Safety Measurement System - Complete SMS Profile (U.S. DOT# 421524)

DAVIS BLOCK COMPANY INC

DBA: DAVIS BLOCK AND CONCRETE

U.S. DOT#: 421524

Number of Vehicles: 19
Number of Drivers: 17
Number of Inspections: 30

Safety Rating & OOS Rates AND Licensing and Insurance

As part of FMCSA’s IT modernization strategy, we are in the process of merging our data platforms to make it easier for you to find the information you need. During this transition, please refer to the links below for additional information about this carrier.

For licensing and insurance information, visit Motus: USDOT Registration System.
For safety rating and Out-of-Service (OOS) rates, visit SAFER.
If you are a motor carrier looking for your Inspection Selection System (ISS) value, log in to the FMCSA Portal.

BASIC Status (Public Property Carrier View)

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending May 15, 2026

On-Road Performance
0 Measure	Not Public	0 Measure	2.40 Measure	0 Measure	Not Public	0.25 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 0 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 19.3 Segment: Straight Carrier	Not Public	Driver Inspections: 30 with HOS Compliance Violations: 0 Safety Event Group: 21-100 relevant driver inspections	Vehicle Inspections: 14 with Vehicle Maint. Violations: 2 Safety Event Group: 11-20 relevant vehicle inspections	Driver Inspections: 30 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 30 with Driver Fitness Violations: 1 Safety Event Group: 21-100 relevant driver inspections
Investigation Results
No Acute/Critical Violations Discovered	N/A	No Acute/Critical Violations Discovered	No Acute/Critical Violations Discovered	No Acute/Critical Violations Discovered	Not Public	No Acute/Critical Violations Discovered

Select a BASIC icon above to get details, or view your Complete SMS Profile.

Violation Summary

Violations: 6


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

391.11B5-LNCDLNVL	License - Operate a CMV without a valid operators license, issued by one State or jurisdiction	1	1	8	Driver Fitness
393.11A1-LTSM	Lighting - Turn signal - Any missing on the rearmost vehicle.	1	1	6	Vehicle Maint.
393.9A-LRLI	Lighting - Tail lamp - Any inoperative	1	0	6	Vehicle Maint.
393.9A-LSLI	Lighting - Stop lamps - Any inoperative.	1	0	6	Vehicle Maint.
393.9A-LSLIWR	Lighting - Stop lamps - Both inoperative when required to be on	1	1	6	Vehicle Maint.
393.9A-LTSIR	Lighting - Turn signal -Any inoperative on a unit that is not the rearmost unit	1	0	6	Vehicle Maint.

Inspection History

Total Inspections: 30


Report			Vehicle			Measure
Inspection Date	Number	State	Plate Number	Plate State	Type	Severity Weight (SW)	Time Weight (TiW)

5/7/2026	AKVAW0000605	AK	DBM37	AK	STRAIGHT TRUCK		3
5/6/2026	AKVAW0000598	AK	DBM35	AK	STRAIGHT TRUCK		3
9/29/2025	AKMJC3000691	AK	KEA154	AK	STRAIGHT TRUCK		2
9/27/2025	AKVAW0000387	AK	DBM39	AK	STRAIGHT TRUCK		2
9/10/2025	AKVAW0000367	AK	HVYHAL	AK	TRUCK TRACTOR		2
Vehicle Maint. Violation: 393.9A-LSLI Lighting - Stop lamps - Any inoperative.						6
Vehicle Maint. Violation: 393.9A-LSLIWR Lighting - Stop lamps - Both inoperative when required to be on (OOS)						6 + 2 (OOS)
6/10/2025	AKMJC3000532	AK	JXM817	AK	STRAIGHT TRUCK		2
5/16/2025	AKSPC0000025	AK	DBM41	AK	STRAIGHT TRUCK		2
5/16/2025	AKMJC3000511	AK	DBM35	AK	STRAIGHT TRUCK		2
5/7/2025	AKMJC3000495	AK	DBM37	AK	STRAIGHT TRUCK		1
5/6/2025	AKMJC3000491	AK	DBM39	AK	STRAIGHT TRUCK		1
5/6/2025	AKMJC3000490	AK	DBM36	AK	STRAIGHT TRUCK		1
Driver Fitness Violation: 391.11B5-LNCDLNVL License - Operate a CMV without a valid operators license, issued by one State or jurisdiction (OOS)						8 + 2 (OOS)
4/16/2025	AKJEA2000242	AK	EJX220	AK	TRUCK TRACTOR		1
4/11/2025	AKMJC3000456	AK	FCY598	AK	TRUCK TRACTOR		1
4/1/2025	AKVAW0000147	AK	KEA154	AK	STRAIGHT TRUCK		1
3/12/2025	AKJEA2000196	AK	FCY598	AK	TRUCK TRACTOR		1
11/22/2024	AKJEA2000096	AK	HVYHAL	AK	TRUCK TRACTOR		1
Vehicle Maint. Violation: 393.9A-LTSIR Lighting - Turn signal -Any inoperative on a unit that is not the rearmost unit						6
Vehicle Maint. Violation: 393.11A1-LTSM Lighting - Turn signal - Any missing on the rearmost vehicle. (OOS)						6 + 2 (OOS)
Vehicle Maint. Violation: 393.9A-LRLI Lighting - Tail lamp - Any inoperative						6
10/14/2024	AKMJC3000238	AK	DBM37	AK	STRAIGHT TRUCK		1
9/12/2024	AKMJC3000152	AK	DBM37	AK	STRAIGHT TRUCK		1
8/16/2024	AKC132000108	AK	JCD698	AK	STRAIGHT TRUCK		1
8/8/2024	AKC133000124	AK	GZB300	AK	TRUCK TRACTOR		1
8/7/2024	AKC133000119	AK	DBM39	AK	STRAIGHT TRUCK		1
8/7/2024	AKC133000120	AK	DBM36	AK	STRAIGHT TRUCK		1
8/7/2024	AKC133000121	AK	FCY598	AK	TRUCK TRACTOR		1
8/7/2024	AKC133000122	AK	DBM40	AK	STRAIGHT TRUCK		1
7/26/2024	AKMJC3000057	AK	DBM35	AK	STRAIGHT TRUCK		1
7/22/2024	AKMJC3000045	AK	DBM37	AK	STRAIGHT TRUCK		1
7/19/2024	MTU532000386	MT	JXM817	AK	STRAIGHT TRUCK		1
7/9/2024	AKMJC3000019	AK	KEA154	AK	STRAIGHT TRUCK		1
7/9/2024	AKC132000051	AK	DBM35	AK	STRAIGHT TRUCK		1
7/9/2024	AKC132000052	AK	DBM39	AK	STRAIGHT TRUCK		1

