2/25/2020 This storm water data around the Leon Lavine Hall of Health Sciences, has been updated using a georeferenced PDFs, such as C400, C403, C500, a land survey 02/04/2020 by Allen geomatics job 1234 last revised 07-17-2020 336-998-0215 L-3810. Jeffery C. Allen. Also, CAD drawings were used; however, could not be properly converted into GIS since X refs were missing. Field verification from the mechanical shop is a must to ensure accuracy of contracted performed work.

7/17/2018 This, feature class was updated with a 2017 survey. The Old High School property was surveyed by Timothy W. Caldwell License number L-5232, September 27, 2017, Mattern & Crag Engineers and Surveyers. Data is considered 90% accurate, and data was collected between 8/ 5-18 / 2017. All coordinates are based on NCGS NAD/83/ 2011 and all elevations are based on NAVD 88.

4/16/2018 These features have been updated using a DWG. provided by Davis, Martin and Powell survey, made available 1/3/2018. 6415 OLD PLANK RD, HIGH POINT, NC 27265

(336) 886-4821 | WWW.DMP-INC.COM | LICENSE: F-0245. The DWG was layered out by NRLP mapping department.

8/14/2017 Images were attached to 164 of the 165, points all photos came from Rochester’s many folders and, a python script was run to place all images into an organized folder.

3/3/2017 Editor Tracker has been added to this feature class. All of the attributes have been appropriately updated and meaningless columns omitted. However, this is a work in progress.

A flared end section of pipe can consist of number of different types of materials and sizes. The most common types of materials used are reinforced concrete and HDPE plastic. HDPE, High-density polyethylene is a hydrocarbon polymer prepared from ethylene/petroleum by a catalytic process. It is a kind of thermoplastic which is famous for its tensile strength. Flared in pipes provide the following benefits: greatly improved stream flow characteristics, improves scour and sedimentation conditions, unsightly weeds and debris collection at the culvert end are reduced, and tapered design promotes easier mowing and snow removal. In this data set 16 flared end section were geolocated between 8/20/2014 and 10/20/2014, all were photographed. The sump elevation for each is zero. Only one comment was made: 24RCP, for pointid63, 51572.

3/4/2017 Editor Tracker has been added to this feature class. All of the attributes have been appropriately updated and meaningless columns omitted. However, this is a work in progress.

A headwall usually constructed of concrete is a retaining wall built at the outlet of a drainpipe or culvert, where the end of the pipe is flush with the outer surface of the wall. In this dataset 20 points were collected and photographed between 8/20/2014 and 11/6/2014. No comments were recorded, all had a sump elevation of zero. The columns: id, owner, install_yr, condition, and source are also blank.

3/4/2017 Editor Tracker has been added to this feature class. All of the attributes have been appropriately updated and meaningless columns omitted. However, this is a work in progress.

A junction box is a structure used to join multiple sections of storm drains. In this dataset 124 junction boxes were geolocated, and most photographed, between 8/19/2016 and12/3/2014. One data point is listed App State University as the owner, pointid63, 59035, the remaining 123 points have no owner. Nothing is listed in the following columns: id, install_yr, condition, and source. The sump elevation for all of the data points is zero. The comments are as follows: solid top INV NA, solid conic top, not sewer full water?, INV N/A, Cannot see pipes types sizes, box on side of main flow.

3/6/2017 Editor Tracker has been added to this feature class. All of the attributes have been appropriately updated and meaningless columns omitted. However, this is a work in progress.

An outlet control structure or emergency spillway is used when a retention pond cannot hold a larger than normal volume of water entering it. The outlet control structure acts as a quick drain to send the excessive water downstream preventing localized flooding. In this dataset 5 outlet control structures were identified, geolocated and photographed between 9/4/2014 and 10/23/2014. The sump elevation is zero for each of the data points. Nothing is listed in the following columns: id, owner, install_yr, condition, source, and comments.

Woodard & Curran, Rochester & Associates, Inc.