Drivers are advised to seek alternate routes.
The two-vehicle crash occurred on East Haddam Colchester Turnpike, according to authorities.
Three other people were also taken to the hospital for injuries.
The bicyclist was transported by Deep River EMS then later LifeStar to Hartford Hospital for suspected head injuries, police said.
A downed tree has resulted in the closure of a lane Monday morning, according to the Connecticut Department of Transportation.
One vehicle collided into about 100 feet of guard rail and the other struck a rocky ledge, officials said.
A road was closed Monday morning due to live wires.
Two car crashes were reported in East Haddam on Sunday. One required firefighters to extricate a driver from a vehicle.
The Route 82 bridge will be closed weekly through late fall.
A school bus accident resulted in a road closure in East Haddam on Monday morning.
The road is closed in both directions, according to the state DOT.
The East Haddam Swing Bridge will result in overnight road closures of Route 82 over the Connecticut River.
The accident was reported Wednesday morning.
Route 82 and 434 are closed in East Haddam due to wires down.
A tree has fallen down Friday morning.
The crash happened Sunday night in Middletown, according to police.
The accident was reported on Monday.
The 110-year-old bridge will be updated with new equipment along with structural repairs and a new sidewalk.
The accident was reported Monday afternoon.
The closure was announced late Wednesday.
A section of the road was closed in both directions, according to the state DOT.
A wrong-way crash Tuesday afternoon left two people dead and hospitalized two others, state police said.
Two people were hospitalized following a wreck in Haddam on Friday.
One person was killed in a crash that shut down part of Route 154 for several hours on Friday, according to police.
A person was injured in the Monday morning accident.
An East Haddam teen died when his truck struck a tree Wednesday night, according to state police.
Gia Vincelett was struck and killed in a hit-and-run crash on July 29.
Gia Vincelett was riding her bike when she was struck by a vehicle Thursday. She died on Monday.
A 14-year-old girl is in critical condition following an accident in Haddam on Thursday night.
A man is dead following a wreck in East Haddam on Route 82.
Two people died in a wreck Tuesday night.
The crash occurred Tuesday night in Haddam.
Police are asking for help with identifying a man they said fled from the scene of a traffic stop in East Haddam.
Three people were injured in a Monday crash involving a tractor trailer and two Department of Transportation vehicles.
Two lanes were closed after an accident involving a tractor-trailer and two vehicles Monday afternoon.
A Wednesday evening wreck resulted in the entrapment of two victims.
Firefighters responded to the call Wednesday evening.
A road is closed and residents are being evacuated as crews respond to a propane truck accident.
Emergency crews responded to the call Thursday night.