AASHTO MDM 1 : 1991
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
MODEL DRAINAGE MANUAL
23-07-2013
12-01-2013
Developed for use by any federal, state or local agency that intends to publish their own drainage policy and procedures manual. Written in generic terms such that the User Agency will only have to add their specific design policies and procedures to the pre-prepared text by changing the design criteria reflecting their own policies, saving the time and research on the design procedures.
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