Location: Spokane, Washington
Owner: Spokane Transit Authority
Client: Spokane Transit Authority
Construction Cost: $12,000,000
- Transit Station Planning/Design
- Site Development Planning/Design
- Transit Structure Design
- Travel Demand Modeling/Forecasting
- Cost Estimate Development
- Signing Design
- Intersection Analysis/Design
- Intelligent Transportation System Planning/Design
- Roundabout Interchange Design
- Construction Engineering Inspection
In Spokane County, Washington, transit users traveling between Medical Lake and Cheney were required to travel to downtown Spokane to make their connections, an indirect and lengthier route. To create better connectivity between these West Plains communities and improve the speed and reliability of the bus lines, the Spokane Transit Authority initiated a project to build a transit center along I‐90 near Exit 272. This facility allows passengers to change buses in the West Plains area. Lochner’s services included an interchange justification report, design, and construction engineering and inspection.
To complete the interchange justification report, Lochner coordinated extensively with representatives from the core stakeholder group: City of Cheney; Spokane International Airport; Spokane County; West Plains Chamber of Commerce; Federal Highway Administration; Caterpillar, Inc.; Washington Department of Transportation; Spokane Regional Transportation Council; Federal Transit Administration; and Spokane Transit Authority. The report evaluated the need for an access change on I‐90 and demonstrated that the interstate’s current level of service would not be impacted. It also provided four alternatives and analyzed the impact of each on the transit system’s reliability and performance to speed. The selected alternative employed a dedicated bus access lane on I‐90 from the ramp terminal, using roundabouts to access the transit center.
Lochner’s design incorporated a large passenger plaza area, a 200‐stall park‐and‐ride lot, and a main loading platform with three bus bays to accommodate current and future service growth. Other features included transit‐only lanes, electric car charging stations, landscaping, lighting, bicycle parking, passenger shelters, a utility/ITS/restroom building, and a complete intelligent transportation system with real‐time rider information. To address the basalt subsurface conditions and the high‐water table, three stormwater evaporation ponds were placed adjacent to the transit center. The largest of the ponds included a waterfowl prevention device, mitigating impacts to the nearby Spokane International Airport.