Busiest exits in America

[planxtymcgillicuddy]

Excluding interstate-to-interstate interchanges, what are the busiest exits in America?

[MATraveler128]

I-95 and NY 9A Henry Hudson Parkway in Manhattan.

[kphoger]

Excluding interstate-to-interstate interchanges

So does something like this count?

[Hunty2022]

I-95 at New Jersey Route 4.

[webny99]

Surely it's going to be an interstate to major freeway exit somewhere, but how about "in your area"? (NY 441/I-490 would probably be my answer to that.)

[GaryA]

If we're including freeway/freeway connections that aren't interstate/interstate, then there are several likely candidates involving US 101, in the LA area and SF Bay Area.

My nomination would be SB US 101 --> SB I-405 (or its reverse).

[cwf1701]

From Detroit, i would nominate I-96 to Southfield (M-39) and I-75 to ON-Highway 3 via the Bridge.

[NWI_Irish96]

Excluding the interstate-interstate interchanges, without looking at any data, my stab at the busiest for each of Chicago's Expressways (freeways):

Dan Ryan: 35th
Eisenhower: Harlem
Kennedy: Ohio/Ontario
Edens: Dempster
Stevenson: Cicero
Ford: Stony Island
Tri-State: 95th
Borman: Indianapolis
IN Toll Rd: Cline

[JayhawkCO]

Highest in Colorado I would wager - I-25 and US6. I-25 and US36 probably a close second.

Another few big ones in the country - I-635 and US75 near Dallas and I-5/I-10/CA60 in LA.

[TheGrassGuy]

A better question to ask would be the busiest non-freeway-to-freeway exits. Because of all those major freeways in urban areas that happen to not be interstates, such as US-101, the NYS parkways, Texas's dozens of toll roads, etc.

[JayhawkCO]

In that case, I'd say around me, likely I-25 to Park Avenue near downtown Denver and I-225 to Parker Road (CO83) right by me.

[jp the roadgeek]

I-95/NJTP and the GSP.

[SkyPesos]

Since you're from NC, I don't blame you for not excluding exits with non-interstate freeways, so you get a free pass . But I'll exclude them myself here anyways.

A few exits in the Cincinnati and Columbus areas that feel noticeably busy to me:
- I-71 exit 12: US 22/OH 3
- I-71 exit 19: Mason-Montgomery Rd/Fields Ertel Rd
- I-275 exit 42: OH 747
- I-275 exit 63: OH 32
- I-270 exit 20: Sawmill Rd
- I-270 exit 23: US 23
- I-270 exit 32: Morse Rd

[TheGrassGuy]

I-95/NJTP and the GSP.

Oh, forgot to mention. Turnpikes and Parkways all count as expressways. So do expressways, thruways, skyways, grade-separated "drives", and Soldiers Field Road.

[Dirt Roads]

West Virginia 

The northbound onramp for Exit 53A from Oakwood Road onto the I-64 Fort Hill Bridge in Charleston has an AADT of 21,688.  It has a significant imbalance, as the southbound (westbound) offramp only has an AADT of 7,433.  The other two ramps are only 2,847 and 2,630.  But if the numbers are correct, it's probably the busiest in the state.  (Knowing Charleston, it is entirely possible that the morning rush hour traffic from the South Hills dumps onto I-64 and the evening rush hour into the South Hills avoids I-64 at all costs).

The westbound onramp for Exit 5 from the West Huntington Bridge onto I-64 has an AADT of 12,058 (2020).  This ramp carries US-52 southbound.  It also has a significant imbalance, as the eastbound offramp only has an AADT of 2,571.  That's less than half of the eastbound onramp, which has an AADT of 6,406.  The westbound offramp has an AADT of 6,398.  Something smells wrong with the data here.

The eastbound offramp for Exit 96 at the north end of the West Virginia Turnpike has an AADT of 10,300 (2020).  This ramp carries US-60 eastbound.  It's counterpart, the westbound onramp, only has an AADT of 5,694.  I feel like I'm scratching on a broken record here.

The westbound onramp for Exit 8 from Fifth Street (WV-527/WV-152) onto I-64 in Huntington has an AADT of 9,797 (2020).

The northbound offramp for Exit 179 from I-77 to Emerson Avenue in Parkersburg has an AADT of 8,635 (2020).  Which is not free-flowing.  This one carries WV-2 northbound, and the Emerson Avenue exit is also the north end of WV-68.  Care to guess?  It's counterpart for southbound I-77/WV-2 only has an AADT of 3,141.

The eastbound onramp for Exit 0 onto I-70 has an AADT of 8,625.  That one carries southbound US-250 off of Wheeling Island.  It's westbound offramp counterpart only has an AADT of 4,030.

The southbound offramp for Exit 119 from I-79 onto US-50 in Clarksburg has an AADT of 7,933.  Eastbound traffic onto US-50 has a stop light, but eastbound traffic here is free-flowing.  The parclo onramp from US-50 eastbound to I-79 northbound has an AADT of 5,681.

The eastbound offramp for Exit 1 from I-68 onto US-119 in Morgantown has an AADT of 7,326.

The southbound offramp for Exit 12 onto WV-9 and WV-45 in Martinsburg has an AADT of 7,126.  It's northbound onramp counterpart has an AADT of 6,819.

