How many turns does it take to travel each route in your state?

[TheGrassGuy]

Here's New Jersey.

Nineteen
US Route 9:
NJ-109 intersection Cape May, Shore Rd/Roosevelt Blvd Marmora, GSP interchange Marmora, GSP interchange Somers Point, NJ-157 intersection Absecon, GSP interchange Port Republic, GSP interchange Bass River (2 turns NB and 1 turn SB), GSP interchange Toms River (1 turn NB and 2 turns SB), GSP interchange Toms River (3 turns NB and 2 turns SB), NJ-35 interchange South Amboy, US-1 interchange Woodbridge, Tonnelle Circle, NJ-93 intersection Ridgefield (SB only), US 46 interchange Palisades Park (2 turns), I-95 Exit 72B Fort Lee

Seventeen
US Route 202:
I-287 interchange Bridgewater, N end of US-206 multiplex, Somerville Rd/Main St Bedminster, Morristown Green (counts as 0 turns SB and 3 turns NB due to circle configuration), Littleton Rd/Parsippany Rd Parsippany, Parsippany Blvd/Intervale Rd Parsippany, Main St/Myrtle Ave Boonton, Main Rd/Firehouse Rd Towaco, Firehouse Rd/Main Rd Towaco, Main St/Boonton Tpk Lincoln Park, both ends of NJ-23 multiplex (counts as 2 turns each, 4 turns total), Black Oak Ridge Rd/Hamburg Tpk Wayne, Hamburg Tpk/Terhune Dr Wayne, Ramapo Valley Rd intersection Oakland, Ramapo Valley Rd/Franklin Tpk Mahwah

Eight
US Route 40:
NJTP Exit "1" (counts as 2 if going WB), Harding Hwy/West Ave Woodstown, either end of NJ-47 multiplex, N end of NJ-50 multiplex, Main St/River Rd Mays Landing, W end of US-322 multiplex

Seven
NJ-27:
Essex Ave/Lake Ave Metuchen, Lake Ave/Middlesex Ave Metuchen, NJ-35 intersection Rahway, Rahway Ave/Chilton St Elizabeth (SB only), Rahway Ave/Cherry St Elizabeth (NB only), NJ-28 intersection Elizabeth, Westfield Ave/N Broad Street Elizabeth, N Broad St/Newark Ave Elizabeth

NJ-71:
Either end of NJ-35 multiplex, 8th Ave/Main St Belmar, Main St/Deal Lake Dr Asbury Park, Deal Lake Dr/Park Ave Asbury Park, Norwood Ave/Cedar Ave West Long Branch, Monmouth Rd/Eatontown Blvd Eatontown

NJ-94:
US-46 and I-80 interchange (1 turn both ways), S end of US-206 multiplex (counts as 1 turn SB and 2 turns NB due to circle lane configuration), N end of US-206 multiplex, both ends of NJ-15 multiplex, S end of CR-517 multiplex

Six
NJ-28:
Main St/N Gaston Ave Somerville, N Gaston Ave/Union Ave Somerville, W Front St/Plainfield Ave Plainfield, Plainfield Ave/W 4th St Plainfield (WB only), Plainfield Ave/W 5th St Plainfield (EB only), E 4th St/Roosevelt Ave Plainfield (WB only), Roosevelt Ave/E 5th St Plainfield (WB only), S Ave W/E Broad St Westfield, E Broad St/N Ave W Westfield

Five
US Route 46:
Landing Rd interchange Ledgewood, NJ-10 intersection Ledgewood, NJ-21 interchange Clifton, NJ-20 interchange Clifton, I-95 Exit 72B Fort Lee

US Route 322:
Mullica Hill, either end of the NJ-47 multiplex, Glassboro Rd/Sicklerville Rd Monroe, Sicklerville Rd/S Black Horse Pike

Four
US Route 1:
Tonnelle Circle, NJ-93 intersection Ridgefield (SB only), US 46 interchange Palisades Park (2 turns), I-95 Exit 72B Fort Lee

NJ-47:
Both termini of NJ-347, N end of US-40 multiplex, NJ-41 intersection Mantua

