Results tagged ‘ BASEBALL FIELD ’
Below are a few general tips and considerations that can be used as a template or checklist when planning and or building a baseball field. First and foremost.
- Hire your sports turfmanager, or field consultant.
- Develop maintenance budget and begin to order equipment. A reputable field contractor can install a professional level field in 45 days so it’s important to be ready to take care of it when they lay down the grass.
- Secure the services of a qualified surveyor and field contractor and or field project director. Making small mistakes during the planning period could result in costly maintenance problems down the road.
- If you’re sodding the field, locate the grass source and determine the type you need based on your area. It’s important to do this early in the process so you can have the turf tested and growing properly before it is harvested.
- Determine elevation and grade lines to confirm existing grades and how they will change to allow your field to drain properly.
- Have a soil analysis completed to find out what type of soils you are dealing with. You will want to send the soil sample to a certified testing service that understands the difference between testing soils for roads, builds and sports fields. They are very different tests. They will test for particle size, percolation, soluble salts and PH. etc…
- Roto-till hard pan and subsurface soil if your site proves to be an impermeable surface.
- Determine irrigation system mainlines and outlets.
- Excavate and pour concrete footings for light towers, dugouts, stands and locker room.
- Determine the drain tile system, drain outlets, sewer system.
- Now is the time to install electric lines, cables, outlets to light towers, dugouts and stands
- Lay out stabilized areas; haul in aggregate for warning tracks, paths to home plate in front of dugouts, coach’s box, on deck, and fungo circles.
- Replace or prepare native topsoil – from soil analysis formula, mix in soil structure amendments. This material can be stockpiled on site. Again if you are building a sand based field system you will remove all of the soil from the existing field and replace it with a pea gravel drainage system and sand based root zone for the growing medium.
- Sterilize native soil materials if possible. Taking care of the weeds in this material can save a lot of money trying to spray out weeds in the future.
- Roto-till the soil for uniform and thorough mixing. Rework the area to grade elevations with laser grader
- Recheck grade elevations with surveyor’s report.
- Roll the area to a firm soil.
- Now would be a good time to install the backstops, fences, scoreboard, flag pole, foul line marker.
- Build the install homeplate pin and the pitcher’s mound
- Spread a starter fertilizer before laying down your grass
- Finish grading with laser device.
- Remeasure diamond and recheck grade elevations carefully.
- Set the home plate, pitchers plate, base anchors.
- Mark all grass lines, circles, arcs and boxes with chalk or lime.
- Plant the area (seed, sprigs, or sod)
- Build your bullpens and install warning track
- Finish construction and installation of dugouts, light towers, stands, locker rooms, showers, toilets, storage space, concession stands, and parking lot
The success of your field will depend on three factors. How it was built, how much it will be used, and how it will be maintained. These 3 pieces are critical to define before you put a shovel in the ground!
Over the past couple days we have been overseeing the zoysia sod installation on one of the 4 fields in Panama for the upcoming baseball world cup. It’s exciting to witness the progress of these fields. Here at Omar Torrijos Stadium, Santiago they installed a new drainage system, irrigation a sandy loam soil over gravel . With the rain they receive in this country drainage is key. Next stop for sod. Aguadulce.
We are rolling along in Panama with ballpark improvements for the Baseball World Cup. Whenever we work in other countries there is always some sort of challenge which makes for some exciting ties leading up to the event.
Two of the 4 stadiums to be used are receiving totally new fields. Three of the stadiums are upgrading locker rooms, dugouts, fencing and scoreboards. All of the ballparks are receiving new lights to some degree. The 2011 Baseball World Cup is the first Major baseball event being played in the national stadium since the 2003 Pre Olympic qualifier for Athens.
The national stadium is receiving some new field upgrades as will the stadium in Chitre. Following this wonderful tournament the country’s MLB Winter league season will begin as provisional members. These ballpark upgrades will only bring more major baseball events to Panama as the sports continues to grow. The city, the culture and especially the people are truly remarkable. Plan now to come down for some great baseball in October.
Chad and I took a little time to taste the local coconut water. Outstanding!
Over 80% of the game of baseball is played on the infield, which is why the infield clay is one of the most important components of the field.
Recently, I have received a couple of emails asking the question, What is the infield clay really made of? In layman terms, it is composed of three materials. Sand, clay and silt. The tougher question is what are the percentages of the content of each material, and the particle size of the sand. The composition is the true science of the infield clay even though the daily maintenance performed on these fields at a higher level is sometimes considered more of an “art”. Most companies that provide ball diamond mix state they have a something like a 60%-70% sand ….20%to 30% clay and 10% to 20% silt. Most infield clays and baseline clays are about 5 inches deep. Bellow that there is a level of sand and pea gravel on the big league fields.
As a general rule of thumb this distribution makes sense, but the key factor is the sand particle size which comes in numerous variations from “gravel” to “very very fine”, Angular and round and so on. Separate tests are performed on the infield clay mixture to determine the sizes and distributions of materials as well as the percolation rates which give you an idea on how it may drain or dry out. Normally infield clays do not drain very well and are not really supposed to depending on the level of field you have. You can obtain pretty much any type of blend you want from numerous clay companies. The geographic location and your budget will drive your selection to the material you can obtain.
When I worked for the City of West Palm Beach managing the spring training facility for the Atlanta Braves and the Montreal Expos we used a higher sand base 75% sand 15% clay 10% silt with a medium course level sand that allowed the rain to pass through the infield clay a little easier. These days I use a more stable clay with a analysis of 40% clay 50% sand and 10-20 silt. This is a real heavy mix but can take a ton of abuse. Where you live and how much the field is used also drives the decision on the type of infield clay you may have.
