Blog

  • Early Run

    Early Run

    Typically in the summer, I like to try to get to bed by 10:00pm and get up between 5:00am and 5:30am. Up until this week, though, I’ve been in a rut where I’ve been staying up until 11 or so, and not getting moving until close to 6:30. My morning routine (breakfast, coffee, pool chores, etc) usually takes me around an hour, and as a result, on mornings that I run, I haven’t been getting out of the house until close to 8:00. By then, the sun is usually out, and the summer heat is on the rise. Things have gone better so far this week, though. I’m getting tired of roasting in the sun during my runs, and with an expected high of 98° today, I was highly motivated to get out early for my run. I got moving around 5:15, and managed to hit the pavement at 6:45, which is the earliest I’ve run all summer. What a difference an hour and 15 minutes makes — in spite of the omnipresent humidity, the temperature was a reasonable 74°F, and it was much shadier and less oppressive due to the lower sun angle. I ran my usual 7 mile fall-winter-spring weekday morning route, and it actually was almost sort of pleasant. Now that I’ve experienced it, maybe I can continue to motivate myself to run early for the rest of the summer.

    I am still dealing with stiffness issues with my right calf. Last week, I bought myself a percussion massage gun. It seems to work nicely, but initially, I overdid things, and aggravated the calf even more. It seemed to respond well to the heating pad, so I’ve been using that a bit lately, typically right before bed. I’ve also taken to wearing compression socks for a few hours after running, and I still use the foam roller prior to running. I suspect that the massage gun may fit in best as a post-run recovery aid, so I will see how things go. I’m also hoping that it will help with the occasional hip flexor/piriformis issues that I get on the left side.

  • Gracefully Jamberry

    Gracefully Jamberry

    • Beans: Jamberry (blend)
      • Roaster: Gracefully Coffee Roasters (Baltimore, MD)
      • Origins: Colombia, Guatemala, Ethiopia, Costa Rica
      • Roast level: Light to Medium
      • Roast date: 7/10/2025
      • Purchase date: 7/22/2025 from Gracefully curbside café
        Freeze date: n/a; Thaw date: n/a
        First cup: 7/22/2025; Last pour-over cup: 8/3/2025
      • Process: Natural process
      • Tasting notes: Mixed berry jam, honeyed apricot and chocolate covered almonds
    • Switch with Ode grinder (1 cup):
      • 20g coffee / 300g water (1:15)
      • Ode: 3+2 to 4
      • Water at 100°C
      • Single Cup V60 Pourover with 50g bloom and 60g pulses – Finishes around 02:45
    • AeroPress with Prismo and JX grinder:
      • 17-ish grams coffee / 250-ish grams water (1:14 to 1:15)
      • JX: 16
      • Boiling water
      • Metal + single paper filter
      • Pour enough to wet beans; agitate; bloom until 0:45; pour to 0.25″ or so of top of cylinder; stir back and forth 7-8x; steep until 2:45 to 3:00; repeat stir; press slowly

    I was in the mood for a fruit-forward coffee, and this definitely lives up to that billing. It’s the first full bag I’ve opened since I bought the Hario Switch, and as such, has served as something of a “guinea pig” as I test out a few different brewing methods.

    • For cup #1, I kept the drain closed for the bloom phase, and open for the pour-over phase. This was a good cup with a nice mouthfeel — probably my favorite of the first 3, actually.
    • For cup #2, I kept the drain closed for the bloom and for the initial top-up to 120g, then opened it for the rest of the pour. I wasn’t crazy about how the bed ended up — there was a thicker ridge of grounds left at the high water mark, which the ending swirl didn’t take care of. Maybe I should swirl it right before I open the drain. Whatever the case, the cup tasted fairly similar to cup #1, so there’s probably not much point in brewing it this way going forward.
    • For cup #3, I tried a full-immersion brew. After the bloom, I kept the drain closed and poured all the way to 300g without stopping. Then, I swirled, steeped until 02:30, and opened the drain. It took around 30 seconds to drain down, finishing at 03:00. The cup was fine, but tasted a little bit over-extracted. I would probably want to use a coarser grind if I was going to brew it like this regularly. My real goal here was to see how it tasted, and to see if the size 3 Switch could accommodate a full 300g immersion brew. The answer is yes, with plenty of room to spare.

