[Talk-us-massachusetts] Talk-us-massachusetts Digest, Vol 49, Issue 6

Alan & Ruth Bragg alan.ruth.bragg at gmail.com
Mon Dec 21 20:20:33 UTC 2020 

MassDOT has a nice file showing the location of Bridges and Culverts at
https://geo-massdot.opendata.arcgis.com/datasets/8fa67bf47651417283813a29bfc31545_0
I've been mapping a lot of streams in Maine recently and Maine GIS has a
similar file which I find quite useful.
It's not always easy to distinguish between a bridge and a culvert with
satellite imagery.
Alan


On Mon, Dec 21, 2020 at 2:35 PM Yury Yatsynovich <yury.yatsynovich at gmail.com>
wrote:

> Greetings!
> I've been recently working on a MassGIS hydro layer (major streams),
> slowly moving from the West to the East of MA and adding streams one by one
> (e.g. https://www.openstreetmap.org/changeset/95976341).
> Overall, the layer is useful as a guidance on the streams' directions and
> their names, but intersections of streams with roads (bridges/culverts) are
> usually not accurately located, so a lot of manual edits are needed.
> Best,
> Yury
>
> On Mon, Dec 21, 2020 at 1:33 PM <
> talk-us-massachusetts-request at openstreetmap.org> wrote:
>
>> Send Talk-us-massachusetts mailing list submissions to
>>         talk-us-massachusetts at openstreetmap.org
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>>         https://lists.openstreetmap.org/listinfo/talk-us-massachusetts
>> or, via email, send a message with subject or body 'help' to
>>         talk-us-massachusetts-request at openstreetmap.org
>>
>> You can reach the person managing the list at
>>         talk-us-massachusetts-owner at openstreetmap.org
>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of Talk-us-massachusetts digest..."
>>
>>
>> Today's Topics:
>>
>>    1. Adding McKinstry Brook (Peter Cooper Jr.)
>>    2. Re: Adding McKinstry Brook (Greg Troxel)
>>    3. Re: Adding McKinstry Brook (Greg Troxel)
>>    4. Re: Adding McKinstry Brook (Peter Cooper Jr.)
>>    5. Re: Adding McKinstry Brook (Wayne Emerson, Jr.)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Mon, 21 Dec 2020 12:26:48 -0500
>> From: "Peter Cooper Jr."
>>         <pete-openstreetmap-massachusetts-list at cooperjr.name>
>> To: talk-us-massachusetts at openstreetmap.org
>> Subject: [Talk-us-massachusetts] Adding McKinstry Brook
>> Message-ID: <2fde45ae-0695-520f-0be9-ea46dafacda5 at cooperjr.name>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>>
>> Hello everyone! I'm definitely an "armchair mapper" here, just trying to
>> make maps in my general area a bit more accurate. (I'm mainly hoping
>> that since the big mappers often get data from OSM, that if I fix the
>> problems there eventually other maps won't be as likely to have my road
>> in the wrong spot and stuff like that.)
>>
>> But, I thought I'd work on adding McKinstry Brook, which goes through my
>> property. I tried tracing it from some combination of the USGS
>> Topographic Map and the MassGIS 2019 Orthos (though some places it's
>> pretty hard to see exactly where the stream is through the trees).
>>
>> So first, here's my changeset and I'd like some level of review that I
>> didn't screw something up terribly:
>> https://www.openstreetmap.org/changeset/96205699
>>
>> Secondly, after I did this I started looking at info on the McKinstry
>> Brook Wildlife Management Area (to see if I might be able to improve
>> that some too), I went to this page on the state's site
>> <
>> https://www.mass.gov/info-details/list-of-wildlife-management-areas-by-district#central-district->
>>
>> and clicked on the "go to map" for "Mckinstry Brook WMA". This takes me
>> to some sort of MassWildlife GIS map
>> <
>> https://mass-eoeea.maps.arcgis.com/apps/webappviewer/index.html?id=3a7c475cb6d54578ba8c7149d885ad30&find=MCKINSTRY%20BROOK%20WMA>,
>>
>> which seems to already have McKinstry brook on it. So, I'm wondering if
>> the data from that map is public-domain and could be used, and if so if
>> there's some way to import the location of the brook (and if so, if it
>> might be more accurate than what I tried to do tracing from imagery).
>>
>> Thanks,
>> --
>> Peter C.
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Mon, 21 Dec 2020 12:41:56 -0500
>> From: Greg Troxel <gdt at lexort.com>
>> To: "Peter Cooper Jr. via Talk-us-massachusetts"
>>         <talk-us-massachusetts at openstreetmap.org>
>> Subject: Re: [Talk-us-massachusetts] Adding McKinstry Brook
