Colusa County Bonus Segments
| Route | Beginning Post Mile* | Ending Post Mile* |
|---|---|---|
| 5 | R0.070 | R1.660 |
| 5 | R1.820 | R2.290 |
| 5 | R2.310 | R3.130 |
| 5 | R3.160 | R6.380 |
| 5 | R9.850 | R10.290 |
| 5 | R10.320 | R11.110 |
| 5 | R13.290 | R13.730 |
| 5 | R13.770 | R15.780 |
| 5 | R16.080 | R16.270 |
| 5 | R16.300 | R16.500 |
| 5 | R16.650 | R16.810 |
| 5 | R16.820 | R17.340 |
| 5 | R17.370 | R17.960 |
| 5 | R18.300 | R19.290 |
| 5 | R19.340 | R22.720 |
| 5 | R22.750 | R24.710 |
| 5 | R24.730 | R26.720 |
| 5 | R26.740 | R29.190 |
| 5 | R29.430 | R30.830 |
| 5 | R30.840 | R31.830 |
| 5 | R31.850 | R34.300 |
*Post miles are mile markers along the highway. They increase going northbound or eastbound starting at zero at the county line. Due to realignments over time there is not always a mile between post miles.
R -- First realignment