Stayton Wastewater Master Plan
Stayton Wastewater Master Plan
City of Stayton / Stayton, OR
Downtown Boise Drainage Study
Downtown Boise Drainage Study
Multiple Clients / Boise, ID
Jefferson County Transportation Plan
Jefferson County Transportation Plan
Jefferson County / Rigby, ID
MUNICIPAL ENGINEERING Project:
Jefferson County Transportation Plan
CLIENT / LOCATION
Jefferson County / Rigby, ID

Faced with expanding residential development, the City of Rigby and Jefferson County selected Keller Associates to develop a county-wide transportation plan that would guide both jurisdictions in providing for future growth.

The study began by identifying three levels of need:

1) Analyses of a TAMS pavement condition inventory provided the basis for recommending city and county maintenance programs. 2) Analyses of existing traffic levels and safety data, together with citizen comments, identified roadways and intersections in immediate need of improvement. 3) A zone level forecast of traffic movements was developed based on the amount and distribution of growth projected by the Jefferson County Office of Economic Development.

Highlights:

  • The evolution of a five mile section of SH 48 passing through Rigby from its current character of a rural highway to a multi-lane, signal controlled urban roadway
  • Delineation of other immediate roadway and intersection improvements to address existing capacity and safety needs
  • A long term focus of resources on a “County Circulation System” necessary to augment cross-county mobility served by only SH 48 at the present time
  • Guidelines for the improvement of specific roadway segments and intersections within a near uniform rural mile grid system as the specific location and intensity of growth becomes known
  • Changes to the roadway functional classification to reflect plan components
  • The plan also addressed changes to City and County development ordinances to better guide the interface between growth and the surrounding roadway systems. Upon completion, both Rigby and Jefferson County passed resolutions adopting the plan as guiding future transportation policy decisions


 

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