>> Message-ID: <rmiy2hrxdi3.fsf at s1.lexort.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>>
>> MassGIS has a lot of data layers available.  They are basically public
>> domain, with some odd labeling as CC-BY in some places, but when asked
>> it is public domain with attribution requested.  It is polite to list
>> MassGIS as source in your changeset comment when using MassGIS data.  We
>> are usually briefer than their listed form and just say "MassGIS
>> layername" and leave out the "Commonwealth of Massachusetts EOTSS".
>>
>>   https://www.mass.gov/service-details/massgis-frequently-asked-questions
>>
>> There is also some USGS hydrography data.  My very very hazy impression
>> is that the MassGIS data is probably better.
>>
>> If you are comfortable munging python code and dealing with shapefiles,
>> you can probably get to the point of using these sources.  Probably JOSM
>> can read shapefiles, in which case you could do this without coding.  If
>> you aren't using JOSM and you want to do this sort of editing, I suggest
>> learning it.
>>
>> If you just want to add one stream that you are cross-checking with
>> imagery and personal knoweldge, I'd say go for it and don't worry too
>> much.
>>
>> If you start to think about "import all the streams in MA", that's an
>> import, needs plan/discussion/approval and it's at least 10x harder than
>> you think.
>>
>> Have a look at these pages:
>>   https://docs.digital.mass.gov/massgis
>>   https://www.mass.gov/orgs/massgis-bureau-of-geographic-information
>>   https://docs.digital.mass.gov/dataset/massgis-data-layers
>>
>> https://docs.digital.mass.gov/dataset/massgis-data-massdep-hydrography-125000
>>
>> I haven't really looked into this layer, but it's on my semi-infinite
>> TODO list.
>>
>> Hope this helps and feel free to ask me more questions.
>> -------------- next part --------------
>> A non-text attachment was scrubbed...
>> Name: signature.asc
>> Type: application/pgp-signature
>> Size: 194 bytes
>> Desc: not available
>> URL: <
>> http://lists.openstreetmap.org/pipermail/talk-us-massachusetts/attachments/20201221/8568d5d1/attachment-0001.sig
>> >
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Mon, 21 Dec 2020 12:58:32 -0500
>> From: Greg Troxel <gdt at lexort.com>
>> To: "Peter Cooper Jr. via Talk-us-massachusetts"
>>         <talk-us-massachusetts at openstreetmap.org>
>> Subject: Re: [Talk-us-massachusetts] Adding McKinstry Brook
>> Message-ID: <rmitusfxcqf.fsf at s1.lexort.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>>
>> I downloaded the hydro25k layer and looked at it in QGIS.  It indeed
>> looks useful.  If you want to send me a private mail with a geo link to
>> where you are I can see about pulling that one stream out of it into osm
>> format for you, if that seems daunting to you (quite understandable).
>>
>> But see this and maybe you can do it yourself:
>>
>>
>> https://wiki.openstreetmap.org/wiki/Software_comparison/Import_a_shapefile
>> -------------- next part --------------
>> A non-text attachment was scrubbed...
>> Name: signature.asc
>> Type: application/pgp-signature
>> Size: 194 bytes
>> Desc: not available
>> URL: <
>> http://lists.openstreetmap.org/pipermail/talk-us-massachusetts/attachments/20201221/a48466a1/attachment-0001.sig
>> >
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Mon, 21 Dec 2020 13:09:58 -0500
>> From: "Peter Cooper Jr."
>>         <pete-openstreetmap-massachusetts-list at cooperjr.name>
>> To: Talk-us-massachusetts <talk-us-massachusetts at openstreetmap.org>
>> Subject: Re: [Talk-us-massachusetts] Adding McKinstry Brook
>> Message-ID: <340dba2b-1e06-089b-28a8-c709a30b4f42 at cooperjr.name>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>>
>> On 12/21/2020 12:41 PM, Greg Troxel wrote:
>> > If you are comfortable munging python code and dealing with shapefiles,
>> > you can probably get to the point of using these sources.  Probably JOSM
>> > can read shapefiles, in which case you could do this without coding.  If
>> > you aren't using JOSM and you want to do this sort of editing, I suggest
>> > learning it.
>> Hmm; while software engineering is my day job I've somehow managed to
>> not pick up Python yet. I guess I was hoping that there was some easy
>> way to import more MassGIS layers into the iD editor or into OSM
>> directly. Having the L3 Parcel data and the 2019 Orthos right there in