NJ-173:
Rupell Rd intersections EB, and I-78 Exit 13 WB (both 2 turns), I-78 Exit 15 and Pittstown Rd intersection EB, and W Main St intersection and I-78 onramp WB (2 turns)

Three
NJ-5:
Glen Rd/Central Blvd, Central Blvd/Palisade Ave, Palisade Ave/Columbia Ave

NJ-17:
Ridge Rd/Rutherford Ave Lyndhurst, S end of expressway, I-287 Exit 66 Mahwah

US Route 22:
NJ-57 interchange Lopatcong, I-78 Exit 3, I-78 Exit 18

NJ-41:
Chews Landing Rd/Kings Hwy W Haddonfield, Kings Hwy S/Connector Rd Cherry Hill, Connector Rd/Brace Rd Cherry Hill

NJ-181:
Espanong Rd intersection, Blue Heron Rd intersection, Main St/Sparta Ave N

Two
NJ-23:
Wayne interchange, Hamburg Ave/Mill St split Sussex (SB only), Hamburg Ave/Loomis Ave (NB only), Loomis Ave/Mill St (NB only)

US Route 30:
Airport Circle, US-130 intersection Collingswood

NJ-31:
Either end of the US-202 multiplex

NJ-45:
E end of US-40 multiplex in Woodstown, NJ-77 intersection Mullica Hill

NJ-79:
South St/E Main St Freehold, E Main St/Broadway Freehold

NJ-124:
South St/Madison Ave Morristown, NJ-24 interchange Millburn (WB only), NJ-82 intersection Springfield

NJ-159:
Bloomfield Ave/Oak Rd, Oak Rd/Clinton Rd

NJ-175:
River Rd/W Upper Ferry Rd, W Upper Ferry Rd/River Rd

NJ-179:
Bridge St/Franklin St Lambertville, Ringoes

One
US Route 1-9 Truck:
NJ-440 intersection Jersey City

NJ-4:
NJ-208 interchange Fair Lawn

US Route 9W:
Lemoine Ave interchange Fort Lee

NJ-36:
Joline Ave/Ocean Blvd N Long Branch

NJ-42:
NJ-42/ACE Exit 7

NJ-49:
W Broadway/Front St Salem

NJ-50:
S end of US-40 multiplex

I-78:
NJ-139 Jersey City

NJ-87:
NJ-187 intersection Atlantic City

I-95:
Exit 6

NJ-109:
GSP Exit 0

NJ-120:
CR 503 interchange East Rutherford

NJ-166:
1WP in Toms River

I-295:
NJTP/US-40 Pennsville

NJ-439:
Brunswick Ave/Bayway Elizabeth

NJ-440:
NJ-185 interchange Bayonne

I-676:
US-30 interchange Camden

Zero
NJ-3
NJ-10
NJ-12
NJ-13
NJ-19
NJ-20
NJ-21
NJ-24
NJ-26
NJ-29
NJ-32
NJ-33 Business
NJ-37
NJ-38
NJ-44
NJ-48
NJ-52
NJ-53
NJ-54
NJ-55
NJ-56
NJ-57
NJ-59
NJ-62
NJ-63
NJ-64
NJ-66
NJ-67
NJ-68
NJ-72
NJ-73
I-76
NJ-77
I-80
NJ-81
NJ-82
NJ-83
NJ-91
NJ-122
NJ-129
NJ-133
NJ-138
NJ-139
NJ-140
NJ-143
NJ-147
NJ-152
NJ-154
NJ-156
NJ-157
NJ-161
NJ-162
NJ-163
NJ-165
NJ-167
NJ-168
NJ-171
NJ-182
NJ-183
NJ-184
NJ-185
NJ-187
I-195
US Route 206 Bypass
NJ-208
I-278
NJ-284
I-287
NJ-324
NJ-347
NJ-413
GSP (NJ-444)
ACE (NJ-446)
ACE Brigantine Extension (NJ-446X)
NJTP (NJ-700)

Disputed:

