Drainage summary
Etna town, Penobscot County, Maine. Population: 1,238. Land area: 24.7 sq mi. Puddles, ditches, stormwater and washed-out shoulders.
Recorded local data
Population1,238Source: census_popest_cousub. Population year: 2024.
Land area24.7 sq miSource: census_gazetteer. Geography year: 2023. Water area is excluded.
Derived from recorded data
Residents per square mile50.1Population / land area. Population and geography may refer to different years.
Model scenario
Stormwater segments~ 10 miScenario: (land area in square miles x 2.2 (assumed road miles per square mile)) x 0.18. Coefficients are assumptions, not locally measured rates. Not a verified object count.
Ditches and channels~ 9Scenario: (square root of land area in square miles) x 1.8. Coefficients are assumptions, not locally measured rates. Not a verified object count.
Road shoulders~ 7 miScenario: (land area in square miles x 2.2 (assumed road miles per square mile)) x 0.12. Coefficients are assumptions, not locally measured rates. Not a verified object count.
Model values are scenarios, not an inventory or evidence that a service exists. Queues, applications, incidents, service users and unsafe homes are not inferred from population. Missing data does not mean zero.