Roadways, streets, pathways and parking lots shall be paved in accordance with the most current version of the Idaho standards for public works construction (ISPWC). Table 2 of this section provides minimum pavement thicknesses; the city engineer can require greater thicknesses if he/she deems it is required based on geotechnical information provided.
TABLE 2
Road Type | Asphalt Pavement | Base Course Aggregate1 | Subbase Course Aggregate2 |
Road Type | Asphalt Pavement | Base Course Aggregate1 | Subbase Course Aggregate2 |
Arterial | 4.0 | 6.0 | 12.0 |
Collector | 4.0 | 6.0 | 12.0 |
Residential | 2.5 | 4.0 | 6.0 |
Private A | 2.5 | 4.0 | 6.0 |
Private B | 2.5 | 4.0 | 6.0 |
Private C | 2.5 | 4.0 | 6.0 |
Parking lots | 2.5 | 4.0 | 8.0 |
Pathway | 2.0 | 4.0 | 6.0 |
Notes:
1. Base course aggregate is intended to be a 3/4-inch minus crushed aggregate mix.
2. Subbase course aggregate should be a 4-inch maximum mix that is not required to be crushed. Both are defined in the ISPWC.
(Ord. 382, 10-25-2006)