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Bill would let local governments request TDOT noise studies after maintenance trimming
Summary
Senate Bill 20‑27 lets local legislative bodies request TDOT sound studies when maintenance (for example, tree trimming) along state highways increases noise exposure; sponsors said the change clarifies permissibility and could allow locals to fund studies. The committee advanced the bill to finance.
Senator Lowe explained that Senate Bill 20‑27 creates permissibility for TDOT to conduct a sound study at the request of a local legislative body when maintenance operations, such as tree‑line trimming along a corridor, expose residents to new noise. Lowe said the bill defines terms including "Norris barrier" and makes clear that the key action is a local request; he noted TDOT previously told local officials it lacked the authority to undertake such studies absent road expansion.
Lowe said the fiscal note is approximately $16,000,000 and that the sponsor has prepared an amendment for Finance to allow local governments to pay for the study if TDOT does not; members pressed whether studies without a funded remedy are useful. Chairman Bridal and others recounted experience on I‑40 where tree trimming increased noise and asked whether a study that only documents a problem but does not produce mitigation would be worthwhile. Lowe replied that the bill is intended to identify problems so locals and TDOT can develop appropriate solutions; the committee agreed to pass the measure to Finance and Ways & Means for amendment.
The discussion left implementation options open; the bill clarifies a process for local requests and contemplates local cost participation if necessary.