US-206 (11-13):
Either end of US-130 multiplex (both ambiguous interchanges), White Horse Circle, 1WP in Trenton, Brunswick Circle OR Princeton Pike/Lawrenceville Rd intersection Lawrence, NJ-27 intersection Princeton, US-206 Bypass intersection Hillsborough, Somerville Circle, I-287 interchange Bridgewater, either end of I-80 multiplex, Newton (counts as 1 turn NB and 2 turns SB due to circle lane configuration), NJ-15 intersection Augusta

NJ-35 (6-7):
Brielle "Circle", Broad St/Maple Ave Red Bank, 2 turns north of that, Riverside Ave/Bridge Ave Red Bank, N end of US-9 multiplex (1 turn SB, 2-3 turns NB depending on how you count)... not to mention the numerous other "turns" unmarked by lane

NJ-33 (4-5):
Hamilton, either end of US-130 multiplex, N Main St/Franklin St Hightstown, Collingwood Circle (ambiguous)

NJ-7 (2-3):
Cathedral Ave/Kingsland St (disputable), Kingsland St/Washington Ave, CR 508 interchange Kearny

NJ-18 (1-2):
Hoes Ln/Centennial Ave Piscataway, Centennial Ave/Possumtown Rd (not sure if this counts)

NJ-34 (1-2):
Collingwood Circle (ambiguous), W end of NJ-33 multiplex

I-95 (1-2):
NJTP Exit 6, I-80 Exit 69 (ambiguous)

NJ-15 (0-1):
N Bergen St/E Clinton St Dover, if southern section is counted as part of NJ-15

NJ-70 (0-1):
Lakehurst Circle (ambiguous)

NJ-88 (0-1):
Junction with NJ-70 is considered a slight turn by Google Maps

NJ-172 (0-1):
Roundabout with Ryders Ln skippable WB

I-280 (0-1):
Exit 13 - majority of lanes take left exit/entrance while I-280 continues in other direction, but that's numbered as an exit

[Rothman]

Madness.

[froggie]

Just doing the U.S. routes for Vermont:

US 2 - 10 (technically 11 eastbound as one cannot make a direct left turn from Riverside Ave to Willard St in Burlington)
US 4 - 5
US 5 - 15 (technically 17 southbound due to a weird 1-way setup in Brattleboro)
US 7 - 6 (technically 8 southbound for same reason as US 2 above)
US 302 - 2 (both in Wells River)

[US 89]

Oh god. Maybe someday if I'm really bored I can go through state routes. But as far as US highways in Utah go:

US 6: 4 - US 50 in Delta, I-15 Santaquin interchange, I-15 Spanish Fork interchange, I-70 interchange near Green River
US 40: 1 - SR 121 in Roosevelt
US 50: 8 - SR 125/136 east of Delta, SR 64 in Holden, I-15 Holden interchange, I-70 Scipio interchange, Scipio, SR 24 in Salina, US 89 in Salina, I-70 Salina interchange
US 89: 22 - US 89A in Kanab, SR 143 in Panguitch, I-70 Sevier interchange, I-70 Salina interchange, SR 28 in Gunnison, US 6 near Thistle, US 6 at Moark Jct, SR 51 in Springville, southeast Provo, southwest Provo, SR 145 in American Fork, SR 194 in Lehi, I-15 Lehi interchange, I-15 Draper interchange, SR 71 in Draper, SR 186 in Salt Lake City, southwest Salt Lake City, I-15 interchanges in Bountiful and Farmington, SR 235 in North Ogden, US 91 in Brigham City, US 91 in Logan, SR 30 in Garden City
US 89A: 0
US 91: 0
US 163: 0
US 189: 2 - US 40 in Heber, I-80/US 40 interchange at Silver Creek Jct
US 191: 9 - US 163 near Bluff, Blanding, I-70 Crescent Jct interchange, I-70/US 6 Green River interchange, US 6 at Castle Gate, US 40 in Duchesne, SR 121 in Roosevelt, US 40 in Vernal, SR 44 at Greendale Jct
US 491: 0

[Great Lakes Roads]

Indiana (US Highways)- state roads will take me a while to do...

