GREAT LAKES DREDGE & DOCK COMPANY,
Plan context: Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan
EIN 20-1354414 • Oak Brook, IL • 105 filings • 23 plans
Current Snapshot
Latest Year
2025
2025 Participants
555
2025 Assets
$225,431,134
2025 Contributions
$10,510,565
Historical Graphs
Total Assets Over Time
Aggregate end-of-year assets by filing year, excluding zero-asset years
Participants Over Time
Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans
Company Timeline
Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.
| Year / Filing | Filings | Participants | Assets | Contributions | Contrib./Participant |
|---|---|---|---|---|---|
| 2025 | 1 | 555 | $0 | $0 | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 555 | - | - | - |
| 2024 | 3 | 508 | $225,431,134 | $10,510,565 | $20,690iApproximate average salary by contribution assumption: employee only about $517,252 at 4% or $344,835 at 6%; with 50% employer match about $344,835 at 4% or $229,890 at 6%; with 100% employer match about $258,626 at 4% or $172,417 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 389 | $217,252,360 | $9,834,963 | $25,283iApproximate average salary by contribution assumption: employee only about $632,067 at 4% or $421,378 at 6%; with 50% employer match about $421,378 at 4% or $280,919 at 6%; with 100% employer match about $316,034 at 4% or $210,689 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 215 | $8,178,774 | $675,602 | $3,142iApproximate average salary by contribution assumption: employee only about $78,558 at 4% or $52,372 at 6%; with 50% employer match about $52,372 at 4% or $34,915 at 6%; with 100% employer match about $39,279 at 4% or $26,186 at 6%. |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 508 | - | - | - |
| 2023 | 3 | 1,031 | $201,859,849 | $7,069,378 | $6,857iApproximate average salary by contribution assumption: employee only about $171,420 at 4% or $114,280 at 6%; with 50% employer match about $114,280 at 4% or $76,187 at 6%; with 100% employer match about $85,710 at 4% or $57,140 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 365 | $195,045,463 | $6,466,729 | $17,717iApproximate average salary by contribution assumption: employee only about $442,927 at 4% or $295,284 at 6%; with 50% employer match about $295,284 at 4% or $196,856 at 6%; with 100% employer match about $221,463 at 4% or $147,642 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 194 | $6,814,386 | $602,649 | $3,106iApproximate average salary by contribution assumption: employee only about $77,661 at 4% or $51,774 at 6%; with 50% employer match about $51,774 at 4% or $34,516 at 6%; with 100% employer match about $38,830 at 4% or $25,887 at 6%. |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 1,031 | - | - | - |
| 2022 | 3 | 424 | $176,669,457 | $10,276,189 | $24,236iApproximate average salary by contribution assumption: employee only about $605,907 at 4% or $403,938 at 6%; with 50% employer match about $403,938 at 4% or $269,292 at 6%; with 100% employer match about $302,954 at 4% or $201,969 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 424 | $171,100,161 | $9,569,781 | $22,570iApproximate average salary by contribution assumption: employee only about $564,256 at 4% or $376,171 at 6%; with 50% employer match about $376,171 at 4% or $250,780 at 6%; with 100% employer match about $282,128 at 4% or $188,085 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 220 | $5,569,296 | $706,408 | $3,211iApproximate average salary by contribution assumption: employee only about $80,274 at 4% or $53,516 at 6%; with 50% employer match about $53,516 at 4% or $35,677 at 6%; with 100% employer match about $40,137 at 4% or $26,758 at 6%. |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 399 | - | - | - |
