Commercial drainage installation in New York runs $22 to $200+ per linear foot for pipe work and $8,000 to $85,000+ per basin for detention and retention ponds. A full commercial site drainage package on a 10-acre development typically lands between $125,000 and $450,000. Pipe material, trench depth, pond size, and NYSDEC SPDES compliance requirements drive most of the variation.
This guide covers commercial drainage installation cost per linear foot for RCP, HDPE, and PVC storm drain; detention and retention pond construction cost; agricultural drain tile pricing; inlet and outlet structure cost; and the New York regulatory framework that shapes every commercial drainage project. Numbers are from recent commercial and industrial work in Central and Western New York.
Drainage Installation Cost: Quick Reference
The following 2026 ranges reflect commercial and industrial drainage installation in Central and Western New York. Costs include excavation, bedding, pipe installation, backfill, and standard surface restoration. Pipe material is priced separately when owner-supplied.
| Drainage Element | Cost | Notes |
|---|---|---|
| 12" PVC storm drain, 0–6 ft deep | $28–$45/LF | SDR-35, common residential/light commercial |
| 15"–18" PVC storm drain, 6–10 ft | $45–$75/LF | Larger commercial sites, shallow runs |
| 18"–24" RCP, 6–12 ft | $75–$145/LF | AASHTO M170 concrete pipe, deeper installs |
| 24"–36" HDPE or RCP, 8–14 ft | $135–$220/LF | Municipal and industrial main runs |
| Agricultural drain tile (4" perforated) | $1.25–$2.50/LF | Farmland, solar site sub-surface drainage |
| Catch basin (standard 4'x4') | $1,800–$3,800 each | Pre-cast concrete with grate |
| Manhole (standard 4' diameter) | $2,800–$5,500 each | Pre-cast, depth-dependent |
| Detention pond (small, under 1 AC-FT) | $8,000–$25,000 | Earthen, with outlet control structure |
| Detention pond (medium, 1–3 AC-FT) | $25,000–$65,000 | Includes riprap, spillway, SWPPP |
| Detention/retention pond (large, 3–10 AC-FT) | $65,000–$180,000+ | Large commercial, some municipal |
Commercial Storm Drainage Cost Per Linear Foot
Storm drain pipe installation is the largest single line item on most commercial site drainage packages. Cost per LF is a function of four variables: pipe material, pipe diameter, trench depth, and site conditions.
Pipe Material Comparison
Three pipe materials cover 95% of commercial storm drainage in New York:
- PVC (SDR-35 or ASTM F949): Common for 4"–18" diameter, shallow to medium depth. Cheaper per LF, easier to install, but less robust for deep burial or heavy traffic loading. $28–$75/LF installed in sizes under 18".
- RCP (Reinforced Concrete Pipe, AASHTO M170): The workhorse for 18"–48" diameter commercial and municipal storm drain. Heavy, durable, specified under NYSDOT Item 603. Higher pipe cost, slower installation, but standard for commercial projects. $75–$220/LF installed.
- HDPE (High Density Polyethylene, AASHTO M252/M294): Competing with RCP on large-diameter storm drain. Lighter to install, corrosion-resistant, and often priced 10–20% below RCP on equivalent diameter. Increasingly specified for commercial and industrial sites. $95–$210/LF installed.
Trench Depth Impact
Cost per LF rises steeply with trench depth. For a 24" pipe:
- 0–6 ft depth: $65–$110/LF. Minimal shoring, quick production.
- 6–12 ft depth: $95–$155/LF. Trench box shoring required for OSHA Subpart P compliance. Dewatering often needed in Central New York seasonal high water tables.
- 12–18 ft depth: $145–$220/LF. Full trench shielding, continuous dewatering typical, slower production.
- 18+ ft depth: $220–$400+/LF. Specialized shielding, significant dewatering, slow production. Common on deep municipal collection mains.
Commercial storm drain longer than 400 LF usually includes multiple pipe sizes as the pipe steps down toward the outlet. Our storm drainage service page walks through the RCP vs HDPE specification decisions in detail.
