Civic Intelligence

West Plains Engineering Inc.

Plan context: West Plains Engineering Inc. 401(K) Plan

EIN 46-0424028 • Rapid City, SD • 26 filings • 4 plans

1750 Rand RoadRapid City, SD 57702
Current Snapshot

Latest Year

2024

2024 Participants

67

2024 Assets

$12,471,034

2024 Contributions

$847,329

Historical Graphs

Total Assets Over Time

Aggregate end-of-year assets by filing year, excluding zero-asset years

$12,850,916$6,425,458$0199920132024YearValue
$12,471,034Latest year 2024

Participants Over Time

Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans

71360199920122024YearValue
67Latest year 2024

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 / FilingFilingsParticipantsAssetsContributionsContrib./Participant
2024167$12,471,034$847,329$12,647iApproximate average salary by contribution assumption: employee only about $316,168 at 4% or $210,778 at 6%; with 50% employer match about $210,778 at 4% or $140,519 at 6%; with 100% employer match about $158,084 at 4% or $105,389 at 6%.
West Plains Engineering Inc. 401(K) Plan-67$12,471,034$847,329$12,647iApproximate average salary by contribution assumption: employee only about $316,168 at 4% or $210,778 at 6%; with 50% employer match about $210,778 at 4% or $140,519 at 6%; with 100% employer match about $158,084 at 4% or $105,389 at 6%.
2023171$12,850,916$773,627$10,896iApproximate average salary by contribution assumption: employee only about $272,404 at 4% or $181,603 at 6%; with 50% employer match about $181,603 at 4% or $121,068 at 6%; with 100% employer match about $136,202 at 4% or $90,801 at 6%.
West Plains Engineering Inc. 401(K) Plan-71$12,850,916$773,627$10,896iApproximate average salary by contribution assumption: employee only about $272,404 at 4% or $181,603 at 6%; with 50% employer match about $181,603 at 4% or $121,068 at 6%; with 100% employer match about $136,202 at 4% or $90,801 at 6%.
2022164$10,077,313$566,590$8,853iApproximate average salary by contribution assumption: employee only about $221,324 at 4% or $147,549 at 6%; with 50% employer match about $147,549 at 4% or $98,366 at 6%; with 100% employer match about $110,662 at 4% or $73,775 at 6%.
West Plains Engineering Inc. 401(K) Plan-64$10,077,313$566,590$8,853iApproximate average salary by contribution assumption: employee only about $221,324 at 4% or $147,549 at 6%; with 50% employer match about $147,549 at 4% or $98,366 at 6%; with 100% employer match about $110,662 at 4% or $73,775 at 6%.
2021164$12,320,202$472,516$7,383iApproximate average salary by contribution assumption: employee only about $184,577 at 4% or $123,051 at 6%; with 50% employer match about $123,051 at 4% or $82,034 at 6%; with 100% employer match about $92,288 at 4% or $61,526 at 6%.
West Plains Engineering Inc. 401(K) Plan-64$12,320,202$472,516$7,383iApproximate average salary by contribution assumption: employee only about $184,577 at 4% or $123,051 at 6%; with 50% employer match about $123,051 at 4% or $82,034 at 6%; with 100% employer match about $92,288 at 4% or $61,526 at 6%.
2020166$10,748,479$474,544$7,190iApproximate average salary by contribution assumption: employee only about $179,752 at 4% or $119,834 at 6%; with 50% employer match about $119,834 at 4% or $79,890 at 6%; with 100% employer match about $89,876 at 4% or $59,917 at 6%.
West Plains Engineering Inc. 401(K) Plan-66$10,748,479$474,544$7,190iApproximate average salary by contribution assumption: employee only about $179,752 at 4% or $119,834 at 6%; with 50% employer match about $119,834 at 4% or $79,890 at 6%; with 100% employer match about $89,876 at 4% or $59,917 at 6%.
