AASHTO R 21 : 1999
Superseded
Superseded
View Superseded by
PRACTICE FOR DRILLING FOR SUBSURFACE INVESTIGATIONS-UNEXPECTEDLY ENCOUNTERING SUSPECTED HAZARDOUS MATERIAL
Available format(s)
Hardcopy , PDF
Language(s)
English
Published date
01-01-2013
Superseded date
08-16-2015
Superseded by
Excluding Tax where applicable
| DocumentType |
Standard
|
| Pages |
9
|
| PublisherName |
American Association of State Highway and Transportation Officials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
Summarise