Brazil's São Paulo state water and electricity department DAEE has called a 33.4mn-real (US$21mn) flood control tender which entails building dikes along the Marginal Tietê highway in São Paulo city, a DAEE spokesperson told BNamericas.
"With funding coming from the state treasury, dikes will need to be built under the Vila Maria, Vila Guilherme and Limão bridges," the spokesperson said.
Proposals are due to be submitted on September 13.
As the bridges existed before the highway was built, some highway sections were lowered to allow buses and trucks to pass under the bridges.
The dikes are being built to minimize structural problems at these low points, which are susceptible to flooding. They will operate with small underground reservoirs and a set of pumps that will drain rainwater from the areas, the official said.
DAEE is also finalizing the bidding process for another dike construction project worth 40.6mn reais, which will involve building a dike under the Aricanduva bridge and another under the Vila Maria bridge.