: BAWNBOY UM Approval: Ross Bryant Environmental Impacts & Opportunities: There are no designated sites of nature conservation interest within, or located in close proximity, to Bawnboy. There is one monument, which is a ringfort. Floodmaps.ie Data: There is one flood point North of the town which is refer to in the minutes of a meeting of Cavan County council in 2005 BC13. Derrymony - Brackley Lough level rises and floods significant area every year after heavy rain. Road is liable to flood. Flood Id = 3231 Other Relevant Information (e.g. web search, SFRA, other OPW studies and supplied data): None Found Discussions with Key Stakeholders: Derry O Scanlan was contacted and was able to confirm that he had little information on flood risk to people or property in this area. Key Contacts (local authority, local or community groups): Name Description Tel. Mobile Address Derry O Scánlan Area Engineer dscanlan@cavancoco.ie Conversations were held with the locals and they indicated that they have never seen the river flood in the last 15 years and they had no concerns of the possibility of future flood events. Some of the locals spoken to live in houses which were included in the PFRA outline. Site Visit Findings: The local school was included as a vulnerable receptor in the PFRA outline. There were errors suspected in the PFRA outlines and this was confirmed on the site visit. The School is located on raised ground and is unlikely to be effected by flooding. Speaking to employees in the adjacent garage, they were unaware of the river breaching the left bank of the river in the last 15 years. On the left bank of the river there is farm land which is at a lower level than residents on the right bank. 2011s5232-Site Assessment - Bawnboy

8 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: 2011s5232 Sheet number: 3 of 4 Site Name: BAWNBOY UM Approval: Ross Bryant Photo of the School Photo showing lower level right of bank 2011s5232-Site Assessment - Bawnboy

9 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: 2011s5232 Sheet number: 4 of 4 Site Name: BAWNBOY UM Approval: Ross Bryant PFRA outline overextend here PFRA outline to be extend here School Bridge OSi Licence No. EN Recommended Extreme Flood Outline Of the remaining receptors further downstream adjacent the bridge, no evidence was found to indicate that these are not vulnerable to potential flooding. Therefore these houses should remain in the list of vulnerable receptors. All of these are at risk in the 10% AEP PFRA outline but as there is no history of flooding this may be too frequent. Summary: Prior to the site visit, concerns were raised over the accuracy of the PFRA outline in Bawnboy. These concerns were confirmed on the site visit and the outline redrawn to more accurately reflect the topgraphy. As a result, the school (FRI score of 250) and 11 houses (FRI score of 110) north of the town included in the initial list of receptors were removed. The discounting of these receptors reduces the FRI score form 574 to 214. The remaining receptors are at risk in 10% AEP PFRA outline which, as there is not history of flooding, may be too frequent and the FRI score could be reduced further. Therefore Bawnboy should not go forward as an AFA. Final FRR Status: Non - AFA 2011s5232-Site Assessment - Bawnboy

10 North Bawnboy KEYPLAN Sligo Leitrim Cavan Monaghan Ordnance Survey Licence No. EN Ordnance Survey Ireland / Government of Ireland BAWNBOY Flood Risk Review Site Map

