Kromme River Mouth Conditions Affect Canal Water Levels
Photo Richard Arderne
The mouth of the Kromme River is currently larger and deeper than normal following the recent overflow of the Mpofu Dam.
The significant volume of water that flowed through the river system has altered the shape and depth of the river mouth. As a result, conditions within the canal system have also changed and residents are encouraged to take note of the current situation when planning boating activities.
Lower Water Levels At Low Tide
One of the main consequences of the larger river mouth is that the canals now drain more completely during low tide.
This increased drainage has resulted in canal water levels dropping further than they did before the flood event. In some areas, water levels at low tide are now as much as 30cm lower than previously experienced.
While these changes are a natural consequence of the altered river mouth, they have created additional challenges for boat owners using the canal system.
Increased Risk For Boats
The lower water levels mean that boating at or near low tide has become more difficult.
There is now a greater risk of boat hulls and engines coming into contact with the canal substrate. Such contact can cause damage to vessels and may also disturb the canal floor.
For this reason, boat owners are advised to avoid using the canals at or close to low tide wherever possible. Taking this precaution will help reduce the likelihood of damage to boats while also limiting unnecessary disturbance of the substrate.
Routine Dredging Continues
Routine dredging of the canal system remains ongoing.
However, dredging operations cannot be expected to lower the canal floor significantly below its normal level. Doing so would create an increased risk of damage to canal walls and associated infrastructure.
Dredging therefore continues within the limits required to maintain the canal system while protecting its structural integrity.
Situation Being Monitored
The St Francis Bay Riparian Home Owners Association NPC (SFBRHOA) continues to monitor conditions closely.
The Association remains aware of the impact that the altered river mouth is having on canal water levels and boating activities. Monitoring of the situation is ongoing and residents will be kept informed of any significant developments.
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