Double-deck highway map/list

[iBallasticwolf2]

Is there any way that a map of double-deck roadways could be made considering there are very few double-decked highways with both decks being roadways left. I don't know any program that could map double-deck roadways besides Google My Maps.

[vtk]

Theoretically a computer program could analyze map data from a source like OSM, but that's a lot of data to analyze, and to my knowledge nobody has written such a program. It's probably easier just to come up with a list the old fashioned way, and then ask someone nicely to make a pretty map of it.

[iBallasticwolf2]

Theoretically a computer program could analyze map data from a source like OSM, but that's a lot of data to analyze, and to my knowledge nobody has written such a program. It's probably easier just to come up with a list the old fashioned way, and then ask someone nicely to make a pretty map of it.

I was thinking that, I'll try making a list in Google My Maps.

[iBallasticwolf2]

https://www.google.com/maps/d/edit?mid=z-VLEHpOEovg.kLwb3P95an2k&usp=sharing
Here's the list, if anyone wants to add another double-deck structure to the list please tell me where it is and I will add it.
Critea for list:
All structures must be double-deck.
Each deck can have whatever on it as long as it is two decks.
Something like I-10's lower and upper level configuration in San Antonio does NOT count as a double-deck road.

[TravelingBethelite]

I-84 on the Mixmaster Interchange [viaduct] with CT 8 in downtown Watrbury, Connecticut. Eastbound on top, westbound on the bottom. 

[kkt]

I-5 Ship Canal Bridge in Seattle -- do you intend to include this in I-5 Express Lanes?  I only ask because both the S.F.-Oakland Bay Bridge and its Yerba Buena Tunnel are listed.

[iBallasticwolf2]

Added both now.

[Big John]

I-64 in St. Louis

[SD Mapman]

I-229 in St. Joseph MO.

[Bickendan]

Does the pedestrian deck of the Brooklyn Bridge count?

[SSOWorld]

I-280 San Francisco (US-101 to Evans Ave)

Not a freeway or a highway, but Wacker Dr in Chicago puts Express on the Lower, local on the upper.

[vtk]

Does the pedestrian deck of the Brooklyn Bridge count?

If I understand the OP, no, because it doesn't carry motor vehicles.

[Rothman]

I-880!

...

Oh...wait...

[iBallasticwolf2]

Does the pedestrian deck of the Brooklyn Bridge count?

If I understand the OP, no, because it doesn't carry motor vehicles.

Actually it is not a double-decker because the walkway does not cover any part of the roadway. Non-motor vehicle decks are allowed.

[Big John]

W Lake ST, N Wells St downtown Chicago

both over Chicago River, lower deck is roadway, upper deck is the EL

[JakeFromNewEngland]

I-84 on the Mixmaster Interchange [viaduct] with CT 8 in downtown Watrbury, Connecticut. Eastbound on top, westbound on the bottom. 

CT 8 south of the interchange up to Exit 30 is also double decker.

[yanksfan6129]

NJ 21 in Newark just north of where it changes from a surface arterial to a freeway.

[Bickendan]

Does the pedestrian deck of the Brooklyn Bridge count?

If I understand the OP, no, because it doesn't carry motor vehicles.

Actually it is not a double-decker because the walkway does not cover any part of the roadway. Non-motor vehicle decks are allowed.

Arguably it would rule out I-110's elevated bus/carpool lanes between I-105 and I-10 then.

[kj3400]

VA 195 in Richmond? Well that first part of it from I-95.

[rickmastfan67]

Both the Fort Pitt (I-376) and Fort Duquesne (I-279) bridges here in Pittsburgh.

[mhh]

The Whirlpool Rapids Bridge, connecting Niagara Falls, New York with Niagara Falls, Ontario. Automobile traffic on the lower level; trains on the upper level.

https://en.m.wikipedia.org/wiki/Whirlpool_Rapids_Bridge

[briantroutman]

Half credit for PA 248 in Walnutport?

[Duke87]

In the NYC area you also have the LIE directly east of the BQE. And NJ 139, although the upper deck of that one is presently albeit temporarily nonexistent.

An out of town submission: 12th Street Viaduct in Kansas City.

[SSOWorld]

In the NYC area you also have the LIE directly east of the BQE. And NJ 139, although the upper deck of that one is presently albeit temporarily nonexistent.

An out of town submission: 12th Street Viaduct in Kansas City.

One could "count" the BQE itself around Brooklyn Heights but it's more of a tiered highway (the urban equivalent of I-70 through Glenwood Canyon) with a local street/port at base, SB traffic on the second level, NB above it and Brooklyn Heights Promenade topping that, each direction has at least one lane exposed.

The Verrazano-Narrows, 59th Street (Queensboro) Bridge, and the GWB, all have two decks - but the configuration is different in that traffic flows in both directions on both decks.  The Queensboro Bridge had former elevated rail on the upper deck converted to road and add to that the very narrow east-bound "sidewalk" lane (outer roadway - Actually a former trolley line opposite the one now occupied by a rec path on the north side of it).

(EDIT: sorry for the repeat )

[SSOWorld]

Complete different topic, the Silver Line Busway and HOT lanes of the 110 are elevated through the USC campus in LA.

Omaha has W. Dodge Rd - with Express lanes elevated over local lanes.