TXDOT plans to know about the cost of supplying electricity

TXDOT plans to know about the cost of supplying electricity from power cables which already exist along AB. The minimum length for least cost considered. Determine this minimum length(PH). A(420.26, 800.05), Az = 102 degree, 25\'31\" B(1400.84, 1150.64), Az = 200 degree 55\'7\"

Solution

TxDOT wouldn’t cap the depressed section to create park land, as some community activists have proposed. But it would be built in such a way that, if and when the city of Austin comes up with the funding, I-35 could have caps installed between Cesar Chavez and Eighth streets, and between 11th and 12th streets, officials said.

TxDOT officials had previously said that the upper deck bridges, which opened in 1974 and currently have two lanes in each direction, didn’t have the structural strength to support a third lane of traffic. But consultants who have been working on the master plan for I-35 for several years said Friday that, with about $50 million of modifications, the upper decks could safely accommodate the additional lanes.

The columns for the upper decks would be strengthened, said Dustin Elliott, a project manager with engineering firm HNTB working for TxDOT on the I-35 plan, by installing additional subsurface pillars and connecting them to the existing columns. Workers would also run cables along the horizontal supports of the upper decks, which would increase the structural strength of those concrete pieces underlying the road surface.