By Paul Kivisto, P.E., Senior Structural Engineer, WSB

Did you know that the average life span of a bridge is 60 – 70 years? There are a number of ways to reach or exceed that average. Newer materials like high performance concrete and epoxy/stainless steel rebars certainly improve the quality and longevity of a bridge. Regular bridge inspections are not only legally required, but by inspecting and documenting issues with your bridges you can hopefully slow the expected deterioration and make repairs early which often costs less.

MnDOT, counties, cities, townships, and tribal governments are all responsible for managing bridge assets within their jurisdiction. Many of these entities have inspectors on staff to perform inspections, while others contract out that work to private firms like WSB. Maintaining regular and accurate inspection data is necessary to ensure public safety, reduce liability, maintain accurate budgeting, and comply with state laws and regulations.

Five important aspects of bridge inspections

About Documents, Frequency, and Inspection process

MnDOT releases the Bridge and Structure Inspection Program Manual (BSIPM) which summarizes inspection guidelines. In Minnesota, all bridges and culverts over 10’ long and carry traffic or are over roadways must be inspected. An initial inspection is required within 3 months of opening to traffic. The typical inspection frequency is 24 months, with shorter time periods for bridges in poor condition. The bridge owner can request longer than 24-month cycle for culverts. The latest version is May 2021 and can be viewed here: https://www.dot.state.mn.us/bridge/inspection.html.  

Bridge Condition Codes

BSIPM Chapter B – Bridge Inspection Field Manual and Chapter D – Recording and Coding Guide should be used by inspectors during all inspections. Physical condition and geometric properties of each bridge are recorded on inspection and inventory forms.

  • Overall condition codes from the National Bridge Inventory (NBI) range from 9 (new) to 0 (closed) and track the overall condition of the superstructure, substructure, deck, culvert, and other elements.
  • More detailed element level inspections record percentages of elements in conditions ranging from 1 (new) to 4 (severe deterioration).

The owner must report inspection and inventory data through the Structure Information Management System (SIMS) database to MnDOT every year.  MnDOT in turn provides the data to the Federal Highway Administration (FHWA).

Channel Inspections/Waterway/Scour

One of the leading causes of bridge failures is scour or undermining of the substructures in, or adjacent to, water. Scour is the term used to describe the erosion of soil surrounding a bridge’s foundation. When fast-moving water moves sediment from around the foundation, it creates scour holes adjacent to substructures that must be identified and monitored. Degradation of channels can cause shifts in the channel and may increase the risk of undermining. Bridges that cannot be inspected by wading and probing must be included in the statewide underwater inspection program on a 48-month cycle. Channel cross-sections are required for scour critical bridges and recommended for unknown foundations and scour susceptible bridges.

Additional causes of bridge deterioration to be aware of include:

  • Rebar and steel corrosion due to chlorides
  • Delamination and spalling on concrete members
  • Shrinkage cracking in concrete
  • Fatigue cracking on steel beams
  • Vehicle impacts to members
  • Leaking expansion joints
  • Bearings moved out of position
  • Timber decay

Drone Inspections

Increasingly, drones are used to provide access to hard-to-reach portions of bridges. They have photographic and video capabilities that allow them to identify cracking, spalling, and other deterioration that is otherwise challenging to document. Drones have the additional benefit of using Infrared (IR) cameras to identify delamination and distress below the surface.

Engaging with the Inspection Data

Agencies should use inspection data to help identify maintenance, preservation, improvement, and replacement projects. It is critical that accurate inspection data be maintained to track deterioration over time and prioritize maintenance work. Additional detailed inspections may be needed to help put together a system-wide scoping analysis or bridge management plan (BMP).  A thorough BMP can help identify funding needs over a given budgetary cycle.

