Bits of Nelson's waterfront cliff-face falling onto Rocks Rd has cyclist Bonita Wilkinson concerned someone will be hurt.
NZ Transport Agency regional performance manager Mark Owen says the cliff is being monitored for movement and more work will be done to stabilise it.
Mrs Wilkinson, who started cycling this year, said there were no signs to warn cyclists of the debris that fell into the cycle lane.
"To me it's about preventing an accident before it happens. Every time it rains more comes down. The only reason I've reported it is I could not live with my conscience if something happened."
There were obvious cracks in the side of the cliffs at the end nearest Tahunanui, she said.
She wanted signs to warn cyclists of the danger and more regular sweeping of the debris.
Mr Owen said NZTA welcomed feedback and would look at whether signs were needed.
Generally small rubble fell and contractors cleared it.
The cliff was well monitored, stabilisation work had been done after the December floods 2011 and more work would be done, including rock bolting into the cliff, and covering the cliff face with netting, he said.
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