The polylines represent underground utilities such as cable TV, gas, oil, and telephone lines across various areas of Los Angeles County. All data were collected from LA County Substructure Grid Maps drawing. The utility lines are from cities that were contracted with LA County. To download the hardcopy maps, please visit: Los Angeles County Substructure Maps | County of Los Angeles Open Datahttps://egis-lacounty.hub.arcgis.com/maps/los-angeles-county-substructure-maps-1/explore?location=34.094631%2C-118.256950%2C7.82Every reasonable effort has been made to assure the accuracy of this data and the maps referenced. Some cities may provide substructure information for the areas not covered by our map grids. Additional and more accurate substructure data and information may also be obtained through the utility companies. The County of Los Angeles makes no warranty, representation, or guarantee as to the content, sequence, accuracy, timeliness, or completeness of any of the data provided herein or of any maps referenced. Los Angeles County Public Works recommends that all utility research be conducted under the supervision of a licensed civil engineer.

Maps at the links below are for general information only. The information shown is to be considered accurate only to the date shown on each map. All of the maps found on this page are not parcel specific. The PDF maps can be viewed by using Adobe Acrobat zoom in/zoom out tools. All maps found on this page are downloadable. Larger sizes are available in print from the Development Center. Please call 253-864-4165 for pricing.

This data set shows utility lines that provide services for:powerwatercommunicationsheating fuelThey include:communication lines/submerged communication lineshydro lines/submerged hydro linesnatural gas pipelines/submerged natural gas pipelineswater pipelines/submerged water pipelinesunknown pipelinesunknown transmission linesAdditional Documentation Utility Line - Data Description (PDF) Utility Line - Documentation (Word)

Status
Required: data needs to be generated or updated

Maintenance and Update Frequency
Not planned: there are no plans to update the data

Contact
Ontario Ministry of Natural Resources - Geospatial Ontario, geospatial@ontario.ca

Recommendations Not for legal purposes. This data is collected with varying aerial photography dates and scales. It is a snap shot in time and maintenance of these features are uncertain.CAVEAT:Data for this information holding varies by OMNR District in terms of...-Completeness: - Concentrated surveys in one or more areas of the District. - Instances where no surveys were initiated, even though there is evidence of the value. - Instances where the value is not known to exist within the District. - Instances where attributes collected for the value will be minimal to verbose. - The data may exist only in a tabular form (files, hardcopy maps) within the District.-Accuracy: -Dependant on the value's source capture methodology. -G.P.S. coordinates vs. sketched location. -Generalized location (buffered point) vs. mapped area (polygon)-Vintage: -New vs. old value survey information for values in part(s) or all of the District.-Sensitivity: -Some OMNR Districts may consider a specific value or group of values sensitive, others may not. -Some of the values may be flagged as sensitive due to intellectual copyright. (i.e.: Professional Research). -The value may be flagged as sensitive due to its link or relation to First Nation Peoples. Please refer to this same section within the OMNRF District's version of this record for specific use constraints details.

Underground Utility Mapping Market Outlook

The underground utility mapping market has been witnessing significant growth, with its market size estimated at USD 1.2 billion in 2023. It is anticipated to reach USD 2.5 billion by 2032, demonstrating a compound annual growth rate (CAGR) of 8.3% during the forecast period. This growth can be attributed to the increasing demand for accurate underground utility visualization and mapping solutions, which are critical for urban development, infrastructure management, and reducing risks associated with construction and excavation activities. As urbanization expands globally, there is a growing need for technologies that can reliably detect and map subterranean utilities, thus driving market growth.

One of the key growth drivers for the underground utility mapping market is the rising emphasis on minimizing damage and accidents during construction activities. With the proliferation of underground utilities such as water pipes, gas lines, and electrical cables, there is an increasing need to prevent damage to these utilities, which can result in significant operational disruptions and financial liabilities. This has heightened the demand for advanced mapping technologies that can help identify the precise locations of underground assets. Moreover, regulatory frameworks across various countries are mandating utility mapping before undertaking construction projects, thus propelling market growth.

The technological advancements in mapping techniques such as electromagnetic location, ground penetrating radar, and acoustic location are also contributing significantly to the market growth. These techniques offer superior accuracy and efficiency in identifying underground utilities, making them indispensable tools for construction companies, utility service providers, and government agencies. The integration of these technologies with advanced data analytics and geographic information systems (GIS) enhances their utility, providing detailed insights into the subterranean environment and facilitating informed decision-making processes.

