Humboldt Waste Management Authority

24 public works projects registered with the California Department of Industrial Relations, 2015–2026 · Eureka, Humboldt County. Reported contract value: $454,441.

Projects by year

YearProjectsReported contract value
20264$208,021
20253$246,420
20211—
20201—
20193—
20182—
20175—
20163—
20152—

DIR has published contract amounts since July 2024; earlier years count projects only.

Types of work

  • Other · 12
  • Buildings & facilities · 3
  • HVAC & mechanical · 3
  • Roofing · 2
  • Paving & streets · 2
  • Storm drain & flood control · 1
  • Electrical, low voltage & AV · 1

Inferred by Atriam from each project's name and description, not reported by the agency.

Contractors it awards most

Prime contractorProjectsReported contract value
SIX RIVERS MECHANICAL INC4$57,491
USA SCALES INC1$219,968
G.T. MICHELLI CO., LLC1$166,732
ALVES INC1$10,250

Latest projects

DateProjectPrime contractorContract amount
Jun 16, 2026HVAC System Main OfficeHVAC & mechanicalSIX RIVERS MECHANICAL INC$16,906
Jun 16, 2026HVAC System ED OfficeHVAC & mechanicalSIX RIVERS MECHANICAL INC$14,133
May 11, 2026Organics Facility ScalesBuildings & facilitiesG.T. MICHELLI CO., LLC$166,732
Apr 23, 2026Paving Trailer AreaPaving & streetsALVES INC$10,250
Dec 18, 2025HVAC System per Quote # 2685RoofingSIX RIVERS MECHANICAL INC$7,793
Jan 21, 2025HVAC System ReplacementHVAC & mechanicalSIX RIVERS MECHANICAL INC$18,659
Jan 14, 2025Pit Scale ReplacementOtherUSA SCALES INC$219,968
Apr 23, 2021OPP - Grate ReplacementOther——
May 18, 2020Baler Repair - Plates, Strips, BladesOther——
Aug 16, 2019Baler Housing ImprovementsRoofing——
Jul 31, 2019Compressor Relocation ProjectOther——
Jul 15, 20192019 Stormwater ImprovementsStorm drain & flood control——
Dec 6, 2018Hazardous Waste Building Floor OverlayPaving & streets——
Nov 11, 2018Flare Control Board UpgradeOther——
Nov 16, 2017Baler RepairOther——
Sep 19, 2017Business Office Door ReplacementBuildings & facilities——
Jul 19, 2017Door Replacement - Main OfficeBuildings & facilities——
Jun 19, 2017Replacement of Electric MotorsElectrical, low voltage & AV——
Apr 17, 2017Baler RepairOther——
Oct 3, 2016Baler RepairOther——
Apr 15, 2016Baler RepairOther——
Feb 14, 2016Fill and Grade LotOther——
Nov 30, 2015Baler Repairs - Strips/Bars/FlightsOther——
Sep 28, 2015Wear Strip Replace and RepairOther——

Source: California Department of Industrial Relations public works project registrations (PWC-100), updated daily by Atriam.