Detention and Retention Pond Cost
NYSDEC SPDES GP-0-20-001 and the NYS Stormwater Management Design Manual (the "Blue Book") require on-site stormwater management for most commercial developments disturbing 1 acre or more. The result is detention or retention ponds on almost every commercial site. Cost by size:
Small Ponds (Under 1 Acre-Foot)
Typical for 1–5 acre commercial lots. Earthen construction, outlet control structure (concrete riser with orifice), emergency spillway, rip-rap energy dissipation, vegetated side slopes. Cost: $8,000–$25,000. Construction takes 3–7 working days with an excavator, dozer, and dump truck.
Medium Ponds (1–3 Acre-Feet)
Typical for 5–15 acre commercial developments, warehouses, retail centers. Larger earthwork quantity (1,500–4,500 CY), more substantial outlet structure, anti-seep collars on the principal spillway, geotextile lining if required. Cost: $25,000–$65,000. 7–14 working days.
Large Ponds (3–10+ Acre-Feet)
Typical for industrial sites, municipal facilities, large mixed-use developments. Substantial earthwork (5,000–15,000+ CY), engineered core trenches on dam embankments, primary and emergency spillways designed to handle 100-year storm events, may require NYSDEC dam-safety review if storage exceeds 3 AC-FT with a dam over 6 ft high. Cost: $65,000–$180,000+. 14–35 working days.
What Drives Pond Cost
Pond cost scales with earthwork volume and outlet complexity, not footprint. A 2 AC-FT pond on flat land costs less than a 1 AC-FT pond on a sloping site because the sloping site requires more cut-and-fill. Rip-rap, geotextile lining, anti-seep collars, and concrete outlet structures all add cost. Post-construction vegetation establishment (hydroseeding, sod) runs $2,000–$8,000 per basin.
Agricultural Drain Tile Installation Cost
Agricultural drain tile — perforated plastic pipe installed 24–48 inches below grade to lower seasonal water tables — is a distinct drainage market with very different economics from storm drainage. Cost per LF is dramatically lower because the tile is small diameter (typically 4", 6", or 8"), the pipe is lightweight corrugated HDPE, and the installation uses specialized tile plows that install at speeds of 2–10 miles per day.
- 4" perforated corrugated HDPE tile: $1.25–$2.50/LF
- 6" perforated corrugated HDPE tile: $2.00–$3.75/LF
- 8"–10" collector tile: $3.50–$6.50/LF
- Outlet structures and connections: $400–$1,200 each
- Per-acre total for full agricultural tile system: $850–$1,800/acre
Solar farms are a major growth segment for drain tile: a 100-acre solar site often requires subsurface drainage to manage panel-shed runoff and prevent saturation around pile foundations. Total site cost for solar drain tile runs $85,000–$180,000 on a 100-acre installation. See our drain tile repair service and agricultural drainage tile service pages for more.
Inlet, Outlet, and Junction Structure Costs
Beyond the pipe, every commercial drainage system includes structures for collection, connection, and outfall control.
- Catch basin (standard 4'x4' pre-cast): $1,800–$3,800 each installed
- Drop inlet (2'x3' throat): $2,200–$4,500 each
- Manhole (4' diameter pre-cast, up to 12' deep): $2,800–$5,500 each
- Junction box (custom concrete): $4,500–$12,000 each
- Outlet control structure (riser with orifice): $3,500–$9,500 each
- Rip-rap apron (outlet protection): $800–$2,500 per outlet
- Flared end section (FES) pre-cast: $650–$1,400 each
- Outlet control valves and gate wells: $8,000–$25,000 each
On a typical 10-acre commercial site, structure costs run $18,000–$45,000 covering 4–8 catch basins, 2–4 manholes, and outlet control on the detention pond. Structure count multiplies with site complexity — big-box retail and industrial sites can easily have 15–25 structures.
New York Regulatory Requirements That Affect Drainage Cost
Commercial drainage installation in New York is heavily regulated. Three frameworks drive most of the cost impact.
NYSDEC SPDES GP-0-20-001
Any construction disturbing 1 acre or more requires a SWPPP (Stormwater Pollution Prevention Plan) filed with NYSDEC. The SWPPP specifies both temporary construction-phase erosion control and permanent post-construction stormwater management. On commercial sites, the post-construction piece typically dictates at least one detention or retention basin sized to control the 1-year, 10-year, and 100-year storm events. SWPPP compliance adds $15,000–$80,000 to total project cost depending on site size.
