True Expertise + Working Ingenuity

PUBLIC WORKS

ARCHITECTURE + ENGINEERING + ENVIRONMENTAL + PLANNING

True and responsive expertise put to work.Expertise is an industry standard. How it is applied to individual, unique

situations is the differentiator. At ISG, we believe our true expertise—

coupled with our ingenuity, creativity and eagerness—truly set us apart.

We’re not just about getting the project done and moving on to the

next. We’re about helping our clients succeed, providing timeless design

and solutions for lasting value and building environments that support

sustainability. Our diverse knowledge and broad perspective drive

responsive delivery of integrated solutions and services with focused,

dynamic expertise. This true and responsive expertise ensures superior

project completion and valuable, enduring relationships that benefit our

clients now and into the future.

ISG provides high level architecture, engineering, environmental and

planning services for a wide range of markets. Our commitment to satisfy

each project’s unique demands is relentless and unwavering from start to

finish. It’s true expertise and ingenuity put to work for your success.

I+S GROUP

www.is-grp.com

EXPERTISE

Architecture

Engineering

Environmental

Planning

WORK

Agriculture

Civic and Culture

Commercial

Education

Energy

Government

Healthcare

Housing

Industrial

Mining

Public Works

Sports and Recreation

Improving, planning and protecting our futures.

Our ISG experts offer unparalleled service in the public works arena. We accomplish this by

building a trusting relationship through long-term planning, understanding the needs of public

entities, their priorities and financial situation and developing productive working relationships

with officials, staff and stakeholders.

ISG’s multi-disciplinary team of experts including engineers, surveyors, architects, planners and

environmental scientists give each client a single point of contact for ease of communication

and timely delivery. Not only do we provide superior service, we also deliver results.

These results mean marked improvement for citizens in a variety of infrastructure including

transportation improvements, protected environments and access to clean, safe resources.

Sibley Parkway

Mankato, MN

The Sibley Parkway Redevelopment Project Area covers approximately 70 acres of an

underutilized and blighted industrial area located adjacent to the Minnesota River. The project

involved an extensive riverbank restoration, which included re-channeling the river’s flow away

from the fragile banks. Once completed, the riverbank was replanted with native vegetation.

Land use now includes a multi-family affordable housing property, along with sidewalks and

bike paths that invite the public to interact with the river both visually and physically.

www.is-grp.com

PUBLIC WORKS EXPERIENCE

• Streets and Roadways

• Parks and Trails

• Transportation Designs and Plans

• Pedestrian and Vehicular Bridges

• Pavement Management Plans

• Water Supply, Treatment and Distribution Systems

• Stormwater Management

• Wastewater Treatment Facilities

• Water and Sanitary Sewer Systems

• Water Storage Facilities

• Sanitary Landfills and Solid Waste Plans

• Parking Studies and Structures

• Land Use Plans

• Capital Improvement Planning Financial Models

• Customized Municipal Solutions

• City Engineering Services

• Licensed Water and Wastewater Operations

• Streetscapes

• Public Works and Maintenance Facilities

• Environmental Reporting Solutions and

Management Activities

Goodhue Water Tower

Goodhue, MN

A study was conducted for a new water distribution

system to serve the City of Goodhue. This study

included creating a model of the city’s existing water

system that was used to determine the effects of a new

water tower and water main improvements. When

complete, the project included a 250,000-gallon water

tower, a water main extension to existing infrastructure,

site plans and demolition of the existing tower.

Mill Creek Bridge

Cherokee County, IA

Cherokee County wanted to replace an existing high truss bridge over Mill Creek. The

existing bridge had sharp curves on both approaches and a posted weight limit. The

replacement bridge was designed on a horizontal curve with super-elevation built into the

bridge cross section. The existing high truss bridge was retained as a historic structure. A

canoe access and parking area was constructed along the south bank of Mill Creek.

Cherry Street Ramp

Mankato, MN

This 169-stall parking facility resulted from a study by the City of Mankato, with the

assistance of ISG. The innovative two-story ramp, in the heart of downtown, was

designed to accommodate future retail, housing and mixed-use spaces on successive

floors. A precast concrete system was selected as the structural system for the facility,

allowing for expedient construction times and a flexible design medium. The ramp

location also serves as a transit station and major hub for the municipal bus system.

West Bend Water Treatment Improvements

West Bend, IA

After years of multiple repairs to their iron filter, heavy corrosion finally

caused the replacement of the unit for the City of West Bend, Iowa.

ISG prepared plans for a new factory built unitized aeration/detention/

filtration unit. This was the first all aluminum filtration unit constructed

in the State of Iowa. The tank resists corrosion and provides

maintenance free service. In addition, a large portion of the piping was

replaced with PVC piping, which will also provide a more maintenance

free system. The treatment plant now removes iron and manganese to

below secondary MCL limits.