>> iD is pretty nice and easy. I was hoping somebody had just already
>> developed a way to just copy a stream that's in MassGIS data over into
>> OSM. If there's nothing already built, while it sounds like a fun
>> project I'm unlikely to be able to dedicate the time to do it myself.
>>
>> > If you just want to add one stream that you are cross-checking with
>> > imagery and personal knoweldge, I'd say go for it and don't worry too
>> > much.
>> Yeah, that's basically all I'm doing. I mean I know many of the road
>> crossings for this stream, but it's not like I've walked along the
>> entire length of the stream or anything like that. I guess I am just
>> worrying too much.
>>
>> > If you start to think about "import all the streams in MA", that's an
>> > import, needs plan/discussion/approval and it's at least 10x harder than
>> > you think.
>> Oh no, you're thinking much more ambitious here than I am. :)
>>
>> > Hope this helps and feel free to ask me more questions.
>> Yes, thank you, this was helpful.
>>
>> On 12/21/2020 12:58 PM, Greg Troxel wrote:
>> > I downloaded the hydro25k layer and looked at it in QGIS.  It indeed
>> > looks useful.  If you want to send me a private mail with a geo link to
>> > where you are I can see about pulling that one stream out of it into osm
>> > format for you, if that seems daunting to you (quite understandable).
>> Are you looking for a link other than the changeset I initially made?
>> Sorry, I'm not sure what other "geo link" to send.
>> https://www.openstreetmap.org/changeset/96205699
>>
>> > But see this and maybe you can do it yourself:
>> >
>> >
>> https://wiki.openstreetmap.org/wiki/Software_comparison/Import_a_shapefile
>> I'll maybe dig into this when I have more time.
>>
>> Thanks!
>> --
>> Peter C.
>>
>>
>>
>> ------------------------------
>>
>> Message: 5
>> Date: Mon, 21 Dec 2020 13:31:40 -0500
>> From: "Wayne Emerson, Jr." <ibemerson at verizon.net>
>> To: talk-us-massachusetts at openstreetmap.org
>> Subject: Re: [Talk-us-massachusetts] Adding McKinstry Brook
>> Message-ID: <c6183f1e-fc9e-2cb2-a370-d572e21067b8 at verizon.net>
>> Content-Type: text/plain; charset="utf-8"; Format="flowed"
>>
>> The hydro25karc file is my favorite layer for rivers because it has a
>> name field. The main problem with it however is that the lines seem to
>> be drawn, (in a recent area I checked), north to south rather than in
>> the direction of actual flow. So it was a lot of extra work to check the
>> topo map to find the proper flow direction.
>>
>> -Wayne
>>
>> On 12/21/2020 12:58 PM, Greg Troxel wrote:
>> > I downloaded the hydro25k layer and looked at it in QGIS.  It indeed
>> > looks useful.  If you want to send me a private mail with a geo link to
>> > where you are I can see about pulling that one stream out of it into osm
>> > format for you, if that seems daunting to you (quite understandable).
>> >
>> > But see this and maybe you can do it yourself:
>> >
>> >
>> https://wiki.openstreetmap.org/wiki/Software_comparison/Import_a_shapefile
>> >
>> > _______________________________________________
>> > Talk-us-massachusetts mailing list
>> > Talk-us-massachusetts at openstreetmap.org
>> > https://lists.openstreetmap.org/listinfo/talk-us-massachusetts
>>
>>
>>
>>
>> --
>> This email has been checked for viruses by Avast antivirus software.
>> https://www.avast.com/antivirus
>> -------------- next part --------------
>> An HTML attachment was scrubbed...
>> URL: <
>> http://lists.openstreetmap.org/pipermail/talk-us-massachusetts/attachments/20201221/8e79b467/attachment.htm
>> >
>>
>> ------------------------------
>>
>> Subject: Digest Footer
>>
>> _______________________________________________
>> Talk-us-massachusetts mailing list
>> Talk-us-massachusetts at openstreetmap.org
>> https://lists.openstreetmap.org/listinfo/talk-us-massachusetts
>>
>>
>> ------------------------------
>>
>> End of Talk-us-massachusetts Digest, Vol 49, Issue 6
>> ****************************************************
>>
>
>
> --
> Yury Yatsynovich
> _______________________________________________
> Talk-us-massachusetts mailing list
> Talk-us-massachusetts at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-us-massachusetts
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk-us-massachusetts/attachments/20201221/5feb2732/attachment-0001.htm>

More information about the Talk-us-massachusetts mailing list