Comment

Representation ID: 22202

Received: 16/03/2020

Respondent: Environment Agency (Eastern Region)

There are many sites within Norwich which are adjacent to the River Wensum (GNLP2137, GNLP0409R, GNLP0360, GNLP0377, GNLP0401, GNLP0068, GNLP3053), firstly we need to ensure that SuDS within the development are sufficient to protect the water quality of the River Wensum and secondly any opportunities to improve riparian habitat to mitigate against the impacts of the development would help us to secure improvements necessary to meet good WFD status and help ensure that the development does not cause any deterioration.

GNLP3053
The vast majority of the site is Flood Zone 1. There is a very small area to the north east of the site, adjacent to the river which is Flood Zone 3 now and in the future. Therefore the sequential approach must be applied to avoid built development within this small area of flood zone to allow it to continue to provide flood storage.
The proposed bridge will need to be designed to be above the 1% flood level including 35% climate change to ensure that it does not obstruct flood flows or increase flood risk elsewhere. A Flood Risk Activity Permit must be obtained for the proposed bridge and any works within 8m of the main river Yare.