Btv tower controller reported clearing an aircraft onto a closed taxiway.

Attributes
ACN	1411257
Time
Date	201612
Local Time Of Day	0001-0600
Place
Locale Reference	BTV.Airport
State Reference	VT
Environment
Light	Night
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Route In Use	None
Flight Plan	IFR
Person 1
Function	Flight Data / Clearance Delivery Ground Local
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Deviation - Procedural Clearance Ground Incursion Taxiway

Narrative:

I was working everything combined in the tower; runway 15 operation. Snow removal operations were in progress. Taxiways were opening and closing due to snow removal with 50 percent of the movement areas closed. We decided to swap runways due to the wind change. Certain taxiways that were closed had a greater effect on the operation now than before due to the new runway selection. The taxiway that met the runway 33 full length (taxiway left) was closed but had no effect to the operation when we were on runway 15. It having no effect previously caused me to forget it was currently closed and I taxied aircraft X to runway 33 via full length on taxiway lima. When snow removal is in progress; I believe positions should not combined in the tower due to higher workload.

Original NASA ASRS Text

Title: BTV Tower Controller reported clearing an aircraft onto a closed taxiway.

Narrative: I was working everything combined in the tower; Runway 15 operation. Snow removal operations were in progress. Taxiways were opening and closing due to snow removal with 50 percent of the movement areas closed. We decided to swap runways due to the wind change. Certain taxiways that were closed had a greater effect on the operation now than before due to the new runway selection. The taxiway that met the Runway 33 full length (taxiway L) was closed but had no effect to the operation when we were on Runway 15. It having no effect previously caused me to forget it was currently closed and I taxied Aircraft X to Runway 33 via full length on Taxiway Lima. When snow removal is in progress; I believe positions should not combined in the tower due to higher workload.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.