Carrier profile · USDOT 647673 · MC-305596 · Updated Jun 13, 2026
Cornerstone Sand & Gravel Inc
1 power unitVANCOUVER, WA50/100
CARRIER ACTIVEMC-305596 ACTIVE
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
- Active
- Contract
- Active
- 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
Insurance continuity· insurer · policy · lapses
$750K BIPD last filed ’18 · 6 insurers · 0 lapsesInsurer churn
American States’07–’18
beyond this history1996200420122020now
Shorter eras are too brief to label at this scale — all 6 insurers are named in the list below.
BIPD in force — $1,000,000 · UNITED FINANCIAL CASUALTY COMPANY · since Jul 2018
All 6 insurer eras · dates, limits, renewals
| Insurer | Period | Limit | Renewals |
|---|---|---|---|
| AMERICAN STATES PREFERRED INSURANCE COMPANY | Jul 2007 → Jul 2018 | $750K | 1 |
| PROGRESSIVE CASUALTY INSURANCE COMPANY | Jul 2005 → Jul 2007 | $750K | 1 |
| UNITED FINANCIAL CASUALTY COMPANY | Jul 2005 → Jul 2005 | $750K | 1 |
| BROOKWOOD INSURANCE COMPANY | Jan 2005 → Sep 2005 | $750K | 4 |
| ZC INS. CO /CONVERIUM INS.(NA) INC. | Feb 2001 → Feb 2005 | $750K | 1 |
| AMERICAN STATES INSURANCE CO. | Jul 1996 → Feb 2001 | $750K | 2 |