Design Manual
Locate the entire manual by going to the documents.iowa.gov.
Design Manual Accordion
3A | Roadways | |
|---|---|---|
| 3A-1...................Typical Roadway Sections | ||
3C | Shoulders and Curbs | |
| 3C-2...................Curbs | ||
| 3C-3...................Shoulder Cross Slope | ||
| 3C-3.5................Shoulder Design Changes | ||
| 3C-4...................Shoulder Design | ||
| 3C-5...................Shoulder and Centerline Rumble Strips | ||
| 3C-6...................Safety Edge | ||
| 3C-7...................Shoulder Design for New and Existing Bridge Staging | ||
| 3C-10...................Earth Shoulder Construction and Earth Shoulder Finishing | ||
3D | Subgrade and Subbase | |
| 3D-1...................Subgrade Slopes | ||
| 3D-2...................Grading on Multi-Year Four Lane Divided Roadway Projects | ||
| 3D-3...................Pavement Drainage and Strength Layers | ||
3E | Medians | |
| 3E-1....................Medians | ||
| 3E-2....................Median Crossings | ||
| 3E-3....................Temporary Median Crossovers | ||
3F | Foreslopes | |
| 3F-2....................Foreslopes at Drainage Structures | ||
| 3F-3....................Transverse Slope Adjustment at Entrances and Safety Ramps | ||
3G | Ditches | |
| 3G-1...................Roadway Ditches | ||
| 3G-2...................Intercepting Ditches | ||
3J | Berms and Benches | |
| 3J-1.....................Berms and Benches | ||
3K | Access Points | |
| 3K-2...................Access Design | ||