BALTIMORE COUNTY. 725

the Roads Engineer for use on the road upon which it is proposed to be
used. All contracts made by the County Commissioners for the repair
or construction of roads or bridges or for materials to be used on the roads
shall be reduced to writing and all payments thereunder shall be subject
to the approval by the Roads Engineer of the work done or materials
furnished under such contract. Whenever work on any road or bridge
involves an outlay of five hundred dollars or more, plans and specifica-
tions therefor shall be prepared 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 Commission-
ers 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. All material and supplies to be used on the roads and
bridges involving a cost of more than two hundred and fifty dollars shall
be contracted for after requesting bids for the same by reasonable publi-
cation in the county papers, as the said Commissioners may designate;
all such material and supplies to be subject to the approval of the Roads
Engineer. Said Commissioners shall have all stone crushers, rollers,
scrapers and road materials and appliances now in the possession of the
Highways Commission of Baltimore County for use in connection with
said roads and all other property whatsoever now held by the County
Commissioners of Baltimore County as the Highways Commission of
Baltimore County, and may in their discretion purchase additions thereto.
The County Commissioners of Baltimore County shall and may adopt
all necessary and reasonable rules, regulations and orders with reference
to the proper care, repair, improvement, 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 com-
panies, steam railroad and street railway companies, gas, water and elec-
tric light companies, and similar uses thereof, as said Commissioners may
consider necessary for the proper protection of said roads, streets, ave-
nues, 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 enforcement there-
of, and shall have the right from time to time to change or alter the same;
and all such rules and regulations, when adopted and recorded in a book
or books kept for the purpose, shall have the force and effect of municipal
ordinances regularly adopted by authority of the Legislature of the State
of Maryland. The police, magistrates and constables of the county shall
be charged with the duty of enforcing all such rules and regulations;
and, in addition to other methods of enforcing compliance with such rules
and regulations, said County Commissioners or the Road Supervisor in
charge of the road involved 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 aver-
ment than the threatened breach of such rules or regulations, and said