Tag: Long Truss

Category: Structure design

Patented in 1830 by US Army engineer Stephen Harriman Long, the Long truss marked a turning point in American bridge building. It was the first US timber-truss design grounded in mathematical analysis rather than craft tradition, pioneering the concept of prestressing and introducing pre-fabricated members and adjustable wedges that reduced labor and simplified field repairs. By eliminating the need for heavy masonry arches, the Long truss advanced a more economical, adaptable structural system that helped shift the nation toward scientifically designed bridges. Widely used for early railroad and highway spans across the eastern United States, few examples survive today, though its influence on modern structural engineering remains significant. - AsNotedIn

---

Places

Place	Type	AsNotedIn	Locale
Place	Type	AsNotedIn	Locale
Eldean Covered Bridge		NRHP ABT US NHL	Troy, OH
Lockington Covered Bridge		NRHP	Lockington
Harra Covered Bridge		NRHP	Watertown
Hune Covered Bridge		NRHP	Dart
Root Covered Bridge		NRHP	Decaturville
Sarvis Fork Covered Bridge		NRHP	Sandyville
Staats Mill Covered Bridge		NRHP	Staats Mill
Hokes Mill Covered Bridge		NRHP	Lewisburg
Low's Bridge			Sangerville
Brownsville Covered Bridge		US NRHPf	Columbus
Rowell's Covered Bridge		NRHP ABT	Hopkinton, NH
Bissell Bridge		NRHP	Charlemont

---

People

Last Name	Name	AsNotedIn
Long:	Stephen Harriman Long