US 6: 4
US 12: 6 westbound, 4 eastbound
US 20: 6 westbound, 4 eastbound
US 24: 11
US 27: 1
US 30: 3
US 31: 5
US 33: 7
US 35: 10
US 36: 3
US 40: 7 westbound, 6 eastbound
US 41: 8
US 50: 9 westbound, 5 eastbound
US 52: 12
US 131: 0
US 136: 7
US 150: 10
US 224: 5
US 231: 21 southbound, 25 northbound
US 421: 20

[ran4sh]

I would be surprised if there are any US routes in GA that take less than about 5 turns (obviously some shorter ones like US 11 don't count).

[Evan_Th]

US highways in Washington State:

   US 101
* 1x End of bridge
* 1x Ilwaco
* 1x Holman
* 1x Snag Lake
* 1x South Aberdeen
* 3x Aberdeen (4x southbound)
* 1x Port Angeles
* 1x exit Madrona Beach

   US 730
(none)
   US 197
(none)

   US 2
* 1x exit Wenachee
* 1x turn Wenachee
* 1x Orondo
* 3x Waterville
* 1x Coulee City
* exit Spokane Airport
* 1x exit Spokane
* 1x Spokane
* 1x Newport (2x westbound)

   US 12
* Exit Elma
* Exit Grand Mound
* Exit Mary's Corner
* 1x Naches
* Exit Yakima
* Exit Richland
* 1x Wallula
* 1x Waitsburg
* (Westbound:  2x Dodge)

   US 195
* 1x Pullman

   US 395
* 1x Barney's Junction
* 2x exit Spokane
* Exit Ritzville
* 3x exit Pasco

   US 97
* 2x Maryhill
* 1x Toppenish
* Exit Yakima
* 2x exit Ellensburg
* 3x turn Ellensburg
* 1x turn Lauderdale Junction
* exit Leavenworth
* exit Wenatchee
* turn Wenatchee

[JayhawkCO]

I-70 in Pennsylvania - 2.

Chris

[-- US 175 --]

It would take a whole forum to list every route and its turns in TX.

As for a certain route in the avatar to the left, due to the helpful improvements over the years, US 175 has only 2 turns.  Both are the on-to/off-of transitions where it overlaps Loop 7 (as well as part of TX 19 and TX 31) in Athens.  Otherwise, it has been completely straightened, and almost completely widened

[jlam]

Oh boy.
US highways in Colorado:

US 6 EB: 21x
* 3x Grand Junction
* 1x Clifton
* 1x Rifle
* 2x Chacra
* 2x Dotsero
* 1x Gypsum
* 1x Minturn
* 1x Silverthorne
* 2x Idaho Springs
* 1x Golden
* 3x Denver
* 1x Brush
* 2x Sterling

US 6 WB: 21x
* Sterling is interesting. To go through Sterling on US 6 WB, you need to route off of US 6 for about a quarter of a mile. Altogether, US 6 takes four turns in Sterling.
* 1x Brush
* 1x Derby
* 1x Commerce City (see below)
* Denver also gets weird. One must drive down CO 2 for a small length and take the exit onto I-70 W. Overall, there are 3 US 6 turns in Denver, with one in neighboring Commerce City.
* 1x Golden
* 1x Idaho Springs
* 1x Loveland Ski Area
* 1x Silverthorne
* 1x Minturn
* 2x Chacra
* 1x Rifle
* 1x Clifton
* 2x Grand Junction

US 24: 13x (both ways)
Terminus
* 1x Leadville North
* 1x Leadville
* 1x Johnson Village
* 1x Antero Junction
* 4x Colorado Springs
* 2x Limon
* 2x Seibert
* 1x Burlington

US 34 EB: 3x
Terminus
* 2x Estes Park
* 1x Fort Morgan

US 34 WB: 4x
* 1x Fort Morgan
* 1x Wiggins
* 2x Estes Park

US 36 EB: 6x
Terminus
* 1x Estes Park
* 2x Lyons
* 1x Byers
* 2x Idalia

US 36 WB: 7x
* 2x Idalia
* 1x Byers
* 1x Denver
* 2x Lyons
* 1x Estes Park
Terminus

