Heavy Construction – Except Building Construction – Contractors
| SIC8 | DESCRIPTION |
| 1611-0000 | HIGHWAY AND STREET CONSTRUCTION |
| 1611-0100 | HIGHWAY SIGNS AND GUARDRAILS |
| 1611-0101 | GUARDRAIL CONSTRUCTION HIGHWAYS |
| 1611-0102 | HIGHWAY AND STREET SIGN INSTALLATION |
| 1611-0200 | SURFACING AND PAVING |
| 1611-0201 | AIRPORT RUNWAY CONSTRUCTION |
| 1611-0202 | CONCRETE CONSTRUCTION: ROADS HIGHWAYS SIDEWALKS ETC. |
| 1611-0203 | GRADING |
| 1611-0204 | HIGHWAY AND STREET PAVING CONTRACTOR |
| 1611-0205 | RESURFACING CONTRACTOR |
| 1611-0206 | SIDEWALK CONSTRUCTION |
| 1611-0207 | GRAVEL OR DIRT ROAD CONSTRUCTION |
| 1611-9901 | GENERAL CONTRACTOR HIGHWAY AND STREET CONSTRUCTION |
| 1611-9902 | HIGHWAY AND STREET MAINTENANCE |
| 1611-9903 | HIGHWAY REFLECTOR INSTALLATION |
| 1622-0000 | BRIDGE TUNNEL AND ELEVATED HIGHWAY CONSTRUCTION |
| 1622-9901 | BRIDGE CONSTRUCTION |
| 1622-9902 | HIGHWAY CONSTRUCTION ELEVATED |
| 1622-9903 | TUNNEL CONSTRUCTION |
| 1622-9904 | VIADUCT CONSTRUCTION |
| 1623-0000 | WATER SEWER AND UTILITY LINES |
| 1623-0100 | OIL AND GAS LINE AND COMPRESSOR STATION CONSTRUCTION |
| 1623-0101 | GAS MAIN CONSTRUCTION |
| 1623-0102 | NATURAL GAS COMPRESSOR STATION CONSTRUCTION |
| 1623-0103 | OIL AND GAS PIPELINE CONSTRUCTION |
| 1623-0104 | PIPELINE WRAPPING |
| 1623-0200 | COMMUNICATION LINE AND TRANSMISSION TOWER CONSTRUCTION |
| 1623-0201 | CABLE LAYING CONSTRUCTION |
| 1623-0202 | CABLE TELEVISION LINE CONSTRUCTION |
| 1623-0203 | TELEPHONE AND COMMUNICATION LINE CONSTRUCTION |
| 1623-0204 | TRANSMITTING TOWER (TELECOMMUNICATION) CONSTRUCTION |
| 1623-0300 | WATER AND SEWER LINE CONSTRUCTION |
| 1623-0301 | AQUEDUCT CONSTRUCTION |
| 1623-0302 | SEWER LINE CONSTRUCTION |
| 1623-0303 | WATER MAIN CONSTRUCTION |
| 1623-9901 | ELECTRIC POWER LINE CONSTRUCTION |
| 1623-9902 | MANHOLE CONSTRUCTION |
| 1623-9903 | PIPE LAYING CONSTRUCTION |
| 1623-9904 | PIPELINE CONSTRUCTION NSK |
| 1623-9905 | PUMPING STATION CONSTRUCTION |
| 1623-9906 | UNDERGROUND UTILITIES CONTRACTOR |
| 1629-0000 | HEAVY CONSTRUCTION NEC |
| 1629-0100 | DAMS WATERWAYS DOCKS AND OTHER MARINE CONSTRUCTION |
| 1629-0101 | CAISSON DRILLING |
| 1629-0102 | CANAL CONSTRUCTION |
| 1629-0103 | DAM CONSTRUCTION |
| 1629-0104 | DOCK CONSTRUCTION |
| 1629-0105 | DRAINAGE SYSTEM CONSTRUCTION |
| 1629-0106 | DREDGING CONTRACTOR |
| 1629-0107 | HARBOR CONSTRUCTION |
| 1629-0108 | IRRIGATION SYSTEM CONSTRUCTION |
| 1629-0109 | LEVEE CONSTRUCTION |
| 1629-0110 | MARINE CONSTRUCTION |
| 1629-0111 | PIER CONSTRUCTION |
| 1629-0112 | POND CONSTRUCTION |
| 1629-0113 | WATERWAY CONSTRUCTION |
| 1629-0200 | RAILROAD AND SUBWAY CONSTRUCTION |
| 1629-0201 | CUTTING OF RIGHT-OF-WAY |
| 1629-0202 | RAILROAD AND RAILWAY ROADBED CONSTRUCTION |
| 1629-0203 | SUBWAY CONSTRUCTION |
| 1629-0300 | ATHLETIC AND RECREATION FACILITIES CONSTRUCTION |
| 1629-0301 | ATHLETIC FIELD CONSTRUCTION |
| 1629-0302 | GOLF COURSE CONSTRUCTION |
| 1629-0303 | TENNIS COURT CONSTRUCTION |
| 1629-0400 | LAND PREPARATION CONSTRUCTION |
| 1629-0401 | LAND LEVELING |
| 1629-0402 | LAND RECLAMATION |
| 1629-0403 | ROCK REMOVAL |
| 1629-0404 | TIMBER REMOVAL |
| 1629-0500 | INDUSTRIAL PLANT CONSTRUCTION |
| 1629-0501 | CHEMICAL PLANT AND REFINERY CONSTRUCTION |
| 1629-0502 | MINE LOADING AND DISCHARGING STATION CONSTRUCTION |
| 1629-0503 | OIL REFINERY CONSTRUCTION |
| 1629-0504 | WASTE DISPOSAL PLANT CONSTRUCTION |
| 1629-0505 | WASTE WATER AND SEWAGE TREATMENT PLANT CONSTRUCTION |
| 1629-9901 | BLASTING CONTRACTOR EXCEPT BUILDING DEMOLITION |
| 1629-9902 | EARTHMOVING CONTRACTOR |
| 1629-9903 | LAND CLEARING CONTRACTOR |
| 1629-9904 | PILE DRIVING CONTRACTOR |
| 1629-9905 | POWER PLANT CONSTRUCTION |
| 1629-9906 | TRENCHING CONTRACTOR |