2019165$8,731,966$547,639$8,425iApproximate average salary by contribution assumption: employee only about $210,630 at 4% or $140,420 at 6%; with 50% employer match about $140,420 at 4% or $93,614 at 6%; with 100% employer match about $105,315 at 4% or $70,210 at 6%.
West Plains Engineering Inc. 401(K) Plan-65$8,731,966$547,639$8,425iApproximate average salary by contribution assumption: employee only about $210,630 at 4% or $140,420 at 6%; with 50% employer match about $140,420 at 4% or $93,614 at 6%; with 100% employer match about $105,315 at 4% or $70,210 at 6%.
2018167$7,709,775$736,993$11,000iApproximate average salary by contribution assumption: employee only about $274,997 at 4% or $183,332 at 6%; with 50% employer match about $183,332 at 4% or $122,221 at 6%; with 100% employer match about $137,499 at 4% or $91,666 at 6%.
West Plains Engineering Inc. 401(K) Plan-67$7,709,775$736,993$11,000iApproximate average salary by contribution assumption: employee only about $274,997 at 4% or $183,332 at 6%; with 50% employer match about $183,332 at 4% or $122,221 at 6%; with 100% employer match about $137,499 at 4% or $91,666 at 6%.
2017163$7,649,886$610,561$9,691iApproximate average salary by contribution assumption: employee only about $242,286 at 4% or $161,524 at 6%; with 50% employer match about $161,524 at 4% or $107,683 at 6%; with 100% employer match about $121,143 at 4% or $80,762 at 6%.
West Plains Engineering Inc. 401(K) Plan-63$7,649,886$610,561$9,691iApproximate average salary by contribution assumption: employee only about $242,286 at 4% or $161,524 at 6%; with 50% employer match about $161,524 at 4% or $107,683 at 6%; with 100% employer match about $121,143 at 4% or $80,762 at 6%.
2016161$5,951,247$672,771$11,029iApproximate average salary by contribution assumption: employee only about $275,726 at 4% or $183,817 at 6%; with 50% employer match about $183,817 at 4% or $122,545 at 6%; with 100% employer match about $137,863 at 4% or $91,909 at 6%.
West Plains Engineering Inc. 401(K) Plan-61$5,951,247$672,771$11,029iApproximate average salary by contribution assumption: employee only about $275,726 at 4% or $183,817 at 6%; with 50% employer match about $183,817 at 4% or $122,545 at 6%; with 100% employer match about $137,863 at 4% or $91,909 at 6%.
2015159$5,009,398$513,858$8,709iApproximate average salary by contribution assumption: employee only about $217,736 at 4% or $145,158 at 6%; with 50% employer match about $145,158 at 4% or $96,772 at 6%; with 100% employer match about $108,868 at 4% or $72,579 at 6%.
West Plains Engineering Inc. 401(K) Plan-59$5,009,398$513,858$8,709iApproximate average salary by contribution assumption: employee only about $217,736 at 4% or $145,158 at 6%; with 50% employer match about $145,158 at 4% or $96,772 at 6%; with 100% employer match about $108,868 at 4% or $72,579 at 6%.
2014158$4,563,570$947,016$16,328iApproximate average salary by contribution assumption: employee only about $408,197 at 4% or $272,131 at 6%; with 50% employer match about $272,131 at 4% or $181,421 at 6%; with 100% employer match about $204,098 at 4% or $136,066 at 6%.
West Plains Engineering Inc. 401(K) Plan-58$4,563,570$947,016$16,328iApproximate average salary by contribution assumption: employee only about $408,197 at 4% or $272,131 at 6%; with 50% employer match about $272,131 at 4% or $181,421 at 6%; with 100% employer match about $204,098 at 4% or $136,066 at 6%.
2013156$4,157,574$343,581$6,135iApproximate average salary by contribution assumption: employee only about $153,384 at 4% or $102,256 at 6%; with 50% employer match about $102,256 at 4% or $68,171 at 6%; with 100% employer match about $76,692 at 4% or $51,128 at 6%.
