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3D Elevation Program (3DEP)

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 3DEP Resources

 3DEP Plan - The 3D Elevation
 Program Initiative - A Call for
   (USGS Circular 1399)

 The 3DEP Elevation Program -
 Summary of Program Direction
   (USGS Fact Sheet 2012-3089)

 National Enhanced Elevation
 Assessment (NEEA)

 3DEP Executive Forum

 Alaska Mapping Roundtable

 3DEP Products and Services

 3DEP 'In the News'

 Alaska's outdated maps make
 flying a peril, but a high-tech
 fix is slowly gaining ground

 How Lasers and 3-D Maps Can
 Help the U.S. Prepare for Climate

 Safer Communities, Stronger
 Economies - in 3D

 Obama launches climate
 tools including 3-D maps

 More 3DEP in the News

 3DEP State Fact Sheets





























  New Hampshire

  New Jersey

  New Mexico

  New York

  North Carolina

  North Dakota





  Rhode Island

  South Carolina

  South Dakota







  West Virginia



 Contact Us
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Introduction and Goals

LiDAR is used to detect potential obstacles that present hazards to air navigation.
Lidar is used to detect potential obstacles that present hazards to air navigation.

The 3D Elevation Program (3DEP) initiative is being developed to respond to growing needs for high-quality topographic data and for a wide range of other three-dimensional representations of the Nation's natural and constructed features. The primary goal of 3DEP is to systematically collect enhanced elevation data in the form of high-quality light detection and ranging (lidar) data over the conterminous United States, Hawaii, and the U.S. territories, with data acquired over an 8-year period. Interferometric synthetic aperture radar (ifsar) data will be collected over Alaska, where cloud cover and remote locations preclude the use of lidar over much of the State. The 3DEP initiative is based on the results of the National Enhanced Elevation Assessment.

3DEP Data Acquisition Partnership Opportunities


NEW! - FY15 BAA / FY16 Awards

On July 17, 2015, the USGS issued the FY15/FY16 Broad Agency Announcement (BAA) for 3D Elevation Program (3DEP). The BAA provides detailed information on how to partner with the USGS and other Federal agencies to acquire high-quality 3D Elevation data. Information and contacts are now available at Fed Biz Opps (Search for Reference Number: G15PS00558) and (Funding Opportunity Number: G15AS00123). Applicants may contribute funds toward a USGS lidar data acquisition activity via the Geospatial Products and Services Contracts or they may request 3DEP funds toward a lidar data acquisition activity where the requesting partner is the acquiring authority. Federal agencies, state and local governments, tribes, academic institutions and the private sector are eligible to submit pre-proposals. Pre-proposals are due by 1:00PM ET on August 25, 2015. Full Proposals are due by 1:00PM ET on October 23, 2015 Reference materials associated with the BAA are available on this website.

This year’s BAA process included a series of public workshops designed to increase awareness and enable stakeholders to prepare in advance for this BAA opportunity. On July 23 at 12:00 PM ET and July 28 at 2:00 PM ET, the final national public webinars will be conducted to provide instructions to the broader community on preparing proposals for submission to the BAA. Registration is required. The recording will be made available, so those unable to attend can listen to the instructions at their convenience. The first webinar focused on helping stakeholders become familiar with the basics of the BAA process. Those who were unable to attend are encouraged to view the video recording. For more information about the public webinars and workshops visit the 3DEP Geospatial Platform Sharing Site

FY14 BAA / FY15 Awards

The first round of awards resulting from the first USGS Broad Area Announcement (BAA) for the 3D Elevation Program (3DEP) (Issued July 18, 2014) offered partnership funding to 29 proposals in 26 States and Territories. The FY15 body of work is expected to result in the influx of more than 95,000 square miles of public domain lidar point cloud data and derived elevation products into the 3DEP program.

More information about the FY14 opportunity which resulted in the FY15 awards visit: BAA Awards

3D Elevation Program - FY15 Broad Agency Announcement - Proposed Body of Work


Applications - A Few Examples

3DEP will provide expanded benefits to a range of Federal, State, local, and private industry applications. Some examples of the value of improved elevation data include:

  • On July 16, 2014 the President of the United States made 3D Elevation a component of the Climate Action Plan to help improve the Nation's climate resilience when he stated, "We're going to do more, including new data and 3D maps to help state [and] local officials in communities understand which areas and which infrastructure are at risk as a consequence of climate change." See the Video - The President Meets with His Climate Task Force
  • The Federal Emergency Management Agency (FEMA) expects that a national enhanced elevation program could reduce the amount of time needed to update its flood maps. These enhanced data could provide significant benefits to the communities and citizens that are customers of the National Flood Insurance Program. For example, updated information could be delivered to affected communities and homeowners more quickly.
  • Using lidar data, U.S. Geological Survey (USGS) scientists discovered a surface rupture along the Tacoma fault in the State of Washington. This discovery led to a redesign of the structural elements of a $735-million suspension bridge across the Tacoma Narrows. When lidar data enable the identification of active faults near major infrastructure, mitigation steps may be taken to avoid potential catastrophes.
  • In the State of Alaska, poor-quality elevation data pose an ongoing threat to aviation safety. Improved elevation data for cockpit navigation and flight simulators may save lives each year by reducing accidents resulting from the inability to safely fly over obstacles in airspace.
  • In 2010, an estimated 262.3 million acres of farm lands were harvested in the United States at total product values of $356.2 billion. The value to America's farmers of public domain lidar for all precision agriculture nationwide is believed to be potentially worth up to $2 billion annually.