| 2021 | 3 | 496 | $223,685,491 | $11,675,731 | $23,540iApproximate average salary by contribution assumption: employee only about $588,495 at 4% or $392,330 at 6%; with 50% employer match about $392,330 at 4% or $261,553 at 6%; with 100% employer match about $294,247 at 4% or $196,165 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 408 | $215,651,386 | $10,790,087 | $26,446iApproximate average salary by contribution assumption: employee only about $661,157 at 4% or $440,772 at 6%; with 50% employer match about $440,772 at 4% or $293,848 at 6%; with 100% employer match about $330,579 at 4% or $220,386 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 209 | $8,034,105 | $885,644 | $4,238iApproximate average salary by contribution assumption: employee only about $105,938 at 4% or $70,626 at 6%; with 50% employer match about $70,626 at 4% or $47,084 at 6%; with 100% employer match about $52,969 at 4% or $35,313 at 6%. |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 496 | - | - | - |
| 2020 | 3 | 482 | $215,346,266 | $10,225,611 | $21,215iApproximate average salary by contribution assumption: employee only about $530,374 at 4% or $353,583 at 6%; with 50% employer match about $353,583 at 4% or $235,722 at 6%; with 100% employer match about $265,187 at 4% or $176,791 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 404 | $208,813,570 | $9,866,074 | $24,421iApproximate average salary by contribution assumption: employee only about $610,524 at 4% or $407,016 at 6%; with 50% employer match about $407,016 at 4% or $271,344 at 6%; with 100% employer match about $305,262 at 4% or $203,508 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 192 | $6,532,696 | $359,537 | $1,873iApproximate average salary by contribution assumption: employee only about $46,815 at 4% or $31,210 at 6%; with 50% employer match about $31,210 at 4% or $20,807 at 6%; with 100% employer match about $23,407 at 4% or $15,605 at 6%. |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 482 | - | - | - |
| 2019 | 3 | 514 | $178,378,375 | $11,107,296 | $21,610iApproximate average salary by contribution assumption: employee only about $540,238 at 4% or $360,159 at 6%; with 50% employer match about $360,159 at 4% or $240,106 at 6%; with 100% employer match about $270,119 at 4% or $180,079 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 384 | $172,165,137 | $10,589,266 | $27,576iApproximate average salary by contribution assumption: employee only about $689,405 at 4% or $459,604 at 6%; with 50% employer match about $459,604 at 4% or $306,402 at 6%; with 100% employer match about $344,703 at 4% or $229,802 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 167 | $6,213,238 | $518,030 | $3,102iApproximate average salary by contribution assumption: employee only about $77,549 at 4% or $51,700 at 6%; with 50% employer match about $51,700 at 4% or $34,466 at 6%; with 100% employer match about $38,775 at 4% or $25,850 at 6%. |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 514 | - | - | - |
| 2018 | 3 | 562 | $145,921,521 | $7,861,917 | $13,989iApproximate average salary by contribution assumption: employee only about $349,729 at 4% or $233,153 at 6%; with 50% employer match about $233,153 at 4% or $155,435 at 6%; with 100% employer match about $174,865 at 4% or $116,576 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 479 | $140,735,019 | $7,215,331 | $15,063iApproximate average salary by contribution assumption: employee only about $376,583 at 4% or $251,055 at 6%; with 50% employer match about $251,055 at 4% or $167,370 at 6%; with 100% employer match about $188,292 at 4% or $125,528 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 308 | $5,186,502 | $646,586 | $2,099iApproximate average salary by contribution assumption: employee only about $52,483 at 4% or $34,988 at 6%; with 50% employer match about $34,988 at 4% or $23,326 at 6%; with 100% employer match about $26,241 at 4% or $17,494 at 6%. |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 562 | - | - | - |