Everyone that has been to a professional game notices the time the crew takes on dragging and watering the infield clay before the game. The key to a good infield and making it a great one is how you manage the moisture level in the clay. Kind of like the Goldilocks & the three bears nursery rhyme ” not to hot, not to cold, etc…your infield clay needs to hold the right amount of moisture to not be to soft, to dry, to hard or to moist. Companies now manufacture a material which is known in the industry as a soil conditioner. It is applied to the top of the infield to help control moisture. These materials are sometimes called, “Diamond Pro” , “Turface”, “Terra green” , “Pros Choice” etc…they are basically a calcined clay heated to a very high temperature and sized and colored to your liking.
Maintaining the infield’s moisture level requires consistent monitoring and maintenance. Coaches and players are continually giving you feedback on the condition of the infield helping you determine where you need to be with the moisture and maintenance methods used. Based on the weather, climate, time of year and even the team that is on the field, your maintenance of the clay could change a little on any given day. Its one of the most unknown interactions in professional sports. That’s why they sometimes call the groundskeeper the 10th man on the team!
One of the major parts of the field that requires a lot of TLC is the infield clay. Many people watch the dragging ritual before a game but probably do not realize that it’s the 4th or 5th time they have dragged the field that day using a variety of drags.. You have flex drags, rigid drags, coco mats, nail drags, float board drags, harrow drags, etc..
In addition to dragging the field before the games, groundskeepers at the pro level even drag the field during the games. There are several methods to dragging a baseball field and several factors you need to consider as to the type of drag(s) you may choose. Types of infield clay, the moisture level and your equipment will dictate the level of dragging and best type of drag you will need. Many sport complexes use the 3 wheel “sand pro” type units to pull a drag. They are fast and very agile. Some folks prefer a small smooth tired tractor to perform this function because it tends to leave less tire tracks and ruts. We even see fields being dragged by hand in some parks. Because that’s all they have to drag their field with…also many believe hand dragging puts the best finish on the infield.
The 4 ft x 6 ft flex mat is probably the most used in recreation level fields. If you need to perform a leveling task you should use a rigid drag. A rigid drag pulls more material in the screen and does not float with the contours like the flex drags. If you don’t have a rigid drag you can partially fold your flex drag which helps it to not float. The 3×3 rigid drags do a great job on the baselines as well as areas around the mound and plate by keeping them level. Sometimes for the infield, A heavier drag or one with a leveling bar on the front is needed when the clay particles do not break up easily. Another tool is the float board. These are sometimes handmade from wood or steel and are designed to level your infield.
- It’s not a race so take your time especially as your turn. Always keep the drag about a foot away from the grass and always pull the bases when you drag. Trying to dodge second base might be fun but you are changing the grade of the your field and causing lips when you hit the turf with the drag.
- If the drag doesn’t fit down the baseline?don?t pull it down the baseline! You need to rake these areas and use a smoothing board or purchase a drag that fits.
- Initially do a small circle pattern across the entire field then make a center line drag from end to end.
- Alternate patterns and dragging direction on a daily basis from Clockwise to counter clock wise.
- Select the finish drag that provides the smoothest surface.
- Coco mats are common for final dragging because they basically brush the clay and do not move material like the big drags.
- Some flex mats have a leveling bar on the front that helps to remove small bumps from the workouts.
- Before dragging make sure you have proper moisture and have used a ?nail type? drag to remove the deep ruts.
- Give the field a little water after the drag to stabilize the surface.
- At some of the allstar games you have seen designs in the clay areas. This material is calcined clay and is a lighter color than the rest of the infield. It may appear to be a ridge but it is a soil conditioner used regularly for infield maintenance.
- Monitor the moisture in the infield clay throughout the day. If its to dry add water but do so after you complete you’re dragging routine in the morning.
- After the games ask the players how it played and tweak your plan as necessary.
- Have fun!
Dragging the field is part of the art of infield maintenance so pay attention to te soil as you drag it to determine if you’re using the right drag.
What makes a baseball field so beautiful is in the eyes of the beholder but how it becomes that lush field of manicured grass is all about the sportsturf manager and his staff. (For those old-timers groundskeepers are now called sports turf managers.) Baseball fields haven’t changed drastically since the 1840s back when the sport was known as knickerbockers. The bases were measured at 90ft then and they remain that distance today. The mound however has changed quite a bit. In the last 20 years, field playing surfaces for all levels have improved tremendously, Standards have increased and the need for safety was stressed. even with all of the new fancy equipment and field protection materials there is still one part of the field that remains a true art. Managing the clays. The infield mound and homeplate. To hard or to soft. It’s all about moisture and how your field takes the water during certain times of the year. Mother nature has a calendar but she will sometimes tweak it a bit and throw everyone a curve like the Yankees practicing in a snow fall a couple of days ago. The turf managers in the north had a pretty rough winter and those fields are green and ready. I’ve blogged a bit about lot of How to grow your fields etc… but each spring seeing our fields go green after harsh winters is really amazing. The amount of hours and time spent on maintaining these fields is immense.
With the 2011 Baseball season officially underway we need to say thanks to our Spring training site ground crews for getting the guys ready for the season and the job our MLB and Minor League clubs are preparing to begin. Have a great season!
Technically, the term infield skin refers to segments of the baseball field that contain clay, specifically the areas around the bases and base paths. The keys to quality infield skin are good materials, proper moisture and consistent maintenance practices. With 70 percent of the game played on the infield, having a consistently firm, smooth playing surface is essential.
