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Washington, DC 20590
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Manual for Abandoned Underground Mine Inventory and Risk Assessment
Figure 5.4: Site Monitoring Guidelines For The Low Rating Group Different Stages of Site Monitoring

Forms of Monitoring Different Stages of Site Monitoring
Before Priority Site Investigations After Priority Site Investigations
Remediation Deferred During Construction Document Development During Remediation Construction Post Remediation Construction
I. Visual
   - Driving M        
   - On the Ground: Particular Features S        
   - On the Ground: Ground Photography S        
II. Non - Intrusive
   - Profilometer M        
   - Dynaflect          
   - FWD S        
   - HWD          
   - Ground Survey Techniques S        
   - Aerial Photography: Conventional
   (B/W & Color)
S        
   - Aerial Photography:Infraredd (B/W & Color) S        
   - Surface GPR S        
   - Other **          
III. Intrusive (Borings Required)
   - Borehole GPR          
   - TDR          
   - Slope Inclinometer          
   - Borehole Seismic          
   - Borehole Camera          
   - Piezometers          
   - Observation wells          

Notes:

"M" indicates a general monitoring guideline for the site group
"T" indicates where traffic is maintained during construction
"S" indicates determined on a site specific basis
** Other forms of monitoring may be specified on a site-by-site basis as needed.
See Table 5.2 for Listing of "Other forms of Monitoring."

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Updated: 06/27/2017
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000