This is a list of current bridges and other crossings of the Allegheny River starting from Pittsburgh, Pennsylvania, where it joins the Monongahela to form the Ohio River.
| Crossing | Carries | Location | Coordinates |
|---|---|---|---|
| Quaker Bridge (demolished) | Coldspring | Electric lines still cross river at the site. | |
| Kinzua High Level Bridge | Red House and Coldspring | ||
| Allegheny Reservation Bridge (closed to all traffic) | (old) | Red House and Allegheny Indian Reservation | |
| Cornplanter Bridge | Salamanca | ||
| Main Street Bridge | Salamanca | ||
| Clinton Street Bridge | Salamanca | ||
| Riverside Junction Railroad Bridge | Buffalo and Pittsburgh Railroad Salamanca line | Great Valley and Carrollton | |
| Old Riverside Junction Railroad Bridge (abandoned) | former Buffalo and Pittsburgh Railroad Salamanca line | ||
| Cattaraugus County Veterans Memorial Bridge | |||
| Bemus Bridge | |||
| Nine Mile Road Bridge (abandoned) | Allegeny and Carrollton | ||
| Allegany Bridge | Allegeny and Olean | ||
| First Street Bridge | |||
| South Union Street- Veterans Memorial Bridge | Olean | ||
| Steam Valley Bridge | Portville | ||
| Gleason Hollow Bridge | Portville | ||
| Crossing | Carries | Location | Coordinates |
|---|---|---|---|
| Kendall Bridge | Eldred and Eldred Township | ||
| Larabee Bridge | Eldred Township | ||
| WNY&P Bridge | Western New York and Pennsylvania Railroad | ||
| Champlain Hill Bridge | Annin Township | ||
| Richard Lilli Bridge | Port Allegany and Liberty Township | ||
| West Mill Street Bridge | |||
| Emporium Bridge | |||
| South Turtle Road Bridge | Liberty Township | ||
| Kim Hill Road Bridge | Roulette Township | ||
| Pomeroy Street Bridge | |||
| Maple Street Bridge | |||
| Celaschi Covered Bridge | Eulalia Township | ||
| Olastead Road Bridge | |||
| Toles Hollow Bridge | Coudersport and Eulalia Township | ||
| Chestnut Street Bridge | Coudersport | ||
| Coudersport Main Street Bridge | |||
| Allegheny Avenue Bridge | |||
| Second Street Bridge | |||
| Fourth Street Bridge (abandoned) | |||
| Seventh Street Bridge | |||
| Avenue A Bridge | Coudersport and Eulalia Township | ||
| Prosser Hollow Bridge | Eulalia Township and Sweden Township | ||
| Colesburg Bridge | Sweden Township | ||
| PA 49 Bridge | Sweden Township and Ulysses Township | ||