The Pacific Northwest Waterways Association engaged our team on behalf of ports along the Columbia River and Snake River to quantify the economic impact of removing four dams along the lower Snake River. We conducted a USDOT compliant benefit cost analysis to determine the net impact dam removal would have.
Portland’s wholesale agreement, defining the terms and conditions of service for 19 water providers, will expire in 2026. Our team started as an advisor to facilitate consensus selection of features for the new agreement and later to assist Portland with implementing those features, including preparing the draft agreement and developing a new wholesale rate model.
The Greatrock North Water and Sanitation District retained our team to address its aging and failing reverse osmosis water treatment plant. The existing plant designed and built by the original developer had a capacity of 100 gpm and could not keep up with the desired capacity or the district’s water quality targets.
The Edgemont Ranch Metropolitan District was issued new, strict TIN, TN and TP limits that rendered their lagoon obsolete. As a remedy, the district looked to the BIOCOS technology, a hybrid activated sludge system to deliver more thorough treatment, consisting of two aeration tanks hydraulically connected to an alternating pair of sludge recycling and settling tanks.
The Town of Del Norte’s collection system had significant structural issues including collapsed clay pipes, cracks, and offset joints. Our team was retained by the town to assess, plan, fund, design, bid and provide construction administration for a system-wide collection system improvement project.
Center Sanitation District was struggling for years with a non-compliant lagoon system. The existing facility had chronic BOD, TIN, and E. Coli violations of their groundwater discharge permit. Our team was tasked with creating a long-term financially sustainable solution for the district that didn’t break the bank.
As part of several distinct projects along the Crystal Drive corridor, Bowman prepared designs for the construction of streetscape improvements including multi-modal transit accommodations with protected bicycle lanes, urban landscaping, green stormwater infrastructure, street lights and infrastructure improvements.
Twenty-eight acre site for construction of new district office, warehouse, bus facility and 4000 LF of half street improvements for a major arterial roadway. We provided civil engineering design services for Durango Road, which included paving, sewer, and public water.
This project involved topographic survey, new sewer design to replace existing septic system and complete onsite and offsite civil design services, including grading and drainage, domestic water, private fire line, 4 tennis courts, 2 large parking lots, 2 bus drop-offs, all weather running track, football, baseball and softball fields.
Our team performed all imagery acquisition and processing as well as most of the LiDAR acquisition (approximately 3,100 square miles) for this project. In order to enable capture of peak flood conditions, typical orthoimagery acquisition specifications for no clouds or haze, etc. were not required for this project.