The Lifecycle of a Road

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Every road you drive on is the result of years of planning, design, engineering, and teamwork.

This guide breaks down each phase of the process so you can better understand what’s happening, why it takes time, and how it all comes together to keep West Des Moines moving forward.

1. Construction

New roads in West Des Moines are built with high-quality concrete and asphalt designed to last decades.

Construction involves careful planning, preparing the ground, and laying pavement to handle traffic and Iowa’s freeze-thaw cycles.

Careful Planning

Doing it right at this stage is critical because it sets the foundation for how long a road will last.

Preparing the Ground

Crews remove soil, level the base, and ensure the foundation is strong enough to support heavy traffic.

Laying Pavement

Asphalt or concrete is poured, compacted, and shaped into the smooth surface drivers rely on every day.

2. Early Life Maintenance

Early life maintenance keeps new roads in good condition by addressing small issues before they become big problems. Regular care extends the lifespan of the pavement and helps the City save money in the long run.

Routine Inspections

Crews regularly check pavement conditions to spot cracks, wear, and drainage issues early.

Crack Sealing & Repairs

Filling cracks and repairing potholes keeps water out and prevents further damage to the base of the road.

Surface Treatments

Protective coatings like seal coats help roads last longer by shielding them from traffic and weather.

3. Preservation & Rehabilitation

Over time, all roads develop wear from traffic, weather, and everyday use. When that happens, the City uses preservation strategies like patching or adding a thin asphalt overlay to extend the road’s life. These repairs restore smoothness, improve safety, and are far less disruptive and costly than full reconstruction. Well-timed rehabilitation can add 15–20 years of service to a road.

Patching

Crews repair small sections of damaged pavement to restore driving smoothness and prevent worsening issues.

Asphalt Overlay

A thin layer of asphalt is applied over the road surface, restoring strength and extending the pavement’s lifespan.

Extended Road Life

Well-timed rehabilitation improves safety and can add 15–20 years of service to a road before full reconstruction is needed.

4. Reconstruction

Eventually, some roads reach the end of their service life and need full reconstruction. This involves removing old pavement, rebuilding the foundation, and installing a new surface. Reconstruction is the most expensive and disruptive step, but it’s necessary to ensure safe, reliable roads for the future. With proper care, reconstructed roads can serve residents for many decades.