A design team led by Erdman Anthony was selected to
study alternatives for improvements to the exits 18 and 19 interchanges on I-83
(SR 0083, Section 040) and develop the selected alternatives for construction
bidding. The interchanges are on a heavily traveled section of the I-83 corridor
serving the City of York, with an average daily traffic count of more than
50,000 vehicles. During conceptual design, it was determined that Exit 18, a
diamond interchange at Mt. Rose Avenue, would be re-designed as a stand-alone
project and advanced to final design and construction independent of Exit
Multiple alternatives were evaluated for the
reconstruction of the Exit 18 interchange, including a single-point urban
interchange (SPUI), a diverging diamond interchange, a compressed diamond
interchange, and several hybrid alternatives involving jughandles. The selected
alternative has a modified jughandle/trumpet geometry. Overall, the design
Reconstruction of one mile of I-83 mainline;
Widening of Mt. Rose Avenue, which crosses I-83 at the interchange;
Widening of SR 2005, which parallels I-83, including a new intersection with
I-83 on/off ramps;
Removal of two ramps, reconstruction of two existing ramps, and construction
of four new ramps;
Reconstruction, replacement, construction, or removal of nine bridges;
Construction of one retaining wall, one combined noise/retaining wall, and
one noise wall;
Construction of an access road to an adjacent business park;
Removal of one traffic signal and addition of two traffic signals;
Construction of continuous sidewalks on Mt. Rose Avenue and SR
Mill Creek runs parallel to I-83 throughout the project area. The project
proposes construction of four bridges and substantial widening of two existing
bridges over Mill Creek, which is part of a detailed FEMA study area with a
delineated floodway. The hydraulic analysis of the proposed conditions included
the modeling of six bridges and 2,200 feet of stream realignment within a 1.7
mile reach of Mill Creek. The project will cause unavoidable increases to the
100-yearr floodplain; therefore, a Conditional Letter of Map Revision (CLOMR)
submission was prepared and is currently being reviewed by FEMA.
When complete, this project will improve safety and
performance through the interchange, improve traffic flow on local streets, and
accommodate future growth.
Contact Us Today
Erdman Anthony is a multidisciplinary firm specializing in infrastructure engineering and support services.
The Erdman Anthony headquarters is located in Rochester, NY. We have 250+ personnel dispersed throughout offices in New York, Pennsylvania, Maine and Florida.
Be sure to check out our latest social media topics on Twitter and LinkedIn.
© 2017 Erdman Anthony | All Rights Reserved | Site Map