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Rainfall at City-Operated Rain Gauges
The City of Ann Arbor operates and maintains five tipping bucket rain gauges (5-min resolution) which are located at Barton Dam, South Industrial Hwy, Jackson Ave/Parklake... -
Street Trees
Location of City Street Trees -
Catch Basins
Locations of public, private, County Drain Commission, and University owned catch basins/inlets as part of the City's greater storm water network. -
Allen Creek Historic Map
Take a tour through along the original path of Allen Creek through this map and see historic photos from various points. You can learn more about the history of Allen CreekStreet Tree Pruning Map
Map of street tree pruning areas and pruning cycle years.Solid Waste Metrics
Graphs of the solid waste tonnages and percentages, broken out into organics, recycling, and trash. This aims to provide a picture of all residential and commercial waste...Stormwater Impervious Surfaces and Credits
This map shows the amount of impervious area by parcel that is used to determine stormwater utility fees, as well as what stormwater rate credits a particular site currently...Drinking Water Quality Measures Dashboard
Ann Arbor Water publishes sample results about the composition of the city's award-winning drinking water. See the mineral content of the water in nearly real-time.Drinking Water and Source Water 1,4-Dioxane Monitoring Dashboard
City drinking water comes from the Huron River and groundwater wells that are monitored regularly before and after treatment to ensure the drinking water remains safe from...Rain Gauges Dashboard
An interactive way to visualize rainfall data collected from the city's five tipping-bucket rain gauges, going back to 2013. The raw data behind this dashboard is also available...Floodway
"Regulatory Floodway" means the channel of a river or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without...Floodplain
That portion of the river valley, adjacent to the channel, which is built of sediments deposited during the present geological / climatic regime. Based on statistically derived...