Manual for Abandoned Underground Mine Inventory and Risk Assessment
Detailed Surface Deformation Site Evaluation
| Ohio Department of Transportation Abandoned Underground Mine Inventory and Risk Assessment Detailed Surface Deformation Site Evaluation |
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| C/R/S/ (Mile Marker): _______________________________ Field Report / Office Investigation No.__________________________ Site Description: ____________________________________________________________________________________________ __________________________________________________________________________________________________________ |
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| U.S.G.S. Topographic Quadrangle ODOT No.:______________ |
O.D.N.R. Abandoned Underground Mine Series (U.S.G.S.) Map:______________ |
O.D.N.R.,DGS Individual Abandoned Underground Mine Map Index No.:______________ (If known.) |
| Name of Site Evaluator:________________________________________________Evaluation Date:________________ | ||
| ELIMINATED SURFACE DEFORMATION SITE SCREENING | ||||||||
| NOTE: Have site investigations and /or interviews conclusively proven that the identified mine(s) at this site is (are) not an apparent threat to the safety of the roadway? | Yes_____ (SEE COMMENTS BELOW FOR BASIS OF THIS FINDING) No______ |
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| NOTE: Checking "Yes" to this question indicates that exact location, orientation and limits of influence have been verified in the field and a determination made that collapse of the opening or the closure would not affect the roadway or roadside development. | ||||||||
| Criterion | Criterion Weighting Factor |
Site Condition / Rating Value | Individual Criterion Rating | |||||
|---|---|---|---|---|---|---|---|---|
| 1) | Number of Subsidences | 30 | Number of Subsidence Features on Site | |||||
| 2) | Recent Dewatering | 21 | <1 Yr. 10 |
1 to 3 Yrs. 9 |
4 to 6 Yrs. 4 |
7 to 9 Yrs. 2 |
>9 Yrs., Unknown, or Dry Mine 1 |
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| 3) | Average Daily Traffic (ADT) | 15 | >30K 10 |
20K to 30K 8 |
10K to 20K 6 |
5K to 10K 4 |
< 5K 2 |
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| 4) | Classification of Roadway (NOTE: For intersecting Roads, See Implementation Manual) | 12 | I.R. 10 |
NHS Other Than IR 7 |
Arterial 5 |
Collector 1 |
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| 5) | Average Daily Truck Traffic (ADTT) | 9 | >6K 10 |
4K to 6K 8 |
2K to 4K 6 |
1K to 2K 4 |
< 1K 2 |
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| 6) | Traffic Speed | 6 | >35 MPH 10 |
0 to 35 MPH 1 |
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| 7) | Type of Pavement | 6 | Other 10 |
Continuously Reinforced 1 |
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| 8) | Ratio of Unconsolidated Materials to Bedrock in the Overburden Interval | 6 | Ratio = 1 or > 1 10 |
Ratio <1 1 |
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| 9) | Availability of Reasonable Detour Routes | 6 | None 10 |
Yes 0 |
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| 10) | Structures in Roadway | 3 | Yes 10 |
No 0 |
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| 11) | Minimum Overburden Thickness (Approx.) | 2 | < 25' 10 |
25' - 50' 8 |
50' - 100' 5 |
>100' 1 |
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| Overall (Total) Site Evaluation Rating: | ||||||||
| COMMENTS (Attach additional sheets if necessary): 5/15/98 |
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