Infield mixes are made from various combination’s and percentages of sand, silt and clay. People consider the general standard for an OK infield to be 60 to 70 percent sand, 30 percent clay and 10 percent silt. Particle size also makes a big difference in these materials. Infields vary greatly by regional conditions, commercially available mixes and the preferences of the sports field manager and their facility and teams.
The weight of the infield mix is in the clay and the silt and that’s what retains the moisture. You may be in an area with a lot of rain, and if you don’t have much maintenance help for tarping you’ll want to have a bit sandier infield mix. If you have a heavily used field or one for university or professional play, you’ll probably want a more stable infield with a heavier mix containing more clay and silt to withstand the wear and tear of multiple events. For some infield mixes with lesser percentages of silt and clay, a conditioning amendment of calcined or vitrified clay is worked into the top 1 to 2 inches of the mix to help bind the clay and stabilize the infield.
When constructing a new field or rebuilding an existing one, the general depth of the infield material for the baselines is approximately 5 inches. The depth, the type of material used and the subbase components are subject to budgetary constraints. There are fields with the infield mix placed directly on the subbase soil, some on a sand layer over the subbase soil, some directly on a pea gravel layer and some on geo cloth covering any of these subbases.
Opinions differ on whether a geo cloth layer will be detrimental to drainage. While drainage within the infield mix will vary according to the percentages of clay and silt, it is generally slow, so many prefer the geo layer for other advantages. It can keep pea gravel from migrating up into the infield mix and bordering grassed areas. Geo cloth on the pea gravel does keep the infield mix from sifting into the gravel, reducing the need for continual addition of the mix during the first few years of construction and helping stabilize the surface more quickly.
To counteract slow drainage within the infield mix, many fields are constructed with a slope to help move the surface water off the clay and into the grass. A slope of about .5 percent, extending from the edge of the pitcher’s mound out past the 95 arc should provide sufficient water movement for most fields. Some skinned baseball infields and some softball fields are constructed with a greater percentage of slope.
It’s critical to achieve consistency of slope across the entire surface. Use laser-grading equipment and a skilled operator. Otherwise, once all the material is in place, run string lines from the infield grass to the outfield grass across the infield and work your way across the field with shovels and rakes. Keep moving the string lines every 1 to 2 feet, and check and recheck for accuracy as you move.
An in-ground irrigation system with a zone that only waters the infield clay is one way to deliver volumes of water quickly. When water patterns are diverted in windy conditions, hand-watering will be required to reach the places missed.
Quick-connect outlets behind the mound and behind home plate provide access to hook up a water hose. Some field managers place quick couplers at the infield corners behind first and third base in the grass. A 1-inch hose is preferred to deliver a larger volume of water faster. A retractable hose reel installed in the ground behind the mound makes pull out and rollback easier and eliminates hauling the hose out and back for each watering.
Select hoses and hand-nozzle sizes based on the number of fields you need to maintain and the size of your crew. Ideally, your nozzle selection should be able to apply enough water to reach the desired depth for the initial soaking and to lightly mist repeatedly to maintain the desired moisture level. Some infields drain so well that you can “puddle” the infield after a night game and it will be perfect for play by morning.
Top it off
Using the different calcined or vitrified clay amendments as the top surface coat can make it a little easier to manage the skin moisture levels and achieve consistency. You don’t want the players to pick up wet clay on their spikes or have the infield get too dry during the pregame workouts. With a topping of 1/8 to .25-inch, you can soak the infield as you would normally and have a good surface for workouts and sufficient moisture retention for the game. Consistency of depth is extremely important during the initial application of the top layer both for accuracy of the slope and footing for the players. Once in place, use a cocoa mat or the back of a fan rake so you’re just lightly smoothing the top surface and not moving piles of material.
An infield tarp is an important tool in moisture management. No one likes to use it, but covering the infield when you have rain issues can be the quickest and easiest way to preserve playability.
The worst thing you can do following a heavy rain on an uncovered field is to work the field too early. Let the sun do its work on the dry down before you get out there to squeegee, rake and dig. The dryer subsurface material will try to draw down the moisture from an undisturbed wet surface. If you must work existing or added material to dry down the surface, use a roller squeegee rather than a rake to spread the water so you’re not cutting into the wet material and disrupting that downward movement.
If you have depressions with standing water, fill them with calcined clay and let it soak up the moisture for 15 to 20 minutes. Then, spread out that moist material to dry further, or borrow a technique from ground crews in South America to remove excess water with no surface penetration. They use a supply of 12-by-24-inch foam-rubber sponges (old padding) and place one in an area of standing water, step down on it, allow it to absorb water to capacity, pick it up, wring it out and use it again.
Another technique to combat light rain or drizzle, and to use between innings when the dirt is starting to look shiny, is to apply a very thin layer of conditioner using a regular walk-behind or hand-held spreader set for the largest opening. You’ll get a more consistent layer than pouring conditioner from the bag or putting out piles to spread.
Working the dirt
The right equipment used properly is critical in maintaining the infield skin. You’ll want a series of different types of drag mats, rigid and flexible steel mats for breaking up dirt clods and leveling, and cocoa mats for finishing the surface. You’ll need both a fine nail and heavy nail drag for scarifying the surface and digging deeper to further loosen the mix and allow better moisture penetration. You’ll need rakes, brooms, edgers and rollers. The 1 or 2-ton roller will become your favorite tool.
The three-wheel field rakes produced by the major equipment suppliers do an excellent job, and they come with an assortment of attachments, as well as connection points for other implements. You also can use a small tractor, lawn mower, utility vehicle or golf cart to pull the drags.
