Found 6 datasets matching filters.
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage...
Search relevance: 1.00 | Views last month: 14 | Published on: 2026-03-03 -
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current National Hydrography Dataset (NHD),...
Search relevance: 1.00 | Views last month: 8 | Published on: 2026-03-03 -
Detection of voids along conduits has been attempted in the past using various non-invasive technologies. While progress has been made, underlying challenges exist that have resulted in the...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-01-06 -
The presence of voids behind or below a structure can limit operations at best and at worst be a precursor to failure. Voids could lead to hydraulic jacking, ground instability, and a roofed path...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-01-06 -
Voids form as a consequence of the deteriorated state or poor design of the structures they are associated with. There are a variety of different mechanisms that can lead to the formation of...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-01-06 -
Cavitation and erosion damage to concrete hydraulic surfaces such as spillways and stilling basins are a problem for facilities operated by the Brazilian Government and Reclamation. This document...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-01-06
