Mountain Constructors INC
Phone (970) 785-6161Platteville, CO
Find this carrier by: Mountain Constructors · USDOT 666804 · 970-785-6161 · 9707856161 · Platteville, CO
Carrier information from FMCSA records. See dates and record coverage. How to verify an FMCSA record.
- USDOT
- USDOT666804
- MC
- None
- Registered
- 1996 · 30 yrs
- Location
- Platteville, CO
- MCS-150 filed
- Oct 19, 2026
USDOT registration
Active
Registration status; not operating authority
Authority record
No filing shown
Check current status in Motus
Insurance record
No filing shown
Does not establish uninsured status
Safety rating
Not rated
No safety rating available; not a safety verdict
Overview
The short version and the key numbers.
Mountain Constructors INC is an active motor carrier based in Platteville, CO, registered with FMCSA under USDOT 666804. Phone: (970) 785-6161. It reports 9 power units and 23 drivers on its MCS-150 (Oct 19, 2026). In the last 24 months it had 1 roadside inspection, a 0% vehicle out-of-service rate (national average 22.9%) and no reportable crashes in the available records.
USDOT 666804 was first registered with FMCSA on Nov 15, 1996 (30 years ago), and its most recent MCS-150 filing is dated Oct 19, 2026. Its vehicles were inspected 1 time on record, most recently on Jun 10, 2026, most often in CO.
Equipment on record
VIN = decoded from the carrier's vehicles · Inspection = seen at roadside inspections · MCS-150 = filed by the carrier
Dates behind this profile
- MCS-150 filing
- Oct 19, 2026
- Registration record changed
- Oct 24, 2026
- Latest inspection recorded
- Jun 10, 2026
- Latest crash recorded
- Not available
- Latest vehicle observation
- Jun 10, 2026
Each date applies to its own record. A registration change does not mean every filing changed. An inspection or vehicle observation describes that date, not continuous operation today.
USDOT registration and operating authority are different records. A crash entry records involvement, not a finding of fault. Missing information is not a clean safety record.
Not on file for USDOT 666804: connected companies.
Company details
Filed identity, officers, contacts and registration details.
Company identity & officers
- Company officer
- Joe Kuntz
- Legal name
- Mountain Constructors INC
- Classification
- Private (Property) · Authorized For-Hire
- Registered as
- Motor Carrier
Registration & filings
- USDOT number
- 666804
- Docket numbers
- None on file
- Registered
- Nov 15, 1996 (30 yrs)
- D&B (DUNS)
- 20101374
- Last MCS-150
- Oct 19, 2026
- Usual MCS-150 schedule
- April 2028 (see temporary relief below)
- Operation
- Intrastate Only (Non-Hazmat)
- Hazmat, as filed
- Yes
- Passenger carrier, as filed
- Not available
FMCSA currently provides additional time for biennial updates due on or after June 1, 2026 and suspends USDOT inactivation for those missed updates. The usual schedule above does not establish a violation. Read our update guide and the cited FMCSA notice (guidance checked October 20, 2026).
Carriers in Platteville, CO
- USDOT registrations in Platteville
- 239
- Currently active
- 154 (64%)
- One-truck operations
- 140 (59%)
- With for-hire authority
- 74 (31%)
- Registered in the last 12 months
- 8
From FMCSA census records as of Nov 15, 2026. This carrier reports 9 power units against a local average of 3.4.
Find this carrier by
- USDOT
- 666804
- D&B (DUNS)
- 20101374
- Phone
- (970) 785-6161970-785-61619707856161
- Fax
- (970) 785-2515970-785-25159707852515
- ap@mtnconstructors.com
- Officers
- Joe Kuntz
- Legal name
- Mountain Constructors INC
- Address
- 622 Main Street, Platteville, CO 80651
- Mailing address
- 622 Main St, Platteville, CO 80651
- VINs inspected under this USDOT
- 1M2GR3TC5PM001963
- Plates inspected under this USDOT
- EIJW17 CO
Available registration and contact identifiers. Vehicle identifiers below are a recent sample; open a VIN or plate to see its dated records.
