Updated Oct 22, 2026

Intermountain Slurry Seal Inc

As of Oct 22, 2026, Intermountain Slurry Seal Inc in Salt Lake City, Utah reports 170 power units and 125 drivers on its MCS-150, FMCSA safety rating: satisfactory.

1000 N Warm Springs Rd, Salt Lake City, Utah 84116 (801) 526-6093

Verified Oct 22, 2026 against FMCSA Company Census File (data.transportation.gov)

Intermountain Slurry Seal Inc (USDOT 321564, MC-620991) is an active motor carrier based in Salt Lake City, Utah that FMCSA's census classifies as for-hire and that declares hazardous materials on its MCS-150. Operation: interstate. Operating authority: active for-hire authority (MC). Fleet: 170 power units and 125 drivers (55 with CDLs). Power units count straight trucks as well as tractors, so they can exceed the tractor count. It reported 1,792,861 miles for 2025 on its MCS-150. Cargo classes declared: liquids / gases, building materials, construction, machinery, large objects, other cargo (other: Unspecified). It is also classified as a private carrier of its own goods. FMCSA safety rating: satisfactory, from a compliance review on November 16, 2001, 25 years ago; it reflects that review, not current performance. In the last 24 months it had 14 roadside inspections, 3 of them (21.4%) with an out-of-service order; 1 hazmat inspection; 1 reportable crash (0 deaths, 1 injury); a crash on record does not by itself mean the carrier caused it. Registration (MCS-150) last updated January 21, 2026.

Key facts

Fleet size	100–499 power units Power units, banded. source
FMCSA safety rating	Satisfactory Satisfactory, Conditional or Unsatisfactory after an FMCSA compliance review; most carriers have never had one and are not rated. source
Rating age	Rating over 10 years old How old the FMCSA safety rating is. A rating reflects one compliance review on that date, not current performance; old ratings say little about the carrier today. source
Registration update overdue	No The MCS-150 was last updated more than two years ago, past FMCSA's two-year update requirement; fleet, driver and cargo figures may be out of date. source
Operation	Interstate Interstate, intrastate hazmat or intrastate non-hazmat, as declared on the MCS-150. source
Cargo classes (MCS-150)	Liquids / gases, Building materials, Construction, Machinery, large objects, Other cargo Cargo the carrier declared it hauls on its latest MCS-150 (FMCSA's fixed cargo list). source
Driver count	100–499 drivers Total drivers, banded. source
Last MCS-150 update	Jan 21, 2026 When the carrier last updated its registration (required at least every two years). source
Out-of-service share (24 months)	Over 20% out of service The share of the carrier's roadside inspections in the last 24 months that ended in an out-of-service order. A carrier with few inspections can swing on one result. source
Roadside inspections (24 months)	14 Roadside inspections of the carrier's drivers and vehicles in FMCSA's Safety Measurement System file, which covers the last 24 months and is refreshed monthly. source
Reportable crashes (24 months)	1 Crashes involving the carrier's vehicles that met FMCSA's reporting threshold (a death, an injury treated away from the scene, or a vehicle towed away) in the last 24 months. A crash on record does not mean the carrier caused it. source
USDOT number	321564 source
MC docket	MC-620991 source
Operating authority	Active for-hire authority (MC) source
Other cargo (as described)	Unspecified source
Power units	170 source
Tractors (owned or leased)	20 source
Trailers (owned or leased)	100 source
Drivers	125 source
CDL drivers	55 source
Miles reported (MCS-150)	1,792,861 miles source
Mileage year	2025 source
Also hauls its own freight	Yes source
Safety rating date	Nov 16, 2001 source
USDOT registered since	Jul 21, 1988 source
Business type	Corporation source
Inspections with an out-of-service order (24 months)	3 source
Hazmat inspections (24 months)	1 source
Hazmat out-of-service orders (24 months)	0 source
Deaths in those crashes	0 source
Injuries in those crashes	1 source
Crashes with a hazmat release (24 months)	0 source

Source event history

Source dates and first observation are different.

Jan 21, 2026: Filed an MCS-150 update Official source
Nov 16, 2001: Rated by FMCSA Official source
Jul 21, 1988: Registered with FMCSA Official source

Dates on this record

Source updated	Oct 22, 2026 (FMCSA census rows last updated (portal metadata) (the whole dataset, not this record))
Collected	Oct 22, 2026, 10:22 PM ET (the last successful check of the source that included this record)
Effective	Filed an MCS-150 update: Jan 21, 2026; Rated by FMCSA: Nov 16, 2001; Registered with FMCSA: Jul 21, 1988 (when the source says each fact took effect)
Retired	Not retired: the source is still maintained (whether the dataset is still maintained)

In Salt Lake City, Utah

26 hazmat carriers in the dataset are in Salt Lake City, Utah; 7 have profiles on this site. Hazmat carriers in Salt Lake City, Utah

FMCSA safety rating (all 26 here): Conditional 1 (4%) · Satisfactory 14 (54%) · Not rated 11 (42%)

Rating age (all 26 here): Rating over 10 years old 11 (42%) · Not rated 11 (42%) · Rating 5–10 years old 3 (12%) · Rated within the last 5 years 1 (4%)

Fleet size (all 26 in this group): 25–99 power units (12) · 10–24 power units (7) · 100–499 power units (4) · 500+ power units (3)

Cargo classes (MCS-150) (all 26 in this group; a record can count under several values): General freight (19) · Building materials (17) · Construction (17) · Other cargo (14) · Liquids / gases (11) · Machinery, large objects (11) · 22 other values (102)

Similar hazmat carriers

Chosen by the values they share with this one, rarer values counting more; ties go to the same city, then the nearest ZIP code, then this site's order (largest fleets first (power units on the latest MCS-150)).

Big D Construction · Salt Lake City · FMCSA safety rating: Not rated
Kilgore Companies LLC · West Valley · FMCSA safety rating: Not rated
Staker & Parson Companies · Ogden · FMCSA safety rating: Satisfactory
Rango Inc · Mesa · FMCSA safety rating: Not rated

Browse related lists

USDOT number: The registration number every interstate (and many intrastate) commercial carrier holds.

MCS-150: The registration form carriers file with FMCSA and must update at least every two years; fleet, drivers, cargo and the hazmat flag on this site come from it, as the carrier declared them.

Safety rating: FMCSA's result after an on-site compliance review: Satisfactory, Conditional or Unsatisfactory. A rating is not refreshed unless FMCSA reviews the carrier again, so many are years old; each profile gives the review date. Most carriers have never been reviewed and are not rated; that is not a bad mark.

Power units: Trucks and tractors that pull or carry freight.

Reportable crash: A crash involving the carrier's vehicle with a death, an injury treated away from the scene or a vehicle towed away. FMCSA records it whoever was at fault.

Cargo classes: Self-declared on the MCS-150 from FMCSA's fixed list. Some carriers tick most of the list, so a long list means 'declared', not 'specialises in'; the hazmat flag does not say which hazardous materials.

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Something wrong or out of date? Suggest a correction. Source record ID 321564.