1.Add these to limitsdefinition.xml

<category name="Bridge"/>
<usage name="Parts"/>

2. Add below to mapgroupproto.xml

<group name="Bridge1" lootmax="3">
	<usage name="Parts" />
		<container name="loot" lootmax="3">
			<category name="Bridge"/>
		</container>
		<dispatch>
			<proxy type="GardenPlot" pos="0.000000 0 0.000000" rpy="0.0 0.0 0.0" />
			<proxy type="GardenPlot" pos="-0.003173 0 -2.660400" rpy="0.0 0.0 0.0" />
			<proxy type="GardenPlot" pos="-0.001464 0 2.587402" rpy="0.0 0.0 0.0" />
		</dispatch>
</group>

3. Updatde types.xml for garden plots

<type name="GardenPlot">
	<nominal>2500</nominal>
	<lifetime>1209600</lifetime>
	<restock>0</restock>
	<min>2500</min>
	<quantmin>-1</quantmin>
	<quantmax>-1</quantmax>
	<cost>100</cost>
	<flags count_in_cargo="0" count_in_hoarder="0" count_in_map="1" count_in_player="0" crafted="0" deloot="0"/>
	<category name="Bridge"/>
	<usage name="Parts"/>
</type>


4.Increae spawn initial to 2000 in globals.xml

<var name="SpawnInitial" type="0" value="2000"/>

5.Add generated/pre made co ords to mapgrouppos.xml between <map> and </map>