diff --git a/R/tbsegdetail.R b/R/tbsegdetail.R
new file mode 100644
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--- /dev/null
+++ b/R/tbsegdetail.R
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+#' Spatial data object of detailed Tampa Bay segments
+#'
+#' Spatial data object of detailed Tampa Bay segments
+#'
+#' @format A simple features \code{\link[sf]{sf}} object (POLYGON) with 7 features and 2 fields, +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs
+#' \describe{
+#'   \item{long_name}{chr}
+#'   \item{bay_segment}{chr}
+#' }
+#'
+#' @description Note that these boundaries are not used for formal analysis and are only used as visual aids in mapping. The data object differs from \code{\link{tbseg}} by including Boca Ciega Bay, Terra Ceia Bay, and Manatee River. The boundaries are also more detailed.
+#'
+#' @concept data
+#'
+#' @examples
+#' library(sf)
+#' plot(st_geometry(tbsegdetail))
+"tbsegdetail"
diff --git a/data-raw/tbsegdetail-raw.R b/data-raw/tbsegdetail-raw.R
new file mode 100644
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+++ b/data-raw/tbsegdetail-raw.R
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+# detailed tampa bay segments, from benthic-dash ----------------------------------------------
+
+load(file = url('https://github.com/tbep-tech/benthic-dash/raw/refs/heads/main/data/segs.RData'))
+
+tbsegdetail <- segs
+
+save(tbsegdetail, file = 'data/tbsegdetail.RData', compress = 'xz')
diff --git a/data/tbsegdetail.RData b/data/tbsegdetail.RData
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index 00000000..37ce9f8f
Binary files /dev/null and b/data/tbsegdetail.RData differ
diff --git a/man/tbsegdetail.Rd b/man/tbsegdetail.Rd
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+++ b/man/tbsegdetail.Rd
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+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/tbsegdetail.R
+\docType{data}
+\name{tbsegdetail}
+\alias{tbsegdetail}
+\title{Spatial data object of detailed Tampa Bay segments}
+\format{
+A simple features \code{\link[sf]{sf}} object (POLYGON) with 7 features and 2 fields, +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs
+\describe{
+  \item{long_name}{chr}
+  \item{bay_segment}{chr}
+}
+}
+\usage{
+tbsegdetail
+}
+\description{
+Note that these boundaries are not used for formal analysis and are only used as visual aids in mapping. The data object differs from \code{\link{tbseg}} by including Boca Ciega Bay, Terra Ceia Bay, and Manatee River. The boundaries are also more detailed.
+}
+\details{
+Spatial data object of detailed Tampa Bay segments
+}
+\examples{
+library(sf)
+plot(st_geometry(tbsegdetail))
+}
+\concept{data}
+\keyword{datasets}