Coastal erosion in Lewisham, Tasmania, has claimed an unsuspecting victim, with a woman on a morning walk who fell several meters when the land gave out beneath her.

The woman was taken into hospital over concern for her recent hip replacement, she said she is fine but the fall could have been more serious had it happened to a child.

On Tuesday, the state government admitted it had allocated $100,000 for sand scrapping works in Lewisham, but the project had been delayed because of concerns about the effect on aquatic life in the area.