Another growth factor is the increasing investment in infrastructure development projects worldwide. As governments and private sectors invest heavily in developing and upgrading urban infrastructure, there is a heightened demand for reliable and precise utility mapping solutions. This trend is particularly prominent in developing regions where rapid urbanization and industrialization are underway. Additionally, the emergence of smart city initiatives, which require robust underground utility networks to support advanced technologies, is further fueling the demand for underground utility mapping solutions.

In the realm of urban development and infrastructure management, Underground Facilities Maintenance plays a pivotal role in ensuring the longevity and functionality of subterranean utilities. As cities expand and the complexity of underground networks increases, the need for regular maintenance becomes ever more critical. This involves routine inspections, repairs, and upgrades to prevent unexpected failures and extend the lifespan of utility systems. Effective maintenance strategies not only safeguard against disruptions but also optimize the performance of utilities, thereby supporting sustainable urban growth. By integrating advanced technologies and data-driven approaches, maintenance teams can proactively address potential issues, ensuring that underground facilities continue to operate efficiently and safely.

Regionally, North America holds a significant share of the underground utility mapping market, attributed to the presence of well-established infrastructure, strict regulatory standards, and high adoption of advanced technologies. Europe follows closely, driven by its strong emphasis on sustainable urban planning and infrastructure safety. The Asia Pacific region is expected to witness the highest growth rate, spurred by rapid urbanization, infrastructural development projects, and increasing government initiatives to ensure safe construction practices. Meanwhile, the Middle East & Africa and Latin America are also showing promising growth potential, as they increasingly invest in infrastructure modernization and urban development.

Component Analysis

The underground utility mapping market is segmented by components into software, hardware, and services, each playing a critical role in the comprehensive mapping process. The software segment is prim

This application provides the public information on our underground assets, particularly water, sanitary and storm features.

Web map used in public application for users to search for an address or select one on the map and view property and utility side service line materials.

This data depicts infrastructure locations for electrical power lines in Alaska as digitized primarily from 1:24,000, 1:63,360, and 1:250,000 USGS quadrangles. The source document that represented the newest information and best geographic location was used to capture the data. All infrastructure from the primary source document was digitized and then supplemented with the information from other source documents for additional or updated infrastructure or attributes.

Stormwater Pipe/Conveyance Lines in Fuquay-Varina. Please note that many of the stormwater line features represent privately owned and maintained pipes, and these are essential for mapping and understanding the stormwater drainage network sub-systems at the neighborhood level. Please pay attention to the Subtype field to identify the different categories of public vs. private and culvert type stormwater lines. Directionality (start vs. end vertices) of these line features reflects real world flow direction. The GIS data in the area of Downtown Fuquay-Varina has a lot of old and erroneous stormwater features. A project is currently underway to correct much of this inaccurate stormwater data. Please note that ALL public utility data layers can be downloaded in a single .mpkx (ArcGIS Pro map package file), updated every Friday evening. This .mpkx file can be opened directly with ArcGIS Pro version 3+. Alternatively, you can extract the file geodatabase within it by renaming the file ending .mpkx to .zip and treating it like a zip archive file, for use in any version of ArcGIS Pro or ArcMap software. You can also use QGIS, a powerful, free, and open-source GIS software.The Town of Fuquay-Varina creates, maintains, and serves out a variety of utility information to the public, including its Potable Water System, Sanitary Sewer System, and Stormwater Collection System features. This is the same utility data displayed in our public web map. This utility data includes some features designated as 'private' that are not owned or maintained by the Town, but may be helpful for modeling and other informational purposes. Please pay particular attention to the terms of use and disclaimer associated with these data. Some data includes the use of Subtypes and Domains that may not translate well to Shapefile or GeoJSON downloads available through our Open Data site. Please beware the dangers of cartographic misrepresentation if you are unfamiliar with filtering and symbolizing data based on attributes. Water System Layers:Water LinesWater ValvesWater ManholesFire HydrantsFire Department ConnectionsWater MetersWater Meter VaultsRPZ (Backflow Preventers)Water TankWater Booster StationsHarnett County Water District AreaSewer System Layers:Gravity Sewer LinesForced Sewer LinesSewer ManholesSewer ValvesSewer CleanoutsSewer Pump StationsWastewater Treatment PlantsStormwater System Layers:Stormwater Lines (Pipes)Stormwater Points (Inlets/Outlets/Manholes)Stormwater Control Measure Points (SCM's, such as Wet Ponds / Retention Basins)

