13 bridges with vertical clearance data on I-66 in District of Columbia. Lowest: 126.6ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 126.6ft | Tr Bridge(Ramp K) | Inner Loop | Rp K Over Inner Loop | 1964 | Map |
| 128.6ft | Tr Bridge(Ramp A) | Inner Loop | Tr Br Ramp&Inner Loop | 1964 | Map |
| 128.9ft | T.R. Bridge Ramp | Inner Loop | Near 23Rd & Kenn Cent | 1964 | Map |
| 133.2ft | Ramp E To Gw Pkwy | Little River | T Roosevelt Br Tp Gw Pkwy | 1964 | Map |
| 136.2ft | Ramp 1 Whitehurst | I-66 To W.H. Frwy. | Whitehurst At Rock Creek | 1964 | Map |
| 140.7ft | Tr Bridge(Ramp F) | Inner Loop | Tr Bridge &Amp; Inner Loo | 1964 | Map |
| 143.0ft | I-66 | Little River & G.W.P | T Roosevelt Br-Little R | 1964 | Map |
| 145.3ft | Ramp D To Rt 50 | Little R & Gw Pkwy | T Roosevelt Br. To Rt. 50 | 1964 | Map |
| 145.7ft | Tr Bridge(Rampc) | Inner Loop | Tr Br Ramp C & Inner | 1964 | Map |
| 148.3ft | Ramp To I-66 | Potomac Pkwy & 27Th | Whitehurst At Rock Creek | 1998 | Map |
| 157.5ft | T. Roosevelt Brid | Pot River & Potomac | Tr Bridge-Potomac River | 1964 | Map |
| 157.5ft | Tr Bridge(Rps A&Am | Ramps K & A-A | T Roosevelt Bridge Rmps | 1964 | Map |
| 172.9ft | Us 50 Ramp | Little River & Gw Pk | T Roosevelt Br. From Us50 | 1964 | Map |