5 bridges with vertical clearance data on 99 in Oregon. Lowest: 149.9ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 149.9ft | Milwaukie Ave | Hwy 081 | 3.0 Mi Se Portland Cc | 1968 | Map |
| 152.6ft | Ne Mlk Blvd | Hwy 2 & Uprr | 0.1 Mi E Portland Cc | 1908 | Map |
| 174.2ft | Tacoma Blvd. | 99E Or 81 | 0.2 Mi N Milwaukie Cl | 1992 | Map |
| 220.1ft | Tacoma Blvd. | Uprr | 0.06 Mi E Of 99E (Mp 4.4) | 1992 | Map |
| 345.1ft | Or 99W/Holladay Rp | B-146 Steel Br Rp X Uprr | Ne End Of Steel Bridge | 1952 | Map |