search
menu

Stormwater treatment wetland for Minnesota college arboretum

About this project

client
Carleton College
location
Minnesota
cost
$185,000
completion date
2007

The 800-acre Carleton College arboretum underwent a long-term restoration of its woodland, prairie, savanna, and floodplain plant communities. When parking lots and a new recreation center were built adjacent to the arboretum, the college called on Barr to design a stormwater treatment facility in the arboretum.

The facility had to meet functional requirements—treating water before it reached the Cannon River and fitting into the arboretum’s natural landscape. Barr recommended a constructed wetland, which would be both effective and attractive in the arboretum setting.

Barr performed hydrologic and ecological analyses to determine the size of the new wetland and its potential fit with the natural topography and vegetation. Working with the college to site the wetland, Barr recommended reclaiming a former dumping area, where heaps of old blacktop were overgrown with invasive, exotic trees. By constructing the wetland there, the college lost an eyesore and an ecological liability while gaining valuable wildlife habitat and a visual amenity. Unlike typical stormwater-detention basins, this wetland system has gradual, natural-sided slopes; features a geosynthetic clay liner to allow for more permanent water storage in the basin; is shaped to resemble oxbow wetlands that occur naturally along rivers like the Cannon; and fosters a diverse wetland-plant community.

Key team members

Fred Rozumalski

Landscape Architect and Ecologist

Kurt Leuthold

Vice President
Senior Civil Engineer

Related Other Sectors projects

Spillway upgrades at St. Cloud Dam
Testing and optimization of fine-tailings drying technologies
Third-party transmission-line construction monitoring
Groundwater monitoring for Fridley Filtration Plant rehabilitation
Investigation and remediation of jet-fuel release
Vapor intrusion investigation and mitigation in a residential neighborhood
Engineering services and permitting assistance for Bison 2 and 3 wind farms
Geotechnical, structural, and civil work for Canadian wind farm
Redevelopment services for Surly destination brewery
Groundwater modeling for 1,4-dioxane
First-of-its-kind spent-lime stormwater BMP treatment system
Design services for solar generation facility
Albert Lea Lake outlet modifications
UMore Park environmental services
Oxbow-Hickson-Bakke ring-levee flood protection
Engineering services for pipeline reversal
Bathymetry and sediment studies for dredging and restoration of Minnesota lake
Environmental integration support for Wamsutter Crude Oil System
Mon-Maq Dam removal assessment and process design
Monitoring of constructed wetland for groundwater remediation
Engineering and design for Universal Studios’ rapids ride
Retrofit design for a city-campus parking lot
Greenway design to treat stormwater and mitigate flooding
Inspection, design, and construction oversight for tunnel rehabilitation
Stormwater retrofits along redesigned urban streets
Expansion of landfill-gas-fired power generation facility
Sustainable landscape master plan for Minnesota college campus
Installation of new auxiliary boilers for power plant
Permitting and environmental review for pipeline terminal expansion
Earthen embankments reduce flooding and sediment loading in rural creek
Upgrades and expansion for silica-sand wet plant
Reclamation of legacy tailings site
Environmental liability assessment at manufacturing facility
Engineering services for frac-sand operation
Project prioritization tool for Minnesota watershed district
Flood-control modeling and system upgrades in urban neighborhoods
Multi-site PFAS remedial investigation and remediation
Sustainable site design for watershed district headquarters
Green infrastructure treats stormwater along light rail corridor
Monitoring and maintenance of remediation system at wood-treating site
Engineering services for municipal wastewater-treatment facility
Powerhouse and turbine replacement at Redwood Falls
Permitting and wetland delineation for a community solar garden
Penstock replacement at McClure Dam
Creation of LID master plan for stormwater management
Demonstration rainwater gardens reduce stormwater runoff
Steam-line evaluation at Rapids Energy Center
Air quality permitting for distributed-generation plant
Discovery Point ecological restoration
Fish-habitat and floodplain restoration of a Minnesota trout stream
Investigation and design for Freeway Landfill
Stormwater basin retrofits for water quality improvement
Engineering design for crude-oil-terminal pipe rack
Self-contained bog built on college roof
Landslide stabilization and corridor repair for state highway
Engineering design for pipeline pump stations and terminals
Tailings-management area design and construction
Gate automation for the Soo Locks compensating works
Natural channel design for aquatic organism passage
Engineering and design for SeaWorld’s Infinity Falls water ride
Concept-level design of wastewater discharge option
Sweeney Lake and Schaper Pond water-quality improvement
Upgraded levee system manages flood risk for Minot residents
Hall's Island and Scherer site reconstruction
Structural monitoring of sanitary sewer line
Minnetonka Mills Park design
Engineering services for industrial chemicals mine and processing facility
Trona-mining production optimization
Environmental support for post-fire cleanup at industrial facility
Permitting and compliance services for oilseed-processing plant
Remediation and redevelopment of historic dump
Environmental review for peaking plants
Flood risk reduction for North Dakota city
Engineering and design services for new truck dumper
Landscape master plan for Minnesota college campus
Stormwater-basin retrofits improve water quality and habitat
Natural stormwater-treatment system and park redevelopment
Cost analysis for meeting water quality standards
Green infrastructure retrofit of an urban shopping-mall parking lot
Auxiliary boiler installation
Remedial investigation, negotiation, and design for Superfund site
Dry Spotted Tail Creek stream restoration
Remediation and residential redevelopment of Whitehall Leather site
Regulatory-compliance assistance for Freeway Landfill
Retrofit engineering for ash conveyance
Hall’s Island redevelopment and restoration
City of New Brighton water treatment plant design
Design and permitting for WISCO Oilfield Special Waste Landfill
Chlor-alkali process design
Support for decommissioning and demolition of manufacturing facility
Option study and design for air jig dewatering system
Permitting, design, and construction oversight for CCR surface impoundment
Brownfields redevelopment for watershed district headquarters
Preliminary design for PFAS-related drinking-water treatment
Renovation of historic Peavey Plaza in downtown Minneapolis
Transmission-line permitting assistance
Air permitting for petroleum refinery’s waxy-crude processing project
Redevelopment of former Mayflower Mine
Water reuse evaluation for zero liquid discharge at manufacturing facility
Permitting for greenfield renewable diesel production facility in Utah