Crossing the same body of water twice or more

[golden eagle]

I-55 crosses the Mississippi at Memphis and then in the St. Louis area. I-40 and U.s. 70 crosses the Tennessee River twice, first in western Tennessee and later in the eastern part. I-285 crosses the Chattahoochee twice, to the north and west of Atlanta, while I-275 crosses the Ohio twice on either side of Cincinnati.

[Ian]

I-87 crosses the Hudson River on the Tappan Zee Bridge and then again in the Glens Falls area.

[huskeroadgeek]

I-80 crosses the Platte River 3 times in Nebraska, then crosses the South Platte River in Nebraska and the North Platte River in Wyoming. Interestingly by the time I-80 crosses the North Platte River in Wyoming, it is a fairly minor river. I-70 crosses the Missouri River twice in Missouri. I-90 crosses the Missouri River in South Dakota and then crosses the Jefferson, Madison and Gallatin Rivers in Montana just above where they meet to form the Missouri.

[corco]

Idaho 55 crosses the Payette River 7 times in about 80 miles
- once at the south side of Horseshoe Bend
- once just north of Horseshoe Bend by Gardena
- once just north of Banks
- once just north of Smith's Ferry (on the historic Rainbow Bridge)
- once on the south side of Cascade
- once on the north side of Cascade just before it gets dammed up at the Cascade reservoir
- once in McCall on the west side of town

US-95 crosses the Salmon 3 times between Riggins and Whitebird Idaho

Frequent river crossings happen pretty often in mountainous areas, since it's often most efficient to build the road along the river. There's a ton of same-river crossings on I-70 in Western Colorado, too.

[SP Cook]

I 64 and the Kanawha River:

south side to north side between MP 44 and 45.

north side to south side between MP 53 and 53.

south side to north side between 58 and 59.

(then is multiplexed with I-77 and begins using 77 based MPs.)

north side to south side is the off-ramp of exit 98, which exists only south/east bound.

south side to north side is the on-ramp of exit 98, which permits entry only north/west bound.

north side to south side between MP 96 and 95.

--

US 119/US 52 which is Corridor G, and the Tug Fork of the Big Sandy River (which is the border between WV and KY) crosses the river four times just north of Williamson, creatating two short "enclaves" of the highway in Kentucky, before finally entering Kentucky at Williamson/South Williamson and remaining.

[huskeroadgeek]

Frequent river crossings happen pretty often in mountainous areas, since it's often most efficient to build the road along the river. There's a ton of same-river crossings on I-70 in Western Colorado, too.

I count 5 crossings for I-70 over the Colorado River.
It's actually pretty common for minor highways to cross minor creeks and streams a number of times anywhere. More than one crossing for major highways over major rivers are more rare though outside of mountainous areas.

[bugo]

US 64 crosses the Arkansas River 5 times.

[Duke87]

I-91 crosses the Connecticut River twice.
I-89 crosses the White River three times.

[mapman]

I-5 crosses the Sacramento River 8 times between Yreka and Sacramento, CA. 

[Revive 755]

IL 100 crosses the Illinois River three times, first on a drawbridge at Hardin, then on another drawbridge near Detroit, then again at Beardstown.

Both I-44 and MO 30 cross the Meramec River twice.

I-24 crosses both the Tennessee and Cumberland Rivers twice.

[Jim]

I don't know how many times I-90 in Montana crosses the Clark Fork, but enough that I remember it being a significant number of times from my last trip through there back in '01.

[huskeroadgeek]

I don't know how many times I-90 in Montana crosses the Clark Fork, but enough that I remember it being a significant number of times from my last trip through there back in '01.

I'd forgotten about that one-I noticed that too on a trip I made through there in 2004. If I count correctly, I-90 crosses the Clark Fork River 17 times. That's over a distance of about 175 miles from the first crossing just N. of Exit 208 E. of Anaconda, and the last crossing just E. of Exit 33 at St. Regis. That may be a record for the most number of times one highway crosses a river, at least for an interstate. I doubt you'd find very many highways anywhere crossing a river that many times over a distance of only 175 miles either.