11 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: 2011s5232 Sheet number: 1 of 3 Site Name: BLACKLION UM Approval: Ross Bryant Name: Blacklion County: Cavan HA: 36 Unique ID: Source of Flooding (Fluvial /Tidal): Fluvial Type: Risk Review Visit By: Mairéad Conlon Date of Visit: 08/09/2011 PFRA Data / Comments (taken from _Final Database): The PFRA Data, FRI score and comments have concluded that Blacklion is not an AFA but a Risk Review site. The Comments included While there is evidence of moderate risk in this area, there is no strong evidence that the risk is potentially significant. PFRA Database Comments (taken from _ALL_VAL - Post Round Two - MA.mdb): OPW comments No comment in database LA comments No comment in database Watercourses / Flood Sources: The EPA rivers line and the PFRA identify 5 sources of fluvial flooding in the rural area outside Blackloin. These are the Tuam, Mullaghahy, Roo, Loughan and Kiltaglassan Rivers. The Roo River poses the greatest flood risk to the area. Maps: See Flood Risk Review Site Map below. Flood Outlines and Receptors: The FRI score for Blacklion is 231, and the majority of receptors are residential. The 1% AEP outlines and the 10% AEP outlines are similar with all receptors counted in the 10% AEP. FRI Score FRI Score Name Blacklion AUTHORITY Cavan HYDRO_AR 36 TOTAL_FLUV TOTAL_TIDAL 0 Res_tot_prob_F_S Com_tot_prob_F_C 10 Monument_LV_Weighted_F_E 41 Total FRI Score Comment on Flood Outlines: The PFRA outlines have been applied to all watercourses in the area. The outlines can be angular in some places but overall seem to be correct. During the site visit it was found that the Mullaghahy watercourse did not exist in the locations shown and for some sections the Roo River flows underground. This is outlined in greater detail in Site Visit Findings. Defence Assets and Structures: There are several bridge and culvert structures on the watercourses in the Blacklion area. There was no evidence found during the site visit to suggest that these structures pose potential flood risk. 2011s5232-Site Assessment - Blacklion

12 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 2 of s5232 Site Name: BLACKLION UM Approval: Ross Bryant Environmental Impacts & Opportunities: There are no designated sites of nature conservation interest within, or located in close proximity, to this FRR site. There is one monument around this FRR site, which is a ringfort. Floodmaps.ie Data: The historic evidence of flooding appears to be on the Kiltaglasssan/Tuam confluence area which is located close to the lake. BC35. Kiltaglassan 1 Lough Macnean upper level rises and floods significant area every year after heavy rain. The amenity area is liable to flood Flood Id = 3253 BC36. Kiltaglassan 2 River overflows its banks every year after heavy rain. Road is liable to flood. Flood Id = 3254 BC37. Blacklion Two lakes levels and the lakes merge every year after heavy rain. Flood Id = 3255 Other Relevant Information (e.g. web search, SFRA, other OPW studies and supplied data): None found Discussions with Key Stakeholders: Derry O Scanlan was contacted and was able to confirm that he had little information on flood risk to people or property in this area. Key Contacts (local authority, local or community groups): Name Description Tel. Mobile Address Derry O Scanlán Engineer n/a dscanlan@cavancoco.ie Accounts of local ponding and roads flooding were provided though conversation with locals. However apart from these reports local residents didn t convey any great concerns of flooding and its affects on the area. Site Visit Findings: The area identified in the PFRA as being at risk of flooding is not the actual urban development of Blacklion (located to the East) but is likely to be its hinterland. All these receptors were visited on the site visit and confirmed as being potentially at risk of flooding. With the exception of the area furthest west of Blacklion adjacent the school. Although the EPA water framework rivers centre line shows a river to the east of the school, which on the site visit was found not to be there. The area is at a low point and does suffer from poor drainage during heavy rainfall events. However it is not affected by fluvial flooding as indicated by the PFRA outline. Therefore the two receptors adjacent to the school should not be included in the list of receptors. Also noted on the site visit was that the Roo River flows underground for a section shown in the screen shot below. 2011s5232-Site Assessment - Blacklion

13 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 3 of s5232 Site Name: BLACKLION UM Approval: Ross Bryant River flows underground for this section No River found here during site visit OSi Licence No. EN Summary: Prior to the site visit the FRI score for the site was 231, and as no additional receptors were identified and two were removed, Blacklion should not go forward as an AFA. Final FRR Status: Non - AFA 2011s5232-Site Assessment - Blacklion

