PEN 2 projects

	Capital Projects for PEN 2

	Completed Projects:

	City Canal Levee Improvements - This project was a joint project between MCDD and PEN 2. In 2007 the US Army Corps of Engineers *USACE), inspected the levees for recertification, the USACE determined the levee on the east side. of the Peninsula Canal was deficient because of the established trees on top of the levee. The trees had to be removed in order for the levee to be eligible for recertification. MCDD and PEN 2, agreed the levee on the east side of the Peninsula Canal would be the legal cross levee between the two Districts because the levee on the west side of the Peninsula Canal had been removed from USACE levee program several years before for the building and tree encroachments in the levee. In the fall of 2007 485 trees and root wads were removed during the month of August and the levee was roughly shaped with a maintenance bench and then hydro-seeded before the winter months arrived. Some of the trees, at the direction of the Oregon Department of Fish and Wildlife, were placed into the slough for use as turtle habitat. Project cost to remove the trees and root wads $164,000. The levee still needs additional work to accommodate a maintenance bench which will be completed in the near future.

	Bridgeton Levee Certification - The same certification investigation cited above was done on Bridgeton Levee by the USACE. It found trees needed to be removed in order for the levee to be recertified. The District, Bridgeton Neighborhood Association, City Forrester and the USACE developed a plan to remove trees in 2008 and replant trees over a three year period to help with the neighborhood beautification. The cost of the project was estimated at $130,000 for tree removal and $105,000 for tree planting. The District completed the tree removal project and planted trees around the Columbia School as a part of the mitigation requirements. The Bridgeton neighborhood and the District are working together to develop a plan to use the remaining mitigation funds.

	Children's Arboretum Park - This 25 acre jewel of a park in Pen 2 underwent some construction in 2007. Partners including the Drainage District, City of Portland's Bureau of Environmental Services (BES) and Parks and Recreation, the East Multnomah Soil and Water Conservation District, the Port of Portland, the Columbia Slough Watershed Council, the Columbia Corridor Association and private businesses all worked to fund the project. It removed two culverts and replaced them with foot bridges, and terraced and landscaped the ditch from Sixth Street to Gertz Street, approximately a mile in length. The trails and access roadways were improved and new signs were fabricated for the park. Specials thanks goes to Dick and Gyrid Towle, neighborhood advocates, who spear-headed this project. They were awarded both the Naito Tree Award and the CSWC leadership Award for their efforts. About $16,000 of District funds went into this project. More information on the Children's Arboretum

	West Bridgeton Slough - In 2005 West Gantenbien ditch was improved when the invasive yellow flag iris that was choking off any flows was killed off and hauled away, new channel was dredged and turtle habitat created. District crews did the work and private funds financed the $160,000 cost. A part of the project was to replace the old weir that allowed control; of water flowing from North of Marine Drive to the South with a new state-of-the-art weir. It was designed by the District engineer and installed by District crew members.

	FedEx Bicycle Trail - In 2007, FedEx completed its new 50 acre distribution center on some of Anthony Fazio's property. One of the City's requirements of FedEx was to provide a paved pedestrian/bicycle trail atop the Pen 2 levee behind FedEx. The City, FedEx and the District partnered to get this done. The Advantage to the District is the paved surface on top of the levee. The City is responsible for the maintenance of the paved trail.

	Peninsula Canal Plug Upgrade - The USACE identified a certification deficiency at the plug which closed off the Columbia Slough from the Peninsula Slough. The North slope was too steep and needed to be reworked. The District partnered with MCDD to place 14,000 cubic yards of sand and top soil and 600 tons of riprap to meet the federal levee design standards. This was accomplished in 2007. The District then installed a fence and gate for security and to keep neighbor's horses confined. The total cost was $124,000 split fifty/fifty with MCDD.

	Future

	NE 13th Pump Station Upgrade - The two existing pumps, motors and discharge pipes at the pump Station re aging and need to be replaced with more efficient systems and a greater pumping capacity.

	Bridgeton Levee Riverward Slope - The riverward slope is very steep and in some section has become unstable and may fail during a prolonged high river event. The slope needs to be resurfaced and with riprap installed at the toe of slope to stabilize the steep slope.

	Levee Seepage Investigation - during a high river levee when the levees become saturated the District will use some form of infrared or ground penetration radar to detect areas in the levee that are abnormally saturated or identify potential conduits for high level seepage of boils.

	Investigate Levee Toe Drains - Majority of the levee system have a toe drainage system which drains the water away from the levee does not become overly saturated at the base of the levee. Over time the toe drainage system may become plugged or damaged. The investigation will identify any deficiencies that need to be corrected.

	Lower Columbia Slough Levee Improvement - The District is performing a slope stability analysis along the lower Columbia slough levees to identify slopes that may need to be repaired or rebuilt to meet USACE levee design standards.

	Trash Raking Systems for Pump Stations - As water quality improve in our ditch system the aquatic weed becomes an increasing issue with plugging the intakes to the pump stations. In order to prevent the pumps from cycling continuously because of the weed build up the District has designed a trash raking system to remove the weed from the grate automatically. The trash raking system cost between $90,000 and $130,000 per pump station. As soon as the District can Budget for the improvement the trash raking systems will be installed.

	Coordinate with Utilities to get a Secondary Power grid to Pump Stations - The District is working with the electrical utilities to install a secondary power source sub-station to all of our pump stations to establish a redundant and reliable power source to the pump stations.