Flood Risk Review Report – UoM 25/26 Lanesborough Power Station IRR V0_B 1

Location: Lanesborough Power Station Co. Longford

Unique ID: 265485 (from PFRA database)

Initial OPW Designation APSR AFRR IRR

Co-ordinates Easting: 200500 Northing: 269250

River / Catchment / Sub-catchment River Shannon / Shannon

Type of Flooding / Flood Risk (identify all that apply)

Fluvial non-tidal Fluvial tidal Coastal

Stage 1: Desktop Review

1.1 Flood History (include review of Floodmaps.ie)

River Flow Path

The River Shannon flows from north to south through the town of Lanesborough and past the Power Station, which is situated on the river’s left bank. Lanesborough is immediately upstream of the inlet of Lough Ree.

Flood Event Records

Eight flood records are listed in floodmaps.ie. The main flood risk to the station is from the Shannon.

1.2 Relevant information on flooding issues from OPW and LA staff

PFRA database comments (in italics): OPW Comments Not designated APSR as failed to reach predictive analysis threshold. Power station included as IRR. Power station in separately. Village not in SHA RBD docs. IRR for power station - No evidence for town to be APSR - No strong LA Opinion. No change (Shannon MPW flood mapping can inform as to risk, and could be included as APSR after mapping, if necessary) LA Comments Land flooded Road impassible - primary Some sewer trouble. Shannon problem/solution Meeting / discussion summary comments: OPW comments No comments LA comments No comments

Flood Risk Review Report – UoM 25/26 Lanesborough Power Station IRR V0_B 2

1.4 PFRA Data

1.4.1 PFRA hazard mapping

PFRA mapping available in GIS layer: Yes No

PFRA mapping included on FRR map: Yes No

Type FRI score (if available)

1.4.2 Summary of Principal Receptors

Power_station_Weighted_F-C Total Note: There are additional scores for other assets under the 1ESB_Lanesbrough PFRA database entry.

2500

2654.3

Aspect Clearly IRR Uncertain

Flood History (1.1) X

OPW / LA Information (1.2)

N/A

As comments refer to the town, rather than the IRR

PFRA Evaluation (1.4) X

1.7 Stage 1 Evaluation

Overall Desktop Evaluation

(if any above aspect is uncertain then overall designation is uncertain)

X

Level A Site Visit 1.8 Proposed level of assessment for Stage 2 site visits Level B Site Visit

(refer to summary comment below)

Summary Comments The River Shannon in this locality has a long history of flooding. The PFRA mapping predicts a significant flood risk to Lanesborough Power Station and the surrounding road / infrastructure network. Lanesborough Power Station is confirmed as having sufficiently significant flood risk to warrant designation as an IRR following this desk based assessment. No site visit is warranted in accordance with Jacobs correspondence to OPW dated the 24

th August

2011 (email ref: 147/MH) as the site has a clear flood history, and the PFRA evaluation indicates that the site is at risk.

196500 197000 197500 198000 198500 199000 199500 200000 200500 201000 201500 202000 202500 203000 203500 204000 204500

2660

0026

6500

2670

0026

7500

2680

0026

8500

2690

0026

9500

2700

0027

0500

2710

0027

1500

2720

0027

2500

Revision

FINAL

@ A3Drawn

Oct 04, 2011

32103000

Shannon CFRAM Study

Client

Project

Title

Drawing StatusJob No.Figure No.

Scale

Copyright reservedJacobs UK Ltd95 Bothwell Street, Glasgow, G2 7HX

Includes Ordnance Survey Ireland data reproduced under OSi Licence number EN0021011. Unauthorised reproduction infringes Ordnance Survey Ireland and Government of Ireland copyright, © Ordnance Survey Ireland, 2011.

1:25,000

0 0.5 10.25Km

IRR4

Flood Risk Review Map

LegendAPSR Boundary for CARs onlyHistoric Flooding IncidentsWater bodies mapped from RADARSAT-2 *Hydrometric Gauging StationsEPA River NetworkRail StationsNursing HomesResidential Care for the ElderlySchoolsPorts and HarboursOPW BuildingsHealth CentresGarda StationsHospitalsFire StationsCivil Defence Head QuartersAirports

Rail NetworkRoads (National Roads Authority)Airport LandOPW EmbankmentsHistoric Flood DataArchitectural HeritageUNESCO SitesSpecial Protection AreaSpecial Area for ConservationProposed National Heritage AreaNational Heritage AreaBenefiting Lands

Flood Extents (PFRA, 2010)10% AEP Flood Extent (1 in 10 chance in any given year)1% AEP Flood Extent (1 in 100 chance in any given year)0.1% AEP Flood Extent (1 in 1000 chance in any given year)

AD/SF IB/PSChecked Approved

JCReview

KK/JM

Lanesbrough Power Station

Lanesbrough Power Station

* Data Source - Service Régional de Traitement d’Image et de Télédétection (SERTIT) (acquired on the 5th of December 2009).

The PFRA Flood Extents shown are indicative. They have been developed using simple and cost-effective methods that are suitable for the PFRA. They should not be used for local decision-making or any other purpose without verification.