ASEA Ecology Mitigation and Flood Defence Project

Construction Gallery

Aust Wharf Road Area

Aust Wharf Road - March 2018
Excavation adjacent to the existing flood defence wall - January 2021
The completed flood wall, consisting of printed concrete panels with a natural stone cladding pattern - September 2021
Flood defence wall, facing onto the estuary, with built-in oak habitat shelves - September 2021
Construction of flood gate structure Aust Jetty - March 2022
Construction of flood defence walls with access maintained to Aust Cliff - March 2022
Cobble reinstatement Aust Pier -
July 2022
Flood gate installation on access to Aust Cliff - November 2022
Footpath Reinstatement Aust Wharf Road - October 2022
Wet test on flood gate on access to Aust Cliff - February 2023
Surfacing reinstated and road markings - June 2023

Passage Road Area

Passage Road embankment prior to works starting - January 2020
Ground investigation - September 2020
Drainage ditch being excavated between flood embankment and Passage Road - May 2022
Finishing works to maintenance access track on flood embankment at Passage Road
Surfacing to Passage Road Flood Ramp - October 2022
Grass cut on flood embankment - June 2023
Passage Road Embankment after seeding - November 2022
Road markings and traffic signs - August 2023
Passage Road Flood Gate - January 2023
Hedgerow maintenance - September 2023
Passage Road Embankment - Headwall installation - April 2023

Cake Pill Outfall Structure

Existing outfall structure at Cake Pill - March 2018
March 2021
Backfill being placed on either side of the northern transition wall - May 2021
Maintenance access tracks and access steps - May 2022
Fencing installed at Cake Pill Outfall - February 2023
Fencing installed at Cake Pill Outfall - February 2023
Fencing installed at Cake Pill Outfall - February 2023

Northwick Warth Flood Embankment

Fill being loaded into dumper from stockpile area - April 2021
Fill material being placed to construct earth flood embankment - May 2021
Placing of fill and compaction - June 2021
Construction of maintenance tracks and footpath along Northwick flood embankment - August 2022
Preparing area for tree planting - October 2022
Preparing area for tree planting - October 2022
Maintenance tracks and footpath - October 2022
Flood embankment grass cut - June 2023

Chestle Pill Outfall

Chestle Pill prior to the start of works
Installation of transition wall - June 2021
The height of the existing structure has been raised - September 2021
Improved flood defences - August 2022
Maintenance access tracks and fencing - March 2023
Maintenance access platform - April 2023
Fencing replaced - August 2023

Cotteralls Pill Outfall

Piling - July 2021
Base slab concrete pour - September 2021
Base slab reinforcement - September 2021
Piling - September 2021
Walls - October 2021
Improved flood defences - August 2022
Access platform - April 2023

New Passage Flood Defence Wall

Construction of a temporary access track - June 2021
Construction of a temporary access track - June 2021
Backfill being placed on the estuary side of the flood defence wall. The glass panels will be installed on the new flood defence wall - September 2021
Installation of hybrid glass panel flood defence panel - February 2022
Installed section of hybrid glass panel flood defence - February 2022
IMG_324-scaled-2803
Placing of rock armour to protect new flood gate at New Passage
Construction of concrete structure to house flood gate
Surfacing reinstated near flood gate 4 - October 2022
Maintenance access track and topsoil reinstated - October 2022

Severn Beach to Chittening

Existing flood defence berm and revetment - March 2018
Topsoil being stripped from the existing embankment - March 2021
Flood defence wall installed - September 2021
Severn Beach South - existing chicane removed - March 2023

New Pill Outfall

Existing outfall structure - February 2021
Excavating to formation - October 2021
Insitu concrete wall constructed south side - November 2021
Precast wall north side - November 2021
Raising existing outfall height - December 2021
Maintenance access stairs - March 2022
Aerial-shot - August 2022
Handrail installed - June 2022
Installing eel retarder springs - March 2023
Fencing installation - March 2023

New Pill Sheet-Piled Defence Wall

Prior to works commencing - November 2019
Area following vegetation clearence - March 2021
Installation of sheet pile flood defence wall - September 2021
Footpath and drainage complete - March 2022
Habitat shelves attached to sheet piled flood defence wall - December 2022

Chittening Warth Flood Embankment

Placing of fill to raise earth flood embankment - June 2022
Water supplied by BMM to allow continued grazing of Warth during construction - July 2022
Maintenance access track August 2023
Safety barrier to protect pipelines August 2023

