Rise Without Protection | Crecida sin defensa

By El Deber:

River Yapacaní: environmentalist denounces lack of preventive action despite “extraordinary rise”

Río Yapacaní: ambientalista denuncia falta de acción preventiva pese a "crecida extraordinaria"

Drone images the day after the surge | Photo: Román Vitrón

The recent swelling of the Yapacaní River exposed the fragility of the riverbanks and put gas pipelines, high-voltage lines, the Santa Fe treatment plant, and homes in the cabin area of this port at risk. This was denounced by environmentalist and engineer Román Vitrón.

The recent rise of the Yapacaní River, recorded on Monday (November 17) and classified as one of the most extreme in recent years, has endangered strategic infrastructure, homes, and agricultural properties in the municipalities of San Carlos and Yapacaní. This was warned by environmental engineer and activist Román Vitrón, who inspected the area on Friday afternoon and documented the damage.Río Yapacaní: ambientalista denuncia falta de acción preventiva pese a "crecida extraordinaria"

Cabin sector of Puerto Santa Fe | Photo: Román Vitrón

According to Vitrón, the rise (triggered by heavy rains in the Valles cruceños) caused a sudden overflow that reached nearly 7 meters in height beneath the bridge, collapsing riverbanks, altering the course, and sweeping away entire plots.

The rise has further weakened the riverbanks because the sediment that accumulates in the middle—left behind by previous floods—caused the formation of a meander,” the environmentalist explained.

Critical infrastructure at immediate risk

During the inspection, Vitrón confirmed that:

  • YPFB gas pipelines, suspended across the Yapacaní bridge, are now “hanging” due to bank collapse.
  • The footings of the twin bridge are already exposed from soil loss.
  • CRE high-voltage poles are at risk as they hang from the riverbank at both ends of the bridge.
  • ISA Bolivia’s towers are now standing in the middle of the riverbed.
  • Further downstream, two high-voltage towers now sit within the river’s sandbar, despite previously being far from the channel.
  • The Santa Fe wastewater treatment plant, located on the San Carlos side, has gone from being 300 meters away from the river to only 200.

“Imagine if those ducts had ruptured and the rise had advanced further. Luckily, in that area it didn’t move forward, but instead shifted 100 to 200 meters upstream, forming a meander,” said the environmentalist. The meander, Vitrón explained, is a pronounced curve that diverts the current sideways.

Affected properties and families

The most impacted area is the cabin zone of Puerto Santa Fe, where between 20 and 30 families were affected by water entering their homes. One of the most heavily affected, Johnny Cruz (who assisted Vitrón during the inspection with his boat), saw his cabin completely disappear at the moment of the surge. After the “wave,” his home was left covered in mud. Río Yapacaní: ambientalista denuncia falta de acción preventiva pese a "crecida extraordinaria"

Those most affected are the cabin owners of Santa Fe | Photo: Román Vitrón

“The overflow filled the houses, many people had their belongings soaked. The one who suffered the most was this man, Mr. Johnny Cruz—water reached almost to the roof of his cabin,” he recounted. “Among the cabin residents of the port—like I said, about 20 to 30 families who live off tourism in that area, selling food—they told me that neither the mayor of San Carlos nor any risk-management unit has shown up to carry out an inspection,” the environmentalist added.

He recalled that a similar event occurred in October 2005, when the river swept away two blocks of homes after forming a meander upstream. “The river is repeating the same behavior,” he said.

Lack of defenses and institutional abandonment

Río Yapacaní: ambientalista denuncia falta de acción preventiva pese a "crecida extraordinaria"

Area of the Santa Fe wastewater treatment plant | Photo: Román Vitrón

Vitrón criticized the fact that neither Yapacaní nor San Carlos has implemented river defenses, despite the Law on Aggregates (Law Nº 3425) assigning municipalities the responsibility to manage river extraction and allocate part of those resources to protective works. He also mentioned the Risk Management Law (Law Nº 602), which “grants authority to all three levels of government to intervene.”

“This law establishes that a management plan for the river basin should have been made. And I believe neither municipality has developed it yet. A general basin plan for this river is required under the Law on Aggregates. These are matters that they will have to address later, always with the goal of protecting us,” he said.

Vitrón also pointed out that, as of the inspection date, November 21:

  • Searpi has not carried out a technical inspection of the area as of his visit (November 21–22).
  • The municipalities have only addressed immediate emergencies, without assessing structural risk or the situation of the cabins.
  • Construction plans for a pilot channel and bank defenses must be structured.
  • No decision has been made on what types of defenses are needed to redirect the river.

Vitrón said he will communicate with Searpi to request an emergency evaluation and immediate measures. He added that local cooperatives have begun to seek support, especially given the risk faced by the treatment plant.

“This is a denunciation of the imminent threat in the area of the bridge. And so far, days have passed and neither Searpi, the municipalities, nor other institutions have come forward to provide immediate attention to this problem affecting the cabin residents,” he lamented.

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