Nearly 160 Horry County roads plus more than a dozen state highways were closed to traffic Monday as a result of Hurricane Matthew and the rising flood waters of the Waccamaw and Little Pee Dee Rivers.
Surging swamps and creeks have cut off roads trapping some residents in their homes, while others evacuated low-lying river areas by boat.
More than half of the county roads closed are due to flooding, fallen trees are to blame for blocking the remainder.
All interstate highways in the state are now open, but nearly a half-mile of Highway 501 is closed due to flooding between Pine Oak Farm Road and Rabon Road.
County highways impacted include Highway 90 at Sandridge Road, and the Highway 31 exit at John B. Singleton Parkway.
Main Street in Conway is blocked by flooding waters, and other roads that typically flood when the Waccamaw rises are under water, including Lees Landing and Waccamaw Drive.
The complete list of county roads and a map of the impacted routes can be found here:
State and local officials are not estimating when any road is expected to open.
State road closures in Horry County also include parts of:
▪ Cane Branch Road from Gerald Road to Dow Road
▪ Highway 19 from Playcard Environmental Center to SC 410
▪ Highway 45 from Limercock Road to South Branch Road, and from Gurley Road to Danny Road.
▪ Highway 701 from Harris Road to Sherwood.
▪ Ocean Boulevard from Melody Lane to Atlantic Ave.
▪ Pee Dee Road to Brunson Springs, and Brunson Springs from Highway 501 to Fork of the Swamp Road.
▪ Red Bluff Road from Highway 66 to Heritage Road
▪ Highway 19 from mile marker 22 beyond marker 24.
▪ Pee Dee Highway from mile point 6 to 8
▪ Highway 9 from U.S. 76 to S. 44
▪ Portions of Spring Branch and U.S. 76.
The drawbridges in Horry County are still without power to operate.
Numerous traffic signals are out at key intersections including Highway 17 Byass and on Highway 501.
State transportation officials say evacuation routes and other primary roads including those leading to hospitals or nursing homes are the focus of the first push.