Energy and utilities data from the Alaska Energy Authority, Alaska Energy Data Gateway. Includes: - Hydroelectric - Hydrokinetic - Wind Power - Thermal Areas - Hot Springs - Sawmills - Energy Regions - Electric Utility Lines - TAPS Pipeline - Volanoes and Vents - Solar PowerSource: Alaska Energy AuthorityThis data is provided as a service in the DCRA Information Portal by the Alaska Department of Commerce, Community, and Economic Development Division of Community and Regional Affairs (SOA DCCED DCRA), Research and Analysis section. SOA DCCED DCRA Research and Analysis is not the authoritative source for this data. For more information and for questions about this data, see: Alaska Energy Data Gateway

The Underground Utility Mapping market is experiencing robust growth, projected to reach a market size of $1.32 billion in 2025 and maintain a Compound Annual Growth Rate (CAGR) exceeding 9.61% from 2025 to 2033. This expansion is driven by several key factors. Increasing urbanization and infrastructure development necessitate accurate and efficient utility mapping to prevent costly damages during excavation projects. Furthermore, stringent safety regulations and rising awareness of potential risks associated with damaging underground utilities are pushing adoption of advanced mapping technologies. The growing demand for smart city initiatives and the implementation of digital twin technologies further fuel market growth. The market is segmented by component type (solutions – including Ground Penetrating Radar (GPR), electromagnetic locators, and other solutions – and services) and end-user industry (public safety, oil and gas, building and construction, telecommunications, electricity, and others). The solutions segment currently dominates, reflecting the high capital expenditure associated with acquiring advanced mapping equipment. However, the services segment is expected to witness significant growth as businesses increasingly outsource utility mapping tasks to specialized firms. North America and Europe currently hold significant market share, driven by advanced infrastructure development and early adoption of advanced technologies. However, emerging economies in Asia and the Middle East are expected to show rapid growth in the coming years due to increased investments in infrastructure and utility modernization projects. Competitive landscape is characterized by both established players and emerging technology providers, leading to innovation and wider accessibility of utility mapping solutions. The continued growth trajectory is expected to be influenced by technological advancements, such as the integration of artificial intelligence (AI) and machine learning (ML) into mapping systems to improve accuracy and efficiency. The development of more user-friendly and portable equipment will broaden accessibility, particularly for smaller businesses and municipalities. However, the high initial investment cost for advanced mapping equipment could pose a challenge for some smaller companies, especially in developing nations. Nevertheless, the overall outlook for the Underground Utility Mapping market remains positive, fueled by long-term infrastructural development plans globally and a growing awareness of the safety and economic benefits of accurate utility mapping. Recent developments include: March 2024: WSB LLC (“WSB”), one of the nation’s fastest-growing infrastructure engineering and consulting firms, partnered with 4M Analytics, the nation’s leading subsurface utility AI mapping and analytics solution. This partnership is intended to support infrastructure projects across the United States, focusing on data integrity and real-time digital delivery. Leveraging artificial intelligence, computer vision, and change detection techniques, 4M Analytics synthesizes, digitizes, and geo-locates millions of utility data sources into a single platform and visually validates each line using vertical and horizontal imagery dating back to the 1940s. This enables ‘real-time’ access to the utility landscape for infrastructure projects through an intuitive user interface. The mapping resources will decrease the time it takes to locate underground utilities for owners, civil engineering firms, general contractors, subsurface utility engineering firms, and many other utility stakeholders., February 2024: Exodigo announced that it would offer the accurate and complete subsurface maps needed to improve undergrounding processes for power lines as part of the Grid Overhaul with Proactive, High-speed Undergrounding for Reliability, Resilience, and Security (GOPHURRS) program led by the US Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E).. Key drivers for this market are: Emerging Technologies Combined With Utility Maps to Improve the Exploration Activities, Increasing Availability of Detecting Applications and Increased Return on Marketing Spending. Potential restraints include: Emerging Technologies Combined With Utility Maps to Improve the Exploration Activities, Increasing Availability of Detecting Applications and Increased Return on Marketing Spending. Notable trends are: Ground Penetrating Radar is Expected to be the Largest Component Type Solution.

This feature class/shapefile represents electric power transmission lines. Transmission Lines are the system of structures, wires, insulators and associated hardware that carry electric energy from one point to another in an electric power system. Lines are operated at relatively high voltages varying from 69 kV up to 765 kV, and are capable of transmitting large quantities of electricity over long distances. Underground transmission lines are included where sources were available. The following updates have been made since the previous release: 1,166 features added.Users should note that this dataset does not contain all electric power transmission lines in Indiana, especially those at a smaller scale.

