Topographic and Bank Erosion Pin Data Used in Monitoring of Bank Erosion in Caulks Creek, Wildwood, Missouri, 2022–2023

Topographic data were collected along six reaches (study reach 1, study reach 2, study reach 3, study reach 4, study reach 5, and study reach 6) along Caulks Creek in Wildwood, Missouri, on multiple dates, using terrestrial light detection and ranging (t-lidar), Global Navigation Satellite System (GNSS), and conventional surveying techniques (Rydlund and Densmore, 2012).These data are high-resolution topography in laser scan format (LAS), collected using a tripod mounted t-lidar at multiple scan setups. Data collection software was used to integrate and store the range and angular measurements from the t-lidar equipment. Computer software was used to process the raw data, align the various scans in reference to one another, classify the data, and extract the topography data in a useable format. The total station data were collected for study reach 3 using a tripod mounted Trimble M3 Total Station and are stored in comma-separated value (csv) format. The collected data points represent the channel, bank, and near overbank surface at select locations in the study reach. The t-lidar and total station topographic data are available for each study reach within the data release Child Items.
Bank erosion pins (2-foot lengths of 0.38-inch steel rebar) were placed at 12 locations throughout the Caulks Creek study area. Most of the bank erosion pins were located outside of the six study reaches, though one was located within study reach 4 and two were located within study reach 5. The tip of the pin represents a datum from which a change in the bank position can be measured. The distance from the tip of the pin to the bank face was measured on the top, bottom, upstream side, and downstream side of the pin, and these measurements were averaged to obtain a final measurement value. The bank pins were measured six times between February 2022 and July 2023 including installation and removal. The data are provided in (csv) format in the Bank Erosion Pin Child Item.

References Cited:
Rydlund, P.H., Jr., and Densmore, B.K., 2012, Methods of practice and guidelines for using survey-grade global navigation satellite systems (GNSS) to establish vertical datum in the United States Geological Survey: U.S. Geological Survey Techniques and Methods, book 11, chap. D1, 102 p. with appendixes, https://doi.org/10.3133/tm11D1.