Thika Super Highway is 50km 8 lanes from Nairobi to (Thika) Kenol. Mombasa Road is 30km 6 lanes from CBD to Athi River, and continues on dual carriage mpaka Machakos juction. Waiyaki way is 6 lanes from Westlands to Rironi (20km), and the mighty expressway, 27km from Mlolongo to Westlands. Mna hiyo Kimara Kibaha highway pekee yake?
Alafu Dar es Salaam is a coastal city, Nairobi is inland. In my comparison, I clearly compared the lengths of the two bridges. Nonetheless, the bridge is still longer than your bridge whether on land or on water, ama hujui maana ya bridge ni nini?