Case study:Lower River Roding Regeneration Project

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Location: 51° 31' 41.59" N, 0° 4' 48.90" E

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Project overview

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Status	Complete
Project web site
Themes	Habitat and biodiversity, Social benefits
Country	England
Main contact forename	Toni
Main contact surname	Scarr
Main contact user ID	User:Ascarr
Contact organisation	Environment Agency
Contact organisation web site	http://www.environment-agency.gov.uk
Partner organisations
This is a parent project encompassing the following projects	Barking Creek near A13, Barking Creekmouth, Cuckolds Haven Nature Area, Mill Pool

Barking Barrier

Project summary

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This project was the first in Thames Region to be delivered by the Environment Agency using funding from the Office of the Deputy Prime Minister’s (ODPM, now DCLG) Sustainable Communities Fund.

In May 2004 we submitted a bid to the ODPM for £1million to undertake a series of environmental enhancements along the River Roding in its lower reaches where it passes through the London Boroughs of Barking & Dagenham and Newham. The funding bid was approved in October 2004 and the project had to be delivered by the end of the funding period in March 2006. A number of environmental and amenity enhancements were delivered by this project. These included improved habitat for wildlife (including provision of Biodiversity Action Plan (BAP) habitats), improved access to waterside areas, new seating/viewing areas, retreated and renewed flood defences and increased flood storage capacity.

This is an area of London where development has historically lead to the degradation of habitats along the River Roding and its tidal confluence with the Thames. It is therefore important that BAP habitat such as saltmarsh and mudflat is restored to the Creek.

BACKGROUND The River Roding is a tributary of the River Thames. It rises to the north east of London and flows south through East London, through and along the boundary of a number of London Boroughs, before joining the River Thames in Barking. The lower reaches of the River Roding are tidal and the land adjacent to the River Roding throughout the project area is protected from tidal and fluvial flooding by flood defences. In addition to these defences the Barking Barrier protects the area from extreme high tides. This barrier is part of the Thames tidal defences. The Barking Barrier is situated at the confluence of the River Thames and the River Roding.

The Lower Roding Regeneration Project covers 4.5km of the River Roding where it flows through the London Boroughs of Barking and Dagenham and London Borough of Newham, between grid references TQ 436848 and TQ 458816.

The lower reaches of the River Roding are extremely urbanised and many of the riverside areas are of low environmental quality with poor aesthetic appeal and are difficult to access. Infrastructure barriers currently make it a difficult landscape to easily navigate and enjoy. These barriers include a railway line crossing and the A13 trunk road, creating east-west barriers, and the A406 North Circular Road running parallel to but set back from the west bank of the river.

Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment

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Site

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Name	Barking Creek
WFD water body codes	GB530603911402
WFD (national) typology	Intertidal
WFD water body name
Pre-project morphology	Estuary (tidal)
Reference morphology
Desired post project morphology
Heavily modified water body	Yes
National/international site designation
Local/regional site designations
Protected species present	Yes
Invasive species present	Yes
Species of interest	European eel (Anguilla anguilla), Japanese knotweed (Fallopia japonica), sea bass (Dicentrarchus labrax), flounder, phragmites
Dominant hydrology	Tidal
Dominant substrate	Estuarine mud
River corridor land use	Urban
Average bankfull channel width category
Average bankfull channel width (m)
Average bankfull channel depth category
Average bankfull channel depth (m)
Mean discharge category
Mean annual discharge (m3/s)
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)

Project background

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Reach length directly affected (m)	45004,500 m <br />4.5 km <br />450,000 cm <br />
Project started	2004/05/01
Works started	2005/10/01
Works completed	2006/03/31
Project completed	2006/03/31
Total cost category	1000 - 5000 k€
Total cost (k€)	1,0001,000 k€ <br />1,000,000 € <br />
Benefit to cost ratio
Funding sources	Environment Agency, Office of the Deputy Prime Minister’s (now DCLG) Sustainable Communities Fund

Cost for project phases

Phase	cost category	cost exact (k€)	Lead organisation	Contact forename	Contact surname
Investigation and design
Stakeholder engagement and communication
Works and works supervision
Post-project management and maintenance
Monitoring

Supplementary funding information

In May 2004 we submitted a bid to the Office of the Deputy Prime Minister’s for £1million to undertake a series of environmental enhancements along the River Roding in its lower reaches where it passes through the London Boroughs of Barking & Dagenham and Newham. The funding bid was approved in October 2004 and the project had to be delivered by the end of the funding period in March 2006.

Reasons for river restoration

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Mitigation of a pressure	Flood and coastal erosion protection
Hydromorphology	Structure & condition of intertidal zone, Channel pattern/planform
Biology	Fish: Age structure, Macrophytes
Physico-chemical
Other reasons for the project	Community demand, Landscape enhancement

Measures

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Structural measures
Bank/bed modifications	construction of new intertidal area
Floodplain / River corridor
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)	New river information panel, Improved public access
Other

Monitoring

Hydromorphological quality elements

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quality elements

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative

Biological quality elements

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quality elements

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Any other monitoring, e.g. social, economic

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Monitoring documents

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Image gallery

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File:A13

A13 during works

File:A13 post

A13 post works

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summary report

Additional links and references

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Link	Description

Supplementary Information

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Case_study:Barking Creekmouth

• Tidal backwater creating two areas of BAP habitat: 0.1ha tidal mudflat habitat and 0.9ha of saltmarsh habitat.
• New site entrance
• Two seating/viewing areas with site information boards
• Retreated flood defence providing approx. 15,000m3 additional storage
• 310m new footpath

Case_study:Baking Creek near A13

• Retreat and renewal of a 50m section of flood defence providing approximately 2000m3
• Creation of approx. 390m2 of BAP habitat (including mudflat and saltmarsh) at the site

Case_study:Cuckolds Haven Nature Area

• Create riverside seating area and info boards
• New site entrance
• 130m new footpath

Case_study:Mill Pool

• 3-level intertidal terracing of 30m riverbank
• Redesigned seating area