Evaluate existing site drainage conditions and then design a stormwater drainage system that provides the required water treatment, detention and conveyance for the entire site. The proposed site is a 4.86 acre

commercial development in the city of Tualatin consisting of 5 structures, parking lots,

pedestrian facilities, and landscaping. The City of Tualatin Stormwater Master Plan

requirements were followed. This included allowing on 0.9 cfs of runoff for 25-storm event,

while providing detention for the remainder of the runoff. Water Quality demand flows had to

be treated before entering the public stormwater system. The entire stormwater system for the

site must provide conveyance for the 25-year storm event. Provide Erosion Control and

Sedimentation Control plans for permitting. A Stormwater Drainage Report was provided. It

consisted of runoff calculations, pipe sizing calculations, conceptual drawings and design

drawings. Erosion control and sedimentation control plans were developed for the 1200C DEQ

permit. Grading design, sanitary sewer design and waterline design were completed and

building permits approved for construction.

 

 

 

Client: Mr. Steve Johnson, VIP Industries, Inc., Salem, Oregon

LEI Master Planning and Green Civil Site Design:

Engineering master plan and design of the city water main connecting the S1 – S2 lines in Southeast Salem on and near the former Fairview Training Facility.  Engineering master plan for the sanitary sewer line, which will ultimately follow the Hilfiker Road Extension in the City of Salem.  All tributary lines feeding it from the former Fairview Training Facility site will be included. Engineering masterplan for the transportation component upgrades in and around the 270 acre former Fairview Training Facility site. These will include designs for Reed Road, Battlecreek Road, Strong Road and Pringle road. Road improvements onsite include 15 – 20 miles of new roadway with innovative typical sections for sustainable Green Building. Engineering master plans and design for stormwater treatment and design where LEI will work closely with the City of Salem to work through Green methods of stormwater treatment and design. The City of Salem has recently adopted the City of Portland’s BES Stormwater Treatment Guidelines Engineering master plan.

Clients:  Ms. Kirstin Newland, Curry Architecure and Colson and Colson AA Construction  Salem, Oregon

LEI Civil Site Design and Stormwater Design:

Evaluate existing site drainage conditions and then design a stormwater drainage system that provides the existing water treatment and conveyance for the entire site. The proposed site is a 2.83 acre commercial development in the City of Springfield consisting of a hotel, parking lot, pedestrian facilities, and landscaping. The City of Springfield Engineering Design Standard requirements were followed. The City of Portland Stormwater Management Manual governed water quality standards. Water Quality demand flows had to be treated before entering the public stormwater system. This entailed using both vegetated swales and water quality catch basins. The entire stormwater system for the site must provide conveyance for the 25-year storm event. Erosion and sedimentation control plans were developed for the project site. A Stormwater Drainage Report was provided. It consisted of runoff calculations, pipe sizing calculations, conceptual drawings and design drawings. Erosion control and sedimentation control plans were developed for the 1200C DEQ permit. Grading design, sanitary sewer design and waterline design were completed and building permits approved for construction.