Low clearance bridges in Allegheny County, Pennsylvania
42 spots where an interstate or US highway in Allegheny County has less than 16 ft of clearance, lowest first. The lowest is 13 ft 8 in on I-376, Birmingham Bridge. 4 are under 14 ft and 30 under 15 ft.
Posted signs and your permit come first. These are the clearances Pennsylvania reported to the federal National Bridge Inventory in 2025. Repaving, snow and new work can lower them.
| Clearance | Where | Highway |
|---|---|---|
| 13 ft 8 in | Under Ramp T · Birmingham Bridge · Map | I-376 |
| 13 ft 8 in | Under Golden Mile HW · Over SR 0022 · Map | US-22 |
| 13 ft 10 in | Over Ft Duq BRDG NB Allegh R · Fort Duquesne Bridge · Map | I-279 |
| 13 ft 10 in | Under Penn Lincoln Parkway · @ Int W / SR 0019 · Map | US-19 |
| 14 ft 0 in | Over I-279 NB Ramp D Allgy Ri · Fort Duquesne Bridge · Map | I-279 |
| 14 ft 0 in | Under Greensburg Pike · Greensburg Pike over I-376 · Map | I-376 |
| 14 ft 2 in | Over Point St Park Mon River · Fort Pitt Bridge · Map | I-279 |
| 14 ft 2 in | Under Greentree Road · Greentree Exit · Map | I-376 |
| 14 ft 2 in | Over Mon R Norfolk Southern Railroad SR 0837 · Fort Pitt Bridge · Map | I-376 |
| 14 ft 2 in | Under Ramp V · Birmingham Bridge · Map | I-376 |
| 14 ft 2 in | Under McKnight Road · 200 North of SR 4086 · Map | US-19 |
| 14 ft 3 in | Under Ramp C (Fort Pitt) · Fort Pitt Bridge · Map | I-376 |
| 14 ft 4 in | Under SR 0051 SB · 400S.W.OF Ft. Pitt Tunnel · Map | I-376 |
| 14 ft 4 in | Over LR1039 RP A(F) Mon River · Fort Pitt Bridge · Map | I-376 |
| 14 ft 4 in | Under Mall Entrance · Monroeville Mall Overpass · Map | US-22 Business |
| 14 ft 5 in | Over Brady Street & Pedestrian Trail · Brady Street · Map | I-376 |
| 14 ft 6 in | Under Pa Turnpike Ramps B & C · Pittsburgh Interchange · Map | I-76 |
| 14 ft 6 in | Under Perrysville Avenue RP · Perrysville Interchange · Map | I-279 |
| 14 ft 6 in | Under Ramp A_d · Squirrel Hill Interchange · Map | I-376 |
| 14 ft 6 in | Under Ramp A · At Int W / Grant Street · Map | I-376 |
| 14 ft 6 in | Over Ohio River CSX Railroad · West End Bridge · Map | US-19 |
| 14 ft 7 in | Under Stanwix Street · 106 Stanwix St Bridge · Map | I-376 |
| 14 ft 7 in | Under Ramp D Road · I-376 Wilkinsburg Ramp D · Map | I-376 |
| 14 ft 7 in | Under Prkwy Center Ramp · 0.4 mi S.E. of SR 0121 · Map | I-376 |
| 14 ft 8 in | Under Wood Street · 120 Wood Street Bridge · Map | I-376 |
| 14 ft 9 in | Over Brady Street · Brady St. Interchange · Map | I-376 |
| 14 ft 9 in | Under Rosslyn Road · Rosslyn Farms Exit · Map | I-376 |
| 14 ft 9 in | Under RT 0022 EB WB · Over US 30 & TR 978 · Map | US-30 |
| 14 ft 11 in | Under LR02176 SR 2054 · Near Pittsburgh Interchange · Map | I-76 |
| 14 ft 11 in | Under Ramp E & H · Turnpk RMP. Eh O / SR2048 · Map | US-22 Business |
| 15 ft 1 in | Over Various City Streets · Fort Duquesne Bridge · Map | I-279 |
| 15 ft 1 in | Under SR 22 / 30 · SR 0022 / 30 over SR 0376 · Map | I-376 |
| 15 ft 3 in | Under Franklin Road · 500 Ft N of Warrendale Road · Map | I-76 |
| 15 ft 3 in | Under Garden City Drive · Garden City DR. O / I-376 · Map | I-376 |
| 15 ft 4 in | Under SR 0008 LR 72 · Butler Valley Interchange · Map | I-76 |
| 15 ft 5 in | Under East Ohio Street · E Ohio St. under SR 0579 · Map | I-279 |
| 15 ft 8 in | Under Chestnut Street · Chestnut O / Parkway East · Map | I-376 |
| 15 ft 8 in | Under Smithfield Street · Smithfield St Bridge · Map | I-376 |
| 15 ft 8 in | Under 8065 Ramp F · Birmingham Bridge · Map | I-376 |
| 15 ft 9 in | Under Raymond Shafer Highway · I-79 SB over Pa Turnpike · Map | I-76 |
| 15 ft 9 in | Under Ramp D · Carnegie Interchange · Map | I-376 |
| 15 ft 10 in | Under SR 0065 SB · Fort Duquesne Bridge · Map | I-279 |