3.1 Inundation
The immediate area of river in front of the terraces in the creek shallow with silt and mud and adjacent lock gates.
The lowest ledge of the terrace has water on between eleven hours in small tides to all the tidal cycle in larger tides, while the top of the lowest terrace is covered between in ten hours small(neap) and 27 minutes in large (spring) tides respectively. The top terrace of the three highest point is inundated, between eight and nine hours on neap and spring tides respectively.


Figure 6: cross section of elevation of constructions (heights in CD)
3.2 Biodiversity
Adjacent Site/Comparable Site:
The next nearest site where biodiversity surveys were conducted was Barking Creek, Beckton Sewage Treatment works 2 km down the Roding. However, the salinity is likely to be significantly higher at Beckton and the style of the estuary edge feature is very different (naturalised set back versus an intertidal vegetated terrace). A more representative comparable site may be therefore be Deptford Creek Thanet Wharf which although 11 km up-estuary and therefore less saline is a very sheltered creek location and south east facing in orientation.
Fish:
Fish weren’t measured at the site. See Deptford Creek Thanet Wharf for a comparable site where they were measured.
Botany:
Flora wasn’t measured at the site. See Deptford Creek Thanet Wharf for a comparable site where it was measured. Although flora wasn’t measured by an ecologist at this site, it is notable that buddleia has taken over along the upper terrace on one side.
Invertebrates:
Invertebrates weren’t measured at the site. See Deptford Creek Thanet Wharf for a comparable site where they were measured.
3.3 Geomorphology
100% of the accretable area has accreted with sediment above the design level (Figure 4).

Figure 4: Schematic showing geomorphology and basic ecology.
Contributing reasons for this include:
- Sheltered from both waves and currents.

Figure 5: Mill Pool, River Roding, looking west, before enhancement in 2006. Source: Estuary Edges 2008 document.

Figure 6: Mill Pool, River Roding, close up of the western section of the terraces in summer 2007 (1 ¼ years after construction) showing well established vegetation. Source: Estuary Edges 2008 document.

Figure 7: Mill Pool, River Roding, looking west in Summer 2017 (11 years after construction) showing continued well established vegetation but take over by buddleia in one corner. Source: Environment Agency.

Figure 8: Mill Pool, River Roding, looking east in Summer 2017 (11 years after construction) showing continued well established vegetation but take over by buddleia in one corner. Source: Environment Agency.

Figure 9: Mill Pool, River Roding, looking north west in Summer 2017 (11 years after construction). Source: Jacobs/TEAM2100.