Exhibit 1

AGREEMENT OF JOINT FILING

(CH2M HILL COMPANIES, LTD.)

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned hereby confirm the agreement by and among them to the joint filing on behalf of them of the Statement on Schedule 13D and any and all further amendments thereto, with respect to the securities of the above referenced issuer, and that this Agreement be included as an Exhibit to such filing.  This Agreement may be executed in any number of counterparts each of which shall be deemed to be an original and all of which together shall be deemed to constitute one and the same Agreement.

IN WITNESS WHEREOF, the undersigned hereby execute this Agreement as of February 24, 2017.

AP VIII CH2 HOLDINGS, L.P.
By:	CH2 Holdings GP, LLC
	its general partner
	By:	/s/ Laurie D. Medley
	Name:	Laurie D. Medley
	Title:	Vice President
CH2 HOLDINGS GP, LLC
By:	/s/ Laurie D. Medley
Name:	Laurie D. Medley
Title:	Vice President
APOLLO INVESTMENT FUND VIII, L.P.
By:	Apollo Advisors VIII, L.P.
	its general partner
	By:	Apollo Capital Management VIII, LLC
		its general partner
		By:	/s/ Laurie D. Medley
		Name:	Laurie D. Medley
		Title:	Vice President
APOLLO MANAGEMENT VIII, L.P.
By:	AIF VIII Management, LLC
	its general partner
	By:	/s/ Laurie D. Medley
	Name:	Laurie D. Medley
	Title:	Vice President

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AIF VIII MANAGEMENT, LLC
By:	/s/ Laurie D. Medley
Name:	Laurie D. Medley
Title:	Vice President
APOLLO MANAGEMENT, L.P.
By:	Apollo Management GP, LLC
	its general partner
	By:	/s/ Laurie D. Medley
	Name:	Laurie D. Medley
	Title:	Vice President
APOLLO MANAGEMENT GP, LLC
By:	/s/ Laurie D. Medley
Name:	Laurie D. Medley
Title:	Vice President
APOLLO MANAGEMENT HOLDINGS, L.P.
By:	Apollo Management Holdings GP, LLC
	its general partner
	By:	/s/ Laurie D. Medley
	Name:	Laurie D. Medley
	Title:	Vice President
APOLLO MANAGEMENT HOLDINGS GP, LLC
By:	/s/ Laurie D. Medley
Name:	Laurie D. Medley
Title:	Vice President

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