Restoration Improves Structural Integrity, Extends Service Life

As infrastructure ages, deterioration of storm, sanitary and combined sewer culverts are an inevitable and costly reality. Whatever the material or construction—brick, corrugated metal, reinforced concrete, stone, tile or precast arched or box construction—these structures are susceptible to corrosion and deterioration due to surface water inflow, traffic impact loading, chemical corrosion and freeze-thaw cycles.

Long-term erosion of sub-surface drainage flow lines eventually compromises the concrete and metal construction. Once compromised, the water running through the culvert takes the sand, rock, dirt and backfill downstream, leaving voids underneath the pipes. Shifting then causes the surface pavement to settle or sink holes to open necessitating replacement or restoration of the line.

Cast-In-Place Applications Extend Service Life

MCSP experts utilize a cast-in-place restoration method to restore compromised pipes which significantly improves structural integrity, helping to extend the service life of the pipeline. Since the staging area for the work is typically small, there is also minimal traffic, flow disruption or diversion.

A high-strength cementitious coating, containing a proprietary blend of additives, is applied making a once structurally compromised pipeline, impermeable. To further prevent cracking and shrinkage, MSCP can apply epoxies and urethane coatings to the cementitious lining which can extend the life of the concrete or pipe. These coatings prevent leakage, abrasion and are resistant to bacterial and chemical exposure.

Spin Casting, A Versatile Repair Method

The spin casting process relies on a precisely controlled spin caster that is inserted into the pipe and withdrawn at a calculated speed. Per engineer specifications, thin layers of high-strength, cementitious grout or mortar are deposited, lining and adhering tightly to the original substrate.

Most pipelines require two or three passes, one to fill in and smooth out pipe corrugations, and additional layers add strength. The finished lining is smooth, tightly bonded, evenly distributed, and waterproof. The result is a new, structurally sound concrete pipe with only a minor impact on flow capacity.

Compared to other trenchless solutions, spin casting is an efficient, long-lasting structural repair method for large diameter pipe, often costing less per foot than other options.

Sliplining Large Diameter Pipelines

Sliplining, a form of trenchless rehabilitation, is used to repair leaks or restore the structural stability and integrity of an existing pipeline.

The sliplining method can be utilized for any size pipe, given that there is appropriate access, and a new pipe is small or large enough to “slip in and line” the host pipe. If the host pipe is in a structurally sound condition (no sagging, or shape loss in pipe), then sliplining is generally a cost-effective rehabilitation method.

Sliplining offers all the benefits and service life of a new pipe with minimal construction disruption and, as with storm culverts, often without bypass pumping.

Stormwater, Sanitary Sewer + Culvert Restoration

MCSP provides restoration solutions for the inevitable deterioration of aging concrete and metal stormwater and sanitary sewer systems. These compromised drainage flow lines often require replacement or restoration. Our pipeline and culvert restoration expertise include:

Sanitary Sewer Line Restoration

Cementitious Application (Large Diameter Pipeline)

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What They Say

As specialists in structural repair and corrosive protection, MCSP has been safely and effectively restoring storm water and sanitary sewer systems since 2000. Our commitment to exceeding client expectations with quality workmanship is what drives us. Critical to our success are the strong client and partner relationships that we have built along the way. We are proud of these relationships and we look forward to building upon this foundation into the future.

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