Always pull the bases and insert the plugs so you can drag the entire infield. Pay close attention to the wear areas around and in front of the bases, such as where the first baseman plants his foot. Consider incorporating a heavier clay mix 10 feet out from first base and also at second and third base to make it easier to reduce divoting and keep indentations from forming. Follow different routes when driving equipment onto the field to reduce compaction issues. Transport the drags to the field and drop them at different spots each day. When working the field, keep attachments, drags and screens 6 inches away from the grass at both edges of the base path to avoid lip build up. Use a variety of dragging techniques, continually altering your patterns and incorporating circular spirals and figure eights. Go slow, especially in the turns, to avoid slinging materials.
To avoid creating lips when hand-raking, always rake up and down the base path, not across it. Work the grass edges with a fan rake or stiff-bristled broom after every practice, workout and game. If you don’t have the staff for that, use the water hose to blast the infield mix from the grass edges at least once a week.
You’ll want to edge the infield grass periodically, cutting away turf to remove any lip buildup, then backfill with new infield mix, tamp down firmly and test the edge. There should be no transition between the grass and the clay. If you can feel even the slightest difference with your foot, the ball can feel it when it hits, and that’s what causes a bad hop.
This article was published in sports field management magazine
Although its winter, Baseball season is closer than we think and now is the time to plan for the new ball yard! People have been sending me
some baseball field construction questions about “How to build….the field…the mound….the infield
etc..? Ive posted a few blogs over the years about these tasks but before you get into the details lets talk about the basics.
First and foremost; Building a baseball field takes planning and unfortunately sometimes
more money than you may have in your budget. One of the first questions to ask yourself is … Do you have enough land or property and will be the field
be oriented properly? A field is about 100,000 sq ft but when you add parking, backstops, dugouts bullpens etc. this number creeps up to 200,000 sq ft quickly. I would also suggest the following questions be
asked of those involved before you put a shovel in the ground.
1. Usage of the field: Who? How much? and when? These questions will guide you towards the level of field you will need to build.
2. What Type of Grass: Natural…Bluegrass or Bermuda?…or synthetic? A big push on synthetics lately have had a lot of folks going that direction but be very cautious when considering this choice as there is still extensive maintenance to the field and eventually you need to change the turf after the warranty runs out. To clarify – synthetic has its place in the sports industry but just do your homework.
3. How much money do we have? That’s a loaded
question but after the previous questions it is time to bring the
accountant in! Where can we find the money to build the field we want?
Are there Grants? Private? Municipal Funds? Donations?
4. Who will maintain the new field and at what level ?
In house maintenance? Outsource maintenance? Again …budget the
entire field including maintenance operations before you build it.
Example: Don’t build a Ferrari when you don’t have the budget to
take care of it. Taking care of a high performance sports field takes a
lot of money
5. Selecting someone to design and build it? Again..
its an examination of your internal resources and if you have staff
that understands how to develop a design or construction
specification thats great. Designing your new field with the right goals for usage
is what you should be shooting for. Hiring a reputable firm to design
your field is critical to the success of the field.
6. Should you hire a consultant for owners representation?
Unless you have a sportsturf manager in your organization that has had experience the design ad development of sports fields it may be a good idea to bring in someone to help out. 7. Should we consider asking for Sponsorships to help offset material
costs? There are venodrs out there tat will reduce pricing of materials to land a long time agreement but they are limited due to the economic climate.
8. Can the Community help? Have you heard of the MLB’s Baseball
Tomorrow Fund? A great place to start looking for possible grants to help you subsidize your field construction
Once you have decided on some of the issues above and hired a
reputable sports field contractor to install your field, You will be on
your way towards building your field of dreams.
Baseball’s mound has evolved over the years. Back in the late 1800s, it was 45 feet from home plate and the pitcher could take a couple of steps with the ball when throwing. Later, the pitcher had a 6-foot-square box as the designated area and had to stay within that box when throwing. The mound was initially defined in the rules in the early 1900s with the pitching rubber at a height of no more than 15 inches above home plate. Because mounds were at varying heights up to 15 inches, the rule was changed in the 1950s, setting 15 inches as the uniform height. Baseball became a pitcher’s game. In the late 1960s, pitcher Bob Gibson had an ERA of 1.12 and MLB’s top hitter, Carl Yastrzemski, was batting .301. During the 1968 season, over one-fifth of all MLB games were shutouts. The rule was officially changed in 1969, establishing the height of the pitching rubber at 10 inches above home plate–period–not 10 inches above the grass. That rule changed the way the game was played. At 15 inches, pitchers were told to “stand tall and fall.” With the change to 10 inches, it became “drop and drive.” The pitchers would drop down and push off from their right or left leg.
That 10-inch height is mandatory for major and minor league baseball, NCAA Baseball and most high school programs. (Check the official governing body for rules at each level of play.)
This is the method I use for new construction or total reconstruction of a mound. There are many other methods, but I’ve found this is the simplest way.
You’ll need a plate compactor, hand tamp, landscape rake, shovel, level board, hose and a water source. I prefer the professional block-type, four-way pitching rubber. You can flip it each year and get four years of use from it.
The most important thing you need is the clay. I suggest using two types: a harder clay on the plateau and landing area and your regular infield mix for the sides and back of the mound. The harder mix has more clay, with a typical mix about 40 percent sand, 40 to 50 percent clay and 10 to 20 percent silt. The infield mix for the rest of the mound is typically about 60 percent sand, 30 percent clay and 10 percent silt. Suppliers offer several options in bagged mound mixes, some of which come partially moist, some almost muddy and some as dry as desert sand. Be aware of those factors as you evaluate your clay sources. Any of the commercially bagged, vendor-provided mound mixes are heavy in clay and good to work with. When you purchase the material from a vendor, you know you’ll be getting the same thing each time. Bricks are also available for the harder clay. Some people prefer these, which are packaged moist and ready to go into the ground. Others prefer the bagged mixes for more flexibility in establishing moisture levels.