Paul has more than 36 years of experience in bridge construction, bridge management, bridge inspection, and bridge design. In his role as Metro Region Bridge Construction Engineer for MnDOT’s Bridge Office, Paul was responsible for writing foundation recommendations, bridge preservation and improvement recommendations, constructability reviews, recommended repairs, and identified projects for inclusion in MnDOT’s bridge preservation program.

[email protected] | 612.201.9163

The multi-dimensional designs are for the Highway 169 Redefine – Elk River project

Engineering and consulting firm WSB announced today that they will deliver the first set of fully digital paperless design plans to the Minnesota Department of Transportation (MnDOT).  The paperless plans will be delivered later this summer for the Highway 169 Redefine – Elk River project.

“The 3D Design Model has allowed us to see the design in a whole new light. We are able see design changes on the fly that provides MnDOT with greater flexibility in the decision-making process,” said MnDOT’s Darren Nelson, Highway 169 Redefine – Elk River project manager.

Historically, the Architecture Engineering Construction (AEC) industry has been paper-heavy with many DOTs across the nation still requiring traditional plans. The transition to paperless is impacting the entire AEC industry, including DOTs, general contractors and civil engineers.

For the project, WSB advanced the methods and procedures used to implement a Building Information Modeling (BIM) design approach. The approach will result in improved project cost, better risk management and improved quality. The BIM model is built from available data and is highly accurate. The model creates a seamless workflow from design through construction and will import information to the field digitally resulting in efficiencies and better communication.  Once construction is complete, the project is left with an as-built, accurate model that can be used for asset management in the future.

“As engineers, we are motivated by the opportunities to design infrastructure projects that support our communities and this project is no exception,” said Jon Chiglo, WSB’s chief operating officer. “It’s very rewarding to partner with MnDOT to shape the way our entire industry will deliver projects. Based on the benefits, digital delivery is the future and it’s exciting that WSB is leading these efforts.”

To date, the combination of the 3D BIM Model, 4D Model and 5D Cost Structure within a digital design environment has led to many cost savings and benefits even before construction has begun. The true, virtual representation of what will be built has allowed stakeholders to easily review the project impacts.

MnDOT received special funding to convert Highway 169 from the Mississippi River to 197th Ave. to a freeway system through Elk River. The project will convert four at-grade intersections into interchanges and will modify the access of the Highway 169 and Highway 10 interchange. WSB is responsible for delivering the final design.

By Nate Osterberg, Pipeline Inspector, WSB

Effective January 14, 2021, the Colorado Department of Transportation (CDOT) will mandate that all new permitted utility installations meet Digital As-Constructed Requirements (DAC) in accordance with the Utility Accommodation Code Rule 3.3.4.6.2.  New requirements under State Highway Accommodation Code, 2 CCR 601-18, Rule 3.3.4.6.2 Digital As-Constructed Requirements, Plan and Profile 3.3.4.3 mandate uniformity in utility mapping, as-builts and plan-and-profile submissions. Utility permits will begin stipulating this requirement soon.  Additionally, there are new Plan and Profile requirements for all Horizontal Directional Drilling (HDD) operations within CDOT’s Right of Way.

But what does this mean?

Essentially, this means that anyone working within CDOT’s Right of Way must perform a digital utility locate survey for any underground utilities – commonly known as Subsurface Utility Engineering (SUE).  The survey must be submitted using their chosen software. 

What is SUE?

SUE is an engineering practice used to obtain reliable underground utility information. Accurate and successful SUE practices benefit contractors, transportation departments and utility companies by limited the need for unnecessary utility relocations, avoiding unexpected conflicts and enhancing safety.

How do I do this digitally?

You combine the right tools with the right expertise. The digital world of 3D modeling can be intimidating, but a digital approach is actually more accurate, efficient and safe. Using mobile mapping software, utilities can be captured, recorded and displayed precisely accurately and seamlessly. 

Learn more about our complete Pipeline services or Utility Mapping and how to prepare for upcoming requirements.