West Lakeshore Drive

Storm Lake, IA

The project consisted of a total reconstruction of West Lakeshore

Drive and subgrade with a new concrete section placed on a modified

sub-base. A portable crushing operation provided reuse of the crushed

concrete for this base. The storm drainage system was reconstructed and

routed to one outfall line to the lake. The old pavement was recycled

into the street structure, eliminating use of new raw material. Stormwater

management is greatly improved with the new intakes and storm

sewers that collect runoff and direct it through the separation device for

treatment prior to discharge to the lake.

U.S. Highway 14 Roundabout

New Ulm, MN

Known to be the first on the U.S. Highway 14 improvement project between New

Ulm and North Mankato, this single lane roundabout sits at the entrance of a large

new commercial development and a Menard’s store and is the result of a public/private

partnership that included the Minnesota Department of Transportation, the City of

New Ulm, Brown County and Menard Inc. ISG designed the roadway and utilities

for this innovative project including the site work for the new store. The roundabout

features pedestrian/bike paths, crosswalks and lighting. It now serves as a model project

for the many others planned throughout the state.

www.is-grp.com

Alta Wastewater Treatment Plant

Alta, IA

Years of updating a 1950’s trickling filter treatment system led the City of

Alta to utilize ISG for an in-depth evaluation. Recent changes to water quality

standards required lower ammonia nitrogen and bacteria discharge limits

that could not currently be met. ISG recommended construction of a new

Aero-Mod, Inc. SEQUOX® activated sludge system, which results in high

energy efficiency and a smaller footprint compared to other activated sludge

designs, which lowers costs. The new treatment system has shown significant

improvement over the previous system, yielding an average reduction of

NH3-N by 91% over the treatment efficiency of the old plant.

Sumner Avenue Town Square

Humboldt, IA

A prime Main Street footprint left vacant by a demolished building

became an exciting and meaningful challenge for ISG planners and

designers. ISG was steadfast in their encouragement of city officials

to reinvest in the town center to help promote greater activity in

the downtown core and spur future economic growth. The ultimate

solution was a central public plaza and green space that supports a

vibrant public connection and creates a pedestrian connectivity to

the adjacent library. The completed Town Square features stamped

concrete pathways, a variety of seasonal trees and plantings along with

a central green space, which also serves as a wintertime ice-skating rink.

Alcoves with benches provide opportunities to gather as well as spots

for quiet reflection.

Fairmont Water Treatment Plant

Fairmont, MN

The City of Fairmont had utilized Budd Lake as a raw water source since 1897 when

the first pumping facility for raw water withdrawal was installed. The latest water

treatment plant was constructed nearly 80 years ago. When the city constructed a

new water treatment plant on an adjacent site, ISG teamed with specialized water

consulting firm, AE2S on the design and provided architectural, site design and land

surveying services. The project incorporated energy saving solar tube lighting and rain

gardens that reduce storm water runoff. It has been an uncompromising success, both

in terms of operations and water quality.

U.S. Highway 20

Sac and Calhoun Counties, IA

Iowa’s U.S. Highway 20 is a major east–west artery running across the state, from

Sioux City to Dubuque. Construction staking services were provided for a new route

extending through Sac and Calhoun counties. This four-lane expressway crossed

several state highways and streams, requiring the incorporation of multiple highway

overpasses and bridge crossings.

ISG controlled the machine grading for the entire project and for paving operations

on over 16 miles of roadway. Excellent contractor/ISG communications enabled a

successful completion well ahead of schedule. The contractor won a silver award in the

American Concrete Pavement Association Excellence in Concrete Pavement Divided

Highways (Rural) category.

South Front Street Reconstruction

Mankato, MN

Consensus-building design charrettes engaged business owners and

community and incorporated their feedback into the re-design of this historic

street in the Entertainment District of City Center Mankato. Three sections

of Front Street were reconstructed as part of a larger effort to develop more

pedestrian-friendly, civic plaza-type area. The streets were narrowed to slow

traffic and increase safety for bikers and pedestrians. The newly enhanced

plaza, land/streetscaping and widened sidewalks provide interaction with the

outdoor environment, give the area a public market style feel and expand the

capacity and outdoor seating options at local restaurants.

www.is-grp.com

CSAH 82 Stormwater Analysis and Storage

Mankato, MN

ISG completed the hydrologic/hydraulic study for Blue Earth County Public

Works on the reconstruction of CSAH 82 in Mankato, Minnesota. The project

included the reconstruction of culverts under the highway to provide drainage to

approximately 2,000 acres of urban and rural areas including Blue Earth County

Ditch 12, Wilson Creek and portions of MnDOT Trunk Highway 22. Working

with the City of Mankato, private developers and the county, a drainage system

was established utilizing in-channel storage, a created wetland and a two celled/

two stage pond system, the peak flows were reduced and the culverts were sized

accordingly to protect the highway and the land downstream.

