Streets & Roads Division Projects
2017 CHIP SEAL PROJECT- MONDAY JULY 17, 2017
The Pueblo West Metropolitan District in conjunction with Pueblo County will begin the 2017 chip project Monday July 17, 2017.
Chip seal is an asphalt surface treatment used to protect and extend the life of existing pavement. Roads will remain open, but the public is asked to watch for flaggers and expect delays.
The Chip Seal Process:
1. First, asphalt is mixed with about 30% water. This emulsified mixture is then applied to the road using a special spray truck. As soon as the liquid asphalt meets the road surface, the water starts to evaporate.
2. Immediately after spraying this asphalt, a layer of crushed gravel is applied by a spreader. The gravel (or chips) has a maximum size of 1/2 inch.
3. Next, the gravel is compacted and embedded into the asphalt by rubber-tired rollers. However, even with the high pressure rolling, some gravel will not become embedded in the asphalt.
4. The new chip-seal surface can require up to two days to cure properly. Hot, dry weather helps speed up this process in which all of the remaining water in the emulsion evaporates and the asphalt hardens. Traffic can pass over this surface at reduced speeds during the curing process.
5. After curing, the loose gravel is swept off the surface. This may take several sweepings.
As with any roadway construction project, motorists must exercise caution. Reduced speeds ensure your safety and minimize the chance of damaging your vehicle. At reduces speeds, vehicles should not be damaged by flying rocks.
Traffic moving at higher speeds can create dust, limit visibility, and cause an inconvenience to local residents. Increased speeds can also cause gravel to break loose from a fresh chip seal creating the risk of flying rock. Rocks thrown from your tires may crack or break a windshield. Flying rocks might also injure pedestrians, bicycle riders, or motorcyclists.
By driving at the reduced speeds, you protect your vehicle from unnecessary damage that can be caused by the sprayed asphalt and loose gravel. The slower speed also decreases the chance of damage from rocks which may be thrown up from other vehicles.
We appreciate your patience:
Throughout the Summer, and Fall, we will be working on projects throughout the district which may cause some traffic delays. Please be patient. Traveling at the posted construction speed limit in construction zones will ensure your safety and the safety of the workers. It's also the law. Traffic fines are doubled in construction zones.