I only know of one, in New Bern, NC. Do you know of any road interchanges over water? The more complex / more levels the better.
(https://i.ibb.co/S6DLB3d/image.png) (https://ibb.co/qDLZprW)
I-95 at I-395 in Baltimore is completely over water.
https://goo.gl/maps/w1npzq9prvHme75Z9
Here are a few that I've come across:
(https://i.imgur.com/d50FUc4.png)
The terminus of I-110 at US-90 in Biloxi MS.
(https://i.imgur.com/lTu7FDl.png)
I-10 at US-98 near Mobile AL.
(https://i.imgur.com/lVqUkvF.png)
I-395 at I-95 in Baltimore MD (as mentioned above).
Part of I-81 at Front St in Harrisburg PA
https://goo.gl/maps/hgGmBb31U1CVmFYQ9
Quote from: BrianP on October 27, 2020, 11:54:18 AM
Part of I-81 at Front St in Harrisburg PA
https://goo.gl/maps/hgGmBb31U1CVmFYQ9
Here's another Susquehanna example (https://www.google.com/maps/@40.3981542,-77.0081584,17z) just 10 miles north on US 22/322!
Part of I-79 Exit #65 at Neville Island, PA is over the Ohio River:
https://goo.gl/maps/rzjGwLgjwbYY13uK9
SC 30/SC 61 in Charleston (https://www.google.com/maps/@32.7753747,-79.9606525,972m/data=!3m1!1e3!5m1!1e1?hl=en) - partially over water, partially over wetlands.
Washington has a couple examples, maybe more.
I-405 at Bellevue Way is partially built over a small inlet, but the whole area is a huge swamp (Google Maps (https://www.google.com/maps/@47.5805324,-122.1841357,1004m/data=!3m1!1e3)); a bunch of the braided ramps between Bellevue Way and the 405 are over this swamp (if that counts):
(https://i.imgur.com/pZ7KySr.png)
There used to be this thing called the "WSDOT Peninsula", which was this area in Seattle owned by WSDOT, occupied by an abandoned partially-built freeway interchange (for the unbuilt RH Thomson Expressway). It has since been removed (Google Maps):
(https://i.imgur.com/isA45kh.jpg)
(image from Seattle Times (https://www.seattletimes.com/seattle-news/transportation/an-old-highway-520-crossbeam-could-be-urban-ruins-honoring-anti-freeway-activists/) ($))
For British Columbia: depending on how liberal we are being, the BC-91/BC-91A Queensborough Connector interchange straddles the Annacis Channel, just off the Fraser River:
https://www.google.com/maps/@49.1752333,-122.9571551,1082m/data=!3m1!1e3
The second bridge was built in 1997. Prior to this, only the eastern span was there (http://old.globalairphotos.com/images/bc/delta/1992/dlh1992_003.jpg), built as part of Hwy 91's construction in the 1980s (see here, shortly after opening (http://old.globalairphotos.com/large.php?province=BC&city=Delta&area=Northeast&gallery=1987&page=013&size=2)).
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fold.globalairphotos.com%2Fimages%2Fbc%2Fdelta%2F1998%2Fdlh1998_003.jpg&hash=de63f68e31a83b48072ee3a4d3c06315b2452a35)
Part of the Metro Manila Skyway Stage 3 alignment past San Juan and Quezon City runs in the San Juan River, including an onramp onto the northbound highway near the SM City Sta. Mesa mall:
https://www.openstreetmap.org/relation/106569#map=18/14.60442/121.02022
The I-405 / SR 522 interchange in Bothell straddles part of the Sammamish River
(https://i.imgur.com/PKPNlWs.jpg)
Don't forget the near-identical twin to I-95/I-395 in Baltimore, which is I-10/I-310 outside of New Orleans. Not only is this three-level stack built entirely over water, it is built entirely over swamp, and in fact that entire three-level stack connects two of Louisiana's mega swamp bridges (The LaBranche Wetlands Bridge on I-310 and the Bonnet Carre Spillway Bridge on I-10).
