Rail-and-trail

Appalachian Trail/CSX - Potomac River Bridge (Jefferson County, West Virginia)
Built 1894, was mainline until 1931 bridge built to the north; damaged in derailment 2019
Through truss bridge over Potomac River and old C&O Canal in Harpers Ferry on CSX Railroad and Appalachian Trail
Closed for repair after derailment

Cherry Avenue Bridge (Cook County, Illinois)
Built 1901
Bridge over North Branch Canal on Cherry Avenue, former Chicago/Milwaukee/St. Paul Railroad
Open to traffic from trains and pedestrains

Chichaqua Valley Trail - Clear Creek Bridge (Jasper County, Iowa)
Pony/through plate girder bridge over Clear Creek on Chichaqua Valley Trail
Open to traffic

CP - 31st Avenue Bridge (Hennepin County, Minnesota)
Built 1893
Deck plate girder bridge over 31st Avenue on Canadian Pacific Railway/Midtown Greenway Trail
Open to traffic

CP - 36th Avenue Bridge (Hennepin County, Minnesota)
Built 1913, Two tracks converted to trail use ca. 2009
Slab bridge over 36th Ave S on Canadian Pacific Railway/Midtown Greenway
Open to traffic

CSX/Major Taylor Trail - Little Calumet River Bridge (Cook County, Illinois)
Warren through truss bridge over Little Calumet River on CSX RR Industial Spur (former Penn Central)/Major Taylor bike trail
Open

Heritage Rail Trail - Access Bridge (York County, Pennsylvania)
Slab bridge on railtrail
Open to bicyclists, horseback, and pedestrians on trail side. The rail is clear and allows for rail bikes, speeders, and hobby-builds. Once a year the Steam into History Excursions run across this bridge.

Heritage Rail Trail - Days Mill Crossing (York County, Pennsylvania)
Slab bridge over Codorus Creek on Heritage Rail-Trail
Open to bicyclists, horseback, and pedestrians on trail side. The rail is clear and allows for rail bikes, speeders, and hobby-builds. Once a year the Steam into History Excursions run across this bridge.

Heritage Rail Trail - Glen Brook Court Overpass (York County, Pennsylvania)
Built 1871
Stone arch bridge over Glen Brook Court on Heritage Rail Trail
Open to bicyclists, horseback, and pedestrians on trail side. The rail is now home to the Steam into History Excursions on the weekends from April to October.

Heritage Rail Trail - Howard Tunnel (York County, Pennsylvania)
Built 1836, Rebuilt in 1865
Tunnel on York Heritage Trail & Northern Central Railway
Open to bicyclists, horseback, and pedestrians on trail side. The rail is clear and allows for rail bikes, speeders, and hobby-builds. Once a year the Steam into History Excursions runs through this tunnel.

Heritage Rail Trail - Indian Rock Dam Road Overpass (York County, Pennsylvania)
Built 1910
Deck plate girder bridge over Rt 182 on Heritage Rail-Trail
Open to bicyclists, horseback, and pedestrians on trail side. The rail is clear and allows for rail bikes, speeders, and hobby-builds. Once a year the Steam into History Excursions run across this bridge.

Heritage Rail Trail - Pleasant Valley Road Overpass (York County, Pennsylvania)
Built in 1871 by Northern Central Railway, later Pennsylvania Railroad; abandoned to rail service 1972, acquired by county for rail and rail trail
Closed-spandrel brick-and-limestone arch bridge over Pleasant Valley Road (SR 616) on Heritage Rail Trail
Open to bicyclists, horseback, and pedestrians on trail side. The rail is now home to the Steam into History Excursions on the weekends from April to October.

Heritage Rail Trail - South Codorus Creek Crossing (York County, Pennsylvania)
Deck girder bridge over Codorous Creek on York Heritage Railtrail
Open to bicyclists, horseback, and pedestrians on trail side. The rail is clear and allows for rail bikes, speeders, and hobby-builds. Once a year the Steam into History Excursions run across this bridge.

Heritage Rail Trail - Twin Arch Bridge (York County, Pennsylvania)
Bridge over Twin Arch Road, East Branch Codorus Creek on Heritage Rail Trail County Park
Open to bicyclists, horseback, and pedestrians on trail side. The rail is clear and allows for rail bikes, speeders, and hobby-builds. Once a year the Steam into History Excursions run across this bridge.

HVSR - Hocking River Bridge #3 (Athens County, Ohio)
Warren through truss bridge over Hocking River on Railroad (HVSR)/Hockhocking-Adena Bikeway
Open to traffic

Muleshoe Curve Bridge (Blair County, Pennsylvania)
Built 1902; rail line abandoned by Conrail in 1981
Stone arch bridge over Old Route 22 on 6 to 10 trail
Open to pedestrians only

NCRY - Main Street Overpass/Heritage Rail Trail (York County, Pennsylvania)
Built 1900
Pony player girder bridge over Main Street (PA-214) on Northern Central Railway/Heritage Rail Trail
Open to bicyclists, horseback, and pedestrians on trail side. The rail is now home to the Steam into History Excursions on the weekends from April to October.

Pecatonica Prairie Trail - Coolidge Creek Arch (Winnebago County, Illinois)
Built Ca. 1887
Stone arch bridge over Coolidge Creek on Pecatonica Prairie Trail
Open to traffic

RBMN - Schuylkill River Bridge (Schuylkill County, Pennsylvania)
Pony/through plate girder bridge over Schuylkill River on Reading Blue Mountain & Northern Railroad & Appalachian Trail
Open to traffic

SMART - Cal Park Hill Tunnel (Marin County, California)
Built 1884, closed 1978 , opened to pedestrains 2010.
Tunnel on Pedestrian Pathway/SMART
Open to pedestrians, commuter rail traffic planned

WMSR/GAP - Alt US 40 Overpass (Allegany County, Maryland)
Built 1910 ca
Through truss bridge over Alt US 40 on WMRR
Open to trains and pedestrians

WMSR/GAP - Brush Tunnel (Allegany County, Maryland)
Tunnel on Western Maryland Scenic Railroad & Great Allegheny Passage
Open to traffic