14 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 1 of s5232 Site Name: BUTLERS BRIDGE UM Approval: Ross Bryant Name: Butlers Bridge County: Cavan HA: 36 Unique ID: Source of Flooding (Fluvial / Tidal): Fluvial Type: Risk Review Visit By: Ross Bryant Date of Visit: 16/09/11 PFRA Data / Comments (taken from _Final Database): Risk Review based on reported 2009 flooding (which was extreme). PFRA Database Comments (taken from _ALL_VAL - Post Round Two - MA.mdb): OPW comments None LA comments Flooded end 09. Total of 4 properties in the village flooded and a number of properties D/S near Radisson Hotel. Also flooded (new houses) approx 4-6 Townland Killygowan. Has this been adequately assessed already? Needs a second look. (See Map) Watercourses / Flood Sources: The Annalee River flows through Butlers Bridge towards the Lough Erne basin. The watercourse is a significant source of flood risk in the area. Maps: See Flood Risk Review Site Map below. Flood Outlines and Receptors: Butlers Bridge did not have a Flood Risk Index score calculated under the PFRA, however it is known that two key receptors were affected by flooding during the 2009 event, the national school (primary school) and the Waste Water Treatment Plant (WWTP) as well as a residential property. The school grounds would be affected by a 10% AEP, the WWTP would also be impacted by an event of this frequency. Comment on Flood Outlines: The PFRA 1% AEP outline appear to slightly underestimate some areas of flooding based on the flooding in November 2009, and the flood outlines have been adjusted and are displayed in the Site Visit Findings section. Defence Assets and Structures: There were no flood defences identified during the site visit. There is the old bridge and new bypass bridge. The latter clearly does not present any blockage risk or failure risk during flood events. However, the older arch bridge represents a potential hydraulic control and blockage risk. There may also be a scour failure risk to this bridge but the consequence of this, in terms of transport links at least, is unlikely to be significant.. Environmental Impacts & Opportunities: Part of the Lough Oughter and Associated Loughs SAC and pnha falls within this AFA site. This SAC is designated for its natural eutrophic lakes and bog woodland habitats. These two habitats are generally of low vulnerability to flooding, being wetland habitats tolerant of periodic inundation. However, impacts on sediment regimes as a result of flood events could impact on the eutrophic lakes. The site is also a SAC for its Otter population. Otter are generally accustomed to flooding, although inundation of a holt with cubs could have a significant impact. Lough Oughter SPA is also located within close proximity to this AFA site. The site is a SPA for several species of wetland bird and waders. The impact of flooding on these SPA species is in general low, although some wading species could be adversely impacted upon by inundation of intertidal feeding and roosting 2011s5232-Site Assessment - Butlers Bridge

15 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 2 of s5232 Site Name: BUTLERS BRIDGE UM Approval: Ross Bryant areas which require populations to move elsewhere. There are four monuments located within, or in close proximity, to this AFA site, including a standing stone and megalithic tomb. The older bridge is also, most probably, of local interest and landscape value. Floodmaps.ie Data: Floodmaps.ie does not include any historic information for Butlers Bridge. Other Relevant Information (e.g. web search, SFRA, other OPW studies and supplied data): A video has been posted on YouTube providing clear indication of the flood extent during the November 2009 event Extracted from the YouTube site: Recent heavy rainfalls in Butlersbridge. Quite a lot of flooding. Images Morning of the 21st Nov Sorry to hear there has been some flooding I believe to Mary Tierney's House across from Boylans, and pumping equipment is working round the clock. Western end of village by N3 Western end of village by N3 Annalee Bridge Upstream view along laneway, near N3 Bridge Upstream view to Annalee Bridge Driveways flooded along laneway by N3 bridge. 2011s5232-Site Assessment - Butlers Bridge

16 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 3 of s5232 Site Name: BUTLERS BRIDGE UM Approval: Ross Bryant Discussions with Key Stakeholders: A meeting was held with Cavan County Council Area Engineer, Paul Mulligan on 16 th September He was able to accompany JBA on site and gain access to the school and WWTP. Paul also provided the following text on flooding in the area: The rising of the Annalee River in Butlers Bridge in November 2009 resulted in the Butlers Bridge Waste Water Treatment Plant being flooded and along two private dwellings. The western bank of the Annalee River was breached and flooded the local primary school playground up to the rear access of the school. The Waste Water Treatment Plant in Ballyhaise was also flooded as the Annalee burst its banks. This flooding was not in isolation but directly resulted in the flooding of Lough Oughter and the Erne Basin from Butlers Bridge, Cavan Town, Crossdoney, Milltown, Killeshandra and Belturbet. Key Contacts (local authority, local or community groups): Name Position Tel Mobile Paul Mulligan Area Engineer pmulligan@cavancoco.ie Site Visit Findings: The level of detail provided by the historic flood information and PFRA provided clear direction for the site visit; it was imperative to verify the reports of flooding at the school and WWTP. The WWTP was confirmed as being flooded by the Area Engineer and is clearly located within the floodplain of the Annalee River. OSi Licence No. EN Photo of WWTP Recommended Extreme Flood Outline - adjacent to the WWTP and the central/south Risk Review area The visit to the national school confirmed that the school yard, astroturf and the general purpose room was inundated during November The depth of flooding in the yard was up to 1m in depth and left the area unusable for some time. It is also noted that the school toilets backed up and flooded. 2011s5232-Site Assessment - Butlers Bridge

