The City of Marshalltown is launching a pilot project on November 4 to test a new asphalt preservation treatment aimed at slowing road deterioration and extending municipal street lifespans. Following this year’s successful mill-and-overlay rehabilitation of over 70 blocks, Public Works is targeting four specific street segments.
In Plain English: The Clinical Takeaway
- Preventive Maintenance: The pilot tests a cost-effective liquid emulsion designed to seal the road surface and slow down structural deterioration before extensive reconstruction is required.
- Targeted Corridors: Testing is limited to four specific street segments exhibiting varying levels of road wear to accurately measure efficacy.
- Active Mitigation: Operations utilize single-lane closures and temporary sanding to manage traffic flow and prevent emulsion tracking on personal property.
Targeted Street Segments for the November 4 Pilot
Marshalltown Public Works selected four distinct street segments for the preservation trial to evaluate how the liquid emulsion performs across varying levels of existing road wear. The testing locations include N. 9th St. from W. Church St. to W. State St., W. South St. from S. 6th St. to Center St., E. South St. from Center St. to S. 3rd Ave., and S. 3rd Ave. from E. South St. to E. Anson St.
While the city successfully rehabilitated over 70 blocks of asphalt through traditional mill-and-overlay projects this year, municipal officials recognize that many streets still require maintenance, rehabilitation, and reconstruction. This preventive method seeks to complement existing programs by slowing asphalt deterioration on roads.
Traffic Disruptions and Operational Protocols
To minimize overall disruption to residents and motorists, work will proceed one lane at a time across all designated zones. Flaggers will maintain alternating single-lane traffic through active work areas, and on-street parking is strictly prohibited during treatment and street-sweeping operations according to temporarily posted signage.
Residents may experience brief periods lasting approximately 45 minutes of restricted driveway access while the liquid emulsion penetrates the road surface. To prevent sticking, spraying, and off-site tracking of residual emulsion, crews will spread a thin layer of sand over the treatment immediately after initial penetration. Traffic will resume once the sand is applied, and the material will remain on the street for approximately five days before sweepers collect and remove it.
| Operational Phase | Duration / Impact | Public Requirement |
|---|---|---|
| Liquid Emulsion Application | Approx. 45-minute driveway access restriction | Obey flagger directions; avoid driving on fresh treatment |
| Sand Layer Placement | Applied immediately following penetration | Restricted on-street parking; watch for posted signage |
Public Cooperation and Real-Time Scheduling Updates
City officials emphasize that public compliance is vital to the success of the asphalt preservation trial. Motorists, bicyclists, and pedestrians are asked to exercise extra caution in work zones, observe parking restrictions, obey flagger directions, and avoid driving through freshly treated areas until sand is spread to prevent tracking the emulsion onto personal property.
We appreciate the patience and cooperation of our residents and visitors as we explore new solutions to slow the deterioration and extend the life of Marshalltown’s roadways,
stated Marshalltown Public Works.
For real-time updates and scheduling adjustments regarding the November 4 rollout, residents can monitor the official Facebook page titled “City of Marshalltown – Local Government.”
