A summer of heavy rains has taken its toll on the shores of Marne Creek and the infrastructure along it.
This week, representatives from the City of Yankton will appeal to the James River Water Development District (JRWDD) board of directors for grant funding when the group meets in Aberdeen Thursday.
Two major erosion-related problem spots have emerged along the creek:
• A location to the south of the Fourth Street/Highway 50 bridge over the creek near the Yankton Area Chamber of Commerce’s office has seen a major bank collapse that has exposed a heavily used water main.
• Further upstream, a location near the Burleigh St. bridge over the creek is in need of bank stabilization.
Yankton Public Works director Adam Haberman told the Press & Dakotan the Burleigh location requires a lot of work.
"We’re asking for a $50,000 grant towards the project to stabilize the bank, do some trail reconstruction, some storm sewer outfall reconstruction as well as bank stabilization along the bridge structure to help protect the bridge structure from further damage," Haberman said.
The total cost of the Burleigh St. fix is estimated at $274,000.
He said the city will also request another $50,000 grant to help with work at the other location on Marne Creek south of the Fourth Street bridge.
"There’s a water main crossing that crosses underneath the creek," he said. "The bank has eroded quite significantly at that location, exposing the water main, which is part of a looped water main system that takes care of a lot of the industrial businesses on the east side of Yankton. It’s important to keep that line capable of being in service."
Yankton Parks & Recreation director Todd Larson told the Press & Dakotan that the trail system in this area may also be affected.
"With as much that has fallen off in that area where that pipe is exposed, we probably will look at moving the Auld-Brokaw Trail farther to the west and utilize the compass/drinking fountain area to be a place where you get on to the trail. That way, it’s further to the west."
Repairs at this location are estimated at $215,000.
Haberman said the city is also looking into other grants to cover the costs of repairs.
"We’re working with (Planning & Development) District III on that currently to see if there’s some other grant options available for those areas," he said.
He added that he’s unsure of an exact timeline for the erosion damage to be repaired.
"We’re hoping to get that water main crossing taken care of yet this year or early in 2019," he said. "The Burleigh St. project, we hope to take care of in 2019 as well."
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