Civil Sitework Cost Estimating: Per CY, Per SF, and Labor Rates

Sitework cost estimating turns your CY, SF, and LF quantities into real dollars. This guide gives you 2026 unit prices for earthwork, paving, utilities, and site concrete, plus labor rates, equipment rates, and the markup math needed to win and deliver sitework bids.

1. Sitework Cost Per Square Foot

The question "what does sitework cost per square foot" has the widest range of any trade. Site conditions control everything. Still, some 2026 reality checks:

Sitework rough ranges (2026, per SF of building footprint)

• Flat, clean, small site, minimal utilities: $6–$10/SF.
• Typical commercial site with moderate earthwork: $10–$18/SF.
• Heavy cut/fill or deep utilities: $18–$30/SF.
• Urban infill, contaminated soil, dewatering: $30–$60+/SF.
• Parking lot only (asphalt + base): $6–$11/SF of paved area.

2. Earthwork Pricing

Earthwork is priced by the cubic yard, but what CY you are pricing matters: bank (BCY), loose (LCY), or compacted (CCY).

Typical earthwork unit prices (2026)

• Mass excavation, large quantity, easy soil: $6–$12/BCY.
• Mass excavation, small quantity or heavy clay: $12–$22/BCY.
• Trench excavation (5–8 ft deep): $15–$45/CY depending on size and soil.
• Engineered fill, placed and compacted: $18–$35/CCY.
• Import fill (select material): $25–$55/CCY including haul.
• Export to off-site dump: $8–$25/LCY depending on haul and tip fee.
• Rock excavation (ripping): $25–$60/BCY.
• Rock excavation (blasting): $40–$150+/BCY.
• Topsoil strip and stockpile: $2.50–$5/BCY.
• Topsoil spread at finish: $4–$9/CY placed.

3. Paving and Base Course

Paving prices come from two main components: the asphalt or concrete itself, and the prepared base underneath.

Asphalt pricing (2026)

• Hot mix asphalt material delivered: $85–$145 per ton.
• Light-duty parking lot (2" mat): $2.50–$4.50/SF installed.
• Standard parking lot (3" section): $3.50–$6/SF.
• Heavy-duty pavement (4–6" section): $5–$10/SF.
• Milling and overlay (resurfacing): $2.50–$5/SF.
• Seal coat: $0.20–$0.45/SF.
• Pavement striping: $4–$9/LF (4") painted, $8–$20/LF thermoplastic.

Aggregate base

• Crushed stone delivered: $18–$35 per ton.
• Placed and compacted: $25–$50 per ton or $1.20–$2.50/SF for typical 6" lift.

Portland cement concrete paving

• 6" PCC paving: $7–$13/SF installed.
• 8" heavy duty PCC: $10–$16/SF installed.

4. Utility Pipe and Structure Cost

Site utility pricing varies by pipe size, depth, material, and soil conditions.

Sanitary sewer pipe (installed)

• 4" PVC SDR-35: $25–$45/LF.
• 6" PVC: $35–$60/LF.
• 8" PVC: $50–$85/LF.
• 10" PVC: $65–$110/LF.
• Sanitary manhole 4' dia, 6' deep: $3,800–$6,500 each.
• Cleanout: $450–$900 each.

Storm drainage pipe (installed)

• 12" RCP: $65–$120/LF.
• 15" RCP: $95–$160/LF.
• 18" RCP: $110–$190/LF.
• 24" RCP: $180–$320/LF.
• 36" RCP: $300–$600/LF.
• HDPE pipe: 10–25% less than equivalent RCP.
• Catch basin 4' dia: $2,500–$4,500 each.
• Area drain: $800–$1,800 each.
• Storm manhole: similar to sanitary pricing.

Water line pricing (installed)

• 2" copper service: $35–$70/LF.
• 6" ductile iron: $85–$140/LF.
• 8" ductile iron: $110–$180/LF.
• Fire hydrant assembly: $4,500–$8,500 each.
• Gate valve with box, 6"-8": $2,200–$4,500 each.
• Tapping sleeve and valve: $5,000–$12,000 each.

