| Show STREET THAT NEEDS NO CURB no new P pavement ment he has inverted cia crown so that water drains through the middle of the thoroughfare the strolls streets of 0 a new resilience residence ill dis brict let in cedar rapids in ham been improved recently with nn an invented crown concrete ili that 1 Is the ce center anter ot of the street Is it a trifle lower the alinn nn the ad so that the water ter drains down through the middle of the thor ough fire firc this makes curbs mt inverted co ii pavement siry amid and 1 ts said to be bare proves proven I 1 in ill ease case a PaN ement that Is laid without culb has the ai a I c cuned ced ed crown the water will vill eventually mash S h way away the earth under the oil ades es this concrete will laid 5 Inal inches lIsA thick hick and 18 feet yi wide ble m with till expansion joints i inserted arted cery 30 feet popular mechanics magazine |