--- title: "KEYSTONE CONCRETE SERVICES INC | DOT 2145039 | Carrier Profile" url: https://runalphaloops.com/carrier/sc/2145039/keystone-concrete-services-inc description: "KEYSTONE CONCRETE SERVICES INC is a intrastate non-hazmat carrier based in JOHNS ISLAND, SC. Fleet size: 20 power units, 17 drivers. DOT# 2145039." lang: en --- Active Intrastate Non-Hazmat # KEYSTONE CONCRETE SERVICES INC Risk score · full evidence · 72-hour access · No account required DOT # 2145039 Location JOHNS ISLAND, SC Phone 8434020200 Power Units 20 Drivers 17 Trailers 1 Annual Miles In full report Entity Type N/A MCS-150 Date Apr 16, 2026 ## Risk Signals — KEYSTONE CONCRETE SERVICES INC Scanning active / 10 NOT RATED Full risk analysis — historical patterns, fraud connections, financial signals — runs when you… Authority for sale No active listings detected… CLEAR Equipment for sale No fleet VINs found on marketplaces… CLEAR Financial risk Analyzed in the full report… LOCKED Fraud signals Connection analysis in the full report… LOCKED Historical patterns Pattern analysis runs when you unlock the report… LOCKED Recent activity No adverse news in 90 days… CLEAR Unlock the full vetting report Get the exact risk score, full analysis, and the specific evidence + sources behind every signal. One-time · no account required ## Crash Summary Total Crashes 7 All time Fatalities 0 Injuries 8 Tow-Away 7 ## Counterparty Reports Email-verified, moderated transaction reports from brokers, shippers, and carriers who worked with KEYSTONE CONCRETE SERVICES INC. No verified counterparty reports yet Worked a load with KEYSTONE CONCRETE SERVICES INC? Be the first to report how it went. ## About KEYSTONE CONCRETE SERVICES INC Keystone Concrete Services Inc, located in Johns Island, SC, operates a fleet of 18 power units with 15 drivers, specializing in intrastate transportation of construction-related cargo. The company is primarily focused on non-hazardous materials, providing reliable trucking services within its operational scope. Keystone Concrete Services holds the necessary DOT authority to conduct its operations effectively within the state. ### Service Regions Active in 1 states Top states: SC Full state-by-state operating volumes, inspection locations, and lane coverage analysis. ### CSA Safety Scores 5 BASICs 5 BASICs measured Percentile rankings pending FMCSA publication — raw measures + violations available in the report. Full BASIC percentiles, measure scores, BASIC + roadside alerts, and Acute Carrier flags from the latest FMCSA SMS snapshot. ## Operating Authority Common Authority N/A Contract Authority N/A Broker Authority N/A ### Insurance & Coverage BIPD, cargo, and excess liability coverage amounts, policy history, and insurer names. ## Contact Information 8434020200 Physical Address 3791 OLD CHARLESTON RD JOHNS ISLAND, SC 29455 ## Cargo & Operations Cargo Carried Construction Other ### Violations by Category 4 total Most common category Vehicle Maintenance · 50% of violations across 3 categories Full violation breakdown by category, out-of-service rates, and historical trends over time. ### Fleet Analytics 2 trucks Top manufacturers OSHKOSH FREIGHTLINER Sample units 10TJAAP287S0XXXXX 2007 OSHKOSH M1070 10TAFLGF9GS7XXXXX 2016 FREIGHTLINER CASCADIA 125 Full manufacturer, model, and model-year breakdown plus the VIN-level fleet roster. Are you KEYSTONE CONCRETE SERVICES INC? Claim this profile to respond to reviews, keep your info current, and dispute inaccurate signals. Free forever. Vet at Scale ## Need more than a one-off vetting report? Unlimited vetting across every U.S. carrier, monitored continuously — with insurance, risk, contacts, and crash data built into your workflow. See AlphaLoops for Brokers: https://runalphaloops.com/lp/broker-vetting Free trial · no credit card upfront Covers every U.S. carrier Risk score · evidence · 72h access ## Structured data ```json [ { "@context": "https://schema.org", "@type": "LocalBusiness", "name": "KEYSTONE CONCRETE SERVICES INC", "url": "https://runalphaloops.com/carrier/sc/2145039/keystone-concrete-services-inc", "areaServed": [ { "@type": "State", "name": "SC" } ], "address": { "@type": "PostalAddress", "streetAddress": "3791 OLD CHARLESTON RD", "addressLocality": "JOHNS ISLAND", "addressRegion": "SC", "postalCode": "29455", "addressCountry": "US" }, "telephone": "8434020200", "identifier": [ { "@type": "PropertyValue", "name": "DOT Number", "value": "2145039" } ], "numberOfEmployees": { "@type": "QuantitativeValue", "value": 17 } }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What is KEYSTONE CONCRETE SERVICES INC's DOT number?", "acceptedAnswer": { "@type": "Answer", "text": "KEYSTONE CONCRETE SERVICES INC's USDOT number is 2145039. These numbers are assigned by the Federal Motor Carrier Safety Administration (FMCSA)." } }, { "@type": "Question", "name": "Where is KEYSTONE CONCRETE SERVICES INC located?", "acceptedAnswer": { "@type": "Answer", "text": "KEYSTONE CONCRETE SERVICES INC is based in JOHNS ISLAND, SC 29455. They can be reached at 8434020200." } }, { "@type": "Question", "name": "How large is KEYSTONE CONCRETE SERVICES INC's fleet?", "acceptedAnswer": { "@type": "Answer", "text": "KEYSTONE CONCRETE SERVICES INC operates 20 power units with 17 drivers." } }, { "@type": "Question", "name": "Is KEYSTONE CONCRETE SERVICES INC currently active?", "acceptedAnswer": { "@type": "Answer", "text": "KEYSTONE CONCRETE SERVICES INC's USDOT registration is currently listed as active." } } ] }, { "@context": "https://schema.org", "@type": "WebSite", "name": "AlphaLoops", "alternateName": [ "AlphaLoops.com", "Run AlphaLoop" ], "url": "https://runalphaloops.com/" } ] ```