Depicting Utility Facilities in Design Plans: A Guide (2026)

Chapter: 5 Miscellaneous Topics

Previous Chapter: 4 Utility Depiction
Suggested Citation: "5 Miscellaneous Topics." National Academies of Sciences, Engineering, and Medicine. 2026. Depicting Utility Facilities in Design Plans: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29432.

CHAPTER 5
Miscellaneous Topics

5.1 Overview

This chapter addresses a range of important but often overlooked topics related to utility data management, including the financial investment and implications of data collection, the crucial role of ongoing coordination, the impact on project delivery, and common gaps in current processes. It emphasizes the need for strategic planning, the adoption of emerging technologies, and proactive risk management to ensure that utility challenges are transformed into opportunities for more efficient, safe, and cost-effective highway projects. Beyond the technical aspects of depicting utility facilities, the successful integration of utility information into highway design plans hinges on effective data management, strategic financial investment, robust coordination, and a clear understanding of current process limitations. Therefore, these topics are pertinent to discuss.

5.2 Financial Investment

The collection, verification, and depiction of accurate utility information represent a significant, yet often undervalued, financial investment. Understanding the resources required to perform these actions and the return on investment (ROI) is crucial for justifying these expenditures. DOT leadership will likely play a role in cultural shifts related to increased spending on utility data collection for projects. Otherwise, middle managers will likely focus on the bottom line of their own silo and miss an opportunity to secure overall savings for the project and DOT program. It is further important that value be explained beyond project dollars and include considerations of inconvenience and delays to the public and DOT staff.

5.2.1 Resource Considerations: Time, Cost, and Personnel

Effective utility data management demands the commitment of various resources throughout the project life cycle, including the following:

  • Personnel
    • Designers and engineers—Time allocated for reviewing utility data, performing conflict analysis, and designing solutions
    • Utility coordinators—Dedicated individuals or teams responsible for liaising with utility owners, managing agreements, and facilitating conflict resolution
    • SUE providers—Highly trained professionals required for geophysical investigations, vacuum excavation, and data interpretation according to ASCE 38
    • GIS analysts and data managers—Experts in managing, processing, and integrating spatial utility data into project platforms
Suggested Citation: "5 Miscellaneous Topics." National Academies of Sciences, Engineering, and Medicine. 2026. Depicting Utility Facilities in Design Plans: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29432.
  • Equipment and Technology
    • Software—Advanced CAD, GIS, and Building Information Modeling (BIM) platforms capable of handling and visualizing complex utility data
    • Communication tools—Platforms for efficient data sharing and collaboration with utility owners
    • SUE or utility investigation equipment—GPR, electromagnetic induction, vacuum excavation trucks, and associated tools
    • Surveying equipment—Global Positioning System rovers and associated tools
  • Time
    • Early engagement—Allocating sufficient time at the projectʼs inception for utility research, data requests, and initial coordination meetings
    • Data collection and processing—Time required for field investigations, data compilation, quality control, and integration into design models
    • Coordination meetings and negotiations—Ongoing time investment for regular meetings, resolving conflicts, revising the DOT design, and finalizing utility agreements
    • Permitting and approvals—Time for obtaining necessary permits for utility relocations or adjustments

These resource considerations highlight that utility management is not a one-time task but an ongoing process that requires dedicated funding and staffing.

5.2.2 ROI in Collecting and Depicting Utility Information

While the upfront investment in comprehensive utility data collection and depiction may seem substantial, the ROI is significant and often far outweighs the initial costs. The benefits manifest in the following key areas:

