It is not a gridlock or deadlock and vehicles do not wait in queues, but it is a situation when you know traffic is ..... because of the road rehabilitation.
The usual phrase, at least in the NYC metro area, is backed up: "Traffic on the FDR Drive is backed up from the RFK/Triboro Bridge to 14th Street due to road construction at 130th Street."
If the condition obtains in a non-continuous fashion at several locations on the same road, you may also hear the term congested or congestion: "There is an accident at Exit 12 on the Hutchinson Parkway, backing traffic up down to Boston Road, but you'll also see congestion right back to the Whitestone Bridge."
If by "traffic is stopped", you mean that no vehicles are permitted on a section of roadway (the segment is closed), then diverted is appropriate: "Traffic is being diverted from the West Side Highway at 96th Street due to sinkhole repair at 91st Street."
I think you are thinking of a 'traffic bottleneck'.
A traffic bottleneck occurs when you have a physical object blocking part of the road, causing disruption. Unlike a traffic jam, where there is no obstruction, and driving is just slow.
A bottleneck can refer to construction, or a car wreck, or some other physical thing blocking a lane and causing cars to merge, and slow.
Sources (Don't hate me because its a wiki o3o )