The purpose of the United States (U.S.) Numbered Highway System is to facilitate travel on the main interstate highways, over the shortest routes and the best available roads. A route should form continuity of available facilities through two or more states that accommodate the most important and heaviest motor traffic flow in the area. The routes comprising the National System of Interstate and Defense Highways will be marked with its own distinctive route marker shield and will have a numbering system that is separate and apart from the U.S. Numbered Highway System. For the convenience of the motorist, there must be continuity and a uniform pattern of marking and numbering these Interstate routes without regard to state lines.

The U.S. Numbered System was established in 1926 and the Interstate Numbered System was established in 1956. Both have reached the period of review, revision, and consolidation. They now need perfecting rather than expansion. Therefore, any proposed alteration in the established systems should be extremely meritorious and thoroughly, though concisely, explained in order that the Special Committee on U.S. Route Numbering and the Standing Committee on Highways of the Association may give prompt and proper consideration to each and every request made by a member department. Explanation and Reasons for the Request: (Keep concise and pertinent.) SEC. 1304. HIGH PRIORITY CORRIDORS ON THE NATIONAL HIGHWAY SYSTEM. (a) Evacuation Routes- Section 1105(b) of the Intermodal Surface Transportation Efficiency Act of 1991 (Public Law 102- 240; 105 Stat. 2032) is amended in the first sentence by inserting `and evacuation routes' after `corridors' the first place it appears.

(b) Corridors- Section 1105(c) of the Intermodal Surface Transportation Efficiency Act of 1991 (105 Stat. 2032) is amended--` (79) Interstate Route 376 from the Pittsburgh Interchange (I/C No. 56) of the Pennsylvania Turnpike, westward on Interstate Route 279, United States Route 22, United States Route 30, and Pennsylvania Route 60, continuing past the Pittsburgh International Airport on Turnpike Route 60, to the Pennsylvania Turnpike (Interstate Route 76), Interchange 10, and continuing north on Pennsylvania Turnpike Route 60 and on United States Route 422 to Interstate Route 80.

Date facility available to traffic Currently exists as I-279

Does the petition propose a new routing over a portion of an existing U.S. Route? Yes If so, where? U.S. 22, U.S. 30

Does the petition propose a new routing over a portion of an existing Interstate Route? Yes If so, where? I-279

2 Interstate 376 will begin at the intersection of Interstate 80 and PA Route 60 in Mercer County, Pennsylvania. The route will follow existing PA Route 60, Toll PA Route 60, PA Route 60, US Routes 22/30, and Interstate 279. The roadway is existing PA Route 60, Toll PA Route 60, PA Route 60, US Routes 22/30, and Interstate 279. Because existing Interstate 376 is an east/west route, the PA Department of Transportation would like the extension of I-376 to also be an east/west route. The existing US 22/30 is an east/west route; however, the remaining roadways (PA Route 60, Toll PA 60, and Interstate 279) are currently North/South routes. New Castle, Beaver, Pittsburgh. (69 miles) It Ends in Pittsburgh, at the current intersection of I-279 and I-376.

AASHTO - Interstate 376 Re-designation (Pennsylvania)

State Intersection Point to Accumulated Remarks Point Mileage In Mileage State

PA Jct. I-80 0 0 I-376 Begins

PA Jct. PA 318 1 1 West Middlesex

PA Jct. PA 18 1 2 West Middelsex

PA Jct. PA 208 3 5 Pulaski

PA Jct. Mitchell Road 4 9 To PA 18

PA Jct. U.S 422 and Jct. 3 12 To New Castle Business U.S. 422

PA Jct. U.S 224 1 13 To Poland, Ohio

PA Jct. U.S 422 1 14 Toll Road Begins

PA Jct. PA 108 2 16 Mt Jackson

PA Jct. PA 168 4 20 West Pittsburg

PA Jct. I-76 and 5 25 PA Turnpike Jct. 351

PA Jct. PA 551 4 29 To Beaver Falls

PA Jct. PA 51 2 31 Toll Road Ends

PA Jct. Brighton 5 36 Brighton

PA Jct. PA 68 2 38 Beaver

PA Jct. PA 18 1 39 Monaca

PA Jct. Center 2 41 Center

PA Jct. Aliquippa 3 44 Aliquippa

PA Jct. PA 151 3 47 Hopewell

PA Jct. Business PA 60 2 49 Moon

PA Jct. Moon-Clinton Rd. 2 51 Clinton

PA Jct. Airport 1 52 Pittsburgh Int’l Airport

PA Jct. McClaren Rd. 4 56

PA Jct. Business 1 57 Moon PA 60

PA Jct. Montour Run Rd. 1 58 Montour Run Road

PA Jct. U.S. 22/30, PA 60 1 59 Steubenville

PA Jct. I-79 / I-279 4 63 Washington/Erie

PA Jct. PA 50 1 64 Carnegie

PA Jct. PA 121 2 66 Greentree

PA Jct. US 19/PA 51 2 68 Uniontown

PA Jct. I-376 with 1 69 Pittsburgh / I-279 Monroeville