Intro
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• Pilot-scale demo of CCT    with flow condition • Harvested materials • Scale analysis • Long-term monitoring • Complex to implement • Large footprint • Expensive and   challenging to   operate
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Click on buttons to learn more about each pipe loop.
• Batches of water with flow conditions • Harvested materials • Scale analysis • Sample collection challenges • Water quality changes in    recirculation reservoir
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CONSTRUCTION
DESIGN
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ASSESSMENT
Stream Projects Completed
Our staff utilizes efficient survey technologies to immediately confirm design elevations. If construction issues arise, our designers are on hand to provide guidance and design updates.
MONITORING
Hazen’s designs provide cost effective and practical solutions while maximizing water quality and climate resiliency benefits in both ultra-urban and rural settings.
Engineers and scientists at Hazen determine the characteristics and unique needs of each stream through field evaluations, permitting, and modeling.
More on Construction
Hazen provides comprehensive post construction monitoring and utilizes efficient data reporting platforms to best advise and inform our clients on a project’s success.
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INTRODUCTION
More on Assessment
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RESOURCES
INTRODUCTION
INTRODUCTION
ASSESSMENT
DESIGN
CONSTRUCTION
MONITORING
RESOURCES
Left Bank
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In addition to the base level and flow, the bankfull stage and maximum depth are recorded.  
Permanent cross-section pins are placed and a measurement tape with 1-inch marks attached.  
Right Bank
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The stream's peak flow stage (flood prone area) and maximum depth are also measured.  
Stream (Base Flow)
Surveys are undertaken at multiple points along the stream to record existing conditions.  
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MORE ABOUT HAZEN’S FIELD EVALUATIONS
Field Evaluation
ASSESSMENT
Peak Flow Stage
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Surveyor’s Pin
Measurement Tape
Modeling
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Multiple measurements are made at different locations of width, depth and stream flow.  
Permitting
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Surveyor’s Level
Trained field staff survey the stream geomorphology and biological health of a stream to determine possible problems. 
Bankfull Stage
Surveyor’s Rod
Operations Optimization
Perform Water System Balance To validate the model, historical inputs of runoff, baseflow, withdrawals, discharges, and reservoir operations are run through the model and compared to gage flows and/or historical resevoir elevations. Simulation logic for time of travel through river reaches can also be implemented at this stage.  
Apply Model Flexible development throughout the model allows for an array of possible applications – some that may not have been anticipated beforehand. The model then becomes a living tool to support adaptive management.  
Expert modelers conduct hydrologic and hydraulic analysis of a stream and its watershed. Basin water supply models are typically developed through these several common tasks. 
Frame Scale and Scope of Model Determine performance metrics for decision making, and on a broader scale the overall problem to be solved.  
Possible Applications
Develop Model Logic Logic emulates the effects of human- controlled water actions at pre- determined time intervals to describe current, past, or proposed future water decisions. Logic controls how much water is transferred from one node to another at each time step to satisfy water demands, accommodate returns, maintain storage in reservoirs, generate power and satisfy other uses. Logic also enforces priorities and limits on uses.  
Dispute Resolution
MORE ABOUT HAZEN’S WATERSHED MODELING
Apply Model The model simulates the impact of changes to the system in order to develop solutions to the problems posed in Step 1.
Water Use Permitting
Drought Forecasting & Response
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Water Use Planning
Draw River Basin Network  Network shows how water flows between reservoirs, withdrawers, dischargers, flow gages, streams and confluences, pipes, aqueducts, and other locations of interest.  
Possible Applications
Section 10 of the Rivers & Harbors Appropriation Act of 1899
Experienced permitting staff determine the local, state, and federal requirements. 
Endangered Species act of 1973
Section 404 of the Clean Water Act
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Section 401 of the Clean Water Act
MORE ABOUT HAZEN’S STREAM PERMITTING
Floodplain Development
Regional Buffer and Riparian Protection Programs
Asset Protection
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DESIGN
MORE ABOUT HAZEN’S BANK DESIGN
Floodplain Risk
Bank Stability
Channel Placement
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MORE ABOUT HAZEN’S ASSET PRODUCTION
MORE ABOUT HAZEN’S CHANNEL DESIGN
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MORE ABOUT HAZEN’S FLOODPLAIN DESIGN
Survey Tools
CONSTRUCTION
Efficient Solutions
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MORE ABOUT HAZEN’S SURVEY TOOLS
Construct A Stream
RESOURCES
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Button 3
Button 1
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MORE ABOUT STREAM RESTORATION
MORE ABOUT HAZEN’S EFFICIENT SOLUTIONS 
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MORE ABOUT HAZEN’S STREAM CONSTRUCTION
Data Analysis
MONITORTING
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Data Collection
Insightful Reports
MORE ABOUT HAZEN’S DATA COLLECTION
MORE ABOUT HAZEN’S DATA ANALYSIS
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MORE ABOUT HAZEN’S INSIGHTFUL REPORTS
How does basin respond to current uses under past hydrology?
How does basin respond differently with future uses?
How does basin respond to changes in hydrology or climate?
How do human uses impact one another? Environmental needs?