Case Studies - Estuary Edges - The Thames Estuary Partnership

Barking Creek at A13 Frogmore, Grid Reference TQ4441183063

Site Conditions Summary

Salinity (during low fluvial flows)	~9‰ at creek mouth (open estuary) (Wade, Hawes and Mulder, 2017)
Date of construction	2006
Tidal Range	1.6m
Percentage of area accreted above design level	100 %
Degree of exposure to waves:	Low
Degree of exposure to currents:	Medium (including fluvial)
Max wave height
Slope direction	West-South-West
Slope angle	1 in 7 normal to flow (1 in 3 front face of new backing embankment), 1 in 58 parallel to flow.
Average Whole Structure lifespan	< 20 years

Read Barking Creek at Frogmore Case Study >

Barking Creek, Beckton Sewage Treatment Works, Grid Reference TQ4516982496

Site Conditions Summary

Salinity (during low fluvial flows)	~9‰ at creek mouth (open estuary) (Wade, Hawes and Mulder, 2017)
Date of construction	2012
Tidal Range	1.6m
Percentage of area accreted above design level	100 %
Degree of exposure to waves:	Low
Degree of exposure to currents:	Low
Max wave height
Slope direction	Multiple (Creek creation)
Slope angle	1 in 6 normal to created creek, 1 in 50 along created creek bed.
Average Whole Structure lifespan	Not applicable (not engineered)

Read Beckton Sewage Treatment Works Case Study

Barking Creek, Creekmouth, Grid Reference TQ4556981831

1.1 Site Conditions Summary

Salinity (during low fluvial flows)	~9% at creek mouth (open estuary) (Wade, Hawes and Mulder, 2017)
Date of construction	2006
Tidal Range	1.6m
Percentage of area accreted above design level	100%
Degree of exposure to waves:	Medium
Degree of exposure to currents:	Low
Max wave height
Slope direction	Multiple (Creek creation)
Slope angle	1 in 12 normal to created creek, 1 in 29 along created creek bed.
Average Whole Structure lifespan	Not applicable (not engineered)

Read Barking Creek, Creekmouth Case Study >

Battersea Reach, Grid Reference TQ2624075602

Site Conditions Summary

Salinity	<1%
Date of construction	2005
Accretion above design build	<33%
Degree of exposure to waves:	High
Degree of exposure to currents:	High
Max wave height	1.25m
Slope direction	North-North West
Slope angle	1 in 4 normal to flow, horizontal parallel to flow
Average Whole Structure lifespan (Years)	20-50

Read Battersea Reach Case Study >

Dartford Creek Erosion Protection, Grid Reference TQ5351577063

Site Conditions Summary

Salinity (during low fluvial flows)	~15‰ (Wade, Hawes and Mulder, 2017)
Date of construction	2007
Tidal Range	5.9m
Percentage of area accreted above design level	100 %
Degree of exposure to waves:	Low
Degree of exposure to currents:	Medium (inc fluvial currents)
Max wave height	?PLA?
Slope direction	East-South-East
Slope angle	Mudflat: 1 in 3 normal to flow, near horizontal parallel to flow.
Average Whole Structure lifespan	No engineering elements to inspect.

Read Dartford Creek Erosion Protection Case Study >

Deptford Creek, Saxon Wharf, Grid Reference TQ3772477474

Site Conditions Summary

Salinity (during low fluvial flows)	At creekmouth ~4.8‰ (Wade, Hawes and Mulder, 2017)
Date of construction	2009
Tidal Range	6.7 m
Percentage of area accreted above design level	85 %
Degree of exposure to waves:	Low
Degree of exposure to currents:	Medium (fluvuial currents)
Max wave height
Slope direction	North West
Slope angle	Horizontal
Average Whole Structure lifespan	20 to 50 years for steel piles and 20 years for softwood elements.

Read Deptford Creek, Saxon Wharf Case Study >

Deptford Creek, Thanet Wharf, Grid Reference TQ3774177544

Site Conditions Summary

Salinity (during low fluvial flows)	At creekmouth ~4.8‰ (Wade, Hawes and Mulder, 2017)
Date of construction	2009
Tidal Range	6.7m
Percentage of area accreted above design level	79 %
Degree of exposure to waves:	Low
Degree of exposure to currents:	Medium (fluvial currents)
Max wave height
Slope direction	South South East
Slope angle	Horizontal
Average Whole Structure lifespan	20-50 Years

Read Deptford Creek, Thanet Wharf Case Study >

Deptford Creek Vertical Wall Renewal, Grid Reference TQ3763877392

Site Conditions Summary

Salinity (during low fluvial flows)	At creekmouth ~4.8‰ (Wade, Hawes and Mulder, 2017)
Date of construction	1997
Tidal Range	6.7m
Percentage of area accreted above design level	67 %
Degree of exposure to waves:	Low
Degree of exposure to currents:	Medium (fluvuial currents)
Max wave height
Slope direction	East
Slope angle	Horizontal
Average Whole Structure lifespan	20-50 Years

