To create a Balsa Wood bridge or other wood structures, use a SolidWorks Library Feature, a SolidWorks 3D Sketch and SolidWorks Weldments, Here are
Cudacountry Bridge
Advice to improve my wooden bridge? : r/StructuralEngineering
Arch Truss Bridge : 7 Steps (with Pictures) - Instructables
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Description Resources Description Competitive project with regional and national contests – 360 pieces Balsa wood for competitive TSA events 24
Bridge Building Kit - 1/8 x 1/8 x 24
Balsa Wood Bridge
BUILDING STRUCTURES PROJECT 1 FETTUCCINE TRUSS BRIDGE
Drawings LudemannEngineering
SolidWorks-Tutorial-Design Bridge with Weldments Tools
Cudacountry Bridge
PDF) Structural optimization of simple span bridge by adding truss structure