300
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STABILIZED SUBGRADE, BASE, & SHOULDERS
| 301 | SUBGRADE MODIFICATION |
| 302 | LIME TREATED SUBGRADE |
| 303 | CEMENT OR FLY ASH TREATED SUBGRADE |
| 304 | CRUSHED STONE SUBGRADE |
| 305 | AGGREGATE BASE AND AGGREGATE SHOULDERS |
| 306 | CEMENT TREATED BASE |
| 15-03001 - CEMENT TREATED BASE | |
| 307 | GRANULAR BASE |
| 308 | GEOSYNTHETIC REINFORCED BASE |