Road Improvement Alternatives
Banner Road:
Banner Road in southern Kitsap County traverses a steep side hill adjacent to Puget Sound in its descent into the town of Olalla. In addition to narrow lane widths and abrupt curvature, the roadway suffers from embankment settlement caused by the erosion of wave action, and unstable cut-slopes due to seeps and springs. Adjacent houses along the route further complicated the reconstruction sequence.
A topographic survey of the site was provided, and the information converted to a computerized terrain model. Design alternatives were run against the model, with close inspection of the generated cross-sections to determine if the option was feasible. Various types of retaining walls and slope stability techniques were incorporated into the alternatives; these options were also compared to relocation of the roadway with property condemnation.
Alternatives which appeared feasible were associated with costs and assembled into a design report for review by the County and the local public. The County was then better able to determine the most appropriate option, and coordinate the cost of the project into their road budget.
Project design features:
- Computerized Terrain Model
- Concrete Retaining Walls
- Concrete Seawalls
- Rockery Seawalls
- Shotcrete Slope Stabilization
- Right-of-Way Valuation
Flowery Trail Road:
The Flowery trail road crosses a mountain range connecting Stevens and Pend Oreille Counties. The route provides access to logging, mining, and recreational sites; and is developing into a connector route between the two Counties. The pavement on the Stevens County side suffers from severe frost action and is prematurely deteriorating. The completed design study provided the County with cost estimates.
Port Orchard Guardrail Project:
New guard rail installations were designed at four locations along city streets within the City of Port Orchard, WA. In an effort to minimize costs, field survey work was limited to the amount necessary to design and construct the work. Three of the locations used beam guard rail and one location required concrete barrier. All installations were achievable using standard plans and specifications of WSDOT, which reduced the cost of construction drawings and special provisions.
East Quilcene Road:
East Quilcene Road is a rural collector which connects the community of East Quilcene to US Highway 101. Traffic on the road had increased significantly due to the increasing residential development in East Quilcene. The design report considered analysis and designing horizontal and vertical curve alignment, widening and resurfacing approximately 2.6 miles of East Quilcene Road, and included traffic data collection, analysis of traffic data, and coordination of utilities extensions/relocations.
Dosewallips Road:
Dosewallips Road is a rural collector which connects upland residential developments to US Highway 101. Traffic on the road had increased significantly due to the increasing residential development. The design report considered analysis and designing horizontal and vertical curve alignment, widening and resurfacing approximately 1.61 miles of Dosewallips Road, and included traffic data collection, analysis of traffic data, coordination of utilities extensions/relocations, and improvements to the intersection with US Highway 101.
Key Project Features:
- Design to WSDOT and AASHTO Standards
- Rural Access Roads & Collectors
- Asphalt Pavement Design
- Deliverables included Reports, AutoCAD Drawings , Specifications & Cost Estimate