US 40 EB: 9x
* 2x Idaho Springs
* 3x Genesee
* 1x Golden
* 2x Limon
* 1x Kit Carson

US 40 WB: 10x
* 1x Kit Carson
* 2x Limon
* 1x Aurora
* 1x Golden
* 2x Genesee
* 2x Idaho Springs
* 1x Empire

US 50: 9x (both ways)
* 2x Loma
* 1x Grand Junction
* 2x Montrose
* 1x Poncha Springs
* 2x Pueblo
* 1x Lamar

US 84: 0x

US 85 SB: 9x
* 2x Greeley
* 1x Derby
* 1x Commerce City (see US 6 WB)
* 3x Denver (see US 6 WB)
* 2x Castle Rock

US 85 NB: 7x
* 2x Castle Rock
* 3x Denver
* 1x Henderson
* 1x Greeley

US 87: 0x

US 138: 0x

US 160 EB: 5x
* 1x Towaoc
* 1x Durango
* 1x Walsenburg
* 1x Trinidad
* 1x El Moro

US 160 WB: 6x
* 1x El Moro
* 1x Trinidad
* 1x Walsenburg
* 1x Alamosa
* 1x Durango
* 1x Towaoc

US 285: 6x (both ways)
Terminus
* 1x Johnson Village
* 1x Poncha Springs
* 1x Saguache
* 1x Monte Vista
* 1x Alamosa
* 1x Antonito

US 287 SB: 6x
* 2x Broomfield
* 1x Westminster
* 1x Denver
* 2x Limon

US 287 NB: 8x
* 1x Wiley
* 2x Limon
* 1x Aurora
* 1x Denver
* 1x Westminster
* 2x Broomfield

US 350: 1x (both ways)
* 1x La Junta

US 385: 12x (both ways)
* 1x Lamar
* 1x Granada
* 2x Sheridan
* 4x Cheyenne Wells
* 2x Burlington
* 2x Julesburg

US 400: 0x

US 491 NB: 1x
* 1x Cortez

US 491 SB: 0x

US 550: 1x (both ways)
* 1x Durango

[TheHighwayMan3561]

MN

US 2:
3 - Duluth
1 - Grand Rapids
2-  Crookston
total: 6

US 8 - none

US 10:
1 - Hastings
2 - St. Paul
2 - Shoreview
1 - Motley
1 - Moorhead
total: 7

US 12
1 - Minneapolis
2 - Benson
1 - Ortonville
total: 4

US 14
3 - La Crescent and adjoining
1 - Winona
2 - Rochester
2 - New Ulm
1 - Lake Benton
Total: 9

US 52
Canton - 1
St. Paul - 1
total: 2

US 53
Duluth - 1
International Falls - 2
Total: 3

US 59
Worthington - 3
Marshall - 1
Montevideo - 3
Appleton - 1
Barrett - 1
Elbow Lake - 1
Fergus Falls - 2
Thief River Falls - 1

US 61
3 - La Crescent and vicinity
3 - St. Paul
1 - Wyoming
total: 7

US 63
Red Wing - 1
Lake City - 1
Rochester - 3
Spring Valley - 2
Total: 7

US 65
1 - Albert Lea
total: 1

US 69 - none

US 71
Windom - 2
Redwood Falls - 1
Olivia - 2
Willmar - 2
Belgrade - 2
Lake Itasca - 1
Bemidji - 2
Blackduck - 1
International Falls - 2
Total: 15

US 75
Pipestone - 2
Lake Benton - 1
Ortonville - 1
Moorhead - 1
Crookston - 2
Warren - 2
Total: 9

US 169
Mankato - 1
Anoka - 1
Elk River - 1
Aitkin - 1
Grand Rapids - 1
Hibbing - 1
Total: 6

US 212
Eden Prairie: 1?
Montevideo: 1
Total: 1 or 2

US 218
Austin - 2
Owatonna - 1
Total: 3

[milbfan]

I'm lazy.  I'll do the one closest to me.

