Built 1830

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Aqueduct Bridge (1st) (Washington, District of Columbia)
Built 1833-43, replaced 1868
Lost Timber stringer bridge over Potomac on Canal
Replaced by new bridge

Bow Ridge Canal Tunnel (Westmoreland County, Pennsylvania)
Tunnel
Closed to all traffic

Collegeville Road Bridge in Skippack Pennsylvania (Montgomery County, Pennsylvania)
Built 1830; rehabilitated 1970 CA; 1989
Stone arch bridge over a branch Skippack Creek on PA 4014 (Collegeville Road) in Skippack
Open to traffic

Gratiot Bridge (Muskingum County, Ohio)
Built 1830 by John Carnahen (?)
Stone arch bridge over Valley Run on National Road (TR 26)
Open to traffic

John Carnahen Bridge (Muskingum County, Ohio)
Built 1830 by John Carnahen
Stone arch bridge over a branch of Timber Run on National Road (CR 420)
Open to traffic

Ohio Canal OH 335 Bridge (Pike County, Ohio)
Built 1830-31 by the Ohio Canal Commission
Stone arch bridge over Ohio Canal on OH 335
Open to traffic

Old Galena Trail Stone Arch Bridge (Carroll County, Illinois)
Built 1830, a historical marker nearby mentions Abraham Lincoln's military encampment nearby.
Bridge over Stream on Old Galena Trail and Coach Rd
Abandoned and falling apart.

Plane Hill Road Aquaduct (Warren County, New Jersey)
This is the Inclined Plane 7 West aquaduct that carried the Morris Canal over Pohatcong Creek at the feeder base of the inclined plane
Stone arch bridge over Pohatcong Creek on Plane Hill Road
Open to traffic

Rishel Covered Bridge 38-49-05 (Northumberland County, Pennsylvania)
Built 1830
Covered bridge over Chillisquaque Creek on Covered Bridge Road
Open to traffic

Rome Ferry (Smith County, Tennessee)
Established 1830
Abandoned ferry across Cumberland River on Rome Road
Derelict/abandoned

Spring Mill Park Aqueduct (Lawrence County, Indiana)
Built 1830's to run water downhill from Hamer Cave Spring
Timber stringer bridge over Land on Hamer Cave Spring to Mill
Open to traffic