You’ll want to have 8 to 10 tons of clay available to build the mound; 2 tons of the harder clay and 6 to 8 tons of the infield mix. You’ll need wheelbarrows or utility vehicles for loading and unloading it–and people to help move it.
The most accurate way to set your distances and heights is to use a transit with a laser. If you don’t have access to this, you can use a string line run between steel spikes with a bubble level that you clip onto the string. Or, you can build a slope board.
Tackling the task
Plan for the proper orientation when constructing a new field or when building a mound for practice purposes. You’ll want the line from home plate through the pitcher’s mound to second base to run east-northeast so the batter isn’t looking into the sun when facing the pitcher. As you prepare to construct the mound, use the transit and laser or string lines to make sure home plate, the pitcher’s mound and second base are accurately aligned and everything is square.
For a regulation MLB field, the distance from the back of the home plate to the front of the pitching rubber is 60 feet 6 inches. The typical pitcher’s mound is an 18-foot circle with the center of the pitching mound 18 inches in front of the pitching rubber. That makes the measurement from the back of the home plate to the center of the pitcher’s mound 59 feet. Too often, the rubber is accidentally placed in the center of the pitcher’s mound so be sure you have the measurements right.
If you’re using the string line, place one steel spike behind the pitching rubber location and one just beyond home plate. Put a pin at the 59-foot point in the center of the mound area and stretch a 9-foot line out from it, moving it all around the pin to mark the outer line of the 18-foot circle. If the grass is already in place, protect it with geotextile and plywood while you’re building the mound.
Leave the pin in the center and place a second pin where the pitching rubber is going to be and mark the pin at 10 inches above home plate. Then, start bringing in the clay to form the base of the mound. Establishing the right moisture content within the clay mix is the key to building the mound. That consistency has been described as just a bit drier than that of Play-Doh when it first comes out of the can. It’s one of the instances where the science and art of sports field management mesh, learning by doing what that right consistency is given the material being used, the outside temperatures and humidity levels, sun, shade or cloud cover, wind speeds and direction. These factors vary daily–and often hourly–and make a difference in the formula that will keep the mix at just the right moisture level.
That’s why you will build the mound in 1-inch levels, creating the degree of moisture you want in each level so it will be just tacky enough for the new layer to adhere to the previous one. Use a tamp to compact each level. It’s important that the hard clay used to build the plateau and landing area is a minimum of 6 to 8 inches deep. You can put down plastic or wrap the tamp with a towel or piece of landscape fabric to keep it from sticking to the clay. You can’t add soil conditioner between these layers, as that will keep them from bonding together. Check the measurements of the height, using the transit and laser or the string line, with every lift of clay.
When you’ve built up the subbase with hard clay at the 60-foot-6-inch area to a 10-inch height, construct the plateau 5 feet wide by 34 inches deep. Position the front of the pitching rubber 60 feet 6 inches from the back of home plate. Set it firmly in place, making sure it is level across the length and width, with the top surface exactly 10 inches above the level of home plate. Draw a centerline through the pitching rubber and run a string from home plate to second base to confirm the rubber is centered.
With the pitching rubber in place and the plateau completed, you can begin to build the slope toward the front of the mound. Begin the slope 6 inches in front of the toe plate creating a fall of 1 inch per each foot. Double-check the accuracy of the slope using the transit and laser or the string line.
You’ll be using the harder mound clay to create the pie-shaped front slope of the mound, as this section will provide the landing area for the pitcher. Use the same method of clay mix, water and tamping, working in 1-inch increments.
You’ll use the infield mix to construct the remainder of the mound. Begin working from the back edge of the plateau using the same layering process. Use the edge of the slope board or a large wooden plank, positioning the top edge on the back of the plateau area and the other edge of the board on the edge of the grass to guide the degree of slope for the back and sides of the mound. Looking at the mound from the front as a clock face, you’ll be completing roughly the area from 9 a.m. to 3 p.m. to transition into the wedge in the front of the mound. You’ll want a smooth area of slope for the back and sides so that the side section precisely meets the edge of the pie-shaped wedge that is the front of the mound. Upon completion, the mound should look like a continuous circle with no indication that different materials have been used.
The dimensions, working from the outer edges of the 5-foot-by-34-inch plateau, are mathematically accurate to make the back and side segments a perfect fit. They tie into the wedge with the 1-inch to 1-foot fall of the front slope that begins 6 inches in front of the pitching rubber.
Once the mound is completed, top it with a 1/8-inch layer of infield conditioner so it won’t stick to the tamp. Then, cover the mound with a tarp and keep it covered to prevent it from drying out and cracking. Once the mound is properly constructed, you’ll have only the easier, but ongoing, task of managing the moisture level as you repair the mound after every practice and game.
Above Article Published in www.sportsfieldmanagementmagazine.com
The level of competition and the expectations of your field users dictate the kind of pregame maintenance routine you’ll have. The routine is a short version of your daily and weekly long-term care. It’s an integral part of the multitude of tasks that need to be done prior to a game. The following basic routine is what would take place in typical, sunny weather conditions. Obviously, rain, snow or other disruptive weather would require major adjustments.
The game day maintenance process actually begins the day before, with the focus on putting the field in its best playing condition for the next scheduled game time. The day starts with mowing. Generally, the foul lines are repainted and the coaches’ boxes marked once mowing is completed. Since time will be limited for the pregame prep, water the infield area heavily early in the morning and/or the night before to reach the best amount of moisture by pregame so only a light wet-down is needed prior to game time. You may need to add water throughout the day, depending on the type of infield surface you have. Smooth out the mound and home plate area and cover them again.