    Based on these results, I’ll probably end up using method #1 for subsequent cups. I likely will also try brewing a cup or two in the regular V60, to see how it compares to the Switch cups.

    7/27: This afternoon, grind setting 3 with method #1 produced a better cup than the coarser settings I had been using initially. There was more of a roasty flavor to balance out the fruity acidity. The fruit flavors came through a little more prominently as the cup started to cool. The draw-down took a few seconds longer, as well.

    7/31: Tried standard size 2 V60 this afternoon with grind setting 3. Draw-down finished around 02:40. The cup was very under-extracted. The immersion-style bloom phase I’ve been doing with the Switch definitely makes a difference. Based on everything I’ve tried to date, it seems like the grind coarseness needs to vary directly with the immersion time (e.g. no immersion == finer grind, longer immersion == coarser grind). Not really a huge revelation there.

    8/2: Grind 3+2, 23g coffee, 300g water (1:13) — Another accidental brew this morning. I forgot to close the switch drain during the bloom, so instead, I closed it for the rest of the pour. Rather than pouring all at once, I used my usual pulse technique, finishing the pour at 02:10. Lastly, instead of steeping it afterwards (per cup #3 notes above), I swirled and immediately opened the drain after pouring all the water. I definitely wasn’t fully awake this morning, but the cup turned out pretty good. It did not seem over-extracted like cup #3. It was very strong — I had intended to use more water for a ratio closer to 1:15, but forgot (the beans are almost gone, which often means brewing a couple of larger cups to avoid ending up with leftovers). I may brew the final cup the same way, maybe with 10-20 more grams of water.

    AeroPress notes (8/4): I brought enough beans to the office to make 2 cups. The first was on Wednesday 7/30, and the second likely will be Wednesday 8/6. Nowadays, I mostly use the AeroPress when I’m away from home, either at the office or traveling. As I typically lack access to a scale and (sometimes) a kettle, I eyeball the variables I can’t control precisely, like bean/water ratio, water temperature, etc. In spite of that, I’ve found that the AeroPress produces good cups fairly consistently with a wide variety of beans. I’ve been using essentially the same brew method for over a year now (shown above), and should probably create a page for it at this point. The funny thing is, after all of the tinkering around I did with the AP over the first year or so that I owned it, the technique I use now is very similar to that shown in the “how to use” instructions on the AeroPress web site. The biggest differences are (1) Prismo cap to stop initial drip-thru; (2) 45-second bloom for light to medium roasted beans; (3) longer steep time; and (4) second stir immediately before pressing.

  • Quick notes

    Quick notes

    We have two nice-for-July days this week (yesterday and today), and I’m trying to make the most of them before the heat returns for the end of the week. Yesterday, we got out on the water for a brief paddle from Solley Cove Park to Tanyard Cove and back. That has been a popular destination for me this year, as I work to get proficient on the stand-up paddleboard. I had to “MacGyver” the paddle a bit, as the cheap metal ferrule that connects the halves together broke as I was taking the paddle apart to put it in the car. As with everything else these days, you get what you pay for, and I guess I can’t expect a top-quality paddle in a starter SUP kit. To get us out on the water, I used a clip from a swimming pool brush, but it is not a perfect fit, as the ferrule is smaller than the hole in the paddle shaft. I wrapped a rubber band around the shaft to keep it from sliding back and forth, and it worked fine, but it looks like my first off-season upgrade is going to be a better-quality paddle. I’ll have to keep an eye out and see if REI has any end-of-season closeout discounts on SUP paddles, as they seem to run more expensive than kayak paddles. I’m also going to see if I can find a replacement ferrule to repair my existing paddle.

    Today, I rode my mountain bike to the office for the first time since probably late spring. As I wrote the other day, I don’t ride off-road much in the summer, because it’s usually either too hot, too humid, or too wet. Even when conditions are ideal, there’s a ton of poison ivy and other overgrowth along the trails this time of year. Today was great — the trails had a lot of muddy spots, but were mostly good. I spent more time on the bike than off. Time will tell if I end up with any spots of poison ivy. The only negative is that my seat post dropper cable seems to be stuck or seized up. I don’t use the dropper much, so it’s not going to keep me from riding the bike, but I guess I am going to need to take it in to the shop at some point.