[NJRoadfan]

both I-80 and US-46 cross the Passaic River 4 times. While not a body of water, US-46 manages to go underneath the Garden State Parkway 3 times with not one full interchange.

[Hot Rod Hootenanny]

In Columbus, I-670 crosses the Scioto River 3 times (between I-70 west and 315) and I-270 loops around and crosses the Scioto River, Alum Creek, and Big Walnut Creek twice.

[BigMattFromTexas]

Knickerbocker Rd (FM 584) crosses Lake Naswothy (nastywater) 3 times.
BigMatt

[mightyace]

I-40 and U.s. 70 crosses the Tennessee River twice, first in western Tennessee and later in the eastern part.

I-40 also crosses the Caney Fork River 5 times in less than 5 miles between Gordonsville and Buffalo Valley, TN.

[Bickendan]

I-5 crosses the South Fork Umpqua River five times (and the North Fork once) and the Willamette five times -- the Coast Fork twice (Cottage Grove, south of Creswell) and the river proper three times (Eugene, Wilsonville, Portland).

OR 99 hits the South Fork Umpqua seven times (and the North Fork once) and the Rogue three times.

[Brandon]

I-55 crosses the Des Plaines River twice.  Once between Arsenal Rd and Bluff Rd (Mile 246) and then again between La Grange Rd (US-12/20/45) and First Ave (IL-171) (Mile 280-81).

[topay]

A handful here in Virginia:

I-295 crosses the Chickahominy River twice between the northern I-95 and eastern I-64 interchanges.

US 60 crosses the James River twice (3 times if you count the Hampton Roads Bridge Tunnel as a James River crossing), one between Amherst and Buckingham (Nelson - Appommatox County Line), and once in the City of Richmond (Manchester Bridge).

US 460 crosses the New River a few times between the WV Line and Blacksburg.

VA 3 crosses the Rappahannock River twice: once in Fredericksburg, and once between Lancaster and Middlesex Counties.

[froggie]

Here's a little-known and rare one:  US 50 crosses the Potomac twice.  Technically three times, but I'm discounting the fact that there are two branches of the upper Potomac, of which US 50 crosses both.  The northern branch is considered the "primary", as that was the one used for the Maryland/Virginia border.  US 50 crosses it near Gorman, MD, then crosses the main Potomac again on the Roosevelt Bridge into D.C.

The only other route that does so is, of course, I-495.

[rawmustard]

As far as the Interstates in Michigan go, it's hard for me to fathom that anything could beat I-96's four crossings of the Grand. I'm more than willing to be corrected if I'm wrong.

[RustyK]

I don't know how many times I-90 in Montana crosses the Clark Fork, but enough that I remember it being a significant number of times from my last trip through there back in '01.

Looking at the map, it's 11 - the river dips south of Missoula (unless it comes back up north from there, but I don't think it does, I don't remember it anywway.  I enjoy that all 11 are marked with the sign for Clark Fork - my wife and I remarked about it on the way out to MN last month.  (drove I-90 through there from WA to MN)
I'd forgotten about that one-I noticed that too on a trip I made through there in 2004. If I count correctly, I-90 crosses the Clark Fork River 17 times. That's over a distance of about 175 miles from the first crossing just N. of Exit 208 E. of Anaconda, and the last crossing just E. of Exit 33 at St. Regis. That may be a record for the most number of times one highway crosses a river, at least for an interstate. I doubt you'd find very many highways anywhere crossing a river that many times over a distance of only 175 miles either.

[RoadWarrior56]

I seem to recall that I-15 crosses the Missouri River more than once in Montana.

[dfilpus]

I seem to recall that I-15 crosses the Missouri River more than once in Montana.

I count six times on Google Maps.

[Brandon]

US-61 crosses the Mississippi River 4 times (maybe a record for signed routes crossing the Mississippi River below Minneapolis).
Hastings, MN
LaCrosse, WI
Dubuque, IA
Memphis, TN

US-67 crosses the Mississippi twice, both times from the same state.
Rock Island, IL
Alton, IL

US-52 crosses the Mississippi three times.
Minneapolis, MN
St. Paul, MN
Savanna, IL