Whether the field serves recreational or pro-level play, make sure you have the right equipment and tools for the pregame routine in good operating order, staged and ready to go. Develop a checklist. Cover all the details in advance. Put gas in the utility vehicle or field rake; chalk in the chalk box, etc.
This is a highly orchestrated routine, and you are the conductor. Develop a plan; assign specific duties based on the time frame you normally have, and make it consistent. Review all the details, making sure every crew member understands how everything works and knows exactly what to do. Practice to ensure it flows smoothly, striving to make it a little better each time.
Pregame for rec-level baseball
This pregame routine for recreational-level baseball is plotted for a quick 15-minute fix with a two-person crew, designated here as “Jack” and “Jill.” Jack drags the infield, generally with a cocoa mat, but if the surface is chewed up from practice, using a screen mat. It’s an on-the-spot judgment call, so have both mats staged and ready. Jack pulls the practice bases and inserts the plugs prior to dragging.
Generally, the infield foul lines would already be in place, having been lined out and put down earlier with a chalk marker. If not, Jack will drag the larger infield area, and the lining and chalking will take place as soon as dragging is completed.
Jill starts doing the home plate and mound work. If there’s no hitting mat, Jill will need to do hole repair with packing clay. If a mat was used, Jill just smoothes the area, first using a rake and following with a screen mat or cocoa mat. Jill then sets the batter’s box frame and puts down the chalk.
By now, Jack has finished dragging. He moves on to fix the pitcher’s mound, paint the pitching rubber and home plate and do any needed touch up on the foul lines in the infield area. Jill starts watering the infield, taking care to avoid the foul lines and the grass. Jack comes in to hold the hose once the other tasks are completed.
Jill places a towel (or an old plate) to cover home plate, lightly waters that area and removes the towel. If there are any dirt issues, Jill sweeps it off with a towel and takes a handful of chalk from the chalk box, rubs it into home plate to help dry it and removes excess chalk.
Once the watering is complete, Jill marks the coaches’ boxes if they haven’t been marked previously. Jack sets the bases and does the final inventory to ensure all equipment is off the field and the setup is complete.
Assignments are adjusted for a three or four-person crew. For example, one person will pull the practice base and insert the plug at second and start dragging from second to third base. The third or fourth person will pull the practice bases at first and third, inserting the plugs. Crew members three and four will start the infield wet-down along the third base side, while person one moves on to drag along the first base side.
Pregame for pro-level baseball
At the pro level, in addition to basic pregame maintenance and setup, there’s an entire practice setup and take down. The question to keep asking is, “What else can I do to protect the field and make it better for the game?” The array of tools to accomplish that typically include: the pitching deck and the geotextile turf protector that goes under it, the batting cage, the turf protector for the back that fits around the batting cage and the extensions or separate pieces for the fungo circles, the trapezoid section that goes on the grass in front of home plate, the home plate mat, the protective screens for first and second bases, the ball shagging screen and two ball baskets on wheels.
Take a full inventory of the tools and equipment you have to make sure it’s all staged prior to use and picked up afterward. Each person is responsible for his or her assigned area and they provide the check, down to the tiny details. If they took 32 pins onto the field to anchor a protector, they need to be sure 32 pins came off.
For years, it was the custom in the major and minor leagues to take batting practice first and the infield practice afterward. When batting practice comes first, the setup usually takes about 20 minutes and starts when the team comes out to get loose. Over the past couple of years there’s been a trend for teams to take the infield practice before batting practice. If that’s their preference, you have to prepare to put the batting practice things out there the same way, but very quickly.
Another trend in the MLB is for the visiting team to take infield practice just once while in town and the home team just once during the home stand, generally prior to their first batting practice. For most low-level minor league play, everyone takes infield practice, with each team working for 10 minutes. Pregame practice is always a double cycle; the home team goes first, then the visiting team.
Communication between the head groundskeeper and coaches is key the night before the game to find out the plans for the next day. That may include an early practice, which means a few infielders or pitchers will do some drills prior to the typical batting practice. Some pitchers don’t want to throw off the pitching deck. Bottom line, whatever they want is what you do.
Communication with the front office is essential, too, so you know all the details for the first pitch and pregame ceremony, including the performance of the national anthem. You need to know who will be coming onto which area of the field and when it will take place so you can plug it into your setup schedule. Sometimes you’ll place a fake home plate for the ceremony. Your grounds crew will need to replace it because they know how to walk across home plate, approaching it from behind the catcher’s box to avoid tracking chalk around the batter’s box.
You need a lot of people to accomplish all this, typically five or six people for the minors and eight to 10 for MLB level. In Beijing, I had 14, which was necessary because some of the equipment was so heavy. With the increased numbers, activity and visibility, the orchestration becomes even more important.
On a typical practice day, batting practice (BP) comes before infield practice. You’ll have only 2 to 2.5 minutes to remove everything you’ve placed for BP. If your exit for the cage and screens is through the center field gate, you’ll need to take the cage and screens all the way off before infield practice can begin. If the exit is on the first or third base side, you can stage them off the field in foul territory temporarily, and then complete the removal.
Once the practices are completed for both teams, the pregame maintenance and setup begin. The basics are similar to the rec-level pregame routine, with more detail work added. One crew member will be dragging; others will be sweeping up loose clay around the mound and home plate; some will be removing any clay from the grass edge; some will be clearing any debris from the grass off the clay; some will be smoothing the area around the warning track with a fan rake; and one person with a smoothing board, rake or small drag will be working along the edges of the infield. At least four or five people will be holding the hose, with the one at the nozzle being extremely careful to keep any water from falling on the grass. Wet grass, which could result in a wet ball or damp cleats that pick up clay, is unacceptable on a sunny day at this level of play. Some crew members put down fresh chalk on the foul lines.