  • Improved design efficiency—Perhaps the greatest ROI is realized in eliminating unnecessary relocations, which directly affects utility partnerships long-term, which further increases the reliability of the DOT in delivering its program and reduces risks in construction bids and schedules.
  • Reduced project delays—Accurate utility information minimizes unforeseen conflicts during the construction phase, preventing costly schedule overruns caused by utility strikes, redesigns, or unnecessary or unexpected relocations.
  • Lower construction costs—Avoiding utility strikes, which can lead to costly repairs, fines, and service disruptions, and reducing the need for change orders due to undocumented utilities directly translate to cost savings and lower project bids due to reduced risks. As contractors become aware of a DOTʼs completion of comprehensive utility data collection and depiction, they begin to trust in the DOTʼs plans and utility information. When conflicts arise between a DOT and One Call information, the contractor can seek a resolution from a well-informed DOT utility coordinator, thereby elevating trust and reducing the risks and costs included in bids to cover those risks.
  • Enhanced safety—Knowing the precise location of utilities significantly reduces the risk of injury or fatality to construction workers and the public from accidental strikes of gas lines, electric cables, or other hazardous utilities. Again, if conflicts with One Call markings are noted, resolutions would be sought in lieu of overly trusting the markings, thereby improving safety.
  • Improved design efficiency—Designers can proactively incorporate utility constraints into their plans, resulting in optimized designs that minimize conflicts and the need for costly redesigns later.
  • Expedited permitting and approvals—Comprehensive utility plans facilitate smoother interactions with utility owners and regulatory agencies, thereby streamlining the permitting process for relocations or adjustments.
  • Minimized claims and litigation—Fewer utility-related issues during the construction phase result in fewer contractor claims and disputes, as well as less potential litigation, thereby protecting the project owner from significant financial liabilities.
Suggested Citation: "5 Miscellaneous Topics." National Academies of Sciences, Engineering, and Medicine. 2026. Depicting Utility Facilities in Design Plans: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29432.
  • Preservation of public services—Proactive utility management ensures that essential services (e.g., water, power, communication) are maintained or seamlessly transitioned during the construction phase, thereby minimizing disruption to the public.

In essence, investing in thorough utility data management is a form of risk mitigation, preventing far more expensive problems later on and contributing to the projectʼs overall success.

5.3 Coordination

Effective coordination is the cornerstone of successful utility integration in highway projects. It is a continuous, multifaceted effort that extends beyond initial data collection to encompass ongoing communication and collaboration with all stakeholders. Utility coordination is not a single event but a dynamic process that requires sustained engagement throughout a projectʼs life cycle.

A common misconception is that utility coordination occurs mostly in isolation and is performed by the utility group. Conversely, successful and efficient utility coordination requires collaboration among most disciplines involved in project development. Utility awareness across the planning, design, ROW, environmental, construction, and maintenance project phases is essential for the effective delivery of a state DOTʼs highway program of projects. One major component requiring such collaboration is the depiction of utility information in project designs, as well as the collection of as-builts following relocations and construction. Representing utilities in project plans is crucial for effective coordination with utility companies and project teams to identify and manage conflicts with utilities. It is essential for all parties involved to understand which utility providers are involved and know the locations and attributes of those utility facilities. Providing comprehensive and accurate utility depictions is the most effective way to communicate this vital information to all parties.

To ensure the depiction represents a more complete understanding of the existing infrastructure, key elements should be notated in addition to the depiction of lines with attribute details, such as the utility owner, size, and age; material type; and the source of the utility information, whether from SUE, surveys, or utility-provided maps. Ideally, in complex utility projects, SUE data provide the most useful data to stakeholders. When SUE services are scoped to fully investigate a project area, a significant reduction in time and risk is expected. However, utility representation in project plans can also be derived from a combination of SUE and other utility investigation efforts, such as a survey of utility data collected from topographic surveys and utility records from various sources. When utility lines are depicted with the certainty of that location (i.e., quality level information provided by SUE partners), the project team can proceed with confidence.

Some may argue that the time, effort, and costs associated with accurate mapping and depiction may not be worthwhile. However, studies from state DOTs using SUE, FHWA, and NCHRP projects show that the benefits far outweigh the costs. Proceeding with a design that lacks complete utility information can lead to decisions being made without adequate data, resulting in the need for time-consuming and costly unnecessary utility relocations, project delays due to unknown utilities found in construction, redesign efforts, and additional expenses. All of these inconveniences require additional human resources to address.

Effective coordination fosters a collaborative environment, allowing for proactive identification and resolution of utility conflicts, ultimately leading to smoother project delivery.

5.4 Project Delivery and Process Gaps

The integration of utility data management varies across different project delivery methods, and recognizing common process gaps is essential for continuous improvement.

Suggested Citation: "5 Miscellaneous Topics." National Academies of Sciences, Engineering, and Medicine. 2026. Depicting Utility Facilities in Design Plans: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29432.

5.4.1 Integration with Project Delivery Methods

In design-bid-build (DBB), utility coordination and design are typically completed during the design phase. Ensuring utility depiction and conflict resolution are comprehensive is crucial before bidding to minimize change orders during the construction phase. The owner bears the risk of unknown utilities.

However, design-build methods often shift more utility risk to the contractor. Early and accurate utility data provided by the owner (or collected by the design-builder) are paramount. The design-builder is responsible for integrating utility solutions into their overall design and construction plan. The availability of data and timeliness may occur very differently from DBB.

