Forteviot (Potentially Vulnerable Area 08/15)

Local Plan District Local authority Main catchment Tay Perth and Kinross Council River Earn

Summary of flooding impacts Summary impacts of flooding At risk of flooding

• <10 residential properties

• <10 non-residential properties • £15,000 Annual Average Damages

(damages by flood source

shown left)

Summary of objectives to manage flooding

Objectives have been set by SEPA and agreed with flood risk management authorities. These are the aims for managing local flood risk. The objectives have been grouped in three main ways: by reducing risk, avoiding increasing risk or accepting risk by maintaining current levels of management. Objectives

Many organisations, such as Scottish Water and energy companies, actively maintain

and manage their own assets including their risk from flooding. Where known, these

actions are described here. Scottish Natural Heritage and Historic Environment Scotland work with site owners to manage flooding where appropriate at designated environmental and/or cultural heritage sites. These actions are not detailed further in the Flood Risk Management Strategies.

Summary of actions to manage flooding The actions below have been selected to manage flood risk.

Flood Natural flood New flood Community Property level Site protection protection management warning flood action protection plans scheme/works works groups scheme Actions

Flood Natural flood Maintain flood Awareness Surface water Emergency protection management warning raising plan/study plans/response study study

Maintain flood Strategic Flood Planning Self help Maintenance protection mapping and forecasting policies scheme modelling

177 Section 2 Tay Local Plan District Forteviot (Potentially Vulnerable Area 08/15)

Local Plan District Local authority Main catchment Tay Perth and Kinross Council River Earn

Background

This Potentially Vulnerable Area is 29km2 The majority of flood damages are (shown below). It is situated in the lower caused by river flooding. reaches of the River Earn catchment and includes Forteviot and Forgandenny. There are fewer than 10 residential and non-residential properties at risk of flooding. The Annual Average Damages are approximately £15,000.

River 85%

Coastal 2%

Surface water 13%

Figure 1: Annual Average Damages by flood source

Summary of flooding impacts

Work carried out since the National Flood Risk Assessment in 2011 has concluded that the risk of flooding in this Potentially Vulnerable Area is now relatively low. The designation of this Potentially Vulnerable Area will be reviewed in the next flood risk management planning cycle.

The main flood risk in this area is concentrated around small areas of the railway line to the north of Forgandenny.

The risk of flooding to people, property, as well as to community facilities, utilities, the transport network, designated sites and agricultural land is summarised in Table 1.

The damages associated with floods of different likelihood are shown in Figure 2. Surface water damages may be under-represented in Figure 2 due to limitations in the available modelling output. For this Potentially Vulnerable Area the highest damages are to agricultural land followed by damages to roads.

The location of the impacts of flooding is shown in Figure 3.

The figures presented for Annual Average Damages include damages to residential properties, non-residential properties, transport and agriculture.

Tay Local Plan District Section 2 178 1 in 10 1 in 200 1 in 1000 High likelihood Medium likelihood Low likelihood Residential properties <10 <10 <10 (total 2,600) Non-residential properties <10 <10 <10 (total 90) People <10 <10 <10 Community 0 0 0 facilities Utilities assets 0 0 0 2 A roads, 1 B road 2 A roads, 1 B road 2 A roads, 1 B road at 10 locations at 10 locations at 10 locations

Transport links 2 Railway routes at 2 Railway routes at 2 Railway routes at (excluding minor 10 locations: 10 locations: 10 locations: roads) Perth to Thornton Perth to Thornton Perth to Thornton Junctions Junctions Junctions Dundee to Dunblane Dundee to Dunblane Dundee to Dunblane Environmental designated 0 0 0 areas (km2) Designated cultural heritage 4 4 4 sites Agricultural land 2 2.8 3.4 3.5 (km )

Table 1: Summary of flooding impacts

£250,000

£200,000

Agriculture £150,000 Vehicles Roads

Damages £100,000 Non-residential Residential £50,000

£0 1 in 10 1 in 50 1 in 100 1 in 200 1 in 1000

Figure 2: Damages by flood likelihood

179 Section 2 Tay Local Plan District

Figure 3: Impacts of flooding

History of flooding

In January 1993 hundreds of properties flooded in Perth and Kinross and surrounding areas from the River Earn with over £20 million of damage.

Tay Local Plan District Section 2 180 Objectives to manage flooding in Potentially Vulnerable Area 08/15

Objectives provide a common goal and shared ambition for managing floods. These objectives have been set by SEPA and agreed with flood risk management authorities following consultation. They were identified through an assessment of the underlying evidence of the causes and impacts of flooding. Target areas have been set to focus actions; they do not necessarily correspond to areas at risk in SEPA’s flood map. The objectives below have been set for Forteviot Potentially Vulnerable Area.

Target area Objective ID Indicators within PVA Applies across Avoid an overall increase in flood risk 8001 • <10 non-residential Tay Local Plan properties District • £15,000 Annual Average Damages Applies across Reduce overall flood risk 8041 • <10 non-residential Tay Local Plan properties District • £15,000 Annual Average Damages Applies across Organisations such as Scottish Water, Tay Local Plan energy companies and Historic District Environment Scotland actively maintain and manage their own assets, including the risk of flooding. These actions are not detailed further in the Flood Risk Management Strategies.

181 Section 2 Tay Local Plan District Actions to manage flooding in Potentially Vulnerable Area 08/15

Actions describe where and how flood risk will be managed. These actions have been set by SEPA and agreed with flood risk management authorities following consultation. Selection of actions to deliver the agreed objectives was based on a detailed assessment and comparison of economic, social and environmental criteria. The actions shaded and then described below have been selected as the most appropriate for Forteviot Potentially Vulnerable Area.

Selected actions

Flood Natural flood New flood Community Property level Site protection protection management warning flood action protection plans scheme/works works groups scheme

Flood Natural flood Maintain flood Awareness Surface water Emergency protection management warning raising plan/study plans/response study study

Maintain flood Strategic Flood Planning Self help Maintenance protection mapping and forecasting policies scheme modelling

Action (ID): STRATEGIC MAPPING AND MODELLING (80410016)

Objective (ID): Reduce overall flood risk (8041)

Delivery lead: SEPA

Status: Not started Indicative delivery: 2016-2021

Description: SEPA will seek to incorporate additional surface water data into the flood maps to improve understanding of flood risk. Approximately 900km² of improved surface water data is currently available within this Local Plan District. SEPA will seek to develop flood mapping in the Lower Earn area (from Forteviot Bridge to the River Tay confluence) to improve understanding of flood risk. The extent and timing of improvements will depend on detailed scoping and data availability.

Action (ID): MAINTAIN FLOOD WARNING (80410030)

Objective (ID): Reduce overall flood risk (8041)

Delivery lead: SEPA