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Truss Bridge Assembly
Positioning the bridge continued
If the bridge will not be used as a lift out section it can be securely fastened to the bridge piers
using the 4 Phillips head screws included in the poly bag. The poly bag also includes six wire
jumpers, used to create a wired connection between the piers and the rails on the bridge.
Before securing the piers to the bridge we recommend that you connect the wire jumpers to
the underside of the pier first. To do this remove the bridge mounting top pier half from the
stack of piers (for ease of access) and place one red wire jumper on the center rail tab and two
black wire jumpers on each outside rail tab, see figure 13 below.
Black wire
Figure 13. Wiring the bridge top pier half
Route the three wires through the center hole in the top pier half. Turn the bridge up-side-
down and position the pier on the bridge, aligning the rail and the feet of the bridge. Be sure to
route the three wires through the hole in the center of the underside of the bridge, See figure
14. Using two of the four Phillips head screws in the poly bag insert the screws in the hole of
the bridge foot, refer to figure 15 on page 13. Securely tighten the screws to firmly mount the
pier to the foot of the bridge.
Black wire
Figure 14. Wiring the bridge
12
Black wire
Red wire
Black wire
Red wire
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