Nate Osterberg has over 12 years of experience in the utility industry and specializes in utility inspection for WSB’s Pipeline group. Nate’s expertise lies in managing inspection staff technology implementation, scheduling and quality control in addition to CFR 192/195 inspection, damage prevention and GIS-based web mapping.

[email protected] | 612.202.2997

Nate Osterberg

By Do Nam, Sr. Traffic Operations Engineer, WSB

Construction operations on roadways disrupt normal traffic flow and generate undesirable delay. As traffic continues to increase throughout many metro areas, the Federal Highway Administration has been encouraging DOTs to be more proactive in their maintenance of traffic during construction. 

Good construction staging provides safe and efficient traffic operations throughout a project to minimize impacts on the community during construction. WSB has begun development of traffic models that simulate the flow of traffic under different staging scenarios. These traffic simulation models consider all available routes, how construction will impact these routes and how much additional time this will add for commuters. These models are being used to determine if there are improvements that need to be made on any surrounding routes to allow for better operations throughout construction.

This new approach is more proactive than past construction staging methods and is based upon data. By modeling actual construction conditions, we’re able to pinpoint where potential challenges may occur during construction and how to avoid them. Below is a list of potential benefits of construction staging and maintenance of traffic modeling using traffic simulation.

The benefits of advanced traffic simulation for construction staging and maintenance of traffic

  1. By understanding what the impacts to the community are, we can be more proactive in mitigating them.
  2. If we better understand what routes traffic will use, we can ensure that traffic controls are set up to accommodate additional traffic volumes.
  3. Limit changes can be evaluated.
  4. Informs decisions on critical maintenance items.
  5. Provides a public engagement tool for cities and residents.

Through advanced traffic simulation technology, we’ve been able to enhance construction staging plans resulting in better projects.

Do has been a civil engineer in the transportation field for over 25 years. His experience includes modeling, operational analysis, design and Intelligent Transportation Systems (ITS) of large-scale transportation projects in both the United States and Qatar. Do has successfully managed over 30 major transportation and research projects utilizing traditional macroscopic travel demand forecasting modeling and state-of-the-art microscopic traffic simulation modeling techniques.

[email protected] | 763.760.8090

By Paul Kyle, Project Engineer, WSB

Construction projects are complicated and include many moving parts. One way to help assure a project’s success, is to engage in a constructability review early in the design phase of a project to make sure all those moving parts are working together as efficiently as possible. These reviews give a second set of eyes to examine your project’s plans and specifications to address areas of risk, identify areas for cost savings, and reduce claims during construction with minimal additional cost or turnaround time. Having an experienced professional provide independent review and suggestions from the viewpoint of a contractor bidding on the project can result in more bidders, better and more competitive pricing, as well as a high-quality and less risky bidding and construction experience.

However, constructability reviews can often become superficial and ineffective due to a lack of understanding of the process, improper implementation, and limited resources. By better understanding the process, the odds of success increase. Below is a list of 5 ways a constructability review can impact a project.

Knowledge of Construction Means and Methods

Effective constructability reviews begin with an in-depth evaluation using knowledge of standard construction methods, materials, and techniques so a project can be analyzed from a construction or field standpoint. Reviewing a project from this perspective evaluates things like the equipment needed to complete the work, environmental or spatial constraints, and installation procedures for the materials being used. Considering these items results in fewer issues during construction and fewer changes in scope.

Understanding of Contract Documents, Specifications, and Special Provisions

Providing a constructable project with transparent and well-defined expectations in the plans and specifications increases the likelihood of more potential bidders on the contract. Clarity in these project documents and specifications supports a clear approach to the project allowing contractors to provide more competitive and accurate bids.

Discipline-Specific Expertise and Resources

Discipline-specific knowledge and resources eliminate the potential for missed or overlooked details resulting in delays or open-ended contract requirements. Expert understanding of specific materials, practices, and specifications leads to an efficiently planned construction project that will stand the test of time.