You (OP) asked the same question in 2018 here (https://www.aaroads.com/forum/index.php?topic=22849).
Quote from: 1 on October 27, 2020, 03:23:23 PM
You (OP) asked the same question in 2018 here (https://www.aaroads.com/forum/index.php?topic=22849).
Apologies for that. Not my intention to shitpost or be redundant.
On the flip side, there are several mentioned here not mentioned in the first thread. So the duplication wasn't entirely in vain :-D
Here's another one not mentioned in the 2018 thread: The I-64/I-664 interchange in Hampton VA (https://www.google.com/maps/@37.0308142,-76.3796571,923m/data=!3m1!1e3!5m1!1e1?hl=en) is partially over some water & wetlands.
The I-195/I-295/NJ-29 interchange near Trenton is partially over water. More of a swamp/wetlands actually, but part of one loop and all of a "straight ramp" is on stilts.
I-74 at I-280 in Quad Cities has two of the north side ramps extending a little bit into the Rock River. (https://goo.gl/maps/fK5iBEnKGrxmURS26)
I-255 at IL 157 has a loop ramp on structure that crosses a channel of some sort twice. (https://goo.gl/maps/yLqmFitV8fAH4xFt9)
Quote from: Revive 755 on October 27, 2020, 10:21:56 PM
I-255 at IL 157 has a loop ramp on structure that crosses a channel of some sort twice. (https://goo.gl/maps/yLqmFitV8fAH4xFt9)
It's definitely not quite on the same level as some of the others here, but I always thought it was interesting that the loop ramp from Epcot Center Drive to Buena Vista Drive at Disney World used to cross a drainage channel twice. (It's gone now, though.)
(https://i.imgur.com/Gi4ym9g.png)
https://www.google.com/maps/@38.794351,-77.0559013,971m/data=!3m1!1e3
Just north of me, Capital Beltway and US 1.
https://www.google.com/maps/place/41%C2%B045'38.0%22N+89%C2%B047'01.3%22W/@41.7605603,-89.7858712,783m/data=!3m2!1e3!4b1!4m5!3m4!1s0x0:0x0!8m2!3d41.7605603!4d-89.7836825?hl=en-US
One of the Trumpet ramps at IL I-88's Exit 36 goes over a creek. The interchange is also near the Rock River, but the roadways do not cross the river at the exact spot of the interchange
The Tumpet interchange itself is essentially a long exit ramp to US 30 at a Wal-Mart Distribution Center, west of Sterling
The Fort Hill interchange on I-64 in Charleston, West Virginia (Exit 58A/US-119) has its northernmost ramps over the Kanawha River. The next exit (Exit 58B/Virginia Street West) has its southernmost ramps starting right over the northern bank of the river. Hop over the next exit, and the split for I-64/I-77 (which is actually Exit 101 on the I-77 numbering) occurs over the smaller Elk River. [Sorry, I would post the link but Ducky doesn't keep the coordinates
Fort Hill Interchange (using Ducky):
https://duckduckgo.com/?q=I-64+at+US-119+wv&t=h_&ia=web&iaxm=maps&strict_bbox=0&bbox=38.00491138058485%2C-81.35686725211485%2C37.995928227743654%2C-81.33839414788517 (https://duckduckgo.com/?q=I-64+at+US-119+wv&t=h_&ia=web&iaxm=maps&strict_bbox=0&bbox=38.00491138058485%2C-81.35686725211485%2C37.995928227743654%2C-81.33839414788517)
I'm not quite sure, but I believe that the southernmost ramps for Virginia Street exit was mostly over water when they were constructed. The small river channel for Magic Island was filled in to create a park, and it looks like this extends eastward under the Interstate. I'm pretty sure that they also raised the elevation of Magic Island when the Corps of Engineers replaced the Winfield Locks with a bypass and raised the river elevation back in 1997. Before all of this, Magic Island was just barely above the mean river elevation and would frequently disappear whenever water levels rose (or were held back).