West Plains Engineering Inc. 401(K) Plan-56$4,157,574$343,581$6,135iApproximate average salary by contribution assumption: employee only about $153,384 at 4% or $102,256 at 6%; with 50% employer match about $102,256 at 4% or $68,171 at 6%; with 100% employer match about $76,692 at 4% or $51,128 at 6%.
2012151$3,214,316$310,919$6,096iApproximate average salary by contribution assumption: employee only about $152,411 at 4% or $101,608 at 6%; with 50% employer match about $101,608 at 4% or $67,738 at 6%; with 100% employer match about $76,206 at 4% or $50,804 at 6%.
West Plains Engineering Inc. 401(K) Plan-51$3,214,316$310,919$6,096iApproximate average salary by contribution assumption: employee only about $152,411 at 4% or $101,608 at 6%; with 50% employer match about $101,608 at 4% or $67,738 at 6%; with 100% employer match about $76,206 at 4% or $50,804 at 6%.
2011152$2,819,312$359,555$6,915iApproximate average salary by contribution assumption: employee only about $172,863 at 4% or $115,242 at 6%; with 50% employer match about $115,242 at 4% or $76,828 at 6%; with 100% employer match about $86,431 at 4% or $57,621 at 6%.
West Plains Engineering Inc. 401(K) Plan-52$2,819,312$359,555$6,915iApproximate average salary by contribution assumption: employee only about $172,863 at 4% or $115,242 at 6%; with 50% employer match about $115,242 at 4% or $76,828 at 6%; with 100% employer match about $86,431 at 4% or $57,621 at 6%.
2010154$2,790,575$354,610$6,567iApproximate average salary by contribution assumption: employee only about $164,171 at 4% or $109,448 at 6%; with 50% employer match about $109,448 at 4% or $72,965 at 6%; with 100% employer match about $82,086 at 4% or $54,724 at 6%.
West Plains Engineering Inc. 401(K) Plan-54$2,790,575$354,610$6,567iApproximate average salary by contribution assumption: employee only about $164,171 at 4% or $109,448 at 6%; with 50% employer match about $109,448 at 4% or $72,965 at 6%; with 100% employer match about $82,086 at 4% or $54,724 at 6%.
200910$0$0-
West Plains Engineering Inc. 401(K) Plan-----
2008144$1,228,384$345,155$7,844iApproximate average salary by contribution assumption: employee only about $196,111 at 4% or $130,741 at 6%; with 50% employer match about $130,741 at 4% or $87,160 at 6%; with 100% employer match about $98,055 at 4% or $65,370 at 6%.
West Plains Engineering Inc. 401(K) Plan-44$1,228,384$345,155$7,844iApproximate average salary by contribution assumption: employee only about $196,111 at 4% or $130,741 at 6%; with 50% employer match about $130,741 at 4% or $87,160 at 6%; with 100% employer match about $98,055 at 4% or $65,370 at 6%.
2007146$1,588,016$209,798$4,561iApproximate average salary by contribution assumption: employee only about $114,021 at 4% or $76,014 at 6%; with 50% employer match about $76,014 at 4% or $50,676 at 6%; with 100% employer match about $57,010 at 4% or $38,007 at 6%.
West Plains Engineering Inc. 401(K) Plan-46$1,588,016$209,798$4,561iApproximate average salary by contribution assumption: employee only about $114,021 at 4% or $76,014 at 6%; with 50% employer match about $76,014 at 4% or $50,676 at 6%; with 100% employer match about $57,010 at 4% or $38,007 at 6%.
2006138$1,334,184$190,921$5,024iApproximate average salary by contribution assumption: employee only about $125,606 at 4% or $83,737 at 6%; with 50% employer match about $83,737 at 4% or $55,825 at 6%; with 100% employer match about $62,803 at 4% or $41,869 at 6%.