VA:  US 23 - 0.  Lots of curves, no turns.

[TheHighwayMan3561]

Some select entries from MN:

MN 1:
Ely - 1
Cook - 2
Togo - 1
rural Itasca County - 1
MN 6 duplex - 2
Northome - 3
MN 1/89 split - 1
Thief River Falls - 2
Total: 13

MN 23:
Pipestone - 3
Granite Falls - 2
St. Cloud - 2
Mora - 2
I-35 duplex - 2
Sandstone (MN 18 junction) - 1
Total: 12

[jlam]

US 212
Eden Prairie: 1?

I wouldn't call that a turn, as you don't exit to remain on US 212 in Eden Prairie.

[froggie]

US 212
Eden Prairie: 1?

I wouldn't call that a turn, as you don't exit to remain on US 212 in Eden Prairie.

Might be why he included the question mark, though I'm not sure offhand which "turn" he might be referring to.

A few more select Minnesota routes:

MN 13:
Albert Lea - 1
New Prague - 2
Savage - 1
St. Paul - 1
Total:  5

MN 55:
Wendell - 2
Elbow Lake - 2
Minneapolis - 3
Rosemount - 1 (not counting the northern 52/55 split)
Total:  8

MN 210:
Breckenridge - 2
Fergus Falls - 2
Staples - 1
Motley - 1
Crosby - 1
Deerwood - 1
Aitkin County - 1
Total:  9

[Albert]

Oregon: US 101 = 1 [formerly 2]
OR 126 = 5
OR 42 = 1

[Dirt Roads]

Do we still count the old-fashioned "turns" where three roads intersect in a wye and the "main road" turns from one to the other?  In the old days, we treated it like a turn but said "stay on the paved road".  Nowadays, the "side road" is usually paved as well.

[Bruce]

For Washington:

US 2 - 10
US 12 - 7
US 97 - 13
US 101 - at least 11 if NB, at least 12 if SB (due to SR 8 split)
US 195 - 2
US 197 - 0
US 730 - 0

Quickly done, counting joining/leaving freeways as well.

[kirbykart]

A few routes near me.
NY 242- 2 turns (at either end of the NY 353 concurrency, 353 is the straight through movement)
NY 353- None. A couple very sharp curves, but no turns.
NY 394- 5 turns (3 in Jamestown, 1 in Randolph, and 1 in Steamburg)
NY 280- 1 turn
NY 39- 9 turns (3 in Gowanda area, 2 in Arcade/Sardinia/Yorkshire, 1 near Pike, 1 at US 20A, 2 in Geneseo area)
NY 438- None
NY 362 (or whatever that connector one in Bliss actually is, because I'm not sure about the number.)- None
NY 391- None
US 219 in New York- 8/9 turns (2 just south of Springville, 2 more in Ellicottville, 3 in Salamanca, if you count getting off at an exit as a turn then 2 turns in Limestone area; if not then just one.)
NY 75- 2 turns
I might do more later.

[Dirt Roads]

West Virginia is a tough one.  First off, the old roads ran alongside the rivers and creeks, but if you wanted to get somewhere faster you needed to branch off the "river road" and head up over the mountain.  Secondly, the towns in West Virginia have their own issues with terrain and the best way across town is almost never aligned with the grid (that runs parallel/perpedicular to the river or creek.  This often leaves us with "main roads" that veer off the tangent routes.

One more important point.  Because of the terrain, West Virginia doesn't have many natural crossroads.  In many states in the Midwest or the Southeast, you will have diagonal routes that come into a town from one direction, then take a 90-degree turn in another direction.  This ain't gonna happen much in West Virginia (and there's only one true example on this list).  On the other hand, the Mountain State is full of places where three roads come in and connect from different directions in a wye. 

Nobody answered whether these all are considered "turns" for this exercise.  To make my life easier, I tried to remember how these intersections use to be and hold fast to a "fork-in-the-road" rule.  If all of these were still little unsigned dirt roads, the "fork-in-the-road" rule means you still need somebody local to help you known which of these roads to take to help you get somewhere.  When I was growing up, there were zillions of such examples all over the state.  To my surprise, WVDOH has done a great job of realigning these intersections so that there aren't nearly so many "turns". 