Quote from: CardInLex on October 26, 2020, 07:23:21 PM
I-95 at I-395 in Baltimore is completely over water.
https://goo.gl/maps/w1npzq9prvHme75Z9
I can't think of this interchange without also thinking of this movie scene where the 4th verse of the Star Spangled Banner is being sung at the start of a Super Bowl that is about to get nuked
https://www.youtube.com/watch?v=WKiBrm5_fjQ
I-96 and M-6 just east of the Grand Rapids airport is partially over the Thornapple River: https://www.google.com/maps/@42.8883035,-85.489125,1158m/data=!3m1!1e3?hl=en
I-84/US30 at I-5:
https://goo.gl/maps/ffcM4Srx6c7jw2Ln7
Morrison Bridge at I-5:
https://goo.gl/maps/dsnaMyt4Aixr1Gyx7
I-5 at what would have been I-80N (and US 26) [Mt Hood Frwy] would have qualified:
https://goo.gl/maps/DBQYMEgQM14pqiPZ6
US 26 at OR 99E:
https://goo.gl/maps/ri6KUGHEuyq8Qj4A6
I-5 at SW Nyberg Rd (technical):
https://goo.gl/maps/UxXRNbZE9KykDBGX9
Yanwu Bridge, Xiamen
I found another one in PA on 309:
https://goo.gl/maps/Uwfuxr8zdCoRpy9z9
This may not necessarily be what we're after, but there are retention ponds underneath much of the Spaghetti Bowl (I-15/I-80/SR 201) in Salt Lake City:
https://goo.gl/maps/iBpVhg7eMnwno6XN8
Quote from: US 89 on December 03, 2020, 12:42:09 PM
This may not necessarily be what we're after, but there are retention ponds underneath much of the Spaghetti Bowl (I-15/I-80/SR 201) in Salt Lake City:
https://goo.gl/maps/iBpVhg7eMnwno6XN8
That counts:)
Along the I-710 in MA, there are several interchanges that are partially over the LA River, notability the I-105, CA-91, and I-405 interchanges.
The interchange between the Throgs Neck Bridge (I-295) and the Cross Island Parkway in New York is partly over water:
https://www.google.com/maps/@40.7891972,-73.7930573,875m/data=!3m1!1e3
I-10/I-55 interchange near La Place, LA. This is the southern terminus of I-55. The very first 22.6 miles of I-55 is elevated over water-filled swamps, and also has US 51 running concurrent here as well. The original US 51 acts as a service road on the east side of the elevated freeway. It is known as "the low road."
https://www.google.com/maps/@30.0874996,-90.4407029,3a,75y,90.3h,91.38t/data=!3m4!1e1!3m2!1snA3We0SNiBbct3Gfb6Vmtw!2e0
I-10 has another interchange with US 90/98 near Mobile over water-
https://www.google.com/maps/@30.6921979,-88.0242377,828m/data=!3m1!1e3
Quote from: cjk374 on December 12, 2020, 10:46:18 AM
I-10/I-55 interchange near La Place, LA. This is the southern terminus of I-55. The very first 22.6 miles of I-55 is elevated over water-filled swamps, and also has US 51 running concurrent here as well. The original US 51 acts as a service road on the east side of the elevated freeway. It is known as "the low road."
https://www.google.com/maps/@30.0874996,-90.4407029,3a,75y,90.3h,91.38t/data=!3m4!1e1!3m2!1snA3We0SNiBbct3Gfb6Vmtw!2e0
I assuming that this interchange was mentioned in the thread about substandard Interstate-to-Interstate connections. If not, it should be. EB I-10 to NB I-55 traffic has to pass through 2 traffic lights and an uncontrolled left turn, as well as access to a gas station. It's rather Breezewood-like.
