Kingsbury Grade repairs to cause delays

The Nevada Department of Transportation will begin a project Sept. 11 to enhance roadway drainage pipes on Kingsbury Grade.

Between Sept. 11 and late summer 2018, single lane closures with a traffic flagger will periodically be in place on the Carson Valley side of Kingsbury Grade between mileposts 3 and 11. The single lane closures will primarily take place Mondays through Fridays between 7am and 5pm, with periodic Saturday lane closures. Motorists should anticipate travel delays of up to 30 minutes.

Construction will not take place during major special events or the December, January and February winter construction shutdown.

Approximately 15,000 feet of eroding roadway drainage pipe will be reinforced with a cured-in-place pipe liner. A flexible pipe liner is inserted into existing drainage pipes. Resins in the liners are then hardened, creating a durable pipe able to last decades.

Last winter, NDOT repaired a sinkhole which formed where a drainage pipe crosses underneath Kingsbury Grade, less than 10 miles up the road on the Carson Valley side. NDOT took underground video to review other roadway drainage pipes, finding moderate erosion of some pipes. 

The project will cost $4.4 million.