Employee Benefits

All of the Company's marine segment employees except the Associate Divers, the Associate Tugmasters, and union employees in the Pacific Northwest, are eligible to participate in the Company’s 401(k) Retirement Plan after completing six months of service. Each participant may contribute between 1% and 80% of eligible compensation on a pre-tax basis, up to the annual IRS limit. The Company matches 100% on the first 2% of eligible compensation contributed to the Plan and 50% on the next 2% of eligible compensation contributed to the Plan. Participants’ contributions are fully vested at all times. Employer matching contributions vest over a four-year period. At its discretion, the Company may make additional matching and profit-sharing contributions. During the years ended December 31, 2018, 2017 and 2016 the Company contributed $1.4 million to the Plan, respectively.

All of the Company's concrete segment employees except Leads, Helpers, Laborers, Finishers, Formsetters, Carpenters, Rodbusters, Patchmen, Equipment Operators, Field Engineering Trainees and certain Highly Compensated Employees are eligible to participate in the AGC Southwest Chapters 401(k) Retirement Plan, a multiple employer plan, after completing three months of service. Each participant may contribute up to the annual IRS limit. The Company matches 50% on the first 6% of eligible compensation contributed to the Plan. Participants’ contributions are fully vested at all times. Employer matching contributions vest over a five-year period. At its discretion, the Company may make additional matching and profit-sharing contributions. During the year ended December 31, 2018, 2017 and 2015, the Company contributed $0.2 million, $0.4 million and $0.2 million, respectively.

The Company's marine segment contributes to several multi-employer defined pension plans under the terms of collective-bargaining agreements that cover its union-represented employees. Risks of participating in these multi-employer plans are different from single-employer plans in the following aspects:


•	Assets contributed to the multi-employer plan by one employer may be used to provide benefits to employees of other participating employers;


•	If a participating employer stops contributing to the plan, the unfunded obligations of the plan may be borne by the remaining participating employers; and


•	If the Company chooses to stop participating in its multi-employer plans, it may be required to pay a withdrawal liability based on the underfunded status of the plan.

Currently, the Company's concrete segment does not have union represented employees and, thus, does not participate under the above-mentioned defined pension plans, or any other plans, that cover union-represented employees.

The following table presents the Company's participation in these plans:



		Pension Protection Act ("PPA") Certified Zone Status (1)		FIP/RP Status	Contributions							Expiration of Collective Bargaining Agreement
	Employer Identification Number	Pension Protection Act ("PPA") Certified Zone Status (1)		FIP/RP Status	Contributions						Surcharge Imposed
Pension Trust Fund	Employer Identification Number	2018	2017	P/I (2)	2018		2017		2016		Surcharge Imposed
International Union of Operating Engineers - Employers Construction Industry Retirement Plan - Local 302 and 612 Trust Funds	91-6028571	Green	Green	N/A	$	2,482	$	1,974	$	2,158	—	2021
Associated General Contractors of Washington Carpenter, Piledrivers, and Millwrights	91-6029051 91-6029049	Green	Green	N/A	$	932	$	693	$	938	—	2021
Alaska Carpenters Trust Fund	92-0120866	Green	Green	N/A	$	328	$	396	$	889	—	2020
Alaska Laborers Trust Fund	91-6028298	Yellow	Yellow	I	$	321	$	218	$	126	—	2019

(1) The most recent PPA zone status available in 2018 and 2017 is for the plan's year end during 2017 and 2016, respectively. Zone status is based on information received from the plan and is indicative of the plans funding status. Among other factors, plans in the red zone are generally less than 65 percent funded, plans in the orange zone are less than 80 percent funded and have an Accumulated Funding Deficiency in the current year or projected into the next six years, plans in the yellow zone are less than 80 percent funded, and plans in the green zone are at least 80 percent funded.

(2) The FIP/RP Status P/I column indicates plans for which a financial improvement plan ("FIP") or a rehabilitation plan ("RP") is either pending ("P"), or implemented ("I").

There are currently no plans to withdraw from any of the multi-employer plans in which the Company participates.