Carrier profile · USDOT 447950 · MC-243501 · Updated Jun 13, 2026

Flatrock Sand & Gravel Inc

2 power unitsavg 19 yrLocal · 2 statesCOLUMBUS, GA70/100

CARRIER INACTIVEMC-243501 INACTIVE

Authority & Insurance

Active operating authority by type and the full insurance continuity timeline — insurer, policy, coverage, and any lapses — so you can confirm they can legally and adequately haul your load today.

Operating authority· 49 CFR · per type

Operating authority

Common: None
Contract: Inactive
Broker: None

Insurance & bonds

BIPD / liability$1,000,000 in force

Cargo filing (census)Not recorded per census

Surety bond (census)Not recorded per census

Insurance adequacy· filed BIPD vs the $750K federal floor

$1M in forcegeneral-freight federal minimum

$750K floor

Filed BIPD coverage of $1M meets or exceeds the $750K federal minimum for general freight (49 CFR 387.9). Some commodities (hazmat, larger vehicles) require $1M–$5M — confirm against your load.

Insurance continuity· insurer · policy · lapses

$750K BIPD last filed ’17 · 2 insurers · 1 lapseCoverage lapse

Columbia National’16–now

1993200220112020now

Shorter eras are too brief to label at this scale — all 2 insurers are named in the list below.

BIPD in force — $1,000,000 · COLUMBIA NATIONAL INSURANCE COMPANY · since Feb 2017

All 2 insurer eras · dates, limits, renewals

Insurer	Period	Limit	Renewals
COLUMBIA NATIONAL INSURANCE COMPANY	Jul 2016 → Apr 2017	$750K	4
GREAT DIVIDE INSURANCE COMPANY	Apr 1993 → Apr 1994	$750K	2