Understanding of Contractor Scheduling and Bid Methods

Understanding contractor production rates and bid methods reduces the risk of project delays, missed completion dates, and uncertainty in bidding. Knowing how to accurately predict the contractor’s approach, sequencing of work, and bid methods will result in reduction of claims, change orders, and non-competitive or high bidding. Thus, increasing the overall likelihood of an on-time and on-budget completion of the project.

Delivering Intended Project Scope

The goals and purpose of a project often have significant influence over the design process but can sometimes be lost in the transition between design and construction. Incorporating construction specific personnel into the design process ensures the project’s original objectives are integrated into the plans and maintained during construction.

Paul has nine years of experience in construction services and is MnDOT certified in several disciplines. His expertise includes project management, quality engineer, project design, construction inspection, contract administration, record documentation, and materials testing. Paul’s experience as a contract administrator and quality assurance make him a valuable asset to any project.

[email protected] | 612.360.1310

By Eric Breitsprecher, Project Manager, WSB

Construction inspection is essential for successful project delivery. Whether it’s reviewing project specifications on-site or documenting changes to an existing plan, inspection is necessary to meet industry standards for accuracy, quality and to keep construction work on time and within budget.

Here are five reasons to consider construction services on your next project.

Successful delivery is in the details. Reviewing the contract closely and building out the approved project scope ensures each deliverable is accurately executed for the client. Detailed record keeping and photo documentation is important to ensuring a project is delivered to client standards.

Real-time inspections and instant information sharing. Monitoring project information from the field through real-time data collection provides enhanced reporting, faster processing and improved data management. Cutting-edge tools allow for real-time solutions that minimize risk to both clients and the general public. Quick information sharing and communication between the owner and contractor can be critical in addressing urgent problems.

Infrastructure is built to last. Building a strong framework is important for any project. Quality designs support and build safer communities. Throughout the design and constructability review process, quality construction inspection keeps projects on time and on budget.

Avoid future maintenance costs. Construction inspectors oversee the work and are responsible for anticipating risk, communicating with the contractor and documenting progress and possible construction or design issues for the owner.

Streamline inspection processes with GPS Rover. GPS Rover technology can be applied to improve efficiencies and track site coordinates and measurements for any project. By using GPS technology to track quantities, inconsistencies are reduced by transferring recorded field data and displaying on auto-generated plan sheets.

Eric has over 25 years of experience in road and bridge construction contract administration including quality management of bid-build and design-build projects over the past 18 years at MnDOT. He is certified in MnDOT, ACI, and University of Minnesota disciplines including bridge and ADA construction, and erosion control site management. He has managed several types of construction projects for MnDOT and various counties, most notably the 35W bridge replacement project. His commitment to bring all parties into a collective partnering atmosphere has provided resolutions to conflicts and project issues at a great reduction in project delays.

[email protected] | 507.601.7738

By Zach Kolsum, Environmental Compliance Specialist, WSB

Conducting inspections on infrastructure projects can be daunting, especially when they require extensive reporting and legwork to comply with local, state and federal regulations. Fortunately, there are technological tools available to assist environmental compliance and construction inspection, which streamline the arduous process of data collection and reporting for clients. Using standardized software, WSB provides the necessary equipment and materials to conduct a variety of inspections, enhanced reporting and automated data collection.

Enhanced reporting

Electronic inspections offer an effective way for teams to visualize the work being done onsite. Data is collected and compiledusing a software application to generate a list of report leads. Project partners can share critical information instantly using the visual media tool.

Share project information quickly

Depending on the project, problems that arise during inspection can be costly and take valuable time away from clients and shareholders as they work to find a solution. WSB provides automated reporting and digital photo sharing with the click of a button to the entire project team. Reporting is tracked through an online database and clients can save documents and project findings in the application archive. Sharing project reporting instantly between team members is an easy way to monitor and ensure work is progressing on schedule.

