Highway 70

Highway 70 was a east-west highway that goes from Berlin to Edison It was completed in 1962 using 3 phases. It is also the southwestern part of Highway 270. In Pulaski, this highway has a concurrency with Route 2 and Route 4 while it meets at an intersection at Highway 55. This highway was planning to go to Mojang Islands, but NADOT was scheduled to end at an intersection with Highway 75 at Edison. Only Route 4 was to go to Mojang Islands. It was named "Forest Highway" where it crosses the forest from Edinburgh to Berlin.

History
In early 1955, people was planning for a highway to go from Berlin to Mojang Islands and then replace Manhattan Route 10 (now Route 4). They said it was having a concurrency with the route. Constuction began in February 1956 using three phases. Phase 1- Berlin to Manhattan Phase 2- Manhattan to Wasikowski Phase 3- Wasikowski to Edison Phase 1 was to get from Berlin to Manhattan. It was completed in Sept. 1957. Phase 2 was to expand this highway from here to Wasikowski and it was completed in Oct. 1959. Phase 3 was to expand it again to Edison to Highway 75. It was completed in Nov. 1961. All phases was completed in May 1962.

Edinburgh Viaduct
The Edinburgh Viaduct is a double-decker highway that spans Lake Henry. It was completed in 1957. It became a failure to local traffic. On the national bridge rating from 10-1, this viaduct was rated as 4. This means that it is listed structurally sound. NADOT closed the bridge and it was torn down. They choose the bridge to be an 8-lane bridge and replacing it and it was called Edinburgh Memorial Bridge and it opened in 2010.

Manhattan Viaduct
The Manhattan Viaduct is an elevated highway that spans from Route 4 to Highway 370. It crosses the Manhattan-Pulaski Railway. It was completed in 1959. Like the Edinburgh Viaduct, on the national bridge rating, it was rated as 5 and it means a little sound. On 1999, it was rated as a 3 and it is structurally deficient. They said it was a plan to replace a bridge with a ground level roadway or a tunnel, then use these pieces of a viaduct to be rehabilitated and then was part of a project. They chose a ground level roadway, construction begun in March 2000 and it was completed with a ribbon-cutting ceremony on 2005.

Forest Highway
Forest Highway was a 4-lane parkway that goes from Edinburgh to Berlin. It was signed as Forest Highway 70 and its part of a concurrency. It passes the dense forest. It was completed in early 1957.

Trivia
Forest Highway was based on Franconia Notch Parkway in New Hampshire and the Pennsylviania Turnpike. Manhattan Viaduct is based on the old Central Artery Highway in Boston, Massachusetts.