Kingsley Wastewater Treatment

Kinglsey, IA

The City of Kingsley’s aerated lagoon was not capable of meeting changes to

Iowa’s water quality standards, particularly in the colder months. Following

a detailed analysis, ISG recommended retrofitting the existing wastewater

treatment lagoons using a Submerged Attached Growth Reactor (SAGR). The

SAGR is primarily designed to provide ammonia removal in cold to moderate

climates. An effluent ultraviolet disinfection system also allows the city to

meet more stringent bacterial limits during summer months. Since the Iowa

Wastewater Design Standards did not specifically address the SAGR process,

the IDNR stepped in to approve it as an acceptable alternative technology. This

project was one of the first installations in Iowa using SAGR technology.

Mankato Public Works Campus

Mankato, MN

City of Mankato leaders saw this former

Minnesota Department of Transportation’s

District 7 Headquarters as the ideal retrofit for

its new City of Mankato Public Works Facility

as it already provided for vehicle storage,

maintenance, material storage and offices. The

central location is also strategically positioned

for a new regional transit hub and headquarters

for City of Mankato Mass Transit.

This multiphase project consisted of an interior

cosmetic upgrade and office remodel in the

lower level including a large meeting room,

break room, conference room office space

and locker. The garage areas for trucks and

equipment, including extensive upgrades to

ventilation systems, was also renovated.

Trunk Highway 60 Expansion

Faribault, MN

The City of Faribault and the Faribault Area Chamber of Commerce invested in a Commercial Market

Potential Study which recommended improvements to the TH 60 / I-35 Interchange configuration.

Commercial developers required a proficient transportation system in order to assure traffic to their

district. The $2.5 million project converted 1,800 feet of two-lane highway into four-lanes, including turn

lanes. This extension also included the realignment and improvement of the 206th Street intersection,

including added traffic signals. A westbound left turn lane was added to the I-35 exit ramp onto TH60. In

addition to full engineering design, ISG provided topographic survey and right-of-way platting services.

SPECIALIZED PUBLIC WORKS EXPERTISE

Municipal Engineering

Infrastructure, roads, bridges, water and sewer systems—it’s

the foundation of every public works project. It impacts the

entire community. It’s how we get to work each day, how we

treat our natural resources, and what we look at when traveling

about our cities.

Municipal engineering is important work that demands highly

skilled engineers—engineers that are true experts in the

technical aspects of complex public projects. At ISG, our

civil engineers take their job a step further. They look at

infrastructure as a responsibility. Their job is to serve the people

and to work together with their fellow citizens to ensure a

thriving and healthy environment, smooth mobility and wise use

of public and private funds.

Transportation

Transportation networks, parking and pedestrian mobility

have tremendous impact on our communities, their economic

viability, citizen satisfaction, environmental health and future

development. At ISG, we work closely with our clients and work

diligently to engage and listen to community members, officials

and stakeholders so we can fully understand their needs, desires

and development objectives and meet them with safe and

efficient solutions.

We plan, design and manage projects for a variety of

transportation infrastructure including highways, streets,

bridges and designs for traffic control and detour plans. Our

multi-disciplinary team of experts are well versed in state and

federal funding mechanisms and they analyze projects and advise

clients on which improvements are good candidates for those

funding programs.

Land Surveying

At ISG, we do more than recognize the fundamental importance

of measuring and collecting accurate site data. When our clients

are provided with accurate maps and site information, they are

assured their investment is safe, the survey is true, and they

are building on a reliable legal foundation. Whether the project

requires simple boundary identification or a more complex

survey, ISG land surveyors accurately obtain information

using traditional survey methods complemented by the latest

technology, including in-house 3D laser scanning services.

Municipal Administration

There is a significant amount of work and extensive knowledge

necessary to efficiently run the day-to-day activities of a

municipality. City clerks and administrators work hard and wear

several hats—and they readily admit that often times some extra

assistance and expertise could benefit their city.

In the spirit of working ingenuity, ISG tapped our municipality

experts to offer administrative services and counsel. Our group

has former city administrators on staff that can help guide your

community in planning and zoning, community and economic

development and administrative needs.

Municipal Resource Planning

It’s inevitable. As our cities grow and age, there is a great need

for a variety of improvements to facilities and infrastructure.

Our planners and grant specialists have developed Capital

Improvement Programs to help cities prioritize improvements

and ensure public funds are used most efficiently.

We use our expertise to gather information and study your

proposed projects. We then develop weighted scoring criteria

that determine project importance. Finally, we provide accurate

project costs to assist decision makers as we develop the very

best foundation for the improvement plan. As part of the

plan, ISG will assist with exploring ways to best finance capital

improvements, including the potential for federal, state and

agency loans and grants.

www.is-grp.com

www.is-grp.com

ARCHITECTUREARCHITECTUREINTERIOR DESIGNLANDSCAPE ARCHITECTUREPLANNING

ENGINEERINGCIVILSTRUCTURALMECHANICALELECTRICALMUNICIPALLAND SURVEYINGTRANSPORTATION

ENVIRONMENTALTESTINGASSESSMENTSPERMITTINGPLANNING & FEASIBILITYGEOGRAPHIC INFORMATION SYSTEMS

PLANNINGCOMMUNITYMUNICIPALRESOURCES

Services