Stormwater management infrastructure for commercial sites: catch basins, detention ponds, bioretention, conveyance.
Storm drainage design and installation in Manlius is constrained by the Town's zero-net-runoff ordinance, making every project an exercise in creative stormwater management. The Town Engineering Department requires all commercial developments to match post-construction runoff rates to pre-development conditions for the 1-year, 10-year, and 100-year storm events. Backwell installs storm drainage systems throughout the Town including reinforced concrete pipe mainlines, HDPE and PVC laterals, precast concrete structures, and engineered infiltration practices.
Catch basins, storm sewer conveyance, detention and retention ponds, bioretention, permeable pavement, and stormwater management infrastructure. SWPPP and MS4 compliance.
Manlius sits directly atop the bedrock formation that bears its name — the Manlius Limestone, a Devonian-age carbonate unit roughly 400 million years old that outcrops throughout the Town and gave geologists their type locality here. This karst limestone creates significant excavation challenges: solution cavities, bedrock pinnacles within inches of the surface, and active sinkhole zones particularly along the Limestone Creek corridor and near the Green Lakes meromictic basins. Any commercial excavation deeper than 4 feet in Manlius should assume rock hammering, controlled blasting evaluations, and sinkhole risk assessments as baseline requirements.
The Town of Manlius maintains some of the most stringent development regulations in Onondaga County, reflecting decades of effort to preserve its suburban character and protect Limestone Creek watershed. Commercial site plan review runs through both the Planning Board and Environmental Management Council, with typical engineering review timelines of 3 to 5 months before any excavation permit issues. Stormwater management plans must demonstrate zero net runoff increase and address karst sinkhole recharge concerns.
Backwell serves commercial and municipal clients throughout Manlius, including:
Commercial minimum $20,000. We run our own fleet — excavators, dozers, tri-axle dump trucks, compaction equipment — and self-haul all material. No third-party trucking markup, no schedule surprises. 5.0 stars across 25 Google reviews from contractors, developers, and municipal clients across Central New York.
For broader commercial site work in the region, see our guide on commercial site work costs in Central New York.
Call (315) 400-2654 for project estimates, or send site plans for review. We typically respond within 24 hours on commercial inquiries.
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