| 2017 | 5 | 474 | $163,818,534 | $9,105,692 | $19,210iApproximate average salary by contribution assumption: employee only about $480,258 at 4% or $320,172 at 6%; with 50% employer match about $320,172 at 4% or $213,448 at 6%; with 100% employer match about $240,129 at 4% or $160,086 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 412 | $158,825,119 | $6,706,444 | $16,278iApproximate average salary by contribution assumption: employee only about $406,944 at 4% or $271,296 at 6%; with 50% employer match about $271,296 at 4% or $180,864 at 6%; with 100% employer match about $203,472 at 4% or $135,648 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 360 | $4,993,415 | $1,114,968 | $3,097iApproximate average salary by contribution assumption: employee only about $77,428 at 4% or $51,619 at 6%; with 50% employer match about $51,619 at 4% or $34,413 at 6%; with 100% employer match about $38,714 at 4% or $25,809 at 6%. |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 474 | - | - | - |
| Great Lakes Dredge & Dock Affiliated Companies 401K Savings Plan | - | 0 | - | $1,284,280 | - |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 0 | - | - | - |
| 2016 | 5 | 980 | $133,567,210 | $13,159,789 | $13,428iApproximate average salary by contribution assumption: employee only about $335,709 at 4% or $223,806 at 6%; with 50% employer match about $223,806 at 4% or $149,204 at 6%; with 100% employer match about $167,854 at 4% or $111,903 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 477 | $123,896,719 | $10,439,277 | $21,885iApproximate average salary by contribution assumption: employee only about $547,132 at 4% or $364,755 at 6%; with 50% employer match about $364,755 at 4% or $243,170 at 6%; with 100% employer match about $273,566 at 4% or $182,377 at 6%. |
| Great Lakes Dredge & Dock Affiliated Companies 401K Savings Plan | - | 122 | $5,612,360 | $1,458,183 | $11,952iApproximate average salary by contribution assumption: employee only about $298,808 at 4% or $199,205 at 6%; with 50% employer match about $199,205 at 4% or $132,804 at 6%; with 100% employer match about $149,404 at 4% or $99,603 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 589 | $4,010,658 | $1,262,329 | $2,143iApproximate average salary by contribution assumption: employee only about $53,579 at 4% or $35,720 at 6%; with 50% employer match about $35,720 at 4% or $23,813 at 6%; with 100% employer match about $26,790 at 4% or $17,860 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 3 | $47,473 | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 980 | - | - | - |
| 2015 | 6 | 1,381 | $120,089,084 | $11,577,582 | $8,383iApproximate average salary by contribution assumption: employee only about $209,587 at 4% or $139,725 at 6%; with 50% employer match about $139,725 at 4% or $93,150 at 6%; with 100% employer match about $104,793 at 4% or $69,862 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 470 | $111,775,436 | $8,858,416 | $18,848iApproximate average salary by contribution assumption: employee only about $471,192 at 4% or $314,128 at 6%; with 50% employer match about $314,128 at 4% or $209,419 at 6%; with 100% employer match about $235,596 at 4% or $157,064 at 6%. |
| Great Lakes Dredge & Dock Affiliated Companies 401K Savings Plan | - | 179 | $4,875,475 | $1,594,972 | $8,910iApproximate average salary by contribution assumption: employee only about $222,761 at 4% or $148,508 at 6%; with 50% employer match about $148,508 at 4% or $99,005 at 6%; with 100% employer match about $111,381 at 4% or $74,254 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 1,381 | $3,391,015 | $1,124,194 | $814iApproximate average salary by contribution assumption: employee only about $20,351 at 4% or $13,567 at 6%; with 50% employer match about $13,567 at 4% or $9,045 at 6%; with 100% employer match about $10,176 at 4% or $6,784 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 2 | $47,158 | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 953 | - | - | - |
| NY MARINE T/T INDUSTRY PLAN II | - | 0 | - | - | - |