    I have been pretty good with swimming regularly this summer. Swimming and road biking are the two outdoor activities that I tolerate the best, and look forward to doing the most, during the hottest months of the summer. Very recently (within the past week or so) I’ve started doing the breast stroke portion of my swimming workouts without a tether. I’ve found that it takes me about 20 strokes to cover a length of the pool, so I can complete a 60-stroke set with only two turn-arounds. Next, I may see how it works out with backstroke. If it’s practical, I think a really good way to divide up the workout would be: start out untethered and swim 60 breast, 60 back, 60 breast, 60 back, 60 breast, and 60 back. Then, put the tether on and swim 60 front crawl, 60 butterfly, 60 crawl, 60 butterfly, 60 crawl, and 60 butterfly.

  • Brain Dump

    Brain Dump

    Just a bunch of random musings for today.

    • Today was the first run I’ve taken in a long time where I had to stop over a mile short of my intended distance. I totally pooped out just shy of mile 6. I can’t blame the weather, as we are finally getting a brief reprieve from the relentless humidity of the past several weeks. It was still muggy, but the dew point was below 70, and for the first time in ages, my shirt wasn’t completely soaked when I got home. The culprit may have been the 3 vials of blood I had drawn for lab work earlier in the morning. I didn’t think that would be enough to cause issues, but perhaps I was wrong. I guess I should schedule my blood work appointments for days when I am not planning to run. Live and learn.
    • I’ve been battling mild pain on the outer edge of my right heel for most of the summer. It is not enough to keep me from running, but I am noticing that it starts to get worse toward the end of long runs as I get tired. I am also noticing occasional stiffness in my right calf, and I’m not sure if that’s a cause or an effect. I noted almost identical issues in summer 2023, and a similar issue on the left side in late 2023/early 2024. I hypothesized that the summer issue might be swimming related, and it’s plausible, if for no other reason than it started to crop up at around the same time I started swimming almost every day. That said, it’s hard to believe that swimming could be at fault for calf/heel issues. It probably has more to do with swimming working muscles that I don’t use at other times of the year, and imbalances manifesting as muscle/fascia tissue tightness somewhere in my leg that is telegraphing to the heel. I’m trying to work on it by doing toe-squat stretches, foam rolling, and heel walking, all of which help to a degree, but the problem is still there.
    • I made cold brew coffee in the French press this week with some Lidl store-brand pre-ground dark roast coffee, and it was a messy undertaking. The coffee is ground a little too fine for the French press, and quickly plugged up the plunger. I gave it a stir, but then a ton of sludge got past the plunger and into the brew. I filtered it out by pouring it through a funnel lined with a paper V60 filter, which took forever. It turned out OK, but if I’m going to use pre-ground coffee, I think I’m going to need to use something other than the French press to make the cold brew.
    • I have really missed mountain biking this summer. Whenever I want to go, it always seems to be either too hot/humid or too wet. Wednesday is looking like it might work out, and it’s my usual day to go to work, so I’m going to cross my fingers and hope I can finally get out on the trail again. Same deal with paddling — I haven’t been out since Delaware in late June. Hoping to do something about that tomorrow morning.

  • Hario Switch

    Hario Switch

    I bought myself a Hario Switch this week. The Switch is essentially a V60 dripper with a rubber base and a lever-operated stopper. This provides more control over how long the water stays in the cone, so it can be used to make immersion-style brews as well as standard pour-overs (and combinations of the two methods). I like to brew a wide variety of different coffees, and while most of them work really well with the standard V60, with some of them, I struggle to get consistent cups. Most of the time, the issue is with weak/under-extracted brews, more often than not when I brew a single cup at a time. My hope is that the Switch will allow these coffees to steep a little longer, so getting even extraction is less dependent on timing and pouring technique. Or something like that. The Switch I bought has a glass cone, and is a size 3, which is the largest available. An article I read somewhere online recommended going with the size 3, because it can hold more water should I ever decide to try a full-volume immersion brew. I don’t have a standard size 3 V60, either, so the switch also gives me an option for brewing larger pour-over batches (e.g. for guests).