Mitchells Salt Outfall - Chittening Warth

Chittening Warth prior to works starting - January 2021
Concrete blinding placed to formation of North transition wall - November 2021
Construction of North transition wall - December 2021
Construction of North transition wall - February 2022
Mitchells Salt Outfall improved flood defences - April 2023
Flap valve winch installation - September 2023
Mitchells Salt Outfall - Maintenance access stairs installation October 2023
Mitchells Salt Outfall - Maintenance access track turning area - November 2023
Mitchells Salt Outfall - Maintenance access track - November 2023
Mitchells Salt Outfall - Maintenance access stairs - November 2023

The Outfall Pipelines

Constructing flood defence structure - February 2022
Flood defence wall cast around pipelines - April 2022
Flood defence wall cast around pipelines - April 2022
Concrete flood defence structure - August 2022
Concrete flood defence structure - August 2022
The Outfall Pipelines - RC wall to sheet piled wall connection - January 2023
The Outfall Pipelines - RC wall to sheet piled wall connection - January 2023

Avonmouth Docks Fuel Depot Sheet-Piled Defence Wall

Ground investigation along length of proposed sheet-piled flood defence wall - June 2021
Temporary bridge installation for access during piling - September 2021
Start of sheet-piled flood defence wall installation - February 2022
Sheet piling progressing north - March 2022
Avonmouth Docks Fuel Depot Sheet Piled Wall - Safety Barrier - July 2022
Avonmouth Docks Fuel Depot Sheet Piled Wall - Sealing Lifting Eyes - July 2022
Avonmouth Docks Fuel Depot Sheet Piled Defence Wall - Maintenance access track - August 2022

Avonmouth Docks Holesmouth Outfall Structure

Existing outfall structure - Dec 2019
Start placing rock armour - June 2022
Forming Maintenance Access track - August 2022
Vehicle restraint barrier installed along length of maintenance access track adjacent to sheet piled flood defence wall - April 2023
Vehicle restraint barrier installed along length of maintenance access track adjacent to sheet piled flood defence wall - April 2023
Access steps - October 2022
Kerbs placed on access track - January 2023
Handrail placed on access steps - Jan 2023
Holesmouth Outfall improved maintenance access - April 2023

Avonmouth Docks Kings Weston Maintenance Access

Clearing existing material - Oct 2022
Placing Rock Armour - Oct 2022
Stair Plinths
Place concrete to access ramp
High Tide - Feb 2023
Precast Stairs installed - March 2023
Handrail installation - April 2023
Kings Weston Outfall improved maintenance access - April 2023
Access track and flood defence wall - October 2023
Access Gates - October 2023

Avonmouth Docks River Avon Sheet Piled Flood Defence Wall​

Unexploded ordnance proving trench ahead of piling works - March 2022
Coring to remove obstructions ahead of piling - May 2022
Sheet piling along the River Avon - May 2022
Sheet piled flood defence wall installation - August 2022
Maintenance Access Path - March 2023
April 2023
Avonmouth Docks River Avon Precast Concrete Flood Defence Wall - handrail installation July
Avonmouth Docks River Avon Sheet Piled Flood Defence Wall - Legato Block tie in towards dock gates - July 2023
Sheet pile to precast wall transition - June 2023
Access stairs - August 2023
Sheet pile to precast wall transition - June 2023

Avonmouth Docks River Avon Precast Concrete Flood Defence Wall

Temporary flood defence constructed - July 2022
Concrete blinding placed as working surface for placing of precast concrete panels
Precast flood defence wall installation along River Avon - September 2022
Sandbag Headwalls - May 2023
Topsoil Reinstatement - February 2023
April 2023
Handrail installation July 2023

Avon Riverside Industrial Estate

Existing flood embankment along River Avon - January 2022
Improvements to flood embankment - February 2022
Improved flood embankment with maintenance access path - February 2022

Lamplighter's Marsh

Vegetation clearence - December 2019
Trial holes to locate existing services - October 2021
Installation of filter drain - March 2022
Placing of fill material to the earth embankment - August 2022
Precast concrete flood defence wall installation - October 2022
Precast concrete flood defence wall units - February 2023
Precast concrete slabs placed to protect fuel pipelines - February 2023
Flood gate - April 2023
Maintenance Access Track and Palisade Fence - April 2023
Footpath reinstatement - May 2023
Vehicle barriers - August 2023
Flood embankment topsoil preperation - September 2023

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