| 2014 | 7 | 471 | $115,264,850 | $10,402,004 | $22,085iApproximate average salary by contribution assumption: employee only about $552,123 at 4% or $368,082 at 6%; with 50% employer match about $368,082 at 4% or $245,388 at 6%; with 100% employer match about $276,062 at 4% or $184,041 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 450 | $108,149,231 | $8,951,303 | $19,892iApproximate average salary by contribution assumption: employee only about $497,295 at 4% or $331,530 at 6%; with 50% employer match about $331,530 at 4% or $221,020 at 6%; with 100% employer match about $248,647 at 4% or $165,765 at 6%. |
| Great Lakes Dredge & Dock Affiliated Companies 401K Savings Plan | - | 166 | $4,151,056 | $868,246 | $5,230iApproximate average salary by contribution assumption: employee only about $130,760 at 4% or $87,173 at 6%; with 50% employer match about $87,173 at 4% or $58,116 at 6%; with 100% employer match about $65,380 at 4% or $43,587 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 390 | $2,892,560 | $582,455 | $1,493iApproximate average salary by contribution assumption: employee only about $37,337 at 4% or $24,891 at 6%; with 50% employer match about $24,891 at 4% or $16,594 at 6%; with 100% employer match about $18,668 at 4% or $12,446 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 14 | $59,600 | - | - |
| NY MARINE T/T INDUSTRY PLAN II | - | 16 | $12,403 | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 471 | - | - | - |
| Flexible Benefit Plan of Great Lakes Dredge & Dock Company LLC | - | 0 | - | - | - |
| 2013 | 9 | 763 | $113,861,929 | $9,531,273 | $12,492iApproximate average salary by contribution assumption: employee only about $312,296 at 4% or $208,197 at 6%; with 50% employer match about $208,197 at 4% or $138,798 at 6%; with 100% employer match about $156,148 at 4% or $104,099 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 468 | $102,935,046 | $8,224,542 | $17,574iApproximate average salary by contribution assumption: employee only about $439,345 at 4% or $292,897 at 6%; with 50% employer match about $292,897 at 4% or $195,265 at 6%; with 100% employer match about $219,673 at 4% or $146,448 at 6%. |
| GREAT LAKES DREDGE & DOCK AFFILIATED COMPANIES 401K SAVINGS PLAN | - | 160 | $3,932,945 | $355,623 | $2,223iApproximate average salary by contribution assumption: employee only about $55,566 at 4% or $37,044 at 6%; with 50% employer match about $37,044 at 4% or $24,696 at 6%; with 100% employer match about $27,783 at 4% or $18,522 at 6%. |
| Great Lakes Dredge & Dock Affiliated Companies 401K Savings Plan | - | 160 | $3,932,945 | $355,623 | $2,223iApproximate average salary by contribution assumption: employee only about $55,566 at 4% or $37,044 at 6%; with 50% employer match about $37,044 at 4% or $24,696 at 6%; with 100% employer match about $27,783 at 4% or $18,522 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 763 | $2,567,009 | $218,710 | $287iApproximate average salary by contribution assumption: employee only about $7,166 at 4% or $4,777 at 6%; with 50% employer match about $4,777 at 4% or $3,185 at 6%; with 100% employer match about $3,583 at 4% or $2,389 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 14 | $481,587 | - | - |
| NY MARINE T/T INDUSTRY PLAN II | - | 22 | $12,397 | - | - |
| Flexible Benefit Plan of Great Lakes Dredge & Dock Company LLC | - | 83 | - | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 472 | - | - | - |
| L.W. MATTESON A DIVISION OF GREAT LAKES DREDGE & DOCK COMPANY, LLC SAVINGS PLAN | - | 0 | $0 | $376,775 | - |