    I used the switch for the first time today, with the coffee I had on hand (Zeke’s Beans of Summer). I ground 19.5g of beans at Ode setting 3+2, and brewed them with 300g water (1:15.4). To start, with the Switch’s drain closed, I poured 50g bloom water, agitated, and steeped until 0:45. Then, I opened the drain and followed my standard single-cup V60 technique the rest of the way. So, the bloom phase was the only variation from my usual way of doing things. This had more of an effect than I had expected: the finished cup had a more robust mouthfeel, and seemed a little “better” overall, than the other recent V60 cups I’ve brewed with these beans. Perhaps the “immersion bloom” is helping to wet the beans more evenly and leading to more consistent extraction. It will be interesting to see how subsequent cups turn out.

    7/18: This afternoon’s cup was the third that I’ve brewed like this, and I’d put it up against anything I’ve brewed in the past 2 years. The only thing I’m doing differently is blooming with the Switch drain closed, and that seems to have made a huge difference. I’m starting to think that I may be onto something here.

    7/23: When appropriate, I’ll post further Switch brewing notes with my entries for specific coffees. I’m thinking I’ll brew most of my switch cups using either the above technique (immersion bloom followed by standard pour-over) or by doing a full-immersion brew with the drain closed, which I have yet to try. The interesting thing about the latter is that it will let me steep the coffee for any length of time, just like a French press or AeroPress.

  • Weekend Report

    Weekend Report

    We have had a stretch of very typical July weather this past week. It’s been hot, but temperatures have maxed out in the low 90s. There have been storms most days. And, of course, the one great constant: it’s been humid, especially this weekend. It may sound like I’m complaining, but I’ll take this weather over the alternative: a scorching heat wave with temperatures pushing 100 and no rain. In July, where the weather is concerned, you always take the lesser of the evils. If we survive this, how far behind can cool, crisp autumn days be?

    I often get lazy and lethargic in the summer heat, so I was proud of myself for keeping up with my routine this weekend. I ran 10K on Saturday and biked 25 miles today (Sunday). The run was longer than I had planned, and the bike ride was shorter. For the run, I figured I’d go about 4 miles and then finish up with some deep-water running in the pool, but I paced myself pretty well and managed to finish 6.5 miles on land. I stuck to a route that had a lot of shade, and also benefited from some low clouds for the first half of the run. Today, I had planned a 30+ mile ride, but just wasn’t feeling it. In the heat, I usually tolerate biking a little bit better than running, because biking generates a 10-15mph cooling breeze. This morning, though, it was so humid that the air movement wasn’t cooling effectively, and 45 minutes in, my shirt was completely soaked with sweat. I felt fine otherwise, but figured that lacking a source of electrolyte replenishment, it would be best to cut the ride short. Come September and October, there will be plenty of pleasant mornings for 30-40 mile rides, so there’s no sense in overdoing things.

  • Zeke’s Tell Tale Decaf

    Zeke’s Tell Tale Decaf

    • Beans: Tell Tale Decaf (blend)
      • Roaster: Zeke’s Coffee (Baltimore, MD)
      • Origin: “Smoky Italian roast and lightly roasted Central American”
      • Roast level: Medium/Dark (6/8)
      • Roast date: unknown (batch #25000567)
      • Purchase date: 6/15/2025 from Zeke’s at Baltimore Farmer’s Market
        Freeze date: 6/20/2025; Thaw date: 7/10/2025
        First cup: 6/17/2025 or 6/18/25; Last cup: TBD
      • Process: Water processed decaf
      • Tasting notes: none noted on bag
    • V60 with Ode grinder (2 cups):
      • 40g coffee / 600g water (1:15)
      • Ode: 4
      • Water at 90°C
      • Size 2 V60 cone
      • Pour 80g to bloom and agitate; at 0:45, pour to 300g; wait for some draw-down (try to keep cone mostly full but not overflowing); pour to 450g; draw down a little more; pour to 600g; swirl — finishes 03:20-03:30
    • V60 with Ode grinder (1 cup):
      • 20g coffee / 300g water (1:15)
      • Ode: 4
      • Water at 90°C
      • Size 1 V60 cone
      • Single Cup V60 Pourover with 50g bloom and 60g pulses – Finishes around 03:00

    I had brewed 2 or 3 cups of this before freezing it last month, but didn’t get around to typing up any notes until now. I believe that the local grocery store carries this blend, but we bought this bag directly from the roaster at the Baltimore Farmer’s Market. It’s the first decaf from Zeke’s that I’ve tried. I like this a lot — it is very roasty and well-balanced, with strong hints of chocolate. I will add notes for brewing a single cup once I’ve done it again.

