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Supervisors authorize inventory of small culverts and drainage structures across county
Summary
County engineers presented a list of small pipes, culverts and low-span structures countywide and the board approved an inspection program to catalogue condition and schedule repairs; staff estimated roughly 245 structures and an initial inspection cost about $200 each.
County engineering staff told the Oktibbeha County Board of Supervisors they have identified a large number of smaller drainage structures—metal and plastic pipes, box culverts and short-span structures—that are not currently inspected under the state bridge inspection program.
Clyde Fritchard, who presented the count, said the effort identified roughly 245 smaller structures countywide that had not been part of regular state-aid bridge inspections. He proposed an initial inventory and inspection program to put those assets into the county's GIS system, identify deficiencies, and produce a graded list of structures by district and priority.
Fritchard said an initial inspection would cost on the order of $200 per structure as a planning estimate and that the team would integrate the findings with the county's semiannual bridge inspection program where practical. He said the initial data would also include location, approximate size and whether the county could perform surface repairs or would need to contract them out.
Supervisor Graham moved to authorize the county and its engineer to develop a small-structure drainage inventory and inspection program; the motion was seconded and passed unanimously. Board members asked for a draft report and schedule; staff estimated a first report by the end of the summer.
Engineering staff said next steps include merging the inventory into the county GIS so supervisors and the public can see asset locations and planned inspection frequency.
