Pennsylvania - Role: Structure
| Hare's Hill Road Bridge |
| Harmon's Covered Bridge |
| Harrington Covered Bridge |
| Harrison Avenue Bridge |
| Hartman Cider Press |
| Hassenplug Bridge |
| Hayes Bridge |
| Heikes Covered Bridge |
| Heirline Covered Bridge |
| Henniger Farm Covered Bridge |
| Henry Covered Bridge |
| Herr's Mill Covered Bridge |
| Hewitt Covered Bridge |
| High Bridge |
| Hillsgrove Covered Bridge |
| Himmel's Church Covered Bridge |
| Hogback Bridge |
| Hollingshead Covered Bridge No. 40 |
| Holme Avenue Bridge |
| Homestead High-Level Bridge |
| Horseshoe Curve |
| Horse Valley Bridge |
| Horsham-Montgomery Bridge |
| Howard Tunnel, Northern Central Railway |
| Hughes Covered Bridge |
| Ironstone Bridge |
| Jacks Mountain Covered Bridge |
| Jackson's Mill Covered Bridge |
| Jacksons Mill Covered Bridge |
| Jerome Street Bridge |
| John's Burnt Mill Bridge |
| Johnson Covered Bridge No. 28 |
| Johnstown Flood National Memorial |
| Johnstown Inclined Railway |
| Josiah Hess Covered Bridge No. 122 |
| Jud Christie Covered Bridge No. 95 |
| Kaufman's Distillery Covered Bridge |
| Keefer Covered Bridge No. 7 |
| Keefer Station Covered Bridge |
| Keller's Covered Bridge |
| Kennedy Bridge |
| King Covered Bridge |
| King's Bridge |
| Kintersburg Covered Bridge |
| Kise Mill Bridge |
| Knapp's Covered Bridge |
| Knecht's Mill Covered Bridge |
| Knisley, Dr., Covered Bridge |
| Knoebel, Lawrence L., Covered Bridge |
| Kochendefer Covered Bridge |
| Kramer Covered Bridge No. 113 |
| Kreiderville Covered Bridge |
| Kreigbaum Covered Bridge |
| Krepps Covered Bridge |
| Kutz's Mill Bridge |
| Lackawanna Iron and Coal Company Furnace |
| Lairdsville Covered Bridge |
| Landis Mill Covered Bridge |
| Larkin Covered Bridge |
| Laurel Hill Cemetery |
| Laurel Hill Furnace |
| Layton Bridge |
| Leaman Place Covered Bridge |
| Leap-the-Dips |
| Leatherman Covered Bridge |
| Lehigh Canal |
| Lehman's, Port Royal Covered Bridge |
| Lenape Bridge |
| Liberty Bridge |
| Lilly Bridge |
| Lime Valley Covered Bridge |
| Lindbergh Viaduct |
| Lippincott Covered Bridge |
| Little Gap Covered Bridge |
| Locomotive No. 6755 |
| Logan Mills Covered Bridge |
| Logan Square |
| Loux Covered Bridge |
| Lower Humbert Bridge |
| Lyle Covered Bridge |
| Manasses Guth Covered Bridge |
| Marion Bridge |
| Market Street Bridge |
| Market Street Bridge |
| Marshall's Bridge |
| Martin's Mill Covered Bridge |
| Martin's Mill Covered Bridge |
| Mays, Blaney Covered Bridge |
| McClay's Twin Bridge (East) |
| McClay's Twin Bridge (West) |
| McConnell's Mill Covered Bridge |
| McGees Mills Covered Bridge |
| McKees Rocks Bridge |
| Mercer's Mill Covered Bridge |
| Merrill Lock No. 6 |
| Meyers, Albertus L., Bridge |
| Mikado Freight Locomotive No. 520 |
| Millanville-Skinners Falls Bridge |
| Miller, Longdon L., Covered Bridge |
| Millmont Red Bridge |
Data from United States Park Service and Wikidata