17 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: 2011s5232 Sheet number: 4 of 5 Site Name: BUTLERS BRIDGE UM Approval: Ross Bryant View of school yard and Astroturf adjacent to the Annalee River. OSi Licence No. EN Recommended Extreme Flood Outline - for Butlers Bridge, adjacent to the school As well as the above two sites a residential dwelling was flooded as a result of loss of discharge capacity from a pipe draining into the Annalee River, despite the local Fire Service providing a pump, water levels caused considerable damage to the interior. 2011s5232-Site Assessment - Butlers Bridge

18 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 5 of s5232 Site Name: BUTLERS BRIDGE UM Approval: Ross Bryant Residential property flooded in 2009 Summary: Butlers Bridge did not have a Flood Risk Index score calculated under the PFRA, however the confirmed flooding of the school, WWTP and a residential property in 2009 is enough to potentially increase the Flood Risk Index score above 250. A further two residential buildings, a commercial premises and the church have been included for under the revised flood outlines. Although the school buildings are not directly inundated by a 10% AEP event the school grounds are impacted and foul sewerage is known to back up, causing significant damage, as a result the school has been assessed as incurring a FRI score of 250. The WWTP would attract a score of 25 and the residential properties a score of 3, with the church scoring 2.5. The total score could range between approximately 150 and 300. As a result the site should be tentatively recommended as an AFA. Final FRR Status: AFA 2011s5232-Site Assessment - Butlers Bridge

19 Annalee North EGRAMUSH Annalee KEYPLAN Monaghan Leitrim Longford Cavan Louth Ordnance Survey Licence No. EN Ordnance Survey Ireland / Government of Ireland Tullylough BUTLERS BRIDGE Flood Risk Review Site Map

20 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 1 of s5232 Site Name: CAVAN including ANNAGELLIFF UM Approval: Ross Bryant Name: Cavan (including Annagelliff) County: Cavan HA: 36 Unique ID: & Type: AFA & Risk Review Source of Flooding (Fluvial / Tidal): Fluvial Visit By: Ross Bryant Date of Visit: 14/09/11 & 16/09/11 PFRA Data / Comments(taken from _Final Database): CAVAN: Predictive assessment indicates potentially significant flood risk exists (FRI Total > 250). No strong evidence against inclusion as an AFA. ANNAGELLIFF: While there is evidence of moderate risk in this area, there is no strong evidence that the risk is potentially significant, as defined Not an AFA. FRI = Maintain for Risk Review to confirm status. PFRA database comments (taken from _ALL_VAL - Post Round Two - MA.mdb): OPW comments CAVAN: No comment ANNAGELLIFF: No Comment LA comments CAVAN: Lots of the roads here are affected. The damages are not too severe but there is a very high inconvenience factor, especially during the summer months where there is a big fishing tourism trade that can be affected by roads being cut off. ANNAGELLIFF: Potentially remove from Risk review. Confirm with Cavan Co. Co. Watercourses / Flood Sources: The area of assessment for Cavan (which is based on the core LAP settlement boundary) covers a number of satellite villages including Annagelliff. Annagelliff is identified by the PFRA as a separate FRR site, however, in this case it has been included for under the Cavan FRR. Contained within this area is the Cavan River, numerous loughs and small watercourses, all with associated flood probability, consequence and therefore risk. Maps: See Flood Risk Review Site Map below. Flood Outlines and Receptors: Cavan/Annagelliff is affected by a number of different watercourses that drain into the River Cavan (flowing through the centre of the town). The PFRA outlines include a large number of residential and commercial properties as well as a primary school and Garda Station. The total Flood Risk Index score is 3655 and over 3000 of the points are from residential and commercial property and most of the property is located within the 10% AEP outline. In Annagelliff the FRI score is 180 and this is attributable solely to commercial property in the 10% AEP outline. In addition to the school identified as being at risk it appears that there could be other key receptors at risk of flooding and this includes part of the Cavan Institute of Technology Campus and the St Vincent de Paul sheltered housing. Even if a large number of the residential and commercial properties could be screened out, a significant level of flood risk would remain. The detailed PFRA FRI scoring is included below. 2011s5232-Site Assessment - Cavan (incl Annagelliff)

