Manual for Abandoned Underground Mine Inventory and Risk Assessment
Pre-Inspection Checklist Form
Pre-Inspection Checklist
A. Review Existing Information1) Abandoned Underground Mine Map Series (U.S.G.S. Based) - Obtain from ODNR. DGS and review.
2) Individual Underground Mine Abandonment Map and associated Data Form from ODNR, DGS - Obtain and Review
3) Roadway and Right of Way Plans - Review
4) Subsurface Investigation
5 Centerline Survey Plat - to help locate mine map (section lines, property lines, etc.)
6) ODNR Historic Information Regarding Subsidence Events - review for events near site
7) OSM Historic Information Regarding Subsidence Events - review for events near site
8) OMSIUA Historic Information Regarding Subsidence Events - review for events near site
9) Abandoned Underground Mine Inventory Field Data Sheets From Counties - review for reports near site
10) County Maintenance Records - review for unusual grade and drainage conditions/maintenance near site
11) Measured Geologic Sections - Obtain from ODNR, DGS and Review
12) Geologic Structure Maps - Obtain from ODNR, DGS and Review
B. Compile Overlay:
1) Scale Adjustment - use plan scale and modify mine map (if necessary) to fit
2) Manually produce composite plan view by overlaying mine map on roadway drawings.
C. Notify County Manager:
1) Inform of intent to visit site and invite to participate in site visit
2) Ask about any known records of unusual maintenance or construction at site.
D. Equipment:
shovel permanent marker DMI equipment
tape hammer measuring wheel
camera rock hammer climbing rope
notebook - with grid paper machete binoculars for sketching
locking hand level folding rule clipboard
altimeter (+/- 5 ft.) level rod, telescoping calculator
soil probe sounding rope (cord with scale weight)
mirror hiking compass straight edge
flashlight spray paint protractor
survey lath safety strobe light for vehicle
handheld GPS unit
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