Storm Sewer Cost Per Foot: Pricing and Budget Guide 2026
Buyers typically pay a per-foot price for storm sewer lines plus project-specific factors such as trenching, pipe type, and backfill. The cost drivers include pipe diameter, material, depth, and local permitting requirements, which can shift price meaningfully.
Assumptions: region, pipe material, trench length, access, soil conditions, and crew rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Storm sewer pipe per foot | $20 | $35 | $60 | PVC or HDPE typical residential; larger diameters cost more |
| Trench and backfill per linear foot | $15 | $25 | $40 | Soil type and depth affect price |
| Labor per hour | $60 | $85 | $120 | Includes installation crew and supervision |
| Permits & inspections per project | $200 | $900 | $2,500 | Location-dependent |
| Delivery/haul-away per project | $150 | $500 | $1,200 | Material and waste handling |
| Drainage grates & inlets | $100 | $350 | $1,000 | Includes accessories |
| Warranty & contingencies | $50 | $150 | $400 | Typically 1–2 years |
Overview Of Costs
Typical cost range for storm sewer per foot spans $20-$60 for pipe plus $15-$40 for trenching, with total project costs highly sensitive to depth, diameter, and permit scope. The per-foot estimate helps in budgeting, while total project costs reflect site logistics and required inspections. Assumptions: residential layout, standard pipe material, accessible trench lines.
Cost Breakdown
| Category | Low | Mid | High |
|---|---|---|---|
| Materials | $20 | $40 | $60 |
| Labor | $60/hr | $85/hr | $120/hr |
| Equipment | $5 | $15 | $30 |
| Permits | $200 | $900 | $2,500 |
| Delivery/Disposal | $150 | $500 | $1,200 |
| Warranty/Overhead | $50 | $150 | $400 |
| Taxes/Contingency | $30 | $100 | $300 |
Pricing Variables
Key drivers include pipe diameter, material, and trench depth; larger diameter and deeper trenches raise per-foot costs. Additional factors are soil conditions, slope, and required backflow preventers. Assumptions: standard residential lot, no unusual subsurface hazards.
Regional Price Differences
Prices vary by region due to labor markets and permitting environments. A typical three-region view shows urban, suburban, and rural deltas of roughly -10% to +20% relative to national averages. Assumptions: single-family lot, typical urban utilities access.
Labor, Time & Install
Install time grows with trench length, soil conditions, and excavation constraints. Typical crews complete 100-200 feet per day under ordinary conditions; longer runs or challenging soils extend timelines. data-formula=”labor_hours × hourly_rate”>
Additional & Hidden Costs
Hidden costs can include soil testing, safe trench shoring, and temporary traffic control. These items may add 5%-15% to total costs if required by local codes. Assumptions: no emergency repairs or rush timelines.
Real-World Pricing Examples
Basic: 60 ft trench, 18-in diameter PVC, standard backfill, no permits overhead. Materials: $2,400; Labor: 8 hours @ $85/hr; Permits: $350; Total: approx. $3,650.
Mid-Range: 150 ft, 24-in HDPE, trenching with minor slope, standard curb inlets. Materials: $6,000; Labor: 16 hours @ $85/hr; Permits/Inspections: $900; Delivery: $350; Total: approx. $11,250.
Premium: 300 ft, 36-in concrete-encased pipe, deep trench, specialty grates, enhanced backfill, expedited permit handling. Materials: $22,500; Labor: 40 hours @ $120/hr; Permits/Inspections: $2,000; Delivery/Disposal: $1,000; Total: approx. $48,000.