| 2012 | 7 | 597 | $88,988,439 | $8,270,550 | $13,854iApproximate average salary by contribution assumption: employee only about $346,338 at 4% or $230,892 at 6%; with 50% employer match about $230,892 at 4% or $153,928 at 6%; with 100% employer match about $173,169 at 4% or $115,446 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 466 | $86,424,034 | $7,553,276 | $16,209iApproximate average salary by contribution assumption: employee only about $405,219 at 4% or $270,146 at 6%; with 50% employer match about $270,146 at 4% or $180,097 at 6%; with 100% employer match about $202,609 at 4% or $135,073 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 597 | $1,538,547 | $259,419 | $435iApproximate average salary by contribution assumption: employee only about $10,863 at 4% or $7,242 at 6%; with 50% employer match about $7,242 at 4% or $4,828 at 6%; with 100% employer match about $5,432 at 4% or $3,621 at 6%. |
| L.W. MATTESON A DIVISION OF GREAT LAKES DREDGE & DOCK COMPANY, LLC SAVINGS PLAN | - | 56 | $605,414 | $436,252 | $7,790iApproximate average salary by contribution assumption: employee only about $194,755 at 4% or $129,837 at 6%; with 50% employer match about $129,837 at 4% or $86,558 at 6%; with 100% employer match about $97,378 at 4% or $64,918 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 14 | $407,886 | $21,603 | $1,543iApproximate average salary by contribution assumption: employee only about $38,577 at 4% or $25,718 at 6%; with 50% employer match about $25,718 at 4% or $17,145 at 6%; with 100% employer match about $19,288 at 4% or $12,859 at 6%. |
| NY MARINE T/T INDUSTRY PLAN II | - | - | $12,558 | - | - |
| Flexible Benefit Plan of Great Lakes Dredge & Dock Company LLC | - | 92 | - | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 367 | - | - | - |
| 2011 | 7 | 511 | $78,286,021 | $7,996,313 | $15,648iApproximate average salary by contribution assumption: employee only about $391,209 at 4% or $260,806 at 6%; with 50% employer match about $260,806 at 4% or $173,871 at 6%; with 100% employer match about $195,605 at 4% or $130,403 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 448 | $75,359,014 | $7,482,408 | $16,702iApproximate average salary by contribution assumption: employee only about $417,545 at 4% or $278,363 at 6%; with 50% employer match about $278,363 at 4% or $185,576 at 6%; with 100% employer match about $208,773 at 4% or $139,182 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 511 | $1,447,377 | $172,371 | $337iApproximate average salary by contribution assumption: employee only about $8,433 at 4% or $5,622 at 6%; with 50% employer match about $5,622 at 4% or $3,748 at 6%; with 100% employer match about $4,217 at 4% or $2,811 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 29 | $1,318,741 | $192,296 | $6,631iApproximate average salary by contribution assumption: employee only about $165,772 at 4% or $110,515 at 6%; with 50% employer match about $110,515 at 4% or $73,677 at 6%; with 100% employer match about $82,886 at 4% or $55,257 at 6%. |
| L. W. MATTESON A DIVISION OF GREAT LAKES DREDGE & DOCK COMPANY, LLC SAVINGS PLAN | - | 28 | $148,348 | $149,238 | $5,330iApproximate average salary by contribution assumption: employee only about $133,248 at 4% or $88,832 at 6%; with 50% employer match about $88,832 at 4% or $59,221 at 6%; with 100% employer match about $66,624 at 4% or $44,416 at 6%. |
| NY MARINE T/T INDUSTRY PLAN II | - | - | $12,541 | - | - |
| Flexible Benefit Plan of Great Lakes Dredge & Dock Company LLC | - | 92 | - | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 331 | - | - | - |
| 2010 | 6 | 434 | $78,200,022 | $4,994,064 | $11,507iApproximate average salary by contribution assumption: employee only about $287,676 at 4% or $191,784 at 6%; with 50% employer match about $191,784 at 4% or $127,856 at 6%; with 100% employer match about $143,838 at 4% or $95,892 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 432 | $75,450,018 | $4,610,644 | $10,673iApproximate average salary by contribution assumption: employee only about $266,820 at 4% or $177,880 at 6%; with 50% employer match about $177,880 at 4% or $118,587 at 6%; with 100% employer match about $133,410 at 4% or $88,940 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 434 | $1,433,014 | $164,792 | $380iApproximate average salary by contribution assumption: employee only about $9,493 at 4% or $6,328 at 6%; with 50% employer match about $6,328 at 4% or $4,219 at 6%; with 100% employer match about $4,746 at 4% or $3,164 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 38 | $1,304,456 | $218,628 | $5,753iApproximate average salary by contribution assumption: employee only about $143,834 at 4% or $95,889 at 6%; with 50% employer match about $95,889 at 4% or $63,926 at 6%; with 100% employer match about $71,917 at 4% or $47,945 at 6%. |