Legitimacy check
A quick screen from public records. A flag is a reason to verify, not proof of wrongdoing.
- Pass: Not on the U.S. sanctions list
Name does not match the Treasury OFAC list.
- Pass: USDOT registration is active
FMCSA lists USDOT 666804 as active.
- No data: No authority filing shown
This is not a finding of unauthorized operation. Requirements depend on the operation; verify the current registration in Motus.
- Pass: No federal out-of-service orders
None on record for this USDOT.
- Pass: No prior revocation linked
No earlier revoked USDOT is linked to this one.
Authority & insurance
Stored filing details and guidance for checking current status.
FMCSA filing records
Authority, insurance and notice records can include earlier filings. Read each recorded status and effective date; a filing alone does not confirm current authority or insurance coverage. Missing records do not establish unauthorized operation or missing insurance.
Amounts are shown exactly as filed, without scaling or currency conversion. Confirm coverage and amounts with the insurer.
Operating authority
0 available records · FMCSA release date: Nov 14, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Insurance filings
0 available records · FMCSA release date: Nov 15, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Suspension and revocation notices
0 available records · FMCSA release date: Nov 15, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Insurance history
0 available records · FMCSA release date: Nov 15, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Earlier FMCSA filing records
These records may omit later filings. Their presence does not establish current authority or coverage. Missing records do not establish that a carrier is unauthorized or uninsured. Check current records in FMCSA Motus, then confirm coverage directly with the insurer. Follow the verification guide and its FMCSA sources. Guidance checked October 20, 2026.
Safety
FMCSA's rating and how this carrier compares with the national average.
Safety rating
- Rating
- Not rated
- Driver inspections (24 mo)
- 1 (0 out of service)
- Vehicle inspections (24 mo)
- 1 (0 out of service)
Out-of-service rates (24 months)
FMCSA BASICs
| Category | Percentile | Measure | Inspections with violation | Acute / critical | Alert |
|---|---|---|---|---|---|
| Unsafe Driving | Not public | 2.33 | 1 | No | Not available |
| Hours-of-Service | Not public | 0 | 0 | No | Not available |
| Driver Fitness | Not public | 0 | 0 | No | Not available |
| Controlled Substances | Not public | 0 | 0 | No | Not available |
| Vehicle Maintenance | Not public | 0 | 0 | No | Not available |
Percentile: 0 is best, 100 is worst. FMCSA flags an alert above its threshold (65–80% depending on category). Some property-carrier percentiles are not public.
Most-cited violations, in plain English
| Code | Times | Out of service |
|---|---|---|
| 390.21TB2-DOT | 1 | 0 |
| 392.16-D | 1 | 0 |
Inspections & crashes
Roadside inspections and reportable crashes in the last 24 months.
Inspection, violation and out-of-service counts: FMCSA 24-month inspection record, as of Nov 15, 2026.
Most recent
- Last inspection
- Jun 10, 2026
Latest inspections
| Date | Inspection ID | State | Location | Level | Driver viol. / OOS | Vehicle viol. / OOS | Violations |
|---|---|---|---|---|---|---|---|
| Jun 10, 2026 | 88125542 | CO | Fort Collins Co | Walk-around (Level 2) | 1 / 0 | 1 / 0 | 2 violations
|
Latest crashes
A roadside out-of-service finding applies to the inspected driver or vehicle; it is different from a federal order against the carrier. Crash involvement does not determine fault or preventability. Counts cover the stated reporting period, not the carrier’s entire history.
Where its vehicles were inspected
| State | Inspections | With OOS |
|---|---|---|
| CO · Colorado | 1 | 0 |
The states where FMCSA recorded roadside inspections for this USDOT. A rough picture of where the fleet runs, not a list of lanes.
Fleet & drivers
Filed fleet and driver counts, cargo types, and vehicles observed at inspections.
