ZIP Code 61101 Construction Cost Estimating & Crew Wage Index (Rockford, IL)
Bid-ready CSI MasterFormat Divisions 01–48 material takeoffs and labor cost estimates calibrated directly to postal code 61101 in Rockford, Winnebago County, Illinois. Delivered in unlocked Excel + color PDF takeoff layers within 24–48 hours, flat fee from $80.
ZIP 61101 Calibration Card
- Jurisdiction
- Winnebago County
- ZIP Labor Index
- 123.4
- Material Freight Index
- 99.6
- Composite Multiplier
- 1.13x (112.7)
- Coordinates
- 42.2922, -89.1161
ZIP 61101 (Rockford, IL) Burdened Trade Labor & CSI Assembly Rates
Calibrated for Strong Union / Prevailing Wage bidding in Winnebago County (123.4 labor factor).
| CSI Division | Trade & Benchmark Assembly | ZIP 61101 Crew Rate | ZIP Installed Unit Cost | Flat Takeoff Fee |
|---|---|---|---|---|
| Div 26 | Commercial Electrical Distribution & LED Package | $96.87/hr | $22.09/SF | From $85 |
| Div 23 | Packaged VAV RTU + SMACNA Galvanized Ductwork | $92.30/hr | $25.24/SF | From $85 |
| Div 22 | Cast-Iron DWV + Type L Copper Domestic Plumbing | $94.03/hr | $11.04/SF | From $85 |
| Div 03 | 4,000 PSI Footings & Slab-on-Grade w/ Grade 60 Rebar | $80.09/hr | $268.23/CY | From $80 |
| Div 05 | A992 Wide-Flange Structural Steel + Metal Decking | $97.98/hr | $4790/TON | From $90 |
| Div 09 | Metal Stud Framing, Type X Gypsum & ACT Ceilings | $82.06/hr | $11.55/SF | From $80 |
| Div 31 | 3D GPS Mass Grading, Trenching & Select Structural Fill | $88.97/hr | $38.88/CY | From $95 |
IL Building & NEC Code Notes
Chicago Building Code (mandating EMT/rigid metal conduit & cast-iron/copper DWV in key occupancies) + Illinois Energy Conservation Code statewide.
Site & Environmental Scope Factors
42-inch frost depth, Chicago caisson/belled-pier foundations to hardpan, winter concrete heating enclosures, and strict urban union rules.
Prevailing Wage Rules in ZIP 61101
Illinois Prevailing Wage Act (820 ILCS 130) mandates county-specific prevailing wages + fringe benefits on all public works.