Quote from: theline on December 14, 2020, 07:21:52 PM
Quote from: cjk374 on December 12, 2020, 10:46:18 AM
I-10/I-55 interchange near La Place, LA. This is the southern terminus of I-55. The very first 22.6 miles of I-55 is elevated over water-filled swamps, and also has US 51 running concurrent here as well. The original US 51 acts as a service road on the east side of the elevated freeway. It is known as "the low road."
https://www.google.com/maps/@30.0874996,-90.4407029,3a,75y,90.3h,91.38t/data=!3m4!1e1!3m2!1snA3We0SNiBbct3Gfb6Vmtw!2e0
I assuming that this interchange was mentioned in the thread about substandard Interstate-to-Interstate connections. If not, it should be. EB I-10 to NB I-55 traffic has to pass through 2 traffic lights and an uncontrolled left turn, as well as access to a gas station. It's rather Breezewood-like.
Not an excuse for the missing freeway movement - but long distance I-10 EB Traffic will have used I-12 anyway and bypassed this section.
I'd call it a low-level offender
Quote from: theline on December 14, 2020, 07:21:52 PM
Quote from: cjk374 on December 12, 2020, 10:46:18 AM
I-10/I-55 interchange near La Place, LA. This is the southern terminus of I-55. The very first 22.6 miles of I-55 is elevated over water-filled swamps, and also has US 51 running concurrent here as well. The original US 51 acts as a service road on the east side of the elevated freeway. It is known as "the low road."
https://www.google.com/maps/@30.0874996,-90.4407029,3a,75y,90.3h,91.38t/data=!3m4!1e1!3m2!1snA3We0SNiBbct3Gfb6Vmtw!2e0
I assuming that this interchange was mentioned in the thread about substandard Interstate-to-Interstate connections. If not, it should be. EB I-10 to NB I-55 traffic has to pass through 2 traffic lights and an uncontrolled left turn, as well as access to a gas station. It's rather Breezewood-like.
Wonder what the traffic count is making that movement. Google (iPad version of Google Maps) shows a total of 3 cars along that path, although I'd guess the truck/trailer in the right lane at the second light isn't turning left ahead. Better hurry thru that uncontrolled left turn-there's one car about a mile away on the low road to worry about. If only Breezewood were that easy to get through...
Quote from: davewiecking on December 14, 2020, 08:55:31 PM
Quote from: theline on December 14, 2020, 07:21:52 PM
Quote from: cjk374 on December 12, 2020, 10:46:18 AM
I-10/I-55 interchange near La Place, LA. This is the southern terminus of I-55. The very first 22.6 miles of I-55 is elevated over water-filled swamps, and also has US 51 running concurrent here as well. The original US 51 acts as a service road on the east side of the elevated freeway. It is known as "the low road."
https://www.google.com/maps/@30.0874996,-90.4407029,3a,75y,90.3h,91.38t/data=!3m4!1e1!3m2!1snA3We0SNiBbct3Gfb6Vmtw!2e0
I assuming that this interchange was mentioned in the thread about substandard Interstate-to-Interstate connections. If not, it should be. EB I-10 to NB I-55 traffic has to pass through 2 traffic lights and an uncontrolled left turn, as well as access to a gas station. It's rather Breezewood-like.
Wonder what the traffic count is making that movement. Google (iPad version of Google Maps) shows a total of 3 cars along that path, although I'd guess the truck/trailer in the right lane at the second light isn't turning left ahead. Better hurry thru that uncontrolled left turn-there's one car about a mile away on the low road to worry about. If only Breezewood were that easy to get through...
I can't find an AADT for that section of US-51 on the LaDOTD site–either a Blanket Traffic Count (every ten years) or a Routine Traffic Count (every three years). Nothing between the Pilot truck stop and Frenier Road.
