Downspout & Sump Discharge Routing in Missoula, MT

A downspout extension can solve a short roof-water route, but a long discharge line needs grade, cleanouts, and a receiving point. We map every downspout, sump outlet, walk, fence, and low area before we choose a surface or buried path. We also look for winter ice at stairs, spring saturation at the foundation, and a route that sends water toward a neighbor.

The plan can include a solid pipe, a splash pad, a swale, a catch basin, or a controlled discharge point. We keep a sump line separate from sanitary plumbing and mark access for future service. If a route connects to a city stormwater system, the City of Missoula lists service connections, stubs, repairs, and abandonments under its stormwater permit process. A licensed, bonded excavator must purchase those permits.