    7/15: Added notes for brewing a single cup. The beans draw down more slowly, and leave more fines in the grinder, than most of the other Zeke’s beans that I’ve brewed.

  • Amity Brazil Daterra

    Amity Brazil Daterra

    • Beans: Brazil — Daterra Sweet Yellow (8oz)
      • Roaster: Amity Coffee Roasters (Greenwood, DE)
      • Origin: Brazil (Campinas)
      • Roast level: Medium
      • Roast date: 6/24/2025
      • Purchase date: 6/29/2025 at T. S. Smith Orchard Point Market in Bridgeville, DE
        First cup: 7/7/2025; Last cup: 7/12/2025
      • Process: wet
      • Tasting notes: Chocolaty/Nutty
    • V60 with Ode grinder:
      • 20g coffee / 300g water (1:15)
      • Ode: 4
      • Water at 99°C
      • Recipe: Single Cup V60 Pourover with size 1 cone, 50g bloom water and 60g pulses – finishes around 02:40

    This is the third bag I’ve had from Amity, all of them single-origin beans, and all of them purchased at T. S. Smith while en route either to or from Bethany. The bags here always seem to be fresh, I guess partially because the roaster is only 4 miles away. One of these years, I should make the slight detour to Greenwood to stop there, as I suspect they’ll have a wider selection of beans.

    My first and second cups (1:15 at grind 4 and 99°C water) were nice and smooth, and I agree with the stated tasting notes. Unless something convinces me otherwise, I’ll just keep brewing them like this.

    7/9: Had my first bad cup this morning- guessing poor technique was the culprit, as I poured a little on the fast side and the draw-down finished faster than usual. The cup was weak and under-extracted. Next time, I am going to try 50g pulses to try to get a longer draw-down time. I have a feeling that if I can keep water in the cone until 03:00 or so, I should get better extraction.

    7/10: 50g pulses did stretch things out a bit, but didn’t improve things much, nor did a finer grind (setting 3). I noticed a lot more grounds than usual stuck in the grinder chute after the last couple of cups, so before I brewed this afternoon’s cup, I brushed the chute out as best I could. Then, I went back to how I initially brewed it, except I nudged the grind one click finer to 3+2. The resulting cup was better than yesterdays’, but still didn’t seem quite as good as my first two.

    7/12: I brewed two larger cups to finish the bag up (350g water at 1:15) and I used grind setting 3+2 with the size 2 V60. As I’ve very frequently noted, the draw-down was slower than with the smaller cone, finishing at 02:55-03:00, and it seemed like the cups were a little better extracted. I still feel like they could have been better, though — if I buy these beans again at some point, it may make sense to try immersion instead of pour-over.

  • Run Report

    Run Report

    Super, crazy high humidity for my run this morning. When I left the house at 7:30, it was 77°F with a dewpoint of 75°. It gets plenty humid around here in the summertime, but that dewpoint is about as high as it ever gets this far inland. 75-plus dewpoints are much more common on the coast. Having run 11 miles Saturday and biked 35 miles Sunday, I was just looking to take a nice, short, easy recovery type of run. I ended up going 5.5 miles at around 12:15/mile, which is shorter and slower than I’ve run at any time in recent memory. My strategy for running in the heat/humidity is continually evolving, but in general, it involves:

