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By: Big R Bridge The Stark St crossing over Beaver Creek consisted of an undersized concrete box culvert with a broken fish ladder that was prohibiting salmon and other fish species from migrating upstream through the culvert.  Multnomah County and the Oregon Department of Transportation (ODOT) worked together to design a solution that would... Read More

By: TrueNorth Steel The original site design for this project consisted of 40,000 ft3 of storm water storage, 20,000 ft3 above grade and 20,000 ft3 below grade built with 60” diameter HDPE and concrete manholes and inlets. The owner requested a redesign of the storm drainage to better utilize his property. The redesign included 78”... Read More

By: Pacific Corrugated Steel Pipe Co. A bridge project in Antioch, CA needed a very special isolation casing that wasn’t typically available.  Engineers reached out to PCP for their help in designing this mammoth casing. The project consisted of approximately 430’ of 168” 8g in lengths from 26’ to 66’ and approx. 200’ of... Read More

By: Contech Engineered Solutions The city of Mountlake Terrace, Washington needed a new stormwater retention facility to provide stormwater treatment and downstream flood control. The facility would treat runoff from an area of about 13 acres in the city’s downtown core and protect the water quality in the Lake Ballinger watershed. There... Read More

By: TrueNorth Steel Since 1993, wet conditions have brought water from the upper reaches of this watershed down to the Michigan Spillway Project area.   The Nelson County Water Resource District Board has worked toward emergency pumping to lower this flood for many years.   This project has had many designs made, with protection for downstream... Read More