21 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 2 of s5232 Site Name: CAVAN including ANNAGELLIFF UM Approval: Ross Bryant Flood Risk Receptor FRI Score FRI Score Name Cavan Annagelliff TOTAL_FLUV TOTAL_TIDAL 0 0 Res_tot_prob_F_S Com_tot_prob_F_C Primary_Weighted_F_S Garda_Stations_Weighted_F_S 25 0 OPW_LV_Weighted_F_S 10 0 Health_Centre_Weighted_F_S UWWTPLoc_Weighted_F_C C_Exchang_Weighted_F_C 25 0 Monument_LV_Weighted_F_E 10 0 Total FRI Score Comment on Flood Outlines: The PFRA outlines appear to be more extensive than expected in some areas and missing risk in other areas based on the site visit walk over, discussions with local residents and liaison with the Town Engineer. In general it is noted that the 10% and 1% AEP flood outlines are a little closer in extent than expected. The flood outlines have been amended and are displayed in the Site Visit Findings section, never the less, the level of risk in the town and environs is significant. Defence Assets and Structures: A number of informal flood walls exist through the centre of Cavan, protecting property from the Cavan River. The walls are of differing construction and in many cases do not have appropriate construction details such as flapped outfalls or drainage holes. There are many culverts located through the town centre and some of these will be under capacity or prone to blockage. Of particular note is the access structure for the bus depot, the bridge deck is too low and this has reportedly increased upstream levels and exacerbated flooding on Coleman Road (see Discussions with Key Stakeholders section). Environmental Impacts & Opportunities: There are no designated sites of nature conservation interest within, or located in close proximity, to this Risk Review site. There are numerous monuments located within and around this Risk Review site, including ringforts, the school, church and the historic town. There are reports of foul sewage discharge during flood events from a Waste Water Treatment Works (see Site Visit Findings section). The watercourses in the developed area are relatively heavily engineered and, ideally, would benefit from restoration. Floodmaps.ie Data: Floodmaps.ie presents a large number of historic flooding incidents, as quoted below: 1954 flood was severe, newspaper reports BI26. Pollamore at Quinn Direct - Drain overflows its banks every year after heavy rain. Road is liable to flood. Flood Id = 3372 BI27. Pollamore River overflows its banks every year after heavy rain. Flood Id = 3373 BI28. Larragh Crescent, Cavan River overflows its banks after very heavy rain. Not every year. Flood Id = 3374 BI29. Breffni Lane, Cavan Cavan River overflows its banks every year after heavy rain. Flood Id = s5232-Site Assessment - Cavan (incl Annagelliff)