    • Aggressively seeking shade along my route (although with a 75° dewpoint, even heavy shade doesn’t provide much relief).
    • Taking it easy. Any time I start to feel like I’m pressing, I dial it back a notch, always trying to maintain that magical 180-steps-per-minute cadence. The result is often a super-slow pace (like today’s), but less of a tendency to overheat and “bonk out”.
    • Refilling my water bottle along the way. My usual weekday route has a filling station at about the halfway point, which I didn’t start taking advantage of until this year. Last year, I bought a 1.5L hydration pack, but I haven’t used it yet this year, as it’s generally easier to carry my 16oz soft water bottle and refill it along the way. 1.5L is a lot of water to carry on my back, and in high humidity, I really sweat a lot more when wearing the pack. I think it’ll be more useful during long, unsupported runs in cooler weather.
    • During the second half of the run, pouring water over my head/face instead of drinking it. At that point, even if I’m thirsty/dehydrated, drinking isn’t going to help me finish the run. However, if it’s really hot/humid, often my face will start feeling hot, which is an early sign that I’m starting to overheat. In past years, I’ve cut many runs short for that reason. Pouring cool water over my face cools me down almost instantly, and gives me a second wind. A little bit goes a long way, too. Then, when I get home, I load up on fluids and electrolytes (my latest kick is drinking diluted pickle juice).

    My running wardrobe has improved as well. I’ve been using compression shorts for a few years now, and they prevent heat rash in the thigh/groin area that has plagued me in the past. I also swear by my SweatHawg double-thickness headbands, which keep perspiration from dripping into my eyes and burning. This year, I invested in a couple of snug-fitting, sweat-wicking running shirts, and I like them much better than the larger athletic t-shirts I used to run in.

    Today’s run went remarkably well, given the weather conditions. I ran my entire planned distance without “hitting the wall”, and finished strong. Can’t ask for much more than that.

