The area of I-5 and Steilacoom-DuPont road/Exit 119 is one of the busiest in Pierce County. We have been working very hard to improve congestion on I-5 during peak traffic periods, while maintaining access to DuPont, JBLM and neighboring communities. To accomplish this, we will be adding a lane in each direction to I-5 and redesigning the Steilacoom-DuPont Road interchange.
But first, we want to hear your opinion on the proposed design alternatives that will address the present day challenges and improve traffic flow in the future.
In addition, the bridge that now spans I-5 at Steilacoom-DuPont Road was built in 1957 and the locations of its piers do not accommodate more lanes on I-5. We are proposing to rebuild that overpass and improve it in the process not only by widening it but also by increasing its vertical height over I-5 to meet current standards. The new bridge would provide access to JBLM's DuPont Gate. The existing at-grade crossing of the railroad track would be removed.
Approximately 900 feet to the north of the existing overpass, we are also proposing to build a second elevated overpass that would serve travelers using Steilacoom-DuPont Road. This overpass would be built over the railroad.
Based on discussions with stakeholders, we are considering two alternatives. This is where we need your feedback. The options include either a couplet or ramp bypasses. Here's what they'd look like:
|In the "Couplet" option, drivers would access both the JBLM DuPont Gate and access to Steilacoom DuPont Road on the same ramp.|
|In the "Bypass Ramps" option, drivers going to the JBLM DuPont Gate would be on a separate ramp. Drivers going to Steilacoom-DuPont Road would bypass this ramp.|