Manage your data

Leveraging the use of mobile devices for inspection improves the effectiveness of field data collection by integrating mapping and field technologies into a single workflow. This methodology also minimizes the possibility of human error which increases the quality of data overall. Collected information is analyzed using a powerful search engine that identifies trends and future forecasting.

Use Datafi for Environmental Compliance inspection

WSB’s Environmental Compliance and GIS groups worked together to develop Datafi, a mobile-friendly mapping and workflow tool to improve the environmental compliance inspection process. Datafi is a field-to-office data management solution that has allowed multiple groups within WSB to actively and efficiently inspect numerous project sites to ensure compliance. Datafi is used on small and large-scale projects including housing and land developments. Our team of inspectors have benefited from Datafi’s enhanced reporting, efficiency and improved data management in the field.

As tedious as documentation management may feel at times, it is an essential part of any program development. Discovering new ways to refine processes is paramount for keeping information as reliable and accessible as possible. We believe utilizing technology allows project teams to focus more heavily on the technical aspects of the work and bringing their client’s vision to life.

Zach is an Environmental Compliance Specialist dedicated to improving his community. He has a strong understanding of federal and state regulations, providing technical, administrative, and operational support for a variety of clients concerning NPDES regulations (MS4, construction, industrial permitting) and compliance with the Clean Water Act. Zach is committed to improving his community through environmental and conservation services, including soil erosion and stormwater management.

[email protected] / 612.201.6809

Mike Rief is our Senior Vice President of Construction Services. He plays a critical role on our construction team by driving projects forward through his leadership. In this Q&A, Mike reflects on his experiences at WSB and shares his vision for the future.

Q: You’ve been with WSB for almost 15 years. What aspects of WSB make you excited about work?

I really enjoy the people I work with not only in the Construction Services Division, but throughout WSB. We have a lot of talented, motivated and passionate people and it’s fun to draw from their excitement and energy in our daily work, pursuit of work and development of plans and projects.

Q: So far during your time at WSB, what has been the most memorable moment?

There have been many memorable moments during my time, but a couple that stand out are the collapse and reconstruction of the St. Anthony Falls 35W Bridge. That project presented a lot of firsts for WSB. We were brought in to provide two to four staff for Contractor Quality Assurance. Because of our efforts, we eventually had more than 50 staff providing field support in the construction of the $234M project. We had a great team who delivered the contract administration, inspection, testing and documentation. We worked 24/7 for nine months through one of Minnesota’s coldest winters to successfully deliver the project. The other memorable moment, still very special to me, is winning the 2012 TH 90 Dresbach Bridge and Interchange Contract Administration and Oversight. This project was a significant milestone for our firm.

Q: How are our clients involved throughout the construction process?

Involvement varies significantly depending on the client. Every project is unique, and we take that into consideration. We welcome client involvement and engagement as part of our process. We work to find a balance with the client to ensure their needs are met and that they are satisfied with the administration of the project, the final product and resident perception.

Q: Our culture drives our curiosity. How does curiosity drive the construction team?

The people who are most successful in the construction industry are problem solvers by nature. That creates a certain level of curiosity in the way we perform our jobs. We ask questions and are not afraid to ask why and provide recommendations on better ways to address a challenge. It’s our staff’s curiosity that drives our innovation and improvements. We are constantly pursuing improvements to our process and the way we work and this has been the foundation of many enhancements throughout WSB.

Q: How do you think WSB stays innovative and inspired in times of uncertainty?

I think in some cases, it’s the uncertainty that creates the inspiration and innovation. Our staff is good at finding opportunities to expand services or develop new technologies. If you look back to the Great Recession, our firm grew by adding new services and exploring new markets. We’ve faced uncertainty recently when navigating the challenges surrounding COVID-19, but I’ve admired the ways our staff are identifying new ways to perform their work, deliver projects and stay engaged.

Q: What makes our construction services offerings unique?