  • JV6581 LINTH

    JV6581 LINTH

    PROGRAM = datasheet95, VERSION = 8.12.5.20
    Starting Datasheet Retrieval...
    1    National Geodetic Survey, Retrieval Date = JULY  4, 2025 23:12:02 EDT
     JV6581 ***********************************************************************
     JV6581  DESIGNATION -  LINTH
     JV6581  PID         -  JV6581
     JV6581  STATE/COUNTY-  MD/ANNE ARUNDEL
     JV6581  COUNTRY     -  US
     JV6581  USGS QUAD   -  RELAY (2016)
     JV6581
     JV6581                         *CURRENT SURVEY CONTROL
     JV6581  ______________________________________________________________________
     JV6581* NAD 83(1991) POSITION- 39 12 20.28673(N) 076 38 29.25865(W)   NO CHECK
     JV6581* NAVD 88 ORTHO HEIGHT -    54.68  (meters)      179.4   (feet) RESET
     JV6581  ______________________________________________________________________
     JV6581  GEOID HEIGHT    -        -32.750 (meters)                     GEOID18
     JV6581  LAPLACE CORR    -         -5.39  (seconds)                    DEFLEC18
     JV6581  HORZ ORDER      -  THIRD
     JV6581  VERT ORDER      -  THIRD
     JV6581
     JV6581.The horizontal coordinates were established by classical geodetic methods
     JV6581.and adjusted by the National Geodetic Survey in January 1992.
     JV6581
     JV6581.No horizontal observational check was made to the station.
     JV6581
     JV6581.The orthometric height was computed from unverified reset data.
     JV6581
     JV6581.No vertical observational check was made to the station.
     JV6581
     JV6581.Significant digits in the geoid height do not necessarily reflect accuracy.
     JV6581.GEOID18 height accuracy estimate available here.
     JV6581
     JV6581.Click photographs - Photos may exist for this station.
     JV6581
     JV6581.The Laplace correction was computed from DEFLEC18 derived deflections.
     JV6581
     JV6581. The following values were computed from the NAD 83(1991) position.
     JV6581
     JV6581;                    North         East     Units Scale Factor Converg.
     JV6581;SPC MD       -   170,895.162   430,967.744   MT  0.99996638   +0 13 30.1
     JV6581;SPC MD       -   560,678.54  1,413,933.34   sFT  0.99996638   +0 13 30.1
     JV6581;UTM  18      - 4,340,880.031   358,271.437   MT  0.99984733   -1 02 15.9
     JV6581
     JV6581!             -  Elev Factor  x  Scale Factor =   Combined Factor
     JV6581!SPC MD       -   0.99999656  x   0.99996638  =   0.99996294
     JV6581!UTM  18      -   0.99999656  x   0.99984733  =   0.99984389
     JV6581
     JV6581_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ5827140880(NAD 83)
     JV6581
     JV6581                          SUPERSEDED SURVEY CONTROL
     JV6581
     JV6581  NAD 83(1986)-  39 12 20.28357(N)    076 38 29.26809(W) AD(       ) 3
     JV6581  NGVD 29 (11/18/05)   54.92   (m)          180.2    (f) RESET       3  
     JV6581  NGVD 29              54.92   (m)          180.2    (f) LEVELING    3  
     JV6581
     JV6581.Superseded values are not recommended for survey control.
     JV6581
     JV6581.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
     JV6581.See file dsdata.pdf to determine how the superseded data were derived.
     JV6581
     JV6581_MARKER: DD = SURVEY DISK
     JV6581_SETTING: 38 = SET IN THE ABUTMENT OR PIER OF A LARGE BRIDGE
     JV6581_SP_SET: SIDEWALK ON BRIDGE ABUTMENT
     JV6581_STAMPING: LINTH 1988
     JV6581_MARK LOGO: MDSHA
     JV6581_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
     JV6581_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
     JV6581+SATELLITE: SATELLITE OBSERVATIONS - October 05, 2022
     JV6581
     JV6581  HISTORY     - Date     Condition        Report By
     JV6581  HISTORY     - 1988     MONUMENTED       MDSHA
     JV6581  HISTORY     - 20020217 GOOD             USPSQD
     JV6581  HISTORY     - 20221005 GOOD             WTBALL
     JV6581
     JV6581                          STATION DESCRIPTION
     JV6581
     JV6581'DESCRIBED BY MARYLAND DOT HIGHWAY ADMINISTRATION 1988
     JV6581'THE STATION IS LOCATED ABOUT 9.8 KM (6.10 MI) SOUTH OF THE APPROXIMATE
     JV6581'CENTER OF BALTIMORE, 1.5 KM (0.95 MI) EAST OF LINTHICUM AND IN THE
     JV6581'SOUTH END OF THE EAST SIDEWALK FOR THE OVERPASS BRIDGE WHERE STATE
     JV6581'HIGHWAY 648 CROSSES INTERSTATE HIGHWAY 695.  OWNERSHIP--ROAD
     JV6581'RIGHT-OF-WAY.
     JV6581'NO TO REACH IS NECESSARY.
     JV6581'THE DISK PROJECTS ABOUT 0.3 M (1.0 FT) ABOVE THE BRIDGE DECK.  IT IS
     JV6581'0.8 M (2.6 FT) SOUTH OF THE MOST SOUTHERLY EXPANSION JOINT ON THE
     JV6581'BRIDGE, 5.0 M (16.4 FT) EAST OF THE CENTER OF THE NORTH BOUND LANE OF
     JV6581'STATE HIGHWAY 648, 9.4 M (30.8 FT) NORTH OF THE SOUTH END OF THE EAST
     JV6581'PARAPET WALL AND 18.8 M (61.7 FT) NORTH FROM THE CENTER OF LARGE DROP
     JV6581'INLET.
     JV6581
     JV6581                          STATION RECOVERY (2002)
     JV6581
     JV6581'RECOVERY NOTE BY US POWER SQUADRON 2002 (CRA)
     JV6581'RECOVERED IN GOOD CONDITION.
     JV6581
     JV6581                          STATION RECOVERY (2022)
     JV6581
     JV6581'RECOVERY NOTE BY THE WILSON T BALLARD COMPANY 2022 (NAW)
     JV6581'RECOVERED IN GOOD CONDITION.

    Log: Recovered in good condition on Sunday 7/25/2025 at 2:26pm EDT. In spite of the sidewalks, this area is not very walkable, but it’s still possible to reach the mark relatively safely. The GPS coordinates seemed pretty close, and the MDOT locating instructions are still accurate. The disc is flush with the sidewalk and easy to spot. This is the first benchmark disc that I’ve logged since the geocaching.com benchmarking sunset (I have logged a few spires and domes in the meantime). Benchmarking has always been sort of a side game to geocaching for me, but I still find it more interesting than, say, waymarking or Munzee. Maybe I missed my calling to be a surveyor?

    There is another nearby mark, JV6578, that I would like to look for during the non-growing season. I walked by it today, but the grass was a little high (and the sun a little too hot) for me to want to go wandering into the field where it is located.