sections, stretches, flights (of stairs)
Dos tramos de escaleras me llevaron al puente.
Two flights of stairs led me to the bridge.
Mi casa tiene dos tramos de escaleras.
My house has two flights of stairs.
Spencerport tendría que reparar esos tramos o habría inundaciones, o algo peor.
Spencerport would have to repair those sections, or there would be flooding—or something worse.
Necesito cincuenta tramos de cable de diez pies de largo.
I need fifty lengths of cable, ten feet long.