Lincoln - MILES CRESTON RD 3B 4 4A & 5
Project Number: 1485
From milepost 14 to milepost 16.98
RATA Funds: $5,085,000
Legislative District: 13
Status:
Date Approved: 2007
The Miles Creston Road was designed and built in 1941 by the Department of the Interior in coordination with the Grand Coulee Dam project. Miles Creston Road serves multiple uses. Adjacent land zoning includes agriculture, recreation, commercial, industrial, local business, public facilities and residential development. This is a major route serving both direct and indirect access to the many recreational opportunities located along Lake Roosevelt. it provides access to surrounding agricultural and forest lands serving as a farm to market and commodity freight route. It also serves as a short cut and minor arterial between SR 2 on the south and SR 25 on the north. It is used extensively for freight transport within and throughout the region. Miles Creston Road has the highest traffic volumes of any other county road.
The existing roadway design consisted of a horizontal alignment that is just below the minimum design standards but the vertical alignment exceeds the minimum design. Many areas revealed inferior sub-grade material that could not support current and future traffic levels. The asphalt showed signs of age with spalling shoulders, longitudinal and transverse cracking and patched potholes.
The horizontal alignment deficiencies were improved with longer curves and / or adjusted super-elevations as needed. The surfacing was improved with the addition of crushed surfacing base course, top course and asphaltic surfacing. The roadway was widened with safety enhanced inslopes, removal of obstacles from the clear zone, guardrail installation where required, signs and delineation was added and other incidental work as required.
The existing roadway design consisted of a horizontal alignment that is just below the minimum design standards but the vertical alignment exceeds the minimum design. Many areas revealed inferior sub-grade material that could not support current and future traffic levels. The asphalt showed signs of age with spalling shoulders, longitudinal and transverse cracking and patched potholes.
The horizontal alignment deficiencies were improved with longer curves and / or adjusted super-elevations as needed. The surfacing was improved with the addition of crushed surfacing base course, top course and asphaltic surfacing. The roadway was widened with safety enhanced inslopes, removal of obstacles from the clear zone, guardrail installation where required, signs and delineation was added and other incidental work as required.