10 US Ecology South Back | Next 12 Metropolitan Alloys Corp
10 US Ecology South Back | Next 12 Metropolitan Alloys Corp
At a Glance
Facility Name: Kronos Concrete, LLC (ready-mix concrete plant)
Primary Site Parcels/Addresses: 3405 Gaylord St.; 3401–3405 E. McNichols; adjacent Crown-owned parcels in Cadillac Heights
Current Operator: Kronos Concrete, LLC (affiliated with the Hercules/Titan/Zeus concrete network)
Land Control/Ownership Context: Crown Enterprises and related entities hold multiple adjacent parcels in Cadillac Heights
Zoning: M4—Intensive Industrial (permitted for concrete mixing)
Approx. Site Area: ~29 acres (multi-parcel footprint)
Regulatory Oversight: City of Detroit BSEED (zoning/building/environmental code); state/federal trucking and nuisance regulations as applicable
Coverage Period: 2019–present
Verification: BridgeDetroit, Bridge Michigan, Planet Detroit (May 2024), Planet Detroit (tag hub), FMCSA carrier record – Kronos Concrete, LLC, Hercules/Kronos site description
Facility Overview
Kronos Concrete is a ready-mix concrete operation serving construction and infrastructure projects on Detroit’s east side. The plant’s multi-parcel footprint sits in Cadillac Heights, bounded generally by E. McNichols (6 Mile), Jerome, Moran, and Joseph Campau. Company and public records identify core addresses at 3405 Gaylord and 3401–3405 E. McNichols, with the plant operating within a larger cluster of Crown Enterprises parcels. The operator is Kronos Concrete, LLC, which is part of a regional family of concrete brands (Hercules, Titan, Zeus, Pegasus) that share similar plant designs and logistics models. Hercules site description confirms the Cadillac Heights siting, the M4 zoning, and an approximate 29-acre facility area, while FMCSA records list Kronos’s physical address as 3405 Gaylord St., Detroit 48212. Hercules page; FMCSA
Operations at a ready-mix plant typically include aggregate and cement delivery, on-site storage (in covered silos and bins), batch mixing with water and admixtures, and outbound loading into mixer trucks. Traffic, outdoor materials handling, and aggregate transfer are common sources of dust and noise at such plants; Detroit’s M4 zoning allows this use, subject to applicable building, environmental, and nuisance controls. Reporting by BridgeDetroit notes the site’s M4 zoning and identifies the operation as a high-throughput concrete plant serving nearby projects. BridgeDetroit
Compliance & Enforcement History (2019–Present)
Public reporting and city statements indicate that site construction and initial operation activities occurred before all approvals were finalized. In June 2022, the City of Detroit’s Buildings, Safety Engineering & Environmental Department (BSEED) issued a stop-work order to Crown (the landholder) related to the concrete facility, directing work to cease and the site to be restored pending proper permits. Subsequent city actions led to issuance of permits, with BSEED later stating that once the permit was issued, the operation was no longer in violation. These details are reported by Bridge Michigan and Planet Detroit with citations to city communications. Bridge Michigan; Planet Detroit
Through 2024–2025, the facility remained a subject of heightened public scrutiny, with ongoing media coverage of resident complaints regarding dust, noise, and truck traffic and discussions about whether city approvals and oversight sufficiently address nuisance impacts in an industrial-residential interface area. News reports in 2025 document protests and calls for shutdown or rezoning, as well as statements from city officials and company affiliates emphasizing that concrete mixing is a permitted use in M4 and that the plant is operating under issued permits. See coverage by BridgeDetroit (protests/rezone efforts and councilmember responses), Michigan Public, ClickOnDetroit, and Planet Detroit. BridgeDetroit – protest; BridgeDetroit – councilmember follow-up; Michigan Public; ClickOnDetroit; Planet Detroit – protests tag
Where available, company/affiliate materials provide additional site context. The operator network’s community pageconfirms the Cadillac Heights location and M4 zoning, and describes the facility size and investment; this is corroborative context for the physical footprint and land-use status but is not a substitute for city permits. For formal record checks on current permits or citations, the City’s BSEED permit portal and public meeting records (zoning/rezoning) are the authoritative sources referenced in the journalism cited above. Hercules page; BridgeDetroit
Community Impact
Cadillac Heights is an industrial-residential edge where heavy uses and homes are in close proximity. Over 2024–2025, local media documented frequent community complaints of dust, noise, and truck traffic associated with the concrete operation, particularly during warmer months and peak construction periods. Coverage describes visible dust events, early-morning activity, and concerns about vibrations and safety near residential blocks. These reports spurred public demonstrations and requests for rezoning or closure from residents and community groups; they also prompted statements from city officials about enforcement tools and the limits of current zoning. This section remains general by design and avoids naming individuals. See BridgeDetroit, Planet Detroit, and broadcast coverage. BridgeDetroit – protest; Planet Detroit – April 2025; ClickOnDetroit – June & Oct 2025
Status & Sources
Status (October 2025): Kronos Concrete is operating at the Cadillac Heights site under issued city permits; the June 2022 stop-work was followed by permitting actions, after which BSEED indicated the facility was no longer in violationfor that matter. Public discussion continues regarding rezoning, site operations, and nuisance enforcement. For the most current permit or violation entries, consult the City’s BSEED records and public meeting agendas referenced in the coverage linked here. Planet Detroit – permit timeline; Bridge Michigan – stop-work & approvals; BridgeDetroit – protests/rezoning
10 US Ecology South Back | Next 12 Metropolitan Alloys Corp