At all levels, the game bases are set after the watering is completed so they’ll be dry and not slick. For the pros, there’s a specific way of placing them so the logos are set consistently at first and third.
The head groundskeeper makes one final field walk, checking to ensure the setup is complete and no small details have been missed. If there is an issue, it’s fixed immediately and addressed prior to the next pregame setup. The goal is perfection.
Once you establish the most efficient plan, make it so consistent that it becomes routine so you can do it fast enough, but not so routine that you become complacent. If your guard is down, sometimes you forget something. Above all remember you are part of the “show” and a key member of the team, therefore presentation and how your staff looks on the field is also very important. Same shirt, cap, pants adds to the professionalism of your crew. Planning for the unexpected is also important. Things like irrigation system breaks, the water hose breaks, the cart runs out of gas while dragging the field, a base anchor is bent etc… Things happen so its best to have a procedure in place to deal with the unexpected.
The above article was published in Sports Field Management Magazine
Baseball is planning for a big year internationally in 2009. For a lot of reasons. Not only will we have the WBC (World Baseball Classic) but also in September, IBAF will hold the Baseball’s World Cup Championship throughout Europe. As I began blogging this entry we were rolling along the autobahn outside of Regensburg, Germany at 192 kilometers per hour. (Thats about 120mpg.) We were in Prague earlier in the day and
Stockholm on Tuesday. Today we are in Moscow. One thing all the sites have in common is traffic. It’s a common issue where ever you live and here in these European cities it’s the same. Traffic is traffic. My traveling partner on this excursion is Jim Baba Executive director of the Canadian baseball federation. We are part of the advance team for IBAF inspecting venues for the 2009 world cup. (Photo below is Jim Baba and “Jim” Georgia. Thats the Basilica behind us in Red Square) The Russian Federation were tremendous hosts! The photo of the outfield fence is quite electrifying! The astro turf type grass was partially replaced in the infield a couple years ago but the outfield turf is original…1989.
Each baseball venue will host the first round of competition with each site having 4 teams. With a 20 team tournament we will then go to the second round where locations are still being determined. On the list of other sites for the second round include locations in Italy, Spain and the Netherlands.
Regensburg, Germany is about 140 miles from Prague. Both Regensburg and Prague have nice sport complexes and stadium improvements are planned at all the venues. What is great about the new venue evaluation system is that we have more time to allow the venue to make improvements. Our suggestions and recommendations will help to improve the fields to bring there venues up to a higher standard of play for this particular tournament.
Regensburg has a type of blue/fescue blend turf type and Prague is all bluegrass. Stockholm is a variation of several grasses at the time and Moscow is synthetic. As I mentioned, the tournament is being played at a key time. Just a few weeks after the World cup the IOC will vote once again in Copenhagen to add new sports to the Olympic program for 2016 so baseball is staging a huge event throughout Europe to showcase the game in multiple European cities that embrace the sport. The folks we have met on this trip are baseball crazed!!!! Baseball was voted out of the Olympics for the 2012 year but if the vote goes well in Copenhagen we will be back in the Olympics for 2016.
This was my first time back to Moscow since being here in 1989 for the Diamond Diplomacy tour. Peter Kirk and a group of other Minor League owners brought over two minor league teams to play. At that time it was still the USSR and some folks joke about the fact that the next year the wall came down and the countries split due to baseball coming to tour the country. Dave Trembley manager for the Baltimore Orioles was the manager of the team we brought over to play friendly games with local clubs in Kiev, Tallinn and Moscow. The country has truly changed and for the better…except for the traffic.
Prague’s complex was delivered a brand new smithco today and also has a Jacobsen 1900 tri- king. The facility has 2 full size baseball fields and a couple youth facilities. It’s a real gem in Europe with a great location just outside of the old town in Prague. Stockholm will also be making some improvements to there venues to host a 4 team round. The Mayor of Stockhom and other local officials greeted us warmly.
First a bit if history:
Rule 1.04 in the MB rule book states, ” The pitchers plate shall be 10 inches above the level of home plate. The degree of slope from a point 6 inches in front of the plate shall be 1 inch to 1 foot and such degree of slope shall be uniform”. The rule book gos on to detail other mound specifics regarding the pitching rubber, the diameter and the size of the level area on top of the mound.
It didn’t used to be this way. In the late 1800’s approximately 1859, there was no pitching rubber, only a line that was drawn in the dirt about 45 feet from the home plate. A few years later they changed the line to a box so the pitchers could no longer take 2 or 3 steps before throwing the ball from the line. The front line of the 6-foot square box was still 45 feet from the home plate ….not 60 feet 6 inches like it is today. Another perspective is that the distance between home plate and the pitchers mounds initially was measured from the front foot of the pitcher during the early days of the game not as it is today where the distance is measured from the back foot.
In those days the batters were actually allowed to tell the pitcher where he wanted the ball thrown. In about 1882 they decided to move the “pitchers box back to 50 feet because it was beginning to be to tough on the hitter. A few years later they changed the rules again to make the pitching box a little smaller and the batter lost the control of telling the pitcher where to throw the balls.
During or around 1893, a pitcher’s plate made from wood not rubber was used. This pitching plate was installed about five feet behind the back edge of the pitchers box which gave us the 60 feet distance. The difference in the measurement of 60′ 6 inches and what was measured in that era was “supposedly” blamed on the groundscrew for not measuring the distance correctly. They probably had to blame it on someone and the groundskeeper was as good as any!
