Portfolio
Northrop Rural Residential Site Design - Washington County, Oregon
LEI Engineering and Surveying of Oregon developed a complete site design for this rural homesite on steep terrain in Washington County, Oregon.At the onset of this development project, LEI Engineering and Surveying of Oregon worked closely with the project architect, geotechnical engineer, and owner to develop a site layout that met the owners desire for the site, while addressing the challenges present at the site. One of the major challenges of this site were the very bad soils identified by the geotechnical engineer. To address the bad soils at this site; LEI Engineering and Surveying of Oregon minimized embankment heights, over excavated unsuitable soils, and prescribed controlled compaction under the direction of the geotechnical engineer.
Another challenge at this site was treatment of stormwater. The steep terrain and poor soils with very low permeability, meant that low cost infiltration systems would not work here. LEI Engineering and Surveying of Oregon designed a large, but shallow, detention pond with a staged control structure and a designed flow spreader. LEI Engineering and Surveying of Oregon's pond design treats site stormwater and outlets it downslope as sheet flow using the designed flow spreader.
Boat and RV Storage Facility Engineering - Detroit, Oregon
LEI Engineering and Surveying of Oregon completed the land surveying, civil engineering, and construction engineering/surveying for the construction of a medium sized boat and RV storage facility in Detroit, Oregon. The site where this development took place included very poor soils, extensive surface water, and a nearby wetland.
This site presented many engineering challenges due to the nearby wetland and extremely poor soils located at the site. Some of the solutions used to address these challenges included design of a 12-feet height concrete retaining wall along the back of the site, over excavation of poor soils, use of cement-modified soils to provide a firm foundation, extensive use of geotextile and geogrid, and rock armoring of drainage features along the perimeter of the site.
Through the entire construction phase of the project, LEI Engineering and Surveying of Oregon spent significant time at the site working with the construction contractor to address issues found during construction. The final constructed site is functioning very well and has meet owner expectations and needs.
Site Design for Green House Development - Oregon City, Oregon
LEI Engineering and Surveying of Oregon completed the land surveying, geological investigation, and civil engineering for the site development of 250,000 square feet of greenhouses in Oregon City, Oregon. Poor and expansive soils were a major concern at this location. LEI Engineering and Surveying of Oregon’s Engineering Geologist, Stephen Palmer performed geologic investigation to classify soils and determine prescriptive measures for design and construction. This also included performing soil infiltration testing using a cased falling head test.
LEI Engineering and Surveying of Oregon developed site design civil engineering plans for road access and site development. Drainage around the green houses was a serious concern due to the expansive soils at the site. Following engineering geologist recommendations, LEI Engineering and Surveying of Oregon designed a sub-drain around the buildings to drain water from the foundation soils
Stormwater runoff treatment for this site was addressed with a large wet and vegetated detention pond. LEI Engineering and Surveying of Oregon worked with the project landscape architect to develop a planting plan and design that included an island in the middle of the pond.
Lookout Pass Ski Resort Expansion Road Engineering - Wallace, Idaho
LEI Engineering and Surveying of Oregon worked as the forestry and engineering lead as part of an inter-disciplinary team to expand the Lookout Pass Ski Resort to nearly double the amount of skiable terrain and ski runs. The land that the Lookout Pass Ski Resort is located on is US Forest Service land leased to the resort owner. Since this land is federally owned, an Environmental Impact Statement (EIS) was required to address requirements of the National Environmental Policy Act. For the EIS phase of the project, LEI Engineering and Surveying of Oregon located several potential new road alignments to provide access for construction of new ski lift towers and logging of new ski runs for analysis in the EIS. LEI Engineering and Surveying of Oregon performed a forest fire risk analysis and developed prescriptions for logging of ski runs.
In December of 2016, the Final Environmental Impact Statement was approved by the US Forest Service allowing the resort owner to begin construction. During the summer of 2018, LEI Engineering and Surveying of Oregon performed route surveys for proposed new road alignments for use in road design. LEI Engineering and Surveying of Oregon then performed low volume road design of these routes following US Forest Service standards and guidelines.
During the early fall of 2018, construction of the new access roads began and logging of new ski runs was done.
In 2019, new ski lifts were installed on the mountain and construction of the new ski runs and access road continued.
