DIEMER CONSTRUCTION COMPANY LLC
DBA DIEMER CONSTRUCTION CO INC
52 power units
25 drivers
mileage unreliable
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Not enough record
Graded once the record supports it
30 yrs history · 8 roadside inspections in 24 months
Checked Nov 8, 2026
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- Expected crashes over the next 12 months, against similar fleets
- What drives the grade: crash history and roadside record
- Worth a closer look: the flags to ask about, with the questions
- How it compares with similar fleets, per power unit and per mile
- Cargo risk, and news reports linked to its crashes
- How the grade is calculated, and its history week by week
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Fleet, registration and cargo
Fleet and equipment
- Power units
- 52 all leased
- Drivers · CDL
- 25 · 25
- Annual miles
- 451k unreliable
| Type | Own | Term | Trip | Total |
|---|---|---|---|---|
| Trucks | 0 | 13 | 0 | 13 |
| Tractors | 0 | 39 | 0 | 39 |
| Trailers | 0 | 42 | 0 | 42 |
Registration
- Organization
- CORPORATION
- Operation
- Interstate
- Authority type
- Authorized For-Hire / Private Property
- Registered
- May 16, 1996 (30 yrs)
- MCS-150 update
- Jan 27, 2026 (Address Change)
- Officer
- BOB DIEMER
- Phone
- (580) 628-3052
- diemer@diemerconstruction.com
- Address
- 14211 S 13Th, Tonkawa OK 74653
Cargo
Cargo risk score
FRED’s estimate from the commodities it hauls
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Motor VehiclesMachinery/Large ObjectsLiquids/GasesOilfield EquipmentBuilding MaterialsOther: DELETERIOUS SUBSTANCESGrain/Feed/HayDry BulkFarm SuppliesConstruction
FMCSA status today
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Roadside and crash record
FMCSA record, Jun 2025 – Jun 2026Crashes
1
0 fatal (0 deaths) · 1 injury · 1 person hurt in all
Inspections
8
0% clean (no violations)
Vehicle out-of-service
66.7%
4 of 6 vehicle inspections
Driver out-of-service
12.5%
1 of 8 driver inspections
Violations
14
5 out-of-service violations
Inspections per quarter
With an out-of-service order
How it compares with similar fleets
Crashes, inspections and violations per power unit and per mile, against fleets like this one
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Violations
14 on the FMCSA record, Jun 2025 – Jun 2026-
Vehicle maintenance No alert10 · 4 out-of-serviceBrakes 4 · Lights 4 · Wheels & hubs 2
-
Unsafe driving No alert2 · 0 out-of-serviceSeat belt 1 · Speeding 1
-
Hours of service No alert1 · 0 out-of-serviceLogbook / ELD paperwork 1
-
Driver fitness No alert1 · 1 out-of-serviceNo valid CDL 1
-
Drugs & alcohol No alert0
Out-of-service share of each category. “No alert” = under FMCSA's BASIC intervention threshold.
Violations by quarter
Tap a category to show or hide itCrashes
FMCSA record, Jun 2025 – Jun 2026 · crash reports through Sep 15, 2026
1 crash
1 injury
-
Oct32025Oct 3, 2025 · OklahomaInjury · 1 person hurtSnow road, daylight, two-way trafficway divided unprotected median. Citation issued.
Insurance filed with FMCSA
FMCSA record through May 14, 2026 · no change recorded by FMCSA sinceToday · live FMCSA check
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On FMCSA's filing record
- Last on FMCSA's record (May 14, 2026)
- $750,000 · BITCO GENERAL INSURANCE CORPORATIONon record since Mar 28, 2019 · FMCSA minimum $750,000 · no gap on FMCSA's record since Mar 2003
- Cargo filing
- not required by FMCSA (household-goods motor carriers only); the cargo policy is not on FMCSA's record
36 months to May 14, 2026
- One liability insurer throughout
- No gap in filed liability coverage while liability was required
Authority events and every filing
FMCSA’s full filing record back to the 1990s, and who else this insurer covers
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FMCSA filings only, not a policy audit. Not part of the FRED grade. Wrong or out of date?
Where it operates
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Map: inspections and crashes from FMCSA's weekly files over 24 months.
Inspections by state
- Oklahoma (HQ) 7
- Texas 1
How this grade is calculated, and its history
The model behind the grade: factors, credibility, peer group and the score week by week
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FMCSA records
BASIC measures and every inspection, violation and crash, sortable and filterable.
FMCSA records
BASIC measures and every inspection, violation and crash, sortable and filterable.
| BASIC | Inspections with violations | Measure | Alert |
|---|---|---|---|
| Vehicle maintenance | 6 | 10.11 | No alert |
| Unsafe driving | 2 | 0.42 | No alert |
| Hours of service | 1 | 1.15 | No alert |
| Driver fitness | 1 | 0.30 | No alert |
| Drugs & alcohol | 0 | 0.00 | No alert |
8 driver inspections · 6 vehicle inspections
These records come from FMCSA's Safety Measurement System, Jun 2025 – Jun 2026; the grade counts crashes Oct 1, 2023 – Sep 30, 2026 and inspections Nov 1, 2024 – Oct 31, 2026 from FMCSA's weekly files, so counts can differ.
FMCSA's SMS profile →