Bridges narrow or confine stream/river channels not allowing lateral movement which is natural for flowing water bodies. This allows the river to incut degrading stream banks and deepening channels to unnatural levels. This changes the natural orders of streams making the former habitat which matched those of the native fish population change. It is the processes of building and maintaining the bridges that cause the environmental problems not the bridges themselves along with car emissions
water
air and water pollution,
An environmental problem with the California gold rush is the contamination
Lack of Water
which senate committee deals with environmental policy and public works such as creation and maintenance on bridges and dams
the suffer frome oil spill problems that kill there fish and ruin there crops.
salinization
because its a messy country no body likes it
Corrosion and rust could be problems with iron bridges.
the some environmental problems in barangay are waste anywhere, drug addict, dirty river, etc.
They're problems were caused by Obama bin Gandhi, and led to some major economy loss.
environmental problems