Directory

Public engineering firm profile

Stillwater Sciences

Public profile details are available below.

Visit websiteClaim profile
Services
26
Projects
15

Overview

Stillwater Sciences specializes in science-based, technical approaches to natural and water resource management. Using a collaborative and multi-disciplinary approach, Stillwater integrates habitat and species information to understand critical ecosystem processes and identify effective measures for restoring and managing rivers and their floodplains as functioning ecosystems. Stillwater works closely with agencies, industry, and non-governmental organizations to deliver technical information for scientifically sound management decisions across the Western United States. Core areas of expertise include fish and aquatic ecology, water quality, environmental engineering, geomorphology, botany and riparian vegetation, wildlife, and spatial analysis/GIS.

Services

Watershed Assessment

Stillwater applies a watershed-wide approach to guide river restoration and management, examining the watershed as a whole to identify opportunities for maintaining, restoring, or enhancing existing habitat. Watershed-based resource management planning supports public access and land use, environmental resource protection, cultural and historic resources, and varying levels of water facilities and management operations.

Watershed analysis including ecological flow evaluations, riparian habitat establishment, and instream habitat creation and maintenanceWatershed Management Plans, Master Plans, and Integrated Regional Water Management PlansFeasibility studies and evaluation of alternatives for funding prioritization by ecological benefitRestoration prioritization planning and evaluation of physical processes and ecological responses

Fish Passage

Stillwater combines fisheries biology, geomorphic and hydrologic processes, engineering principles, and construction methods to design and implement fish passage projects addressing culverts, dikes, diversions, dams, and other artificial barriers in waterways.

Multi-species fish passage requirements analysisCulvert passage analysis using FishXing softwareGeomorphic assessments and hydraulic modelingSediment transport modelingEngineering and design supportConstruction-related fish rescue and relocation planning and implementationPermitting support and endangered species consultationsPre- and post-construction fish habitat and population monitoring

River Restoration

Stillwater Sciences employs a performance-led approach to process-based restoration planning and implementation, identifying watershed-specific context, limiting physical and biological conditions, and a prioritized suite of measures to restore natural aquatic function. Restoration projects incorporate watershed-scale understanding of channel morphology, flow and sediment transport, habitat structure and diversity, and the specific needs of critical or endangered species.

Watershed and corridor planning including limiting factor analysesImproving stream network connectivity including levee setbacks and barrier/dam removalImproving habitat diversity and function including riparian/wetland revegetation, gravel augmentation, and habitat enhancementReconstructing channel morphology to achieve ecological goalsStrategic bed and bank protectionMonitoring and evaluation with measurable success criteria and adaptive management

Environmental Compliance

Stillwater's scientific approach ensures targeted, streamlined, and defensible impact assessments and mitigation measures for environmental compliance.

Hydroelectric Project Licensing

Stillwater staff have supported over 30 FERC projects in study plan development, relicensing, compliance monitoring, and related support throughout the western US.

Flood Protection

Stillwater supports levee improvements and maintenance to meet flood control mandates using resource protection measures that reduce overall mitigation need.

Urban Streams

Stillwater planners and engineers evaluate, manage, and create naturally-functioning ecosystems within large urban centers, with experience in west coast cities.

Dam Removal

Stillwater scientists specialize in evaluating the impacts of dam removal, including effects on sediment transport, water quality, and fisheries, and how to model and mitigate those effects.

Industries

Water ResourcesEnvironmental & RemediationNatural ResourcesHydroelectricStormwater & Flood Control

Firm type

Environmental EngineeringCivil Engineering

Projects

Software

FishXing

Offices

No public values listed.