The northbound offramp for Exit 155 at Star City has an AADT of 6,148.  It's counterpart onto southbound I-79 has an AADT of 5,123.  This is the main exit for West Virginia University's Evansdale Campus.

Amazingly, the only non-qualifier here is westbound left-hand onramp at Exit 1B onto I-70 from the short US-250 freeway on the east side of the Wheeling Tunnel.  It has an AADT of 10,802 and its eastbound counterpart offramp has an AADT of 7,704.  The other ramps have substantial AADT counts as well.  It might be the busiest in the state, but alas it doesn't qualify.

[MASTERNC]

I would add I-95 and SR 896 (Exit 1) in Delaware.  The I-95 SB off-ramps are much busier than the NB ramps because of the shunpiking (especially the SB to SB ramp).  On 896, the ramps to I-95 NB are busier again because of shunpiking.

[achilles765]

In texas, I imagine IH 610 at IH69/US 59 in southwest side of town, IH 10 and IH 45; IH 635 and US 75, IH 30 and IH 35E, IH 35 and IH 37; IH 610 and Westheimer, IH 45 and Dallas Street/Pierce Street; IH 69/US 59 and Kirby Drive

[sprjus4]

^ Excluding freeway-to-freeway interchanges.

[kphoger]

^ Excluding freeway-to-freeway interchanges.

Not according to the OP.

[mgk920]

NB I-41 at College Ave (WI 125) here in Appleton, WI - A single lane diverges from I-41 there and then immediately splits into four lanes for the ramp's intersection at College Ave (WI 125) (two lanes turn right, two lanes turn left).

Mike

[thspfc]

The single busiest ramp in WI that is not Interstate-Interstate might be I-39/90 SB to US-12/18 WB in Madison.

The busiest ramp involving a non-freeway? Maybe I-94 and Moorland Rd in Brookfield.

[michravera]

NB I-41 at College Ave (WI 125) here in Appleton, WI - A single lane diverges from I-41 there and then immediately splits into four lanes for the ramp's intersection at College Ave (WI 125) (two lanes turn right, two lanes turn left).

Mike

Isn't US-101-to-I-405 or US-101-to-CASR-134 something like 330K ADT? Averaging more than the theoretical safe limit of 43200 per lane per day?

[skluth]

NB I-41 at College Ave (WI 125) here in Appleton, WI - A single lane diverges from I-41 there and then immediately splits into four lanes for the ramp's intersection at College Ave (WI 125) (two lanes turn right, two lanes turn left).

Mike

Isn't US-101-to-I-405 or US-101-to-CASR-134 something like 330K ADT? Averaging more than the theoretical safe limit of 43200 per lane per day?

Possibly. But NB I-41 at College is exiting to a street that mgk said was the highest in Appleton. Earlier,  thspfc posted something about Madison. You're comparing it to a freeway-to-freeway connection in California for some reason.  FWIW, NB I-41 at College AADT is 13,200 which is pretty good for an exit that ends as a stoplight.

Other Wisconsin AADT interchange numbers

• NB I-43 to NB I-41/894 20,900
• NB I-41/894 to WB I-94 24,000 (I believe the Zoo Interchange is the busiest in WI)
• EB US 12/18 to NB I-39/WB I-90 28,600 (busiest I found by I could have missed a busier one
• NB I-39/WB I-90/94 to NB US 151 20,100
• US 151 to EB US 12/18 21,500 (This is an entrance from a SPUI and the most impressive from my POV)

I see Dirt Roads posted "northbound onramp for Exit 53A from Oakwood Road onto the I-64 Fort Hill Bridge in Charleston has an AADT of 21,688." I'm more curious if another freeway-nonfreeway connection beats that.

[thspfc]

West Virginia 

The northbound onramp for Exit 53A from Oakwood Road onto the I-64 Fort Hill Bridge in Charleston has an AADT of 21,688.  It has a significant imbalance, as the southbound (westbound) offramp only has an AADT of 7,433.  The other two ramps are only 2,847 and 2,630.  But if the numbers are correct, it's probably the busiest in the state.  (Knowing Charleston, it is entirely possible that the morning rush hour traffic from the South Hills dumps onto I-64 and the evening rush hour into the South Hills avoids I-64 at all costs).

What exit is this? I'm assuming it's US-119 NB to I-64 EB right across the river from downtown?

[Dirt Roads]

West Virginia 

The northbound onramp for Exit 53A from Oakwood Road onto the I-64 Fort Hill Bridge in Charleston has an AADT of 21,688.  It has a significant imbalance, as the southbound (westbound) offramp only has an AADT of 7,433.  The other two ramps are only 2,847 and 2,630.  But if the numbers are correct, it's probably the busiest in the state.  (Knowing Charleston, it is entirely possible that the morning rush hour traffic from the South Hills dumps onto I-64 and the evening rush hour into the South Hills avoids I-64 at all costs).

What exit is this? I'm assuming it's US-119 NB to I-64 EB right across the river from downtown?

Almost.  Technically, both I-64 and I-77/I-79 come in along the west side of the Elk River, which is on the West Side and not part of downtown.  So even though Oakwood Road comes down out of the South Hills aimed straight at Downtown Charleston, the ramps place it just west of downtown.  But yes, this is the same bridge that you are describing.  It is also known as the Eugene Carter Memorial Bridge.  He was the founder of the local Teamsters union.