Vehicles filed on the MCS-150
| Vehicle | Owned | Term leased | Trip leased |
|---|---|---|---|
| Trucks | 6 | 0 | 0 |
| Tractors | 3 | 0 | 0 |
| Trailers | 8 | 0 | 0 |
Drivers
- Total drivers
- 23
- CDL drivers
- 3
- Interstate, over 100 mi
- 0
- Interstate, within 100 mi
- 0
- Intrastate, over 100 mi
- 0
- Intrastate, within 100 mi
- 23
- Leased drivers / month
- 0
Operations
- Power units
- 9
- Trucks
- 9
- Buses
- 0
- Annual miles
- 2,500 (2025)
- Seen at inspections
- 1 truck
Vehicles inspected under this USDOT
| VIN | Year | Make & model | Type | Plate | Inspections | Last seen | Violations / OOS |
|---|---|---|---|---|---|---|---|
| 1M2GR3TC5PM001963 | 2023 | Mack Granite | Straight Truck | EIJW17 CO | 1 | Jun 10, 2026 | 1 / 0 |
Vehicles recorded at roadside inspections under this USDOT (the carrier operated them; this is not a record of ownership). Open a VIN or plate for its dated carrier associations and available history. Plates can change or be reassigned. Vehicle details reflect filed records and available VIN decoding; these observations are not a complete fleet or ownership history.
Equipment evidence
- Straight TruckInspection 1 straight truck recorded at roadside inspections
Cargo carried, as filed
Changes & history
Dated changes, earlier values and filing history for this registration.
Timeline of this registration
- Record updated: avg drivers leased per month set to 0.
- MCS-150 filing on record.
- First vehicle recorded at a roadside inspection under this USDOT.
- Most recent vehicle recorded at a roadside inspection.
- Earliest roadside inspection on file.
- Most recent roadside inspection on file.
- MCS-150 filing on record.
- Registered with FMCSA as USDOT 666804.
Dates come from FMCSA filings and inspection records as filed; a filing date is when FMCSA recorded it, not when an event happened on the road.
Recent changes to the record
| Date | Field | After |
|---|---|---|
| Oct 22, 2026 | Avg drivers leased per month | 0 |
MCS-150 filings on record
- MCS-150 filed
- MCS-150 filed
Registration
- First registered with FMCSA
- Nov 15, 1996
- Last MCS-150 update
- Oct 19, 2026
Questions & answers
Quick answers, written from this carrier's FMCSA record.
Is Mountain Constructors INC an active carrier?
The available FMCSA record lists USDOT 666804 as active. Registration is separate from operating authority and insurance coverage.
What is Mountain Constructors INC's USDOT number?
USDOT 666804. No MC, MX or FF docket number is on file.
How do I contact Mountain Constructors INC?
As filed with FMCSA: phone (970) 785-6161; fax (970) 785-2515; email ap@mtnconstructors.com; address 622 Main Street, Platteville, CO 80651; mailing address 622 Main St, Platteville, CO 80651.
What is Mountain Constructors INC's safety rating?
No FMCSA safety rating is available here. Not rated does not mean safe or unsafe.
How many trucks and drivers does Mountain Constructors INC have?
Power units: 9; drivers: 23, as filed on its MCS-150 (Oct 19, 2026).
What does Mountain Constructors INC haul?
Its FMCSA filing lists these cargo types: motor vehicles, logs/poles/beams, building materials, machinery (large), oilfield equipment, construction.
What equipment does Mountain Constructors INC operate?
On government records: Straight Truck (1 straight truck recorded at roadside inspections).
How many inspections and crashes has Mountain Constructors INC had?
Inspections: 1; crashes recorded: 0, in the available 24-month records.
What is the usual MCS-150 update schedule for Mountain Constructors INC?
The usual USDOT-digit schedule gives April 2028. The latest filing stored here is Oct 19, 2026. FMCSA currently gives extra time for biennial updates due on or after June 1, 2026 and has suspended inactivation for those missed updates. This calculated date is not a finding of noncompliance. Check the linked FMCSA notice for changes.
Reviews
From brokers, shippers and drivers who worked with this carrier.