Purpose
The purpose of this project is to preserve the transportation asset, improve the reliability of the transportation system and perpetuate the mobility of the traveling public.
The existing asphalt surface is between 28 and 37 years old, and therefore is at or beyond the end of its anticipated service life. Previous mill and overlays of different sections of “A” Street have been completed in the years shown below:
- 1986 – Cotner to 56th Street
- 1988 – 40th to 48th Street
- 1995 – 48th to Cotner Boulevard
The asphalt on this segment is currently rutted through the extents of the corridor and was patched in 2012. Additional patching and maintenance have taken place continually throughout the corridor. The existing roadway has areas of patching and thermal cracks. The pavement must be resurfaced to eliminate further infiltration of water, one of three necessary components for continued reaction and deterioration. The existing Pavement Condition is rated as poor to very poor with PCI scores of 16 to 30 provided by the StreetSaver System.
Need
The need for this project is to preserve and extend the service life of existing facilities and enhance safety by using safety conscious design. The improvements would satisfy existing and future traffic needs and conditions in a manner conducive to safety, durability, and economy of maintenance.
The width of “A” Street changes throughout the corridor. The two-lane section from 40th Street to 48th Street is approximately 27.0 feet from back-of-curb (BOC) to back-of-curb. The three-lane section from 48th Street to 56th Street is approximately 31.5 feet from BOC to BOC. A two-way left-turn lane (TWLTL) is recommended to be added to the existing two-lane section from 40th Street to 48th Street to reduce rear-end crashes and increase traffic flow. Widening the existing roadway is needed for a three-lane section to meet the Nebraska Board of Public Roads Classifications and Standards.
Signals at the intersections of “A” Street & 48th Street, “A” Street & Cotner Boulevard, and 48th Street & Cotner Boulevard are at the end of their anticipated service life.
Scope of Work
This project would rehabilitate approximately one mile of “A” Street between 40th and 56th streets. The project would consist of a mill and overlay of “A” Street from 40th to 56th streets; adding a center turn lane along “A” Street from 40th to 48th streets; and repairing the pavement base as needed. It would reconstruct pedestrian ramps and would also reconstruct inlet tops, curb and gutter.
Other improvements would include signal replacements at the intersections of 50th Street, South Cotner Boulevard and “A” Street; 48th and “A” streets; and 48th Street and South Cotner Boulevard. A roundabout will be evaluated for installation at the intersection of 40th and “A” streets. The project would also analyze the pedestrian crossing near 52nd Street, which may result in removal of the pedestrian signal and installation of a Rectangular Rapid Flashing Beacon (RRFB). There is potential for permanent closure of access to “A” Street from 50th Street.
Funding
Project Schedule
Construction is tentatively planned to begin in 2028.