UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:	December 18, 2015 12:00 P.M.

Form:	S-4
CIK: 0001571371 Company Name: Summit Materials, LLC File Number: 333-208471
CIK: 0001659384 Company Name: LeGrand Johnson Construction Co. File Number: 333-208471-30
CIK: 0001571410 Company Name: Hamm, Inc. File Number: 333-208471-29
CIK: 0001648738 Company Name: Kilgore Partners, L.P. File Number: 333-208471-28
CIK: 0001571422 Company Name: B&B Resources, Inc. File Number: 333-208471-27
CIK: 0001602836 Company Name: Alleyton Services Company, LLC File Number: 333-208471-26
CIK: 0001571397 Company Name: Austin Materials, LLC File Number: 333-208471-25
CIK: 0001571274 Company Name: Continental Cement Company, L.L.C. File Number: 333-208471-24
CIK: 0001571210 Company Name: Kilgore Companies, LLC File Number: 333-208471-23
CIK: 0001571415 Company Name: RK Hall, LLC File Number: 333-208471-22
CIK: 0001571374 Company Name: Summit Materials Corporations I, Inc. File Number: 333-208471-21
CIK: 0001571376 Company Name: Summit Materials Holdings II, LLC File Number: 333-208471-20
CIK: 0001620248 Company Name: Summit Materials International, LLC File Number: 333-208471-19
CIK: 0001648751 Company Name: Concrete Supply of Topeka, Inc. File Number: 333-208471-18
CIK: 0001571400 Company Name: Cornejo & Sons, L.L.C. File Number: 333-208471-17
CIK: 0001648752 Company Name: Lewis & Lewis, Inc. File Number: 333-208471-16
CIK: 0001571412 Company Name: N.R. Hamm Contractor, LLC File Number: 333-208471-15
CIK: 0001571403 Company Name: N.R. Hamm Quarry, LLC File Number: 333-208471-14
CIK: 0001648740 Company Name: Penny's Concrete & Ready Mix, L.L.C. File Number: 333-208471-13
CIK: 0001571406 Company Name: Bourbon Limestone Co File Number: 333-208471-12
CIK: 0001571409 Company Name: Hinkle Contracting Company, LLC File Number: 333-208471-11
CIK: 0001571393 Company Name: Con-Agg of MO, L.L.C. File Number: 333-208471-10
CIK: 0001648739 Company Name: Green America Recycling, LLC File Number: 333-208471-09
CIK: 0001620242 Company Name: Buckhorn Materials, LLC File Number: 333-208471-08
CIK: 0001648732 Company Name: Colorado County Sand & Gravel Co., L.L.C. File Number: 333-208471-07
CIK: 0001571418 Company Name: Industrial Asphalt, LLC File Number: 333-208471-06
CIK: 0001571854 Company Name: SCS Materials, LLC File Number: 333-208471-05
CIK: 0001620241 Company Name: Troy Vines, Inc File Number: 333-208471-04
CIK: 0001571522 Company Name: Summit Materials Finance Corp. File Number: 333-208471-03
CIK: 0001602835 Company Name: Alleyton Resource Company, LLC File Number: 333-208471-02
CIK: 0001571377 Company Name: Elam Construction, Inc. File Number: 333-208471-01