As a final alternative delivery method discussed here, the construction manager/general contractor method allows for early contractor involvement, which can be highly beneficial for utility coordination.

The contractorʼs constructability expertise can inform utility solutions and scheduling from the outset. The data and depiction in this method can closely follow that of DBB.

Regardless of the delivery method, the principle remains: The earlier and more accurate utility information becomes available, coordinated, and depicted, the better the project outcome will be.

5.4.2 Gaps in Current Processes

Despite advancements, several common gaps often hinder effective utility data management and depiction. Utility owners are often brought into the project too late, after significant design decisions have been made, resulting in costly redesigns or delays. This delay can be exacerbated by an underinvestment in SUE investigations (especially in Quality Level A exposures), which results in relying on less accurate data, leading to unforeseen conflicts during the construction phase. As previously mentioned, inconsistent and insufficient data are also major problems.

Additional gaps include the significant limitations involving utility as-builts. Many utility as-built records are inaccurate or incomplete, making initial data collection challenging. Seemingly, gaps also exist in utility owner processes regarding these records.

Internal to the DOTs are process gaps related to siloed information, a lack of staff, and resistance to new approaches. Utility data may reside in disparate systems within a DOT or across different utility owners, making a holistic view complicated. The thought that another silo is managing utility data and conflicts is also too commonplace. Dedicated utility staff are often insufficient in number or unavailable, and projects may lack sufficient dedicated personnel with the expertise to manage complex utility coordination efforts. Lastly, even though known effective practices exist, DOT staff are often reluctant to adopt new technologies or processes for utility management, which perpetuates inefficiencies.

Addressing these gaps requires a commitment to process improvement, technology adoption, and collaborative partnerships.

5.5 Strategic Planning and Emerging Technologies

A forward-thinking approach to utility depiction and data management involves strategic planning and adopting innovative technologies. Establishing clear agencywide policies and procedures for utility coordination, data collection, and depiction is essential. This approach must also be a cross-silo endeavor. Implementing robust systems for archiving and updating utility data for future projects and asset management is also necessary. This effort will require state

Suggested Citation: "5 Miscellaneous Topics." National Academies of Sciences, Engineering, and Medicine. 2026. Depicting Utility Facilities in Design Plans: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29432.

DOTs to develop protocols and security procedures and partner with utility owners to build trust for data-sharing purposes. Investing in training for project staff on best practices in utility coordination, SUE technologies, and relevant software will help in these regards.

Technological advancements are continuously improving the accuracy and efficiency of utility data management. BIM for Utilities will integrate utility data into 3-D BIM models and allow for advanced visualization, clash detection, and coordination with other infrastructure components. This information can then be leveraged to sophisticated GIS capabilities for spatial analysis, data integration from multiple sources, and real-time data updates.

Mapping for utility as-builts is becoming increasingly accurate and easy to capture. Drone mapping and photogrammetry can quickly capture high-resolution imagery and develop 3-D models of visible utilities. With this advanced data collection, AI and machine learning can play larger roles for utilities for work such as automated clash detection and predictive analysis for utility damage (machine learning can analyze historical utility strike data to identify high-risk areas or types of utilities, thereby informing proactive SUE investigations); AI can also assist in interpreting geophysical data (e.g., GPR scans) to more accurately identify underground features. Augmented Reality and Virtual Reality can overlay utility data onto real-world views or immerse users in virtual environments, enhancing the visualization and understanding of complex utility layouts in the field or during design reviews.

Embracing these technologies can significantly enhance the precision, speed, and comprehensiveness of utility data management.

Suggested Citation: "5 Miscellaneous Topics." National Academies of Sciences, Engineering, and Medicine. 2026. Depicting Utility Facilities in Design Plans: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29432.
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Suggested Citation: "5 Miscellaneous Topics." National Academies of Sciences, Engineering, and Medicine. 2026. Depicting Utility Facilities in Design Plans: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29432.
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Suggested Citation: "5 Miscellaneous Topics." National Academies of Sciences, Engineering, and Medicine. 2026. Depicting Utility Facilities in Design Plans: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29432.
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Suggested Citation: "5 Miscellaneous Topics." National Academies of Sciences, Engineering, and Medicine. 2026. Depicting Utility Facilities in Design Plans: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29432.
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Suggested Citation: "5 Miscellaneous Topics." National Academies of Sciences, Engineering, and Medicine. 2026. Depicting Utility Facilities in Design Plans: A Guide. Washington, DC: The National Academies Press. doi: 10.17226/29432.
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