22 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 3 of s5232 Site Name: CAVAN including ANNAGELLIFF UM Approval: Ross Bryant BI30. Railway Road, Cavan Cavan River overflows its banks after very heavy rain. Road is liable to flood and a properties are affected. Not every year. Flood Id = 3376 BI31. Farnham Street, Cavan Basements of houses was flooded from overflow from a culverted river. Occasionally after extreme rainfall. Flood Id = 3377 BI32. Con Smith Memorial Park - River overflows its banks after very heavy rain. Not every year. Flood Id = 3378 BI33. Glenlara, Cavan Swellan Lake level rises and floods significant area after very heavy rain. Not every year. Flood Id = 3379 BI34. Green Lake Green Lake level rises and floods significant area every year after heavy rain. Flood Id = 3380 BT22. Carrickane Cavan River overflows its banks every year after heavy rain. Flood Id = 3406 BT31. Tullylough River Cavan overflows its banks every year after heavy rain. Flood Id = 3415 BT32. Farnham - River overflows its banks after very heavy rain. Flood Id = 3416 BT36. Gartnasillagh River overflows its banks every year after heavy rain. Flood Id = 3421 BT37. Derrycramph River overflows its banks every year after heavy rain. Flood Id = 3422 C14. Latt Road used to flood every year after heavy rain due to inadequate drainage. The surface water network receives water from the Cavan By-Pass. Council has installed larger pipes and alleviated the flooding. Flood Id = 3436 Other Relevant Information (e.g. web search, SFRA, other OPW studies and supplied data): There are many reports of flooding from November 2009 on the internet, most focus on the Lough Erne System and do not concern Cavan Town. Discussions with Key Stakeholders: A meeting was held with Cavan Town Council Engineer, Alan Lyons on 14 th September He was able to provide photographs of the November 2009 event and confirmation of property affected during the flood. Significant flooding was experienced in Coleman Road adjacent to the Bus Station as well as on River Street and the opposite bank where the St Vincent de Paul sheltered accommodation was affected. Flooding here was confirmed by workers met on site. The Bus Eireann bridge across the Cavan River is understood to have a low deck and causes significant afflux as a result. 20 November 2009, Coleman Road and significant property flooded by the Cavan River 2011s5232-Site Assessment - Cavan (incl Annagelliff)

23 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 4 of s5232 Site Name: CAVAN including ANNAGELLIFF UM Approval: Ross Bryant 20 November 2009 Flooding along Coleman Road Houses were also reported as being affected in the Gortnakesh area (the PFRA flood outline has been adjusted and is displayed in the Site Visit Findings section) and flooding caused disruption in Breffni Park. Alan Lyons was also able to call the Cavan Roads Engineer (Seamus McLoughlin) and confirm flood risk exists due to an undersized culvert behind the NCT Test Centre in Annagelliff that leads to localised flooding of the Petrol Station and industrial units nearby. The Quinn Direct car park and N3 were noted as also being affected. Local residents and NCT Test Centre employees were consulted. Key Contacts (local authority, local or community groups): Name Position Tel Mobile Alan Lyons Town Engineer alyons@cavantc.ie Seamus McLoughlin Cavan Roads Engineer Site Visit Findings: The site visit and walkover confirmed much of what was said by the Town Engineer. Flood risk exists in many areas and in November 2009 there was flooding of many properties. Although not flooded during the 2009 event, the PFRA mapping indicates the potential for flooding in and around the Cavan Institute Campus. Here there has been significant new development within the floodplain. 2011s5232-Site Assessment - Cavan (incl Annagelliff)

24 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: 2011s5232 Sheet number: 5 of 9 Site Name: CAVAN including ANNAGELLIFF UM Approval: Ross Bryant Upstream view towards Cavan Institute buildings. As well as the Cavan Institute buildings there is a new HSE Heath Centre that has been constructed in the floodplain, however it utilises the ground floor as a car park with access to the Health Centre at first floor level. The area is displayed below and the PFRA outlines here have been adjusted to reflect the site visit findings. Cavan Institute OSi Licence No. EN Recommended Extreme Flood Outline - around the Cavan Institute. Around Latt there are a number of properties potentially at risk and nearby the Waste Water Treatment Works is affected by high water levels in the Cavan River. It is reported that the pumps become overloaded and sewage can escape into the Cavan River. Workers at the St Vincent de Paul buildings (sheltered accommodation) adjacent to the car park (see figure below) confirmed that the site was flooded in This property houses many vulnerable people and could potentially be classed as having a moderate to extreme vulnerability. 2011s5232-Site Assessment - Cavan (incl Annagelliff)

25 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: 2011s5232 Sheet number: 6 of 9 Site Name: CAVAN including ANNAGELLIFF UM Approval: Ross Bryant St Vincent de Paul OSi Licence No. EN Recommended Extreme Flood Outline - through the centre of Cavan Downstream view on Cavan River to St Vincent de Paul sheltered accommodation (on right bank). Additional flood risk was also reported in the Gortnakesh area and this is represented in the figure below where the flood outlines have been adjusted to extend up a previously un-modelled watercourse. The outlines have also been modified to shrink the flood extent through the main estate. 2011s5232-Site Assessment - Cavan (incl Annagelliff)

