Speaking to the Local Democracy Reporting Service, the Royal National Institute of Blind People urged the authorities to act “immediately” to fix the issue.
The charity said it was concerned the puddle was affecting some people’s ability to “walk safely and independently” in the area.
Campaigns officer Clay Nash said the flood water blocks access to a signal-controlled pedestrian crossing that allows blind and partially-sighted people to safely cross the road to reach Moorfields Eye Hospital.
One resident said elderly people and those with mobility issues were often being forced to dodge traffic, while many pedestrians were being sprayed with water by passing cars.
The pool of water – often spanning several metres – vanished for months after work was carried out on the roads but returned in July.
Camden Council’s Adam Harrison called for a new plan to tackle the “notorious” puddle.
“For years we have asked TfL to take action to stop the water collecting. It stops people from crossing safely at this busy corner next to Euston Station and risks them getting soaked.”