NYS Stormwater Management Design Manual
The "Blue Book" sets the design standards for post-construction stormwater management: water quality volume (WQV), runoff reduction volume (RRV), channel protection volume (CPv), overbank flood volume (Q10), extreme flood volume (Q100). Commercial site engineers design to these standards; contractors like Backwell build to the resulting plan.
Local Municipal Review
Town, village, and county planning boards review commercial site plans for stormwater compliance independently of NYSDEC. Some municipalities have their own stormwater ordinances that are stricter than the state standard. Plan on 3–12 months of municipal review on commercial projects, with cost impact from potential design changes.
Prevailing Wage on Public Work
Public drainage projects (municipal storm sewer extensions, state roadway drainage, publicly funded commercial infrastructure) require Davis-Bacon or NYS prevailing wage. Typical uplift: 15–25% on the labor portion.
On commercial sites, drainage installation usually runs concurrently with or immediately after mass grading — you need rough grade in place to trench at design depth, but you need drainage in before final grade. Sequencing matters: if drainage is delayed, the site cannot be stabilized, and SWPPP monitoring costs escalate. Backwell typically staggers mass grading, drainage trenching, and fine grading across the site in a leapfrog pattern to keep all three phases moving.
Example Commercial Drainage Projects in New York
Example 1: 12-Acre Retail Center, Onondaga County
Mixed-use retail with big-box anchor, 1,200 LF of 18"–24" RCP storm drain, 8 catch basins, 3 manholes, outlet control structure on a 1.8 AC-FT detention pond. Pipe installation: 1,200 LF avg $105/LF = $126,000. Structures: $32,500. Detention pond: $52,000. Total: $210,500. Schedule: 5 weeks.
Example 2: 85,000 SF Industrial Warehouse, Madison County
Greenfield industrial pad with 2.8 AC-FT detention pond (local SWPPP requirement), 2,400 LF of HDPE storm drain in multiple sizes (12" to 30"), 14 catch basins, 5 manholes, outlet control structure, 220 LF of rip-rap channel to receiving stream. Pipe: $245,000. Structures: $58,000. Pond: $68,000. Channel: $18,500. Total: $389,500. Schedule: 7 weeks.
Example 3: 45-Acre Solar Farm, Oswego County
Subsurface drainage to manage panel runoff around pile foundations. 42,000 LF of 4" perforated drain tile in a grid pattern, 28 outlet structures, 3 collector mains (8" tile), discharging to a vegetated swale system. IRA prevailing wage. Drain tile: $82,000. Outlets and collectors: $32,500. Swale construction: $18,000. Total: $132,500. Schedule: 4 weeks.
Example 4: 280 LF Municipal Storm Sewer Extension, Rome
30" RCP main at 14 ft depth, trench-box shoring, continuous dewatering, 4 new manholes, connection to existing municipal storm system. NYS prevailing wage. Asphalt pavement restoration. Pipe: $48,000. Structures: $18,500. Pavement: $12,800. Total: $79,300. Schedule: 11 working days.
Hiring a Commercial Drainage Contractor in New York
Commercial drainage clients need a contractor who understands NYSDEC SPDES compliance, can install to NYSDOT Item 603/605 spec, runs their own trench boxes and dewatering, and can file certified payroll on public work. Backwell is a full-service commercial drainage contractor serving Central and Western New York. We install storm drain in PVC, RCP, and HDPE; build detention and retention ponds to the NYS Blue Book standard; install agricultural and solar drain tile at industrial scale; and handle the SWPPP administration that commercial drainage projects require.
Our commercial storm drainage service, drain tile repair, and underground utilities service pages cover the full scope.
Get a Commercial Drainage Estimate
Send the stormwater management plan and we will walk the site within a week. Bid response within one business day.
(315) 400-2654 Email [email protected]Related Reading
- Stormwater Management Costs in Onondaga County — county-specific SWPPP cost guide
- Excavation Cost Per Cubic Yard — earthwork pricing for the dig portion
- Commercial Site Work Cost Breakdown — full civil package composition
- Underground Utility Installation Costs — parallel utility work cost guide
- Commercial Storm Drainage Service — full service page with RCP/HDPE spec detail
- Drain Tile Repair and Installation — ag and solar sub-surface drainage