Reviewed-Not Preventable Crash Activity (vehicles involved in crashes)

Total Number of Crashes: 0

This carrier has no crashes to display.

Crashes Included in SMS (vehicles involved in crashes)

Total Number of Crashes: 0

This carrier has no crashes to display.

Investigation Results

Acute/Critical Violations: 0

This carrier has no Acute/Critical violations to display.

Summary of Activities

The summary includes information on the 5 most recent investigations and 24 months of inspections and crash history.

Most Recent Investigation: 8/7/2001 (Compliance Review)
Total Inspections: 30
- Total Inspections without Violations used in SMS: 27
- Total Inspections with Violations used in SMS: 3
Total Crashes* : 0

*Crashes listed represent a motor carrier’s involvement in reportable crashes, regardless of the carrier’s or driver’s role in the crash. Continue for details.

Continue for more Crash, Inspection & Investigation Details

Carrier Registration

Carrier Registration Details Subject to General Threshold Update Registration Info

Inspection Selection System

For licensing and insurance information, visit Motus: USDOT Registration System.
For safety rating and Out-of-Service (OOS) rates, visit SAFER.
If you are a motor carrier looking for your Inspection Selection System (ISS) value, log in to the FMCSA Portal.

Enforcement Cases

(Six years as of 06/28/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 421524

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 5/15/2026, updated monthly)

The summary includes information on the 5 most recent investigations and 24 months of inspections and crash history.

Most Recent Investigation: 8/7/2001 (Compliance Review)	Total Inspections: 30 Total inspections without violations used in SMS: 27 Total inspections with violations used in SMS: 3	Total Crashes: 0*
8/7/2001 (Compliance Review)	# Insp. OOS Driver Inspections 30 3.3% Vehicle Inspections 14 14.3% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 0 Towaway Crashes 0

*Crashes listed represent a motor carrier’s involvement in reportable crashes, regardless of the carrier’s or driver’s role in the crash. Continue for details.

Downloads

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Average PU × Utilization Factor (as of 5/15/2026, updated monthly)

The SMS normalizes the Unsafe Driving and Crash Indicator BASICs measure by carrier size (i.e., a hybrid power unit and vehicle miles travelled measure) to account for exposure. Carrier size is defined as average power units multiplied by the utilization factor.

19.3 Average PU × Utilization Factor = 19.3 Average Power Units × 1 Utilization Factor

Average Power Units
Utilization Factor

In order to account for changes in a carrier's fleet size during the previous 24 months an average power unit value is used in the calculation to determine a carrier's Unsafe Driving BASIC and Crash Indicator measures.

19.3 Average Power Units = 19 Current Power Units + 19 Power Units 6 Months Ago + 20 Power Units 18 Months Ago
3

The Utilization Factor is a multiplier that adjusted the average PU values based on the utilization in terms of VMT per average PU.

Determine Carrier Segment: Straight
Straight trucks/other vehicles constituting more than 30% of the total PU
U.S. DOT# 421524 = 73% Straight trucks/other vehicles
Determine VMT per Average Power Unit
6,207 VMT per Average Power Unit = 120,000 VMT From Registration (MCS-150) ÷ 19.3 Average Power Units

Based on Step 1 and 2 calculate the Utilization Factor

Straight Segment
Meets Criteria	VMT per Avgerage PU	Utilization Factor
	< 20,000	1
	20,000 – 60,000	1 = VMT per PU ÷ 20,000
	60,000 – 200,000	3
	> 200,000	1
	No Recent VMT Information	1

Use of SMS Data/Information

FAST Act of 2015:

Readers should not draw conclusions about a carrier's overall safety condition simply based on the data displayed in this system. Unless a motor carrier has received an UNSATISFACTORY safety rating under part 385 of title 49, Code of Federal Regulations, or has otherwise been ordered to discontinue operations by the Federal Motor Carrier Safety Administration, it is authorized to operate on the Nation's roadways.

Safety Measurement System:

The data in the Safety Measurement System (SMS) is performance data used by the Agency and Enforcement Community. A symbol, based on that data, indicates that FMCSA may prioritize a motor carrier for further monitoring.

The symbol is not intended to imply any federal safety rating of the carrier pursuant to 49 USC 31144. Readers should not draw conclusions about a carrier's overall safety condition simply based on the data displayed in this system. Unless a motor carrier in the SMS has received an UNSATISFACTORY safety rating pursuant to 49 CFR Part 385, or has otherwise been ordered to discontinue operations by the FMCSA, it is authorized to operate on the nation's roadways.

Motor carrier safety ratings are available at http://safer.fmcsa.dot.gov and motor carrier licensing and insurance status are available at http://li-public.fmcsa.dot.gov/.