Project to untangle Delaware's busiest interchangeExpect three years of vexation, though, at I-95 and Del. 1
By JEFF MONTGOMERY • The News Journal • August 21, 2010
It's among the most-notorious "Ts" on Delaware's traffic map, a source of endless aggravation for the hundreds of thousands of motorists who slog daily along I-95 and Del. 1 near Christiana Mall.
Now officials say that life around the busiest interchange at the busiest stretch of I-95 in Delaware will take a turn for the better, starting as early as next spring.
But only after a multiyear, $191 million detour through Work Area Purgatory.
"There are all kinds of conflicts that are going to be alleviated with these plans," said Mike Williams, DelDOT spokesman. "It's not going to be a short-term construction project. It will probably be two or three seasons, and it's going to have to be done under traffic. It might be a little dicey -- a little setback to get a large gain."
Proof of DelDOT's progress toward the start of work on new high-speed ramps between the two big highways came this week, with a request for last-minute changes to federal wetland impact statements. Advertisements for construction bids are scheduled to be released in September and October, with all work under way before the end of 2011.
Final approvals will clear the way for work on two new dedicated "flyover" lanes that will carry traffic from northbound Del. 1 to northbound I-95. Another two dedicated and isolated lanes will open for southbound I-95 traffic moving to southbound Del. 1.
Other lanes will untangle local traffic to and from the Christiana and Christiana Mall area, and eliminate a maddening series of jogs, weaves and Jersey barriers that keep horns blaring and lights flashing throughout rush hours.
"It's one of those daily irritants that I think at this point a lot of people take in stride, but I'm sure they're anxious to see something done," said Glenn Pusey Jr., a Bear-Glasgow community representative on a citizen panel that advises WILMAPCO, a regional transportation planning group.
Pusey, a retired DelDOT highway engineer and manager, said the interchange was once considered "adequate," but traffic and suburban growth erased that claim long ago.
Current-year WILMAPCO traffic estimates show that 233,725 cars and trucks move along I-95 north of Del. 1 daily, while 106,090 travel Del. 1 south of the interstate each day.
Counts for I-95 are 16 percent higher than the number predicted for this year in a WILMAPCO forecast issued in 2004. Current Del. 1 traffic levels are 14 percent higher than was predicted just six years ago.
By comparison, federal records this year list just 41 highway segments nationwide with more than 250,000 vehicles per day on average, with Interstate 270 in the Maryland-D.C.-Virginia area listed as having just over 250,000.
"In terms of its regional importance, that 'T' connects the top of the state with the bottom of the state," said Dan Blevins, a WILMAPCO planner. "It has become the easiest way to access I-95 if you're coming from southern parts of the peninsula. Not just Delaware, but the Delmarva Peninsula."
Pressure will grow with development of the new U.S. 301 connector, a project that will funnel traffic from the Middletown area, parts of Eastern Shore Maryland and the Chesapeake Bay Bridge to the Del. 1 Roth Bridge south of Christiana.
"Demand has outstripped the current alignment" already, Blevins said.
"You'll see a lot of phasing" of construction, Blevins added. "There have been discussions with the Christiana Mall about limiting or curtailing lane closures from Thanksgiving to Christmas."
DelDOT already has completed construction of a fifth through-lane on I-95 to handle the extra traffic to and from Del. 1.
Along the northbound side of the interstate, Del. 1 traffic will merge from both sides.
Contractors also are building new high-speed toll collection lanes on I-95 at Newark.