Link to Owner Dr. Robert B. Pamplin Jr.



Leaking underground stormwater pipes in the area caused erosion that led to landslides near the park.

Stormwater pipes that were leaking and caused erosion at Forest Glen Park in Forest Grove needed to be repaired as part of slope stabilization project.An effort to stabilize a slope and repair a stormwater channel near Forest Glen Park in Forest Grove is nearly finished, according to city officials.

Public Works Director Gregory Robertson said erosion on a slope adjacent to the park leading down to a stormwater channel was slowly occurring for years. Gradual erosion and then multiple larger landslides caused part of the park to calve into the stormwater channel.

"If you go out and look at it you can still kind of see what remains of that," Robertson said.

He said underground stormwater pipes were leaking, and excess stormwater started to invade the soil on the slope causing it to erode away quickly.

"That's what kinda started things moving," Robertson said. "I don't think when that area was developed as part of subdivision that that particular location was very well thought out."

Rocks were laid down on a slope near Forest Glen Park in Forest Grove to mitigate erosion that was washing away part of the park area.Crews were able to stabilize the soil by laying down rocks on the slope and repairing the stormwater drains underground, Robertson said.

The project also required crews to lay down rocks along the stormwater channel below the park near Gales Creek Road that received runoff from the park.

"The channel had an incised, exposed sewer main, which, that's never good," Robertson said. "From Forest Gale Heights all the way down was essentially unstable."

Robertson said the city wanted to stabilize the channel in a way that would mimic stormwater's natural flow, but because of limited space, officials decided laying down rocks would be the best way to reduce erosion along the channel.

The project, which was bid in June, will be $12,000 under budget, Robertson told the City Council on Monday, Oct. 28. The total project cost is $556,000.

The final step of the project will be to install fencing along the rocky areas to keep children off them.

City councilors Timothy Rippe and Val Valfre on Monday commended Robertson and the work crews for their efficient work.

"The projects up at the Forest Glen area were far more than I expected, and it was very well done," Rippe said. "All of my grandchildren play at that park and I was impressed by how they did not disturb that play equipment."

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