UPDATED 2:11 P.M. JUNE 26:

I-35 in San Marcos has reopened. However, expect significant residual delays.

— TxDOT Austin(@TxDOTAustin) June 26, 2012

UPDATED 1:30 P.M. JUNE 26:

The I-35north and southbound access roads have reopened in San Marcos.

— TxDOT Austin(@TxDOTAustin) June 26, 2012

UPDATED 12:59 p.m. JUNE 26:

The city of San Marcos just sent out this statement to press:

Interstate 35 in San Marcos is being shut down in both directions, including the frontage roads, between exits 206 and 207 to repair utility lines that were snagged by a truck around 10:45 a.m. causing a power outage and brief fire.

Drivers are urged to detour around this area, northbound by taking exit 205 to Highway 80 to State Highway 21. Southbound drivers can take exit 207 and detour to Mill Street to Aquarena Springs Drive and back to I-35.

The interstate closed around 12:45 p.m. and is expected to be shut down until about 1:30 p.m. The accident occurred around 10:45 a.m. and caused a power outage of about 47 minutes.

On scene are San Marcos Electric Utility, Time Warner Cable, San Marcos Police, and the Texas Department of Transportation.

EARLIER:

Interstate 35 at Aquarena Springs Drive is closed while workmen string a power line across the highway. The Texas Department of Transportation tweeted news of the closure about five minutes ago and said it should last about a half-hour.

All I-35 to be closed at Aquarena Springs Dr in San Marcos in about 30 minutes to string power line. May be closed as long as an hour.

— TxDOT Austin(@TxDOTAustin) June 26, 2012

San Marcos PD is now in the process of shutting down north & southboundI-35 near Aquarena Springs Rd to allow repair of downed line.

— TxDOT Austin(@TxDOTAustin) June 26, 2012