| NY MARINE T/T INDUSTRY PLAN II | - | 22 | $12,534 | - | - |
| Flexible Benefit Plan of Great Lakes Dredge & Dock Company LLC | - | 90 | - | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 340 | - | - | - |
| 2009 | 6 | 466 | $69,624,228 | $6,675,871 | $14,326iApproximate average salary by contribution assumption: employee only about $358,148 at 4% or $238,765 at 6%; with 50% employer match about $238,765 at 4% or $159,177 at 6%; with 100% employer match about $179,074 at 4% or $119,383 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 392 | $67,330,837 | $6,386,370 | $16,292iApproximate average salary by contribution assumption: employee only about $407,294 at 4% or $271,529 at 6%; with 50% employer match about $271,529 at 4% or $181,020 at 6%; with 100% employer match about $203,647 at 4% or $135,765 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 466 | $1,170,247 | $172,686 | $371iApproximate average salary by contribution assumption: employee only about $9,264 at 4% or $6,176 at 6%; with 50% employer match about $6,176 at 4% or $4,117 at 6%; with 100% employer match about $4,632 at 4% or $3,088 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 35 | $1,110,616 | $116,815 | $3,338iApproximate average salary by contribution assumption: employee only about $83,439 at 4% or $55,626 at 6%; with 50% employer match about $55,626 at 4% or $37,084 at 6%; with 100% employer match about $41,720 at 4% or $27,813 at 6%. |
| NY MARINE T/T INDUSTRY PLAN II | - | 22 | $12,528 | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 318 | - | - | - |
| Flexible Benefit Plan of Great Lakes Dredge & Dock Company LLC | - | 79 | - | - | - |
| 2008 | 6 | 391 | $50,563,107 | $6,612,185 | $16,911iApproximate average salary by contribution assumption: employee only about $422,774 at 4% or $281,849 at 6%; with 50% employer match about $281,849 at 4% or $187,900 at 6%; with 100% employer match about $211,387 at 4% or $140,925 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 358 | $48,864,479 | $6,132,250 | $17,129iApproximate average salary by contribution assumption: employee only about $428,230 at 4% or $285,486 at 6%; with 50% employer match about $285,486 at 4% or $190,324 at 6%; with 100% employer match about $214,115 at 4% or $142,743 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 38 | $913,587 | $229,510 | $6,040iApproximate average salary by contribution assumption: employee only about $150,993 at 4% or $100,662 at 6%; with 50% employer match about $100,662 at 4% or $67,108 at 6%; with 100% employer match about $75,497 at 4% or $50,331 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 391 | $785,041 | $250,425 | $640iApproximate average salary by contribution assumption: employee only about $16,012 at 4% or $10,675 at 6%; with 50% employer match about $10,675 at 4% or $7,116 at 6%; with 100% employer match about $8,006 at 4% or $5,337 at 6%. |
| NY MARINE T/T INDUSTRY PLAN II | - | 0 | - | - | - |
| Flexible Benefit Plan of Great Lakes Dredge & Dock Company LLC | - | 82 | - | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 276 | - | - | - |
