UPDATE — WisDOT has reopened the highway following the crash.
DANE COUNTY (WKOW) — The north and southbound lanes are closed on Wisconsin Highway 78 at Blue Valley Rd. in Blue Mounds, due to a crash.
All lanes are blocked in both directions.
The Dane County Communications Center says it was reported as a head-on collision between two vehicles.
The state Department of Transportation estimates a two-hour cleanup.