Aircraft cost millions concrete runways are repaired in a couple days with concrete and gravel unless Moonbeam’s CalTran bozos are doing the repair.
Then, it would take millions of $’s and years for the repair.
Here in DC you give the contract to a friend of Marion Barry's, may he RIP, with a pickup who goes to 7-eleven and finds some road workers who proceed to repair 2 mile stretch of road and under-road services, with picks and shovels. Mostly it involves standing around and supervising the two guys who turn the stop -slow sign because their parked cars have reduced traffic to one lane.
After about two years they are finished with their pot-holed wonder and it is time to start over again. I save my sports car for off-roading in Texas, where the dirt roads are smooth as a baby's...., and use my off-road truck to navigate the roads in D.C. Such are affairs in the capital city of the world's richest and most powerful country.
Oh, and some Obama holdover in the National Park Service just closed the main road down-town, which runs through "her" park for the next two years. Her goal is to shut it permanently.
You're being way too optomistic -- In California, it would take millions of dollars and years just for planning and gettting approvals for the repair. The repair would then take additional millions and years to complete.