Previous TN 3 Byp's:
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TN 3 Byp #1: Appears on topos and aerials between 1951-54 (appeared in route log starting 1958) as a new bypass around the south and east of Union City.
About 1960, this TN 3 Byp was renumbered as mainline TN 3 when the new TN 3 Byp was built around the west and north of Union City. Today it is part of TN 184.
TN 3 Byp #2: Appears in 1959 or 1960 as new construction around the west and north of Dyersburg.
In 1983, TN 3 Byp became part of mainline TN 3.

TN 3 Byp around Dyersburg
1964 Official
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US 51/TN 3 moved to Dyersburg Bypass
1986 Official
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In 1983, TN 3 Byp became mainline TN 3.
TN 3 Byp #3: Appears about 1960 as new construction around the west and north of Union City.
In 1983, TN 3 Byp became mainline TN 3.
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