Transition to 3DEP

High-resolution lidar image of Mount St. Helens, Washington.
High-resolution lidar image of Mount St. Helens, Washington
Today, the USGS offers a wide variety of elevation data products and services from the National Elevation Dataset (NED) at various resolutions. NED activities will continue until a full transition to 3DEP is completed. 3DEP planning and research is underway at the USGS to transition to a unified service that will provide both gridded bare earth data products and point cloud data, along with capabilities to produce other derived elevation surfaces and products from 3D data During fiscal years 2013 and 2014, customers will begin to see evidence of this transition.

In addition to transitioning to new systems and services, the USGS is investigating how to begin implementing 3DEP data acquisition partnerships. Goals include moving to higher quality data specifications and larger project areas. Discussions are underway with the National Digital Elevation Program ( and with state and local partners about how to advance these 3DEP objectives while the program is in development.

Another element of 3DEP data acquisition that is already underway is ifsar data acquisition for Alaska. Numerous Federal and State government activities depend on access to accurate, up-to-date topographic maps and data, however, modern mapping information does not exist over the majority of land in Alaska. To address this issue, the Department of the Interior and the State of Alaska conducted an Alaska Roundtable meeting, which led to the establishment of the Alaska Mapping Executive Committee, chaired by the Department of the Interior Assistant Secretary for Water and Science, Anne Castle. The Committee is collaborating with the Alaska Statewide Digital Mapping Initiative to complete acquisition of statewide ifsar data as its first priority.


Management Association for Private Photogrammetric Surveyors (MAPPS)

   MAPPS Statement on 3DEP

"MAPPS believes 3DEP will promote economic growth, facilitate responsible environmental protection and resource development and management, assist with infrastructure improvement, and generally enhance the quality of life of all Americans."

National Digital Elevation Program (NDEP)

   Endorsement for a 3D Elevation Program

"The NDEP member agencies endorse the 3D Elevation Program recommendations to achieve national coverage of high quality elevation data and to make that data easily accessible to anyone. NDEP will use 3DEP guidelines and principles in planning and coordinating its activities as allowed by respective agency requirements and resources."

National States Geographic Information Council (NSGIC)

   2013 Advocacy Agenda

"The US Geological Survey (USGS) is working to launch their 3D Elevation Program (3DEP). Before doing so, they worked with the National Digital Elevation Program (NDEP), which coordinates the needs of 12 federal agencies and NSGIC. USGS' own products have used 10' elevation contours. A cost benefit study of multiple users showed a high return on investment from enhanced elevation data products derived from LiDAR, including derived 1' contours. Key components of 3DEP include a cooperative funding model and options for data quality upgrades to meet State, local and scientific investigation needs. NSGIC applauds this approach and encourages the full development and funding of the 3DEP program."

   Letter of Support for the National Enhanced Elevation Program

"On behalf of the Board of Directors and state members of the National States Geographic Information Council (NSGIC), I would like to express our strong support for implementation of the recommended National Enhanced Elevation Program." - Dr. Timothy M. De Troye, GISP; President, National States Geographic Information Council

National Geospatial Advisory Committee (NGAC)

   April 17-18, 2012 Meeting Summary

"The NGAC endorses a national elevation program (i.e., 3D Elevation Program, or 3DEP) as described in the National Enhanced Elevation Assessment conducted by the U.S. Geological Survey (USGS). The NGAC encourages the USGS, the Department of the Interior, and Federal partner agencies to refine, adopt, and implement this program in partnership with other levels of government, academia, and the private sector."

Related Activities

National Oceanic and Atmospheric Administration (NOAA) Digital Coast
The Digital Coast provides tools, training, and information needed to turn geospatial data into information used by coastal resource managers.

The United States Interagency Elevation Inventory (USIEI)
The USIEI was completed in May 2012 and serves to combine and display high-accuracy topographic and bathymetric data for the United States and its territories. The project is a collaborative effort of NOAA and the USGS, with contributions from the Federal Emergency Management Agency.
Graphic representation of topo-bathymetric data for Mobile Bay, Alabama.
Graphic representation of topo-bathymetric data for Mobile Bay, Alabama


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Page Last Modified: Thursday, 30-Jul-2015 16:55:05 EDT