Westside Presale Services Forest Health Project - Republic, Washington
LEI Engineering & Surveying of Oregon completed the presale services for 31 units selected for treatment to reduce fire risk and to address pest damage for the USFS in Republic, Washington. These services included unit layout, unit boundary flagging, unit GPS mapping, development of logging systems worksheets with maps, and boundary painting. The timeline of this contract was meant to span two seasons: 2019 and 2020. After work on the contract began, there was a desire by the Forest Service technical staff to complete the contract sooner if possible. To address this desire, LEI Engineering & Surveying of Oregon accelerated the work plan for project work and completed all work in fall of 2019, one complete field season ahead of schedule. This allowed the Forest Service flexibility to potentially put the units out for public auction in spring of 2020.
Through the life of the project, LEI Engineering & Surveying of Oregon worked closely with Republic District staff to ensure that work completed by LEI Engineering & Surveying of Oregon met Forest Service objectives and that any changes needed were quickly addressed. This included the LEI Engineering & Surveying of Oregon project manager meeting with the COR at the District Office, or in the field, 2-3 times per week while field activities were underway. LEI Engineering & Surveying of Oregon also provided the COR with a weekly work deployment schedule showing where LEI Engineering & Surveying of Oregon field personnel would be working and objectives for the week. This gave the COR ample time and flexibility to schedule inspections and to provide input to LEI Engineering & Surveying of Oregon staff as work was being performed.
LEI Engineering & Surveying of Oregon is excited to been a part of this project to improve the health of our national forests and reduce the risk of forest fire.
Low Volume Road Design Training - The Campbell Group
LEI Engineering and Surveying of Oregon provided Low Volume Road Design training use Softree RoadEng to The Campbell Group engineers and foresters. Softree RoadEng is the Forest Industry standard in road design software. LEI Engineering and Surveying of Oregon has been using this software platform in its practice as professional logging engineers since 1997, completing the design of hundreds of miles of new low volume roads.
Through this extensive use of Softree RoadEng for to complete low volume road design projects, LEI Engineering and Surveying of Oregon has developed an approach to design that works effectively and efficiently for logging road construction. LEI Engineering and Surveying of Oregon has documented this approach in a training manual and accompanying DVD.
This training material has been perfected over the last 10 years and provides excellent prescriptive practices that foresters and logging engineers can quickly learn and deploy to properly address their logging road design needs.
LEI Engineering and Surveying of Oregon was proud to be able to present the most updated version of LEI Oregon’s training material based on Version 8 of Softree RoadEng to The Campbell Group staff.
USDI Bureau of Land Management 5-Year Contract
LEI held a five-year, $5 million, A/E IDIQ contract with the USDI Bureau of Land Management through 2018 that was administered out of Portland, Oregon. LEI was the team lead for a five-firm multi-disciplinary team to complete a wide range of A/E projects that include architectural, design, land survey, condition assessment, construction administration and NEPA. A selection of task orders assigned LEI are as follows:Coleman Creek Bridge Design: LEI completed the survey, design, and preliminary construction administration for the replacement design of a 12-foot dia culvert with a 60-foot span concrete bridge: Topographic survey, hydraulic analysis, structural design, civil design, construction document preparation, schedule of items and engineers estimate.
Bear Camp Road(Galice) EFRO Slide Repairs: LEI completed the survey, design, and construction administration of nine segments of the Bear Camp Forest Highway damaged by landslides. Funding for slide damage was through Western Federal Lands Highway Department EFRO funds: Topographic survey, geotechnical investigation and analysis, civil design, construction documents, engineers estimate, schedule of items and specifications.
Molalla/Quartzville Road Hazard Assessment: LEI completed road hazard assessment on two forest highways approximately 40 miles in length: Centerline traverse survey, assessment of clear zone violations, determination of need for guard rails, design speed analysis and assessment of other safety features designated by AASTHO.
LEI also completed Marmot Dam existing bridge load rating and site condition assessment: Conditions assessment of the Marmot Dam recreation site for future development, load rating and re-decking assessment of large steel pedestrian bridge, analysis of existing shotcrete wall, topographic survey of planned new recreation site, preliminary assessment of vehicle traffic patterns and parking.