We offer a broad range of services that complement each other. We also have become specialized in the areas of Contract Administration, Surveys, Pipeline, Environmental Compliance, Project Controls, Geotechnical, Materials, Pavements and Geohazards. All of these service areas work together by sharing knowledge, resources and lessons learned. We have strong relationships with all divisions in WSB and work collectively to deliver projects.

Q: How do you think our construction services are set up for future success?

We have become very competitive over and continue to meet the needs of our clients. We are making significant investments in our staff, training and technology. We are investing in other service offerings, new markets and new industries. Continuing to evolve and explore new markets both geographically and from a service offering perspective will help position us for continued success in the future.

Q: What are you most excited for in 2020?

2020 didn’t start the way we had hoped. The COVID-19 situation has created some uncertainty for everyone in all industries. Moving forward, I’m most excited for our season to progress and our staff to get out on projects. How we do work in the future will look different to us and it’s exciting that we are able to help define what that will look like.

Q: Inspiration is paramount to our work at WSB. What inspires you?

I draw inspiration from a lot of different areas. First, I tend to be a little competitive so, I enjoy the pursuit for projects. I also draw inspiration from our staff. Seeing our staff experience success, solve a problem or learn something new is a motivator. After 30 years in the industry, I’m still learning and sharing knowledge with others and it is really rewarding to have others do the same with me. Seeing staff, clients and contractor partners get excited about their jobs is something that should inspire all of us.

WSB is thrilled to partner with the Minnesota Department of Transportation (MnDOT) to provide final roadway and bridge design services for the Highway 169 (TH 169) Reconstruction Project.

TH 169 is a significant north-south highway in Minnesota. It serves rapidly developing communities and is a gateway to exploring recreational areas in Greater Minnesota. The highway is heavily traveled by both vehicles and pedestrians. Expanding the highway is intended to improve safety and reduce the average rate of collisions in the area.

Jody Martinson, vice president of transportation at WSB, anticipates this project will have a lasting impact and looks forward to delivering a safer commute for surrounding communities.

“This project is incredibly important to users of the TH 169 corridor,” said Martinson. “Being able to work side-by-side with MnDOT to improve the safety and mobility for motorists and pedestrians is extremely gratifying. WSB is excited to utilize technology and innovative solutions to improve the efficiency of design and construction.”

The reconstruction will address operational, infrastructure and mobility issues, all important elements considered when the project was selected for the Corridors of Commerce (CoC) program. The project will replace four signalized intersections with interchanges and consolidate access points, drastically improving safety and mobility. Local roadways will be reconstructed to create ADA accessible routes at the interchanges. The TH 169 project is expected to reduce roadway delay by more than 1,000 hours per day, eliminate $1.7 million in annual crash costs, and provide more reliable travel times for the public.

The project is also a CMGC project. As a CMGC (Construction Manager/General Contractor), the process will involve several stakeholders and team members throughout the design and construction process. The project will also require strong coordination and communication with MnDOT. Project manager, Peter Muehlbach formed an expert team to ensure the CMGC process is efficient, effective and economical for reconstruction.

“When fully utilized, the CMGC design process allows for a more collaborative work environment between designer and contractor,” said Muehlbach. “I am excited for the opportunity to make design decisions together with our MnDOT, Sherburne County, city of Elk River and Ames Construction partners.”

Additionally, the project team will leverage state-of-the-art and emerging technologies to provide sustainable solutions during the design phase. By utilizing modeling tools, WSB will streamline construction management, drainage and utility relocation processes.

Planning for the TH 169 Reconstruction Project is underway with final design set to begin this summer. Phased construction will begin in fall 2022 with project completion set for 2024.

Brandon Movall, Graduate Engineer, WSB

Road reconstruction projects affect residents of all cities, from large metropolitan areas to small rural centers. While residents are very familiar with the sight of bright orange cones and excavating machines that are shown for a few months in the summer, few know the full amount of work that goes into improving roads and public utilities the rest of the year. Here is a season by season breakdown of how a road reconstruction project comes to life:

Summer/Fall

The summer/fall season is when work on a specific project typically begins for the upcoming construction season, with the start of preliminary design. Depending on the size and complexity of the project, preliminary design can begin months or even years earlier than this time frame.