Read Deptford Creek, Vertical Wall Renewal Case Study >

Greenwich Peninsula Terraces North East, Grid Reference TQ3950679965

Site Conditions Summary

Salinity (during low fluvial flows)	~5.5‰ (Wade, Hawes and Mulder, 2017)
Date of construction	1997
Tidal Range	7m
Percentage of area accreted above design level	75 % for eastern section, 65% of central section, 95% for western section.
Degree of exposure to waves:	High
Degree of exposure to currents:	High
Max wave height	1.2m
Slope direction	East-North-East
Slope angle	1 in 9 normal to flow, near horizontal parallel to flow for western and central sections but 1 in 17 parallel to flow for eastern most sections.
Average Whole Structure lifespan	< 20 years

Read Greenwich Peninsula Terraces, NE Case Study >

Greenwich Peninsula Terraces North West, Grid Reference TQ3898580302

Site Conditions Summary

Salinity (during low fluvial flows)	~5 PPT (Wade, Hawes and Mulder, 2017)
Date of construction	1997
Tidal range	7 m
Percentage of area accreted above design level	40 %
Degree of exposure to waves:	High
Degree of exposure to currents:	Medium (inside of meander bend)
Max wave height	1.2 m
Slope direction	North West
Slope angle	Variable: Near horizontal to 1 in 7 normal to flow; Central terrace of 3: 1 in 65 parallel to flow
Average Whole Structure lifespan	0-20 Years

Read Greenwich Peninsula Terraces, NW Case Study >

Limo Peninsula, Grid Reference TQ3922681082

Site Conditions Summary

Salinity (during low fluvial flows)	~5.5‰ at mouth (open estuary) (Wade, Hawes and Mulder, 2017)
Date of construction	Early 2000s (exact date unknown)
Tidal Range	6.6m
Percentage of area accreted above design level	100 %
Degree of exposure to waves:	Low
Degree of exposure to currents:	Medium (including fluvial)
Max wave height
Slope direction	West North West
Slope angle	Near horizontal normal and parallel to flow.
Average Whole Structure lifespan	20-50 Years

Read Limo Peninsula Case Study >

Mill Pool, River Roding, Grid Reference TQ4390083712

Site Conditions Summary

Salinity (during low fluvial flows)	~9‰ at creek mouth (open estuary) (Wade, Hawes and Mulder, 2017)
Date of construction	2006
Tidal Range	1.6m (Half tide weir)
Percentage of area accreted above design level	100 %
Degree of exposure to waves:	Low
Degree of exposure to currents:	Low (open basin reduces fluvial currents)
Max wave height
Slope direction	South East
Slope angle	1 in 7 normal to bank, near horizontal parallel to bank
Average Whole Structure lifespan	Not assessed.

Read Mill Pool. River Roding Case Study >

Point Wharf, Greenwich, Grid Reference TQ3898180300

Site Conditions Summary

Salinity (during low fluvial flows)	~5.2% (Wade, Hawes and Mulder, 2017)
Date of construction	Early 2000s (exact date unknown)
Tidal Range	6.6m
Percentage of area accreted above design level	60 %
Degree of exposure to waves:	High
Degree of exposure to currents:	Medium
Max wave height
Slope direction	West-North-West
Slope angle	1 in 3 normal to flow, 1 in 11 parallel to flow
Average Whole Structure lifespan	20-50 Years

Read Point Wharf, Greenwich Case Study >

Royal Wharf, Eastern Terrace, Grid Reference TQ4099979727

Site Conditions Summary

Salinity (during low fluvial flows)	~7.5‰ (Wade, Hawes and Mulder, 2017)
Date of construction	2014
Tidal Range	6.6m
Percentage of area accreted above design level	60%
Degree of exposure to waves:	High
Degree of exposure to currents:	Medium (straight section of estuary)
Max wave height
Slope direction	South
Slope angle	Near horizontal normal and parallel to flow.
Average Whole Structure lifespan	20-50 Years

Read Royal Wharf, Eastern Terrace Case Study >

Royal Wharf, Western Embayment, Grid Reference TQ4087579704

Site Conditions Summary

Salinity (during low fluvial flows)	~7.5‰ (Wade, Hawes and Mulder, 2017)
Date of construction	2014
Tidal Range	6.6m
Percentage of area accreted above design level	60 %
Degree of exposure to waves:	High
Degree of exposure to currents:	Medium (straight section of estuary)
Max wave height
Slope direction	South
Slope angle	Near horizontal normal and parallel to flow.
Average Whole Structure lifespan	20-50 Years

Read Royal Wharf, Western Embayment Case Study >

Wandsworth Riverside Quarter, Grid Reference TQ2544975300

Site Conditions Summary

Salinity (during low fluvial flows)	~1‰ (Wade, Hawes and Mulder, 2017)
Date of construction	2008
Tidal Range	5.8m
Percentage of area accreted above design level	88%
Degree of exposure to waves:	Medium
Degree of exposure to currents:	Medium
Max wave height
Slope direction	East-North Easterly
Slope angle	1 in 10 at steepest, 1 in 20 as shallowest.
Average Whole Structure lifespan	<20 years

Read Wandsworth Riverside Quarter Case Study >

West India Dock Phragmites Bed, Grid Reference TQ3837979813

Site Conditions Summary

Salinity (during low fluvial flows)	~5.2‰ (Wade, Hawes and Mulder, 2017)
Date of construction	2000
Tidal Range	6.6m
Percentage of area accreted above design level	97%
Degree of exposure to waves:	High
Degree of exposure to currents:	Medium
Max wave height	PLA?
Slope direction	East
Slope angle	1 in 8 normal to flow, near horizontal parallel to flow.
Average Whole Structure lifespan	Not measured.