Gov. Sarah Huckabee Sanders had requested the increase on Tuesday after touring damaged areas of Pulaski, Lonoke and Cross counties.
“It’s clear that the cost to clean up the damage those storms created will be substantial,” she said Tuesday.
Before Biden’s authorization, federal funding covered 75% of eligible costs.
The March 31 storms and tornadoes caused widespread damage across Arkansas and resulted in at least five deaths, one of them in North Little Rock. Four of the deaths occurred in Wynne, where the high school and the municipal sewage plant sustained significant damage, according to city officials.
Blake Marotti, general manager of Wynne Water Utilities, described the sewage treatment plant as a total loss. In a statement posted on the utilities’ website, he said the city is diverting wastewater to a holding pond and transporting it by tanker trucks to a nearby treatment plant.
All wastewater pumping stations remained operational, he said, to avoid the threat of sewage backups into homes and businesses.
The city’s water treatment plant was not damaged during the storm, he said.
Cleanup efforts continued throughout the week as truckloads of debris were hauled to Reservoir Park in Little Rock and Burns Park in North Little Rock. Both parks lost dozens of trees in the EF3 tornado that tore a 32-mile-long path through west Little Rock, North Little Rock, Jacksonville and Lonoke. The separate Wynne tornado was also classified an EF3 storm.
Pulaski County government provided an updated list of disaster assistance on its website on Friday.
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