| 2007 | 6 | 375 | $68,442,805 | $5,824,121 | $15,531iApproximate average salary by contribution assumption: employee only about $388,275 at 4% or $258,850 at 6%; with 50% employer match about $258,850 at 4% or $172,567 at 6%; with 100% employer match about $194,137 at 4% or $129,425 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 338 | $67,565,853 | $5,707,437 | $16,886iApproximate average salary by contribution assumption: employee only about $422,148 at 4% or $281,432 at 6%; with 50% employer match about $281,432 at 4% or $187,621 at 6%; with 100% employer match about $211,074 at 4% or $140,716 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 375 | $876,952 | $116,684 | $311iApproximate average salary by contribution assumption: employee only about $7,779 at 4% or $5,186 at 6%; with 50% employer match about $5,186 at 4% or $3,457 at 6%; with 100% employer match about $3,889 at 4% or $2,593 at 6%. |
| NY MARINE T/T INDUSTRY PLAN II | - | 0 | - | - | - |
| Flexible Benefit Plan of Great Lakes Dredge & Dock Company LLC | - | 75 | - | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 272 | - | - | - |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 41 | - | - | - |
| 2006 | 6 | 339 | $61,573,667 | $5,580,733 | $16,462iApproximate average salary by contribution assumption: employee only about $411,558 at 4% or $274,372 at 6%; with 50% employer match about $274,372 at 4% or $182,915 at 6%; with 100% employer match about $205,779 at 4% or $137,186 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 299 | $59,878,855 | $5,253,783 | $17,571iApproximate average salary by contribution assumption: employee only about $439,280 at 4% or $292,853 at 6%; with 50% employer match about $292,853 at 4% or $195,235 at 6%; with 100% employer match about $219,640 at 4% or $146,427 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 40 | $939,722 | $218,419 | $5,460iApproximate average salary by contribution assumption: employee only about $136,512 at 4% or $91,008 at 6%; with 50% employer match about $91,008 at 4% or $60,672 at 6%; with 100% employer match about $68,256 at 4% or $45,504 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 339 | $741,113 | $108,531 | $320iApproximate average salary by contribution assumption: employee only about $8,004 at 4% or $5,336 at 6%; with 50% employer match about $5,336 at 4% or $3,557 at 6%; with 100% employer match about $4,002 at 4% or $2,668 at 6%. |
| NY MARINE T/T INDUSTRY PLAN II | - | 0 | $13,977 | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 251 | - | - | - |
| Flexible Benefit Plan of Great Lakes Dredge & Dock Company LLC | - | 76 | - | - | - |
| 2005 | 6 | 287 | $52,975,692 | $4,992,099 | $17,394iApproximate average salary by contribution assumption: employee only about $434,852 at 4% or $289,901 at 6%; with 50% employer match about $289,901 at 4% or $193,267 at 6%; with 100% employer match about $217,426 at 4% or $144,951 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Savings Plan | - | 287 | $51,597,740 | $4,705,138 | $16,394iApproximate average salary by contribution assumption: employee only about $409,855 at 4% or $273,237 at 6%; with 50% employer match about $273,237 at 4% or $182,158 at 6%; with 100% employer match about $204,928 at 4% or $136,618 at 6%. |
| Great Lakes Dredge & Dock Company LLC 401(K) Local 333 Savings Plan Trust | - | 37 | $699,268 | $185,458 | $5,012iApproximate average salary by contribution assumption: employee only about $125,309 at 4% or $83,540 at 6%; with 50% employer match about $83,540 at 4% or $55,693 at 6%; with 100% employer match about $62,655 at 4% or $41,770 at 6%. |
| Great Lakes Dredge & Dock Company LLC Hourly Employees 401(K) Savings Plan | - | 275 | $661,177 | $101,503 | $369iApproximate average salary by contribution assumption: employee only about $9,228 at 4% or $6,152 at 6%; with 50% employer match about $6,152 at 4% or $4,101 at 6%; with 100% employer match about $4,614 at 4% or $3,076 at 6%. |
| NY MARINE T/T INDUSTRY PLAN II | - | 0 | $17,507 | - | - |
| Flexible Benefit Plan of Great Lakes Dredge & Dock Company LLC | - | 70 | - | - | - |
| Welfare Plan of Great Lakes Dredge & Dock Company LLC | - | 245 | - | - | - |
| 2004 | 1 | 0 | $17,495 | $0 | - |
| NY MARINE T/T INDUSTRY PLAN II | - | 0 | $17,495 | - | - |