Project Depths - National Oceanic and Atmospheric Administration

Project Depths - National Oceanic and Atmospheric Administration

Project Depths RASTER NAVIGATIONAL CHARTS (RNC) Project Depths vs Controlling Depths PROJECT DEPTHS Project Depths are the design dredging depth of a channel constructed by the U.S. Army Corps of Engineers. The project may or may not be the goal of maintenance dredging after completion of the channel Project Depths are relatively stable.

CONTROLLING DEPTHS Controlling Depths/Minimum Depths are the least depths within the limits of a channel. Controlling depths restrict the safe use of the channel to drafts less than the minimum depth. Controlling depths frequently change and are challenging to maintain on RNCs. Controlling Depths to Project Depths for

RNC Currently, U.S. Army Corps of Engineers (USACE)controlling depth data is applied to Raster Navigational Charts (RNC) and Electronic Navigational Charts (ENC). Channel data published on RNCs and ENCs has often been out of sync with the data made publicly available by the USACE. Recent prioritization of ENC updates has increased the latency of RNC publications.

In an effort to mitigate this latency, project depths will be depicted on RNCs. ENCs will continue to be updated with the latest minimum depths provided by USACE. Current Depictions of Controlling Depths on RNC Products Channel Tabulations tables furnishing controlling depths, date of survey, and project dimensions. Current Depictions of Controlling Depths on RNC Products

Controlling Depth Legends Depth Legends, providing controlling depth and date of survey, are used when the channel tabulation is not feasible. Baltimore Harbor Depth Legend Hydrography Soundings and depth curves are charted within the channel limits. Hydrography in Boston Harbor

Establishing Project Depths - Example The example below depicts the proposed revision of a channel reach in Baltimore Harbor. This approach is applicable to all current depictions of controlling depths on RNCs. Establishing Project Depths - Example The channel tabulation is removed from the chart along with

associated references. The project depth is added to the reach with reference to the Project Depth Note. Project Depth Note is added to the chart. Establishing Project Depths Example

There will be instances where chart scale will prevent the use of Project Legends. In these cases, a Project Tabulation will be used to reflect controlling depths. The Project Tabulation provides the reach names and project depth.

Recently Viewed Presentations

  • Diapositiva 1 - United Nations Statistics Division

    Diapositiva 1 - United Nations Statistics Division

    Framework (MGN, for its acronym in spanish) is a unique and national system designed by INEGI to correctly reference the statistical information of the censuses and surveys with the corresponding geographical places, provides the position of localities, municipalities and entities...
  • Writing for Medical Journals: Manuscript Preparation From ...

    Writing for Medical Journals: Manuscript Preparation From ...

    Writing and editing the paper is the last step in the research process. The paper tells the story from study inception, through data collection, statistical analysis, findings and discussion. The process of writing the paper should be analogous to the...
  • Monday, October 5 Warmup th Body parts are

    Monday, October 5 Warmup th Body parts are

    Tuesday, October 6th Warm-up Exercise your brain cells by finding words within a larger word. Each of your answers must consist of at least four letters. Plurals are not accepted. Find twenty words in the word SANDERS Thursday October 8th...
  • Digital Resources

    Digital Resources

    Cisd curriculum page. Unit Assessment/common assessment Items -- 2015-18 past ASSESSMENTS are found on the curriculum page on the CISD intranet by subject and grade
  • TRACY's Class

    TRACY's Class

    Function in body- Makes up 75% of body from hair nails cartilageā€¦needed for all chemical reaction, structure (support frame work), hormone regulation, Blood proteins, immune defense, receptor sites, enzymes build and grow muscle, repair damaged cells,
  • Introduction to Azure SQL Database

    Introduction to Azure SQL Database

    Sits side-by-side with Datasets, Reports and Dashboards. Added benefits Power BI Service Datasets cannot offer. Tens of millions of Excel and Power BI users are familiar with Power Query. Dataflows is similar to Excel in how it builds a dependency...
  • Berryman Essay Revising and Editing - ReadWriteThink

    Berryman Essay Revising and Editing - ReadWriteThink

    Berryman Essay Revising and Editing First Things First! Heading should have: Your name Instructor's name Class name Assignment name Date (Interesting) title centered Check the little things! Is your last name and the page number at the top of every...
  • Subsidizing Health Insurance for Low-Income Adults: Evidence from

    Subsidizing Health Insurance for Low-Income Adults: Evidence from

    Introduced in 2006 "Romneycare" reform. ACA-like eligible population: Low-income adults (<300% poverty) w/out access to employer insurance or other public insurance. Relevant choice: CommCare plan vs. Uninsurance. Focus on 135-300% poverty and simple market setting in 2011.