West Plains Engineering Inc. 401(K) Plan-38$1,334,184$190,921$5,024iApproximate average salary by contribution assumption: employee only about $125,606 at 4% or $83,737 at 6%; with 50% employer match about $83,737 at 4% or $55,825 at 6%; with 100% employer match about $62,803 at 4% or $41,869 at 6%.
2005140$1,219,855$168,850$4,221iApproximate average salary by contribution assumption: employee only about $105,531 at 4% or $70,354 at 6%; with 50% employer match about $70,354 at 4% or $46,903 at 6%; with 100% employer match about $52,766 at 4% or $35,177 at 6%.
West Plains Engineering Inc. 401(K) Plan-40$1,219,855$168,850$4,221iApproximate average salary by contribution assumption: employee only about $105,531 at 4% or $70,354 at 6%; with 50% employer match about $70,354 at 4% or $46,903 at 6%; with 100% employer match about $52,766 at 4% or $35,177 at 6%.
2004138$1,026,272$150,465$3,960iApproximate average salary by contribution assumption: employee only about $98,990 at 4% or $65,993 at 6%; with 50% employer match about $65,993 at 4% or $43,996 at 6%; with 100% employer match about $49,495 at 4% or $32,997 at 6%.
West Plains Engineering Inc. 401(K) Plan-38$1,026,272$150,465$3,960iApproximate average salary by contribution assumption: employee only about $98,990 at 4% or $65,993 at 6%; with 50% employer match about $65,993 at 4% or $43,996 at 6%; with 100% employer match about $49,495 at 4% or $32,997 at 6%.
2003138$818,736$152,372$4,010iApproximate average salary by contribution assumption: employee only about $100,245 at 4% or $66,830 at 6%; with 50% employer match about $66,830 at 4% or $44,553 at 6%; with 100% employer match about $50,122 at 4% or $33,415 at 6%.
West Plains Engineering Inc. 401(K) Plan-38$818,736$152,372$4,010iApproximate average salary by contribution assumption: employee only about $100,245 at 4% or $66,830 at 6%; with 50% employer match about $66,830 at 4% or $44,553 at 6%; with 100% employer match about $50,122 at 4% or $33,415 at 6%.
2002135$547,355$160,651$4,590iApproximate average salary by contribution assumption: employee only about $114,751 at 4% or $76,500 at 6%; with 50% employer match about $76,500 at 4% or $51,000 at 6%; with 100% employer match about $57,375 at 4% or $38,250 at 6%.
West Plains Engineering Inc. 401(K) Plan-35$547,355$160,651$4,590iApproximate average salary by contribution assumption: employee only about $114,751 at 4% or $76,500 at 6%; with 50% employer match about $76,500 at 4% or $51,000 at 6%; with 100% employer match about $57,375 at 4% or $38,250 at 6%.
2001129$0$0-
West Plains Engineering Inc. 401(K) Plan-29---
2000125$732,201$131,768$5,271iApproximate average salary by contribution assumption: employee only about $131,768 at 4% or $87,845 at 6%; with 50% employer match about $87,845 at 4% or $58,564 at 6%; with 100% employer match about $65,884 at 4% or $43,923 at 6%.
West Plains Engineering Inc. 401(K) Plan-25$732,201$131,768$5,271iApproximate average salary by contribution assumption: employee only about $131,768 at 4% or $87,845 at 6%; with 50% employer match about $87,845 at 4% or $58,564 at 6%; with 100% employer match about $65,884 at 4% or $43,923 at 6%.
1999126$706,371$130,762$5,029iApproximate average salary by contribution assumption: employee only about $125,733 at 4% or $83,822 at 6%; with 50% employer match about $83,822 at 4% or $55,881 at 6%; with 100% employer match about $62,866 at 4% or $41,911 at 6%.
West Plains Engineering Inc. 401(K) Plan-26$706,371$130,762$5,029iApproximate average salary by contribution assumption: employee only about $125,733 at 4% or $83,822 at 6%; with 50% employer match about $83,822 at 4% or $55,881 at 6%; with 100% employer match about $62,866 at 4% or $41,911 at 6%.