I-64 (2)
I-70 (zero)
I-77 (1)
I-79 (zero)
I-81 (zero)
I-470 (zero)
US-11 (3)
US-19* (30)
US-22 (zero)
US-30 (zero)
US-33** (22)
US-35 (finally back to zero)
US-40 (11)
US-48 (8)
US-50 (6, but you pick up an extra one in Gorman, Maryland if you want to see them all)
US-52 (30)
US-60 (35)
US-119** (31)
US-219 (22)
US-220 (6)
US-250 (22)
US-340 (now zero)
US-460 (zero)
US-522 (now zero)

More details about my rules:  (1) Hard turning from one street to another and TOTSOs count as one "turn".  (2) Old-fashioned "fork-in-the-road" counting:  Tangent spin-offs and wyes count as one "turn" each.  (Technically, a tangent spin-off is one in the divergent direction and zero in the convergent direction).  The wye has to be obvious.  A newer road or driveway connected on a tangent should not count (and West Virginia has a bunch of these).  (3) Non-stop turning from one street to another counts, but shortened curves from one street to another (ergo, lots of corner houses removed) do not count.  Doesn't matter if the street name changes or not.  (4) Each turn in a one-way pair counts; for instance if the westbound route has 4 turns and the eastbound route has 2 turns (and all of them are different turns) all 6 of them get counted.  (5) Bypasses that turn away from an original routing count under the "fork-in-the-road" rule.  However, these do not count if the old route has been adjusted to not meet at the tangent.  (6) The "fork-in-the-road" rule does not apply for four-lane roads unless the tangent road is also a four-lane road.  For simplicity, it doesn't matter which road was four-laned first.  (7) Routes exiting the Interstate after a multiplex then turning onto a perpendicular road are only counted as one "turn".  It is actually two in the exit ramp direction and one in the on-ramp direction.

One exception:  Rig Road off of US-220 north of Petersburg follows along the west bank of the South Branch of the Potomac River.   The US-220 bridge was replaced after the 1985 floods, and WVDOH has improved the intersection so that it should be barely disqualified.  But it is still so obvious that you are turning off of the "river road" to cross the bridge that I felt it deserved an exception.

Two-fer:  City View Drive connects to the switchback on US-250 in East Moundsville in such a way that it is virtually tangent with both the [eastbound] and [westbound] lanes.  I would have normally disqualified it as a "newer road", but other aspects of the "fork-in-the-road" rule put in squarely on the list.  Counted as only one "turn".

How about staying on the same "straight road" but needing a TOTSO to do so?  US-52 and US-460 are multiplexed from Blueprince to South Princeton along the Old Cumberland Road path that runs along the north side just up from of the base of East River Mountain.  But Corridor Q veers north topwards Princeton and takes US-460 with it.  US-52 exits Corridor Q and stays on Cumberland Road to get to I-77 at the East River Mountain Tunnel north portal.  When this used to be a stoplight, I would have counted it as a "turn" for both US-460 and US-52 under Rule #6 above.  With the interchange, only US-52 gets a "turn" for the TOTSO.  This actually happens in a lot of other places, but this is the only location in the Mountain State involving US Routes.

*The zig-zag in Fairmont that takes US-19 from Locust Avenue to Jackson Street doesn't count.  But it sure looks like it makes two or three additional "turns".
**The straight movement for US-33/US-119 through the roundabout in downtown Glenville doesn't count.  It's the only one on US Routes remaining in West Virginia (and I don't remember it being there many years ago).

As much as I've yowed about the wyes, I only found two that I would still count as "turns":  US-19 intersection with Sammy Run Road nears Walkersville, and the US-219 intersection with WV-24 in Silver Lake.  The first one is a simple wye, the second one is a complex wye.  Interestingly, WVDOH has converted a number of simple wyes into complex wyes by straightening out the "main road", which eliminates the "turn" from the count.

