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rickmastfan67
Joined: 14 Jul 2008
Posts: 569
Location: Pittsburgh, PA
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 Posted: Sun Apr 12, 2009 3:14 am Post subject: CA: I-10 Spur? |
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According to Wikipedia (I know it isn't always the best source), there is a I-10 spur in LA.
| Quote: | Spur to US 101
The legislative definition of Route 10 includes a spur from Interstate 5 (the Golden State Freeway) west to U.S. Route 101 (the Santa Ana Freeway) near downtown Los Angeles. This section of roadway, the westernmost part of the San Bernardino Freeway, was part of the original San Benardino Freeway, carrying U.S. Route 60, U.S. Route 70 and U.S. Route 99 long before the Golden State Freeway opened. It was added to the Interstate Highway System by 1958 as Interstate 110, but in 1968 it was removed from the system, becoming part of the definition of Route I-10.
This road is signed only for the roads it feeds into - US 101 north westbound and I-10 east eastbound. It has no interchanges except its ends. The exit numbers for I-10 is to follow the signed route of I-10 west along with I-5 south, but one exit on Route 10 - the eastbound for State Street and Soto Street before it merges onto I-10 eastbound - is numbered (as exit 19).[8]
There is no access on this spur from Route 10 eastbound to I-5 northbound. [7] |
If it's mileage is still officially part of I-10, I think we should add it. |
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admin
Site Admin
Joined: 13 Jul 2008
Posts: 1104
Location: Maryland
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| Posted: Tue Apr 14, 2009 1:56 pm Post subject: Re: CA: I-10 Spur? |
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The same Wikipedia page also says:
| Quote: | | At the East LA Interchange, a short piece of the San Bernardino Freeway west of I-5 is part of the legislative definition of Route 10, but does not carry Interstate 10. |
So the state calls it (unsigned) CA 10?
| Quote: | It was added to the Interstate Highway System by 1958 as Interstate 110, but in 1968 it was removed from the system, becoming part of the definition of Route I-10.
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So it is I-10 but not part of the I system?
It seems like CalTrans might call it "10" in some form, but I can't draw a conclusion about what FHWA/AASHTO says. |
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Bickendan
Joined: 29 Jul 2008
Posts: 450
Location: Portland, OR
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| Posted: Tue Apr 14, 2009 2:51 pm Post subject: |
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I'll see what Daniel Faigin says about it, but if memory serves, that short portion between US 101 and I-5 is officially I-10 and unsigned, while the Santa Monica/Rosa Parks Freeway portion of I-10 officially ends at the East LA Interchange AND the I-5/I-10 duplex is officially only I-5 but signed as both to maintain a concurrent I-10 between both segments.
In other words, it seems I-10 is two discreet and discontinuous segments in California. |
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Bickendan
Joined: 29 Jul 2008
Posts: 450
Location: Portland, OR
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| Posted: Tue Apr 14, 2009 4:08 pm Post subject: |
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| Daniel Faigin wrote: | From Route 1 in Santa Monica to Route 5 near Seventh Street in Los Angeles.
From Route 101 near Mission Road in Los Angeles to the Arizona state line at the Colorado River via the vicinity of Monterey Park, Pomona, Colton, Indio, and Chiriaco Summit, and via Blythe. |
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admin
Site Admin
Joined: 13 Jul 2008
Posts: 1104
Location: Maryland
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| Posted: Tue Apr 14, 2009 4:16 pm Post subject: |
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| The CalTrans I-10 exit guide says "Shared alignment with I-5 NB/SB". |
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Bickendan
Joined: 29 Jul 2008
Posts: 450
Location: Portland, OR
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| Posted: Tue Apr 14, 2009 6:51 pm Post subject: |
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| admin wrote: | | The CalTrans I-10 exit guide says "Shared alignment with I-5 NB/SB". |
As does the Thomas Guide maps and in-the-field signing. Which, I think for our purposes, is what matters.
However, it looks like as though the official route definitions disagree, leaving a mile or so gap in I-10 along I-5. Ignoring this problem, the question is how to deal with the portion of I-10 between US 101 and I-5. May I suggest ca.i010spur.ggm? |
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admin
Site Admin
Joined: 13 Jul 2008
Posts: 1104
Location: Maryland
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| Posted: Tue Apr 14, 2009 11:31 pm Post subject: |
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| There's nothing to do until you can confirm a FHWA or AASHTO approval. If you check the mileage against the FWHA log, what do you find? |
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andytom
Joined: 14 Jul 2008
Posts: 199
Location: Beaverton, OR
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| Posted: Wed Apr 15, 2009 1:23 pm Post subject: |
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| Bickendan wrote: | | admin wrote: | | The CalTrans I-10 exit guide says "Shared alignment with I-5 NB/SB". |
As does the Thomas Guide maps and in-the-field signing. Which, I think for our purposes, is what matters.
However, it looks like as though the official route definitions disagree, leaving a mile or so gap in I-10 along I-5. Ignoring this problem, the question is how to deal with the portion of I-10 between US 101 and I-5. May I suggest ca.i010spur.ggm? |
The legislative definitions do this all over the place (anyplace there is a multiplex) in CA. One piece of roadway carries one route number legislatively. Route 1 comes in 5 or 6 pieces because of all CA-1's multiplexes with US-101 (route 101 which comes in 2 pieces split by the Golden Gate Br <not included in the legislated hwy system>). If you want to include this, it may be better to do it in the state route freeways group as SBF. CA-60 can probably scarf up the small piece of the SMF between I-5 and the signed turnoff for I-10.
--Andy |
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oxlahun
Joined: 28 Jul 2008
Posts: 63
Location: Easthampton MA
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| Posted: Tue Nov 03, 2009 1:28 pm Post subject: |
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I was going to post that the Wikipedia page is incorrect: there is actually a westbound ramp to Mission Rd before the SBF merges with northbound US101. But sometime in the past 6 months, someone updated the entry to match reality.
I'm curious where the spur designations for I-895 in Baltimore came from; this seems like it could be one of those cases. |
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Bickendan
Joined: 29 Jul 2008
Posts: 450
Location: Portland, OR
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| Posted: Thu Nov 05, 2009 5:00 pm Post subject: |
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| I could always toss it in as ca.casbf.ggm and have it placed in the Select Set. |
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