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Monolithic Cast in Concrete Manhole Structures |
04/09/1973 |
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Concrete Pipe Design Methods |
07/01/1978 |
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Manholes – Large Precast Designs; 60”, 72”, 84”, 96” Diameters, Manhole Design Correspondence with Pacific Northwest Concrete Pipe Association, Ramsey Lake Storm Trunk; Manhole Designs; 1996, Precast Manhole Designs |
05/01/1984 |
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Columbia Boulevard Wastewater Treatment Plant (CBWWTP) Digester Access Hatch |
05/30/2001 |
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Columbia Boulevard Wastewater Treatment Plant (CBWWTP) Triangle Lake Pump Station |
07/24/2001 |
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Columbia Boulevard Wastewater Treatment Plant (CBWWTP) Scum Building; Jib Crane Installation |
04/26/2002 |
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Emergency Safety Bridge at Vista Bridge; Vista Screen - Change Orders |
07/02/2002 |
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North Wheeler Manhole Rehab (120 Precast); February 2003 |
02/01/2003 |
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Alberta Art Project; Tree Sculpture |
04/30/2003 |
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Southwest 45th and Hamilton; Sewer Bridge Structure; Bureau of Environmental Services; May 2004 |
04/06/2005 |
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George School Screen Pedestrian Bridge |
08/03/2005 |
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Arlene Schnitzer Concert Hall; Structural Sidewalk Slab; 1/4 3029 |
01/01/2006 |
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Tri-Met South Corridor Project; Cast in Place Manholes; May 2006 |
05/10/2006 |
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Tanner Phase 3 - Shallow Burial Pipe Topping Slab; June 2006 |
06/16/2006 |
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Northwest 10th and Glisan; Report on Vibration Monitoring |
08/28/2006 |