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National Levee Database

NLD Website Changes

This page documents updates and improvements made to the National Levee Database over time, including new features, content updates, design changes, performance enhancements, and bug fixes. It helps users stay informed about what has changed, when updates were made, and how those changes may affect their experience using the website.

This page does not include change requests or updates related to specific levee systems. To view requests and changes for individual levees, refer to the Data Requests page.

NLD Version 4. 32.0 ( 12/3/2025)

Enhancement

20962

Data Update Log for when a user submits a data change request and can track status of request.  

Bug Fix

30679

Full Shapefile downloads are only including the system route file

Issue fixed.

 

Minor Change

30553

Explore Pages – Data Services – Dictionary – Update Geometry Type for Pipe to “line”

Task completed.

NLD Version 4. 29.0 ( 9/26/2025)

5

New Feature

20603

Leaflet Advanced Map Viewer - Public

Accessible via “Explore via Map View" link on the Public Home Page.

 

9

Minor Change

28886

Public Summary Page – Updates to Endangered Species card

The Threatened and Endangered Species card has been updated:

  • Front-facing card label has been updated to “No Threatened & Endangered Species Active Critical Habitat” / “Threatened & Endangered Species Active Critical Habitat”
  • Flipped card label has been updated to “Threatened & Endangered Species Breakdown” / “No Threatened & Endangered Species Active Critical Habitat Behind This Levee”

 

Tribal Lands Behind This Levee card has been updated to “Tribal Lands.”

 

15

Minor Change

29589

Add top-level US Government banner

 

Task completed.

NLD Version 4. 26.0 ( 7/9/2025)

Bug Fix

27573

Explore Pages – Purpose & History – YouTube video isn’t coming up.

Issue fixed.

NLD Version 4. 24.0 ( 5/5/2025)

Type

#

ID

Summary

Details

Enhancement

4

26322

Download Data function

Changes on the authenticated NLD side, for the full GeoJSON download:

  • Added System Alignment Line
  • Renamed Centerline to Embankment
  • Renamed System to SystemRoute

 

Changes on the authenticated NLD side, for the Geopackage download:

  • Added System Alignment Line
  • Renamed Centerline to Embankment
  • Renamed System to SystemRoute
  • Add M’s to SystemRoute

 

Changes the NLD public side:

  • Updated the current the GeoJSON download to the full GeoJSON capability from the authenticated side.
  • Added Geopackage download to the pulldown, matching the logged-in side capability.

 

NLD Version 4. 17.0 ( 12/18/2024)

ENHANCEMENT

8

22106

Added Change Log Menu item for Public Website Changes