No public street-tree inventory has been published for Speedway, so species counts are UNVERIFIED. Because the residential core finished building out by the mid-1950s and has barely been rebuilt since, much of the yard canopy is likely of comparable age and large enough to close over narrow streets and 40-to-50-foot lots — an inference from build-out dates, not a measured finding. The exception is Main Street, where a town streetscape reconstruction installed all-new landscaping, so those trees are recent. That context matters for silver maple: silver maple is the most over-planted large tree in indiana's street tree population — roughly 18% statewide and about 14% of indianapolis street trees — because it was the default fast shade tree in subdivisions built from the 1950s through the 1970s. Removing a silver maple around Speedway runs roughly $400–$1,900, and in Old Speedway City (Speedway Historic District), Speedway Manor and Main Street corridor access is usually what decides where in that range you land.
What's actually growing in Speedway
No public street-tree inventory has been published for Speedway, so species counts are UNVERIFIED. Because the residential core finished building out by the mid-1950s and has barely been rebuilt since, much of the yard canopy is likely of comparable age and large enough to close over narrow streets and 40-to-50-foot lots — an inference from build-out dates, not a measured finding. The exception is Main Street, where a town streetscape reconstruction installed all-new landscaping, so those trees are recent.
Speedway's housing stock, and what it means for tree size
Speedway was laid out in 1912 as a residential suburb by Indianapolis Motor Speedway founders Carl Fisher, James Allison, Frank Wheeler and Arthur Newby — a "horseless city" for auto-industry workers. The Speedway Historic District (41.6 acres, 304 contributing buildings, NRHP September 15, 2005) built out from about 1912 to 1955 in Foursquare and Craftsman bungalow styles; the town then more than doubled, from 5,498 people in 1950 to 14,523 in 1970, and new single-family construction has been close to nil since the 1990s.
What's specific to silver maple
This is the sewer and sidewalk tree. Its roots are shallow, vigorous, and notorious for invading drain and sewer laterals, and in central Indiana's compacted clay they stay in the top few inches because that is where the oxygen is — so they lift driveways, crack sidewalk panels, and surface across lawns until mowing becomes impossible. Standard clearance guidance is about 40 ft from structures, walks, drives, and sewer lines, which essentially no subdivision lot ever gave them.
Marion County rules
Indiana has no statewide tree removal permit, and no Speedway ordinance requiring a permit to remove a tree on private property is documented in the sources reviewed. Important caveat: Speedway is an excluded town under Unigov and maintains its own municipal code separate from Indianapolis, and the full Speedway code text could not be retrieved, so the exact local text is UNVERIFIED. Marion County's zoning ordinance does state a purpose of protecting and enhancing tree cover and the countywide code carries a "Trees and Flora" chapter, but the section citations are unconfirmed and whether they bind Speedway is unconfirmed. Call the Speedway Street Department before touching anything near the street line.