Geospatial data about Arkansas Power Lines (USGS). Export to CAD, GIS, PDF, CSV and access via API.

*** 7/19/22: This dataset and its accompanying map are no longer available since they are inaccurate and outdated. The Minnesota Department of Commerce is no longer maintaining or fielding requests related to this data as it has been unable to consistently obtain accurate, up-to-date information on high voltage transmission lines and substation locations from transmission owners in the state.***

For alternative sources for transmission line and substation information, see the transmission lines and substations section of MnGeo's information webpage on utilities: https://www.mngeo.state.mn.us/chouse/utilities.html#transmission

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Information describing the previously available dataset is provided in the rest of this metadata record for reference.
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The electric transmission network information consisted of transmission lines, with associated substations, designed to handle 60 Kilovolts or greater.

The Minnesota Electric Transmission Mapping Project developed two geographic information system datasets: transmission lines and substations. This metadata record describes both datasets.

In 2002, each electric utility company was mailed a request for their facility information which could be provided in either digital or paper form. The responses varied significantly in quality and quantity. In addition, the companies expressed concerns about providing the information because of security concerns. Data users were strongly encouraged to read the data quality section of this documentation.

Datasets were published in 2003, 2007, 2014, 2016, and 2021. In 2016 a few changes were made to improve the positional accuracy of lines and substations. The dataset was last updated in July 2021.

The Minnesota Electric Transmission Mapping Project was a collaborative effort between the Minnesota Department of Commerce and the Minnesota Geospatial Information Office.

1:250,000 NTDB Utility Features Line Distributed from GeoYukon by the Government of Yukon . Discover more digital map data and interactive maps from Yukon's digital map data collection. For more information: geomatics.help@yukon.ca

U.S. Electric Power Transmission LinesThis feature layer, utilizing data from Homeland Infrastructure Foundation-Level Data (HIFLD), depicts electric power transmission lines in the United States. Per HIFLD, "Transmission Lines are the system of structures, wires, insulators and associated hardware that carry electric energy from one point to another in an electric power system. Lines are operated at relatively high voltages varying from 69 kV up to 765 kV, and are capable of transmitting large quantities of electricity over long distances. Underground transmission lines are included where sources were available."138 Kilovolt Transmission LineData downloaded: 5/16/2025Data source: Transmission LinesData modification: noneFor more information: Electricity ExplainedSupport documentation: Transmission LinesFor feedback, please contact: ArcGIScomNationalMaps@esri.comThe Homeland Infrastructure Foundation-Level DataPer HIFLD, "The Homeland Infrastructure Foundation-Level Data (HIFLD) Subcommittee was established…to address improvements in collection, processing, sharing, and protection of homeland infrastructure geospatial information across multiple levels of government, and to develop a common foundation of homeland infrastructure data to be used for visualization and analysis on all classification domains."

This website provides a limited number of Substructure Maps in “pdf” format via GIS polygons representing grids containing URL links. Across various areas of Los Angeles County, paper maps were created by Public Works (PW) and its predecessor Departments to show underground utilities such as cable TV, gas, oil, and telephone lines.

Though most of these maps are no longer updated, they can be useful as a research resource. Every reasonable effort has been made to assure the accuracy of this data and the maps referenced. Some cities may provide substructure information for the areas not covered by these grids. Additional and more accurate substructure data and information may also be obtained through the utility companies. Before digging, it is strongly advised to contact the Underground Service Alert (DigAlert Express) at www.digalert.org/digexpress.html or by calling 811.

Please note that California State Law Says, You Must Contact DigAlert!

The County of Los Angeles makes no warranty, representation, or guarantee as to the content, sequence, accuracy, timeliness, or completeness of any of the data provided herein or of any maps referenced. Los Angeles County Public Works recommends that all utility research be conducted under the supervision of a licensed civil engineer.

This polygon service represents easements acquired by Duke Energy and Piedmont Natural Gas, either directly or from legacy companies, for purposes of energy transmission throughout North Carolina. The layer is updated monthly. If you have questions or comments, please contact us at LandServicesGIS@duke-energy.com

The approximate location of major utility lines (electric, gas, communication) that run across Fairfax County.

This feature class represents electric power retail service territories. These are areas serviced by electric power utilities responsible for the retail sale of electric power to local customers, whether residential, industrial, or commercial. The following updates have been made since the previous release: 7 features added, numerous geometries improved, and geographic coverage expanded to include American Samoa, Guam, Northern Mariana Islands, and Virgin Islands.