18 LAWS OF MARYLAND. [CH. 4

thereunder shall be subject to the approval by the Roads

Engineer of the work done under the contract. Whenever
work on any road or bridge involves an outlay of five hundred

dollars or more, plans and specifications therefor shall be pre-
pared by the Roads Engineer and bids for work invited by
reasonable publication in such papers as the Commissioners
may designate; but it shall not be obligatory upon the said
Commissioners to have such work done by contract if it be
found after receiving bids therefor that the same can be done
more cheaply by direct employment of required labor. The

County Commissioners of Baltimore County shall and may

adopt all necessary and reasonable rules, regulations and or-
ders with reference to the proper care, repair, improvements,
construction and maintenance of the county roads and
bridges, and shall have power to make all such rules and

regulations with reference to the use of the roads, streets,
avenues, lanes, alleys and bridges of the county by telephone

and telegraph companies, steam railroad and street railway

companies. gas, water and electric light companies, and simi-
lar uses thereof, and by individuals and the traveling public,
as said Commissioners may consider necessary for the proper

protection of said roads, streets, avenues, lanes, alleys and
bridges of the county and the rights of the public therein, and
impose reasonable penalties for a violation of such rules and
regulations and make other necessary provisions for the en-
forcement thereof, and shall have the right from, time to time
to change or alter the same; and all such rules and regula-
tions, when adopted and recorded in a book or books kept for
the purpose, shall have the force and effect of municipal ordi-
nances regularly adopted by authority of the Legislature of
the State of Maryland. The police, magistrates and con-
stables of the county shall be charged with the duty of en-
forcing all such rules and regulations; and, in addition to
other methods of enforcing all such rules and regulations;

said County Commissioners shall have the right to apply to
the courts of equity of the State for an injunction to enforce

compliance therewith, in which case it shall not be necessary
to make other jurisdictional averment than the threatened
breach of such rules or regulations, and said courts shall have
jurisdiction to grant such injunction on such allegations being
made. A certified copy of any of such rules and regulations
shall be deemed proper evidence of the same in any of the
courts of this State.