The preliminary design begins by collecting extensive information on the existing conditions of the public infrastructure in the project area. This can be done through a topographic survey of the area, taking geotechnical readings on the materials in the area, and even reviewing asset management systems or old plan sets for the project area.

Based on the information gathered, the project team (typically consisting of transportation and municipal engineers) can identify improvements needed within the project area. The team then provides a preliminary overview of proposed improvements to the project owners, private utility companies such as gas or electric that could be impacted, residents, business owners and other stakeholders in the project area. At this point, public engagement becomes critical to connect with the owners, companies, and residents to solicit feedback on the proposed improvements and gather additional information on existing conditions. This feedback can be achieved through neighborhood meetings, showcasing visualizations, and conducting community surveys.

After gathering feedback, the project team presents the proposed infrastructure improvements along with estimates on costs and schedule to the project owners, and, if the project is still supported, begins final design.

Fall/Winter

The fall/winter season is dedicated to final design of the project. The team (supported by site & landscape designers, water resource engineers and wastewater engineers) completes final design documents that specialists in infrastructure construction techniques will use build the project. These documents will complete the city’s vision for the project while ensuring it is properly engineered and safe for residents. The design includes not only the pavement that residents drive on, but also all of the public utilities in the project area, such as storm sewer, sanitary sewer and watermain.

During this time, the project will also be reviewed by permitting agencies that have jurisdiction over certain aspects of the project. These agencies, such as a county or state transportation agency, may have jurisdiction over neighboring roads. Other agencies, like a state departments of natural resources, may review the project for environmental regulations within the project area.

Once the plans and specifications are complete, the project team will share the finished design documents with the project owner. The project is then authorized to be bid for construction.

Winter/Spring

The spring season is used to bid the project and prepare for construction. After the project is authorized to be bid, a notice goes out to contractors notifying them of the project and providing them access to the plans and specifications. If a contractor is interested in constructing the project, they submit a set of documents to the project owner. These documents include insurance information, proof of bonds, and their bid of how much they believe it will cost to construct the project. At an arranged time, a contractor will be selected from those that submitted a bid.

Once a contractor has been selected, project management and construction administration begins. Preliminary construction meetings are held with the project owners, the project team, and other stakeholders, to prepare for the upcoming construction of the project.

Spring/Summer

After the preliminary and final designs are complete, construction -the most visible stage of a project – can begin during the spring/summer season. During this time, the project team monitors contractor progress on the project, and ensures that the construction is being done according to the plans and specifications that were prepared in the fall/winter. This monitoring consists of a variety of activities that include construction material testing, environmental compliance, and more.

Because the winter season is often the longest in the Midwest, the time frame for construction is extremely short. To protect the final product, some projects require contractors to wait until after winter to finish minor paving and restoration work during the following spring/summer season.

Once all of the work is complete and accepted by the project owner, the contract is finalized and closed out. Usually a maintenance period is required of the contractor, during which time they are responsible to address any workmanship or materials defects which are identified following close out.

At this point, the project is considered complete. The project owner is responsible for ongoing maintenance and repair of the infrastructure through their Public Works Department. The new seasonal cycle begins with the next project that was prioritized or identified within that community’s Capital Improvement Plan or similar planning document. Learn about how WSB can assist your community with any or all of these project cycles by visiting https://www.wsbeng.com/expertise/community/ or clicking on any of the linked services above.

Brandon is a Graduate Engineer with WSB and serves as the assistant city engineer for the City of Sunfish Lake, MN. He is experienced with reviewing developer and residential land development plans and management of cities’ Municipal State Aid Systems (MSAS) through the Minnesota Department of Transportation (MnDOT).

People working at a table.

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