Rainbow Curve Bridge constructed in 1923 over Brush Creek. Only remaining Marsh Arch Bridge on Route 66. Listed on the National Registry March 10, 1983. — — Map (db m52060) HM
Spanning the South Platte River, the Rainbow Arch Bridge carried vehicular traffic from its completion in 1923 until its closure in 1988. Engineer James B. Marsh of Des Moines, Iowa, designed the structure in 1922. Denver bridge contractor Charles . . . — — Map (db m47194) HM