2013 Maryland Code
§ 8-648 - Storm drain covers in highways
Any new or replacement storm drain cover, installed on a street or highway in the State, after January 1, 1980, shall consist of:
(1) Bars running perpendicular to the flow of traffic on the highway;
(2) A grating composed of intersecting bars; or
(3) Other designs approved by the Department of Transportation which meet safety design criteria as well as engineering and structural design demands.
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