POWER OF ATTORNEY
STATE OF TENNESSEE
COUNTY OF WILLIAMSON

The undersigned director, officer, and/or shareholder
of Vulcan Materials Company, a New Jersey corporation,
hereby nominates, constitutes and appoints Denson N.
Franklin III and Elizabeth H. Townsend, or any of them,
the true and lawful attorneys of the undersigned, to
prepare, based on information provided by the
undersigned, and sign the name of the undersigned
to (1) any Form 3 required to be filed with the
Securities and Exchange Commission (the "SEC") under
the Securities and Exchange Act of 1934, as amended
(the "Exchange Act"), for and on behalf of the
undersigned and any and all amendments to said report;
(2) any Form 4 required to be filed with the SEC
under the Exchange Act, for and on behalf of the
undersigned and any and all amendments to said reports;
and (3) any Form 5 to be filed with the SEC under the
Exchange Act, for and on behalf of the undersigned and
any and all amendments to said reports.

The undersigned hereby grants to said attorneys full
power of substitution, re-substitution, and revocation,
all as fully as the undersigned could do if personally
present, hereby ratifying all that said attorneys or
their substitutes may lawfully do by virtue hereof.

This Power of Attorney shall be effective for so long as
the undersigned remains subject to the provisions of
Section 16 of the Exchange Act, unless earlier revoked
by the undersigned in a signed writing delivered to the
foregoing attorneys.

IN WITNESS WHEREOF, the undersigned has executed this
Power of Attorney this 9th day of March, 2020.

/s/
David P. Clement