I-5 and California 54 in San Diego has ramps over the Sweetwater River, but partially because the 54's carriageways are also split by the waterway: Westbound is north of the river; Eastbound is south of the river, between I-5 and I-805
Another good one: the entrance to Ssuk-som from the Chungsong Bridge over the Taedong River in Pyongyang. It's a parclo with all the ramps over water at some point.
https://goo.gl/maps/SDMv2KPnraW3x6Vf8
Part of the US 15/US 58/VA 49 partial interchange (https://www.google.com/maps/@36.6346494,-78.539833,700m/data=!3m1!1e3) in Clarksville, VA (namely the ramp from WB US 58 to the US 58 BYPASS) is over the John H. Kerr Reservoir.
Also, while this is obviously not an interchange, VA 175 has an intersection (https://www.google.com/maps/@37.937646,-75.3815389,3a,75y,237.23h,81.76t/data=!3m7!1e1!3m5!1su3LVQdj-i0VDUxRwNgvzLQ!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3Du3LVQdj-i0VDUxRwNgvzLQ%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D203.99324%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192) with Marsh Island Road over the southern part of Chincoteague Bay; Marsh Island Road is the only access to that island, and is an old alignment of VA 175.
Does the US-50 at I-5 Interchange count as interchange over water this is given that US-50 goes over the Sacramento river before reaching I-5.
(https://media.bizj.us/view/img/11646601/picture1*1200xx1656-932-0-67.png)
Massachusetts route 3 transitions from Memorial Drive in Cambridge to the Longfellow Bridge partly over water.
https://goo.gl/maps/2hX5HqgNH9jaSRm37 (https://goo.gl/maps/2hX5HqgNH9jaSRm37)
W Ocean Blvd in Long Beach CA transitions into I-710 over the LA River. At this point the LA River is a full of sea water, not like most of its length which is dry 11 months out of the year.
You could say the same for the I-405 to I-605 interchange going over the San Gabriel River.
I-66 over the Potomac, just outside DC.
https://goo.gl/maps/xup9ba1ruMs1qZnP8 (https://goo.gl/maps/xup9ba1ruMs1qZnP8)
Quote from: bing101 on December 27, 2022, 11:45:44 AM
Does the US-50 at I-5 Interchange count as interchange over water this is given that US-50 goes over the Sacramento river before reaching I-5.
(https://media.bizj.us/view/img/11646601/picture1*1200xx1656-932-0-67.png)
That isn't "over water". It has to have ramps that also cross the water.
Quote from: pderocco on December 27, 2022, 01:22:59 PM
I-66 over the Potomac, just outside DC.
https://goo.gl/maps/xup9ba1ruMs1qZnP8 (https://goo.gl/maps/xup9ba1ruMs1qZnP8)
Yes, but note that this is "inside DC" .
Quote from: MCRoads on December 05, 2020, 02:02:52 AM
Along the I-710 in LA, there are several interchanges that are partially over the LA River, notability the I-105, CA-91, and I-405 interchanges.
FTFY
The South Interchange in Little Rock (I-30 / I-440 / I-530) is not fully over water but much of it is on a flood plain and is elevated, specifically on the eastern side.
The ramps on the south side of the MN 101/Wright CSAH 36 interchange (where Rogers, Otsego, and St. Michael, MN come together) cross the Crow River.
https://www.google.com/maps/@45.2285407,-93.5536854,16.02z
Quote from: pderocco on December 27, 2022, 01:00:13 PM
Massachusetts route 3 transitions from Memorial Drive in Cambridge to the Longfellow Bridge partly over water.
https://goo.gl/maps/2hX5HqgNH9jaSRm37 (https://goo.gl/maps/2hX5HqgNH9jaSRm37)
The ramps connecting Route 1 and I-93 are partially over water too.
https://goo.gl/maps/b4pC9josevA9qi6d9 (https://goo.gl/maps/b4pC9josevA9qi6d9)
The ramps connecting rhe Mass Pike (I-90) and I-95/MA-128 are constructed across the Charles River.
I-110/ US 90 trumpet ramps in Biloxi MS go over the Gulf of Mexico.