One must remember the pitchers mound was still flat during those years until they set a height of 15 inches in 1903. There is really no written notation of the word “mound” until the 1903 rules were formed.
The mound has remained the same distance from home plate for over 100 years. The next big change took place in the mid 1960’s when during that era, pitchers were dominating the game. Low ERA’s and both leagues naming pitchers MVP’S caused ownership to make another change around 1967. Following a season where Bob Gibson had a 1.12 ERA and Carl Yaztremski won the batting title with a 301 average, the mound was lowered to 10 inches in 1968. And if that wasn’t enough to change the game and make it more offensive, along came the DH a couple years later in 1973. With that change we saw a change in the pitchers mechanics change from the “stand tall and fall” to the “drop and drive”.
Today it appears things are swinging back the other way and they may need to make a change to the mound again (or get rid of the DH.) Only time will tell.
BUILDING A REGULATION MOUND (Option 1)
Tools and materials:
Plate compactor, hand tamp, landscape rake, transit, garden rake, an assortment of shovels, (round point and flat) string, 24 inch spikes, 6 foot level, plywood planks, hammer, water and water hose, two kinds of clay. Hard and regular infield mix. Hard as in 50% clay 10% silt and 40 sand. These can fluctuate a bit but you should have the material tested to be sure it meets a a very high clay content. You are going to need abut 6 to 10 tons of hard clays and infield clay type material, a cart or loader to move the clay in…some people use the baseball team w/wheelbarrels. Hard clay comes in bags and bricks. Either work fine but for maintenance I prefer the bags.
1. Set the distance ,height and exact location you are needing to establish your mound using a transit or laser leveling tool. A professional mound’s pitching rubber is set 10 inches above the home plate. Check it by taking a string through the center of homeplate to pitchers mound the second base. Keep this string handy as it will be a guide to making sure the plateaus is centered.
2. After setting your distance to the pitching rubber..Lets say it is regulation at 60’6″ then measure 18 inches in front of your 60’6″ mark to find the circumference of the mound.
3. The circumference is the width of the mound… which is 18 feet. It is now important to remove 4 inches of material from the circle. Put some plywood around the edge of the mound so you trash your turf while you are building the mound. Using strings and the 24 inch spikes can help keep you on track after setting the mound height. I have seen where guys will take a string across the mound 1st to third and place the pins right at the base of the mound…if you don’t have a transit some folks will use a “line level” These instruments are not a 100% but will get you close. Use this cross line to check height as needed.
4. Use the plate compacter to harden the area. Bring in the softer clay 60/30/10 to build the base. The base is the area directly under the plateau of the mound. The plateau is 5 feet wide and 36 inches deep. Raise this area in 1 inch lifts. Water then plate tamp after each lift until you get to about 4 inches from your finish height of the mound
5. Now place your pitching rubber in the desired location. Make sure a string is ran from the plate to second base to establish the center of the mound and the center of the rubber. It helps to take a pen and draw a line throught the center of the rubber as you are setting it in place
6. Check your level and height using a transit.
7. Begin to add the “hard clay around the pitching rubber to set it in place. Use the hand tamp during this period. Also use a small hand level to make sure the rubber is level.
9. Once you have the plateau built you will need to start the slope. Remember the fall is 1 inch per foot towards home plate.
10. Take a board about 10 feet long, (the straightest one you can find) and mark it at every foot starting first foot 6 inches from the rubber. Block up the board so it is level. Some people build a big “T” at the end of the board so it can stand without some one holding it. You can purchase a pitching slope frame from Beacon Ball fields or beam Clay. These are metal poles that are designed to check your slope daily.
11. The entire landing area is made from the hard clay. It is about 7 feet wide and 8 feet long. The sides and back of the mound can be made from infield clay… using the same 1 inch per lift…plate tamp, water, then 1 more inch…plate, then water,…etc until you have the slopes completed always checking your plateaus
12. Maintaining moisture is the key to the mound…don’t let it dry out and crack. The idea is to keep it moist so it is pliable and gives the players Superior footing. Get a tarp and spike it down and always keep it covered when not being used.
We can talk about maintenance of the mound later on..that’s another blog in it self.
Hope this gets you guys/gals started on the right foot. I have seen several methods and this is just one approach. Some people actually build the entire mound out of infield mix first and then take out the landing area and soft clay around the mound and then replace it…sort of like a cookie cutter method.
This question comes across my desk a couple times a week. I normally give the same answer. “It depends…on a lot of things!” If you have bare areas of turf, or the grass is growing all over your infield and the lips on the field look like they are a foot high….. you need to do something. Just remember, its not only what you do to improve your field, it also how you go about it and to what level!
Here are few pointers that may be helpful as you plan:
1. Evaluate what type and how many events are held on the field. You don’t want to be in a situation where you do a great job with the renovation only to find out your back in the same place again the following year.
2. Determine your budget after you find out how often the field will be used. This will help determine what type and level of field you will have to build. The more the use….the more you should invest in the construction of the field. Also determine the time you have to re-build your field? Fall , Spring or maybe you only have a 7 day window?
3. Make sure you have someone on staff that understands field construction and specifications so they can help you design exactly what you if not seek help from your local university or extension service.
4. Plan for maintenance operations. Assess your maintenance budget because that may be the weak link in your field operation. A great field can turn into a bad field very quickly without proper maintenance.
A general rule of thumb, If your field is over half covered with weeds its time to replace the turf. Trying to change it back to one healthy grass is possible but it will take a few years.