[Terry Shea]

Keep in mind that the earth is spherical.  Even routes that appear to go straight have unseen turns.

[Dirt Roads]

Keep in mind that the earth is spherical.  Even routes that appear to go straight have unseen turns.

Also vertical curves.  Even the few straight stretches in West Virginia are probably on vertical curves. 

[triplemultiplex]

Perhaps the goal should be to find the route in a given state that has the MOST turns rather than an attempt to catalog them all.

[webny99]

NY 21 has a bunch... let's see:

NY 31 overlap (2)
NY 332 and US 20/NY 5 overlap(s) (3 total)
CR 32 (1)
NY 64 terminus (1)
NY 53 terminus (1)
NY 371 terminus (1)
NY 63 terminus/NY 15 overlap (1)
NY 36 overlap (2)
Total: 12

That's even more than I thought. It's interesting that four different routes terminate at NY 21 at an intersection where staying on NY 21 requires a turn (NY 64, NY 53, NY 371, and NY 63), and two more routes terminate while concurrent with NY 21 (NY 332 and NY 15).

So, you could definitely say that NY 21 is NY's most persistent state route given the way it interacts with those 6 different routes at locations where it could logically terminate, but it always ends up continuing while the other routes are terminated.

[pderocco]

I wouldn't attempt all the routes, or even most routes, in California. The only interesting ones are those with lots of turns. Besides, I have a job. But here are the three most turn-y roads I can find:

CA-1 S to N (22 turns)
Traffic circle in Long Beach
Sepulveda split just N of LAX
End of I-10 in Santa Monica
Begin multiplex with US-101 in Oxnard
US-101 and CA-1 split at Las Cruces
Begin multiplex with CA-246 in Lompoc
End multiplex with CA-246 in Lompoc
Left to avoid Harris Grade Rd N of Lompoc
Right turn at Vandenberg AFB
Start of multiplex with CA-135
Begin multiplex with US-101 in Pismo Beach
End multiplex with US-101 in SLO
Interchange with CA-17 in Santa Cruz
Right turn to get on Mission St in Santa Cruz
Merge into US-101 just past Presidio in San Fran
Split from US-101 in Manzanita
Left turn shortly thereafter
Left turn in Point Reyes Station
Right turn in Point Reyes Station
Left turn onto Valley Ford Rd in Valley Ford
Left turn in Point Arena
Left turn at CA-128

CA-49 S to N (21 turns)
Begin multiplex with CA-140 in Mariposa
End multiplex with CA-140 in Mariposa
Begin multiplex with CA-120 in Moccasin
End multiplex with CA-120 in Chinese Camp
Begin multiplex with CA-108 in Montezuma
End multiplex with CA-108 in Sonora
Left turn in Sonora
CA-12 in San Andreas
End of multiplex with CA-88 in Sutter Hill
CA-16 in Drytown
Right turn before Diamond Springs
Left turn in Diamond Springs
Left turn in Placerville
Left turn in Placerville
Left turn in Placerville
CA-153 in Coloma
Left turn at Old Foresthill Rd in Auburn
Right turn onto Lincoln Wy in Auburn
Right turn off Lincoln Wy in Auburn
Left turn in Nevada City
Right turn in Downieville

CA-89 S to N (16 turns)
Right turn at CA-4
Begin multiplex with CA-88 in Alpine Village
End multiplex with CA-88
Begin multiplex with US-50
Left turn at roundabout in Tahoe City
Left turn at roundabout in Tahoe City
Begin multiplex with I-80 in Truckee
End multiplex with I-80 in Truckee
Begin multiplex with CA-49 in Sierraville
End multiplex with CA-49
Begin multiplex with CA-70 in Blairsden
Right turn in Quincy
End multiplex with CA-70
Begin multiplex with CA-36 in Chester
End multiplex with CA-36
Begin multiplex with CA-44 in Lassen Volcanic Park

There are many places where there used to be a turn, but the road was redesigned so that there is a tight curve with right-of-way over the other roads, so I don't count those. And I only count a traffic circle if the road wouldn't otherwise go straight through.