Market

Engineering for Sewer Infrastructure

RSP Engineers provides sewer force mains, gravity pipes, and pump stations for reliable wastewater collection, protecting public health and the environment.

Proposed sewer main profile drawing showing manholes, pipe runs and grades

Wastewater Solutions for
the Future

We provide engineering for the critical wastewater collection systems that are essential to public health and environmental protection. We specialize in designing resilient and efficient sewer infrastructure, including gravity sewer pipes, force mains and pump stations. We partner with municipal and regional utilities to manage wastewater conveyance, prevent overflows and ensure the long-term integrity of these underground assets

Wastewater Collection Systems Services

Our team provides solutions for every aspect of wastewater collection, from design to rehabilitation. We meet sewer infrastructure needs:

Wastewater Pump (lift) Station Design

When gravity isn’t an option, lift stations are necessary. We design complete wastewater pump stations, including wet wells, submersible or chopper pumps and sophisticated control systems with Variable Frequency Drives (VFDs) to optimize performance and energy use. Our designs prioritize reliability, maintenance and backup power systems.

Sewer Force Main Design

We design the pressurized pipes that transport wastewater from pump stations to treatment facilities. Our expertise includes hydraulic analysis to determine pipe size and velocity, material selection (DIP, PVC, HDPE) to combat corrosion and design of pressure surge controls and air release valves to ensure safe and reliable operation.

System Assessment and Rehabilitation

We help utilities address aging infrastructure. Using advanced methods like sewer camera inspections, we identify defects, assess pipe condition and design trenchless rehabilitation solutions like Cured-in-Place Pipe (CIPP) to restore structural integrity and reduce infiltration and inflow (I&I).

Permitting for Sewer Infrastructure Projects

Sewer projects need to be coordinated with environmental and public works agencies. We handle site development permits and collaborate with local authorities to secure zoning changes, special use permits, and site plan approvals for mission-critical facilities. Our experience with city/municipal and county governments across the country means a smooth and efficient process.

And we handle the permitting process, getting approvals from local, county and state agencies for sewer line construction, pump station installations and any connections or discharges. We make sure all designs meet environmental regulations to protect our communities and waterways. Get in touch with our team today!

Built on Trust

What Our Clients Say

Related project examples

Composite utility plan for a resort community showing a new 6-inch water main and 8-inch gravity sewer threaded between numbered occupied lots, with services to each lot.

Case study· Engineering for Sewer Infrastructure

Water main and gravity sewer replacement for an occupied resort community in Manatee County

Manatee County, Florida

An established resort community in Manatee County needed its water distribution and sanitary collection systems replaced beneath occupied lots. The approved design carries 2,765 feet of 8-inch gravity sewer, most of it at minimum grade on flat coastal ground, to a private lift station serving the county system.

Read case study →
What does sewer infrastructure engineering cover?

Gravity sewers, force mains and pump stations for wastewater collection - the design, the hydraulic analysis behind it, and the permitting and agency coordination.

When is a pump station needed?

When gravity will not carry flow to the connection point. That is a question of elevations along the route, and it is answered early because a pump station changes the cost, the footprint and the operating burden.

Which agencies review sewer projects?

Environmental and public works agencies, along with local authorities for zoning, site development and the crossings the alignment needs. Which apply depends on the route and the receiving system.

What about existing systems with inflow and infiltration?

That is evaluation work rather than design - flow monitoring, smoke and dye testing and camera inspection to find where extraneous water enters, which then sets the repair priorities.

What do you need from me to start?

The service area or alignment, the flows involved, the receiving system and its owner, and any existing records, modelling or inspection data.