Photos of the prototype and drawings that were used to build the model must also be included.
BRIDGE for a country road
To build the bridge I:
- followed a drawing from the Kalmbach book “Bridges and Trestles”
- Cut and fit stripwood with a NWSL chopper
- Scratchbuild and weathered
First I weathered all wood parts with a wash of diluted India ink.
After the weathering had dried I cut the bridge planks to size and placed them side-by-side on a piece of tape glue.
Then I cut the supporting beams to length and glued them equally spaced to the planks.
Then I cut the beams for the triangular bridge truss, bevelled the ends and glued the pieces together in a jig.
After the bridge assembly was dry I glued a plank 16 scale inches longer than the bridge planks on either side of the bridge for support of the truss assembly.
I cut the kingpost beam to length and glued it in the center of the bridge.
After the truss assembly was dry, I glued both parts to the support planks and centered everything over the kingpost.
The bridge is held together with metal rods and stringers.
I simulated the different iron straps and plates with small pieces of strip styrene
I drilled appropriate holes and threaded brass wire through the holes to simulate the different rods as per the drawing.
To visualize the bridge, I mounted it on a small display. I cut 2 pieces of wood for the abutments and fixed Faller Decorative Sheets “Natural Stone” to theses abutments to represent the random stone pattern. Then I shaped pieces of Styrofoam to represent the sloped terrain. I covered the scene with different scenery materials. A small riverbed adds to the purpose of the bridge.
Northeastern Scale Lumber 3014 2 x 8
3041 6 x 8
3034 4 x 12
3043 6 x 12
Detail Associates 2507 0.015” brass wire
2505 0.010” brass wire
2506 0.0125” brass wire
Woodland Scenics Fine turf
Faller 170802 Decorative Sheets “Natural Stone”
Miscellaneous strip styrene pieces
Tile mortar for ground cover
Sifted Sand and different sizes of gravel
Two component epoxy for the water
This bridge was located somewhere in Ohio. These wood bridges of the kingpost truss type were common years ago in rural areas but are rapidly becoming scarce because of age, fires, floods and ice jams.
- FINISH AND LETTERING
I treated the wood stock with a wash of diluted India ink. I also punched nail holes into the planks using a punching wheel.
The bridge is completely scratchbuild using different sizes of scale lumber and brass wire.