26 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: 2011s5232 Sheet number: 7 of 9 Site Name: CAVAN including ANNAGELLIFF UM Approval: Ross Bryant OSi Licence No. EN Recommended Extreme Flood Outline - in Gortnakesh In Annagelliff the site visit and walkover confirmed much of what was said by the Town Engineer and reported under floodmaps.ie. Flood risk exists adjacent to the NCT Test Centre and in the Quinn Direct car park and impacts the N3 as well. In JBA s opinion, the likely flood extent is smaller than that presented in the PFRA outlines and to reflect this, the maps have been adjusted and are displayed below. There are sections of culverting where it is unlikely that overland flow routes will be possible due to the local topography, these are also highlighted. Removal of flood outline required in these areas Under sized culvert by NCT Test Centre and petrol station OSi Licence No. EN Recommended Extreme Flood Outline Annagelliff 2011s5232-Site Assessment - Cavan (incl Annagelliff)

27 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: Sheet number: 8 of s5232 Site Name: CAVAN including ANNAGELLIFF UM Approval: Ross Bryant The culvert behind the NCT Test Centre was confirmed as being prone to blockage and results in an overland flow route that affects the petrol station, industrial units and the N3. Property on the opposite side of the N3 is at a higher level and is not impacted. Quinn Direct and the N3; flood risk identified NCT Test Centre under sized culvert View from NCT Test Centre under sized culvert View by Petrol Filling Station and N3 Summary: Cavan was originally assigned a Flood Risk Score in excess of 3655 and Annagelliff was assigned a FRI score of 180. Amongst the key receptors are a primary school and Cavan IT, accommodation for the vulnerable, a waste water treatment plant and numerous residential and commercial properties. As a result of an amendment to the PFRA flood outlines the FRI score has been re-calculated and a number of commercial (59) and residential properties (26) have been removed, as well as some residential (21) and commercial additions (1). Annagelliff is included within the core LAP settlement (and therefore FRR area) of Cavan, but is listed as a separate FRR site in the PFRA. Individually it was given an initial FRI score of 180 which is attributable solely to commercial property within the 10% AEP outline. Having visited the site and consulted with the Local Authority and local business employees and residents it appears that the level of risk presented in the PFRA outlines was overestimated. The outlines have been adjusted and the FRI score revised to exclude 2011s5232-Site Assessment - Cavan (incl Annagelliff)

28 Job Title: North-West & Neagh-Bann CFRAM JBA Job number: 2011s5232 Sheet number: 9 of 9 Site Name: CAVAN including ANNAGELLIFF UM Approval: Ross Bryant five commercial properties which will reduce the FRI score by 50. The overall adjustment is for a deduction of more than 500 points from the combined FRI score for Cavan (including Annagelliff). As such the combined area has been identified as an AFA and would benefit from more detailed study. Final FRR Status: AFA 2011s5232-Site Assessment - Cavan (incl Annagelliff)

29 N LTA n Ricehill KN HU RA Cava Ouley AN ULT KIN AS G RA UNSHIN RAH O C KA TE E Tully lo ugh Tull ylo an ugh Cav North Swellan _U pper AGH Ki nn LATT yp ot tl e st re am Poles BILLIS BA LLY MA CK INR OE HY BEAG ANNAGE LLIFF Str ag elli ff IS LL BI ey h G o Killymo FARNHAM m lly Ki n oo ug lo am re st en re u lo gh re st am ney lou am gh str e RO R CO SS m re a h st oug en l G re h UVE Cava KI LN KILLY N N AV AR A A LG EBBE n lga co n KEYPLAN Sligo Monaghan Leitrim Cavan AL AC K AN Louth Roscommon Westmeath Longford Meath Galway Dublin Ordnance Survey Licence No. EN Ordnance Survey Ireland / Government of Ireland AG H g illa SWELLAN_LOWER ss Ro Tonymore as rt n Ga DRUM CRA D LIS CAVAN Flood Risk Review Site Map UF F