Lehigh Navigation

Lehigh Navigation
Name	Lehigh Navigation
Country	United States
State	Pennsylvania
Length	109 mi
Source	Cedar Creek near Summit Hill, Pennsylvania
Mouth	Delaware River
Basin cities	Allentown, Pennsylvania, Bethlehem, Pennsylvania, Easton, Pennsylvania
Tributaries	Lehigh River, Little Lehigh Creek, Monocacy Creek

Lehigh Navigation Lehigh Navigation refers to the historical and contemporary navigational system along the Lehigh watershed in eastern Pennsylvania that linked anthracite fields and industrial centers to the Delaware River and Atlantic trade routes. The system intersects with transport networks associated with the Lehigh River, the Lehigh Canal, regional railroads such as the Lehigh Valley Railroad and the Reading Railroad, and urban centers including Allentown, Pennsylvania, Bethlehem, Pennsylvania, and Easton, Pennsylvania. Its development involved engineers, financiers, and industrialists connected to projects like the Erie Canal, the Delaware and Hudson Canal, and the broader antebellum American canal era.

History

Early 19th-century initiatives to move anthracite coal from the Lehigh Coal Region to markets prompted construction of locks, dams, and towpaths comparable to works on the Erie Canal and Chesapeake and Ohio Canal. Prominent figures and entities such as Josiah White, Erskine Hazard, the Lehigh Coal & Navigation Company, and investors from Philadelphia and New York City financed canals, inclined planes, and aqueducts influenced by British canal engineers and industrialists involved with the Industrial Revolution. Conflicts and collaborations with competing carriers like the Delaware Canal and the Pennsylvania Canal shaped legal contests adjudicated in courts alongside disputes involving the United States Congress and Pennsylvania General Assembly. The rise of railroads, including the Lehigh Valley Railroad and the Central Railroad of New Jersey, led to decline in commercial barge traffic by the late 19th and early 20th centuries; subsequent 20th-century flood control work by the United States Army Corps of Engineers and conservation efforts by organizations akin to the National Park Service and state-level agencies altered the navigation landscape.

Geography and Course

The navigation corridor follows the Lehigh watershed through the Pocono Mountains and the Lehigh Gap between Blue Mountain and Second Mountain, threading towns such as Summit Hill, Pennsylvania, Jim Thorpe, Pennsylvania, Brockway, Pennsylvania and Catasauqua, Pennsylvania. It connects headwaters near Carbon County, Pennsylvania to the confluence with the Delaware River at Easton, Pennsylvania, passing waterworks, reservoirs, and tributaries including Quakertown Run, Bushkill Creek, and Jordan Creek. Geomorphology reflects glacial and fluvial processes shared with features like Lehigh Gorge State Park and regional basins near Allentown, Pennsylvania, with elevations and gradients that dictated location of locks, dams, and canals.

Navigation and Infrastructure

Historic locks, dams, and canalized reaches—part of enterprises such as the Lehigh Canal and the Lehigh Navigation Company's projects—were engineered with cast-iron and masonry works similar to those on canals like the Erie Canal and the Chesapeake and Delaware Canal. Intermodal connections involved terminals for the Lehigh Valley Railroad, the Reading Company, and the Central Railroad of New Jersey; industrial spurs served furnaces and factories tied to the Bethlehem Steel complex and ironworks in Catasauqua, Pennsylvania. Flood control structures and levees built by agencies including the United States Army Corps of Engineers and Pennsylvania water authorities coexist with modern highway crossings of the Pennsylvania Turnpike and interstates such as I-78 and Interstate 476. Preservation projects have stabilized historic canal locks and aqueducts with funding models used by the National Trust for Historic Preservation and state historical societies.

Ecology and Environment

Riparian habitats along the navigation corridor support species found in northeastern river systems, including populations monitored by agencies like the Pennsylvania Fish and Boat Commission and conservation non-profits analogous to The Nature Conservancy and PennFuture. Water quality has been affected historically by runoff from mining in the Lehigh Coal Region, industrial discharges from the Bethlehem Steel Corporation era, and urbanization in Allentown, Pennsylvania; remediation efforts mirror Superfund-style restoration practices and watershed management strategies implemented elsewhere on the Delaware River Basin Commission's watershed. Restoration priorities have included reestablishing native fish such as American shad and coldwater species managed under hatchery programs similar to those by the Pennsylvania Fish and Boat Commission. Wetlands and riparian buffers near Lehigh Gorge State Park and the Appalachian Trail corridor provide habitat connectivity for migratory birds tracked by institutions like the Audubon Society.

Economy and Transportation

The navigation system historically underpinned transport of anthracite coal, iron, and finished steel to markets in Philadelphia and New York City, connecting with coastal shipping via the Delaware River and Atlantic seaports such as the Port of Philadelphia. Economic shifts toward railroads involved carriers like Conrail and later regional operators; freight corridors remain part of the logistics network that includes access to the Port of New York and New Jersey via rail and highway links. Contemporary economic activities emphasize heritage tourism, light manufacturing, and distribution centers in the Lehigh Valley (Pennsylvania) that interact with labor markets in Allentown, Pennsylvania and Bethlehem, Pennsylvania and regional planning conducted by entities like the Lehigh Valley Planning Commission.

Recreation and Cultural Significance

Canal towpaths, restored locks, and river corridors support recreational paddling, angling, and multiuse trails managed by state parks and local conservancies such as those operating near Lehigh Gorge State Park, Nockamixon State Park, and municipal greenways in Easton, Pennsylvania. Cultural memory of navigation enterprises is preserved in museums and historic sites like the Lehigh Canal Museum, industrial heritage exhibits associated with Bethlehem Steel and the National Museum of Industrial History, and festival events in Allentown, Pennsylvania and Jim Thorpe, Pennsylvania. Literary and artistic works referencing the region connect to authors and artists interested in the Anthracite Region and American industrial heritage; academic research appears in journals focused on American industrial archaeology and regional history published by university presses such as Lehigh University Press and academic programs at Lehigh University and Moravian University.

Category:Rivers of Pennsylvania