5. Site Concrete Pricing

Site concrete covers curbs, gutters, sidewalks, and miscellaneous pads outside the building.

Typical installed costs (2026)

• 4" sidewalk: $6–$12/SF.
• 5"–6" ADA-compliant sidewalk: $10–$18/SF.
• 24" combined curb and gutter: $22–$42/LF.
• Extruded machine curb: $18–$32/LF.
• Handicap ramp with detectable warning: $1,200–$2,800 each.
• Equipment pads (mechanical, dumpster, transformer): $12–$22/SF at 6" thick.
• Bollards (concrete-filled pipe): $450–$1,100 each installed.

6. Labor Rates

Sitework labor is a mix of operators, pipe layers, laborers, and supervisors.

Hourly labor rates (2026)

• Operating engineer open-shop base: $35–$55/hr.
• Operating engineer burdened: $65–$100/hr.
• Union operator base: $48–$80/hr + $25–$45/hr fringe.
• Laborer open-shop base: $22–$35/hr.
• Laborer burdened: $45–$70/hr.
• Pipe layer / form carpenter: +$3–$8/hr premium over laborer.
• Site superintendent: $45–$75/hr base, often salaried.
• Foreman: +$6–$12/hr over journeyman rate.

Labor burden

Sitework workers comp class is high (often 10–18% of payroll). Total burden typically runs 40–60% of base wage. A $40/hr operator costs $60–$64/hr fully loaded.

7. Equipment Rates

Sitework is equipment-heavy. Internal equipment rates typically include fuel, maintenance, and a piece of equipment ownership cost.

Typical equipment rates (2026, operator included)

• Mini excavator (3–5 ton): $45–$85/hr.
• Excavator 1.5 CY (35-ton class): $140–$240/hr.
• D6 dozer: $150–$240/hr.
• Motor grader: $160–$260/hr.
• Skid steer with operator: $85–$140/hr.
• Compactor (smooth drum): $95–$160/hr.
• On-road dump truck (14–18 CY): $110–$185/hr.
• Water truck: $100–$175/hr.
• Asphalt paver (10 ft): $300–$500/hr plus crew.

8. Overhead and Markup

Sitework overhead is real and often underestimated: equipment storage yard, mechanics, equipment owner costs, bonds, insurance, and project management.

Overhead allocation

Most sitework contractors apply 8–15% overhead on top of direct cost. Big heavy civil firms with large equipment fleets often calculate overhead as an equipment-hour burden rolled into the internal equipment rate.

Profit

• Large public heavy civil: 5–10% profit (tight bidding).
• Commercial sitework: 10–18% profit.
• Small residential or specialty: 15–30% profit.
• Emergency or specialty work: 25–50%+ profit.

Bonds and insurance

Public work almost always requires performance and payment bonds at 0.75–2% of contract value. General liability and builder's risk may add another 1–2%. Include them as bid line items, not overhead.

9. Biggest Sitework Cost Risks

Sitework has more bid risk than almost any other trade because so much is underground or undiscoverable until you start digging.

Top risks to price (or carry allowances for)

• Unknown soils: rock, high groundwater, contamination, expansive clay.
• Unbalanced earthwork: import or export costs dominate the job.
• Utility conflicts: existing pipes not shown on drawings.
• Dewatering: sudden groundwater can add $50k–$500k to a bid.
• Weather shutdowns: rain days extend equipment rental and labor costs.
• Permit delays: sitting with mobilized equipment costs money.
• Design changes: civil is often the first to absorb scope creep.

Using a contingency

Always carry a 5–10% contingency on sitework bids. On risky sites (urban, contaminated, rock, high water table) bump it to 15–20%. This is not fat to trim. It is how you stay in business after the second unexpected clay pocket.

10. Putting the Bid Together

A complete civil-sitework estimating cost workbook shows: quantities → material/disposal/import costs → equipment hours × internal rate → labor hours × burdened rate → subcontractor costs (striping, hydroseeding) → bonds and insurance → mobilization → contingency → subtotal → overhead → profit → bid price. Keep every line visible. When actuals come in post-job, you will learn exactly where your assumptions held up and where they did not. Over 10 jobs your sitework pricing will be sharper than any published cost guide.