This box usally found in the corner, explains what the symbols and colors represent.
What is a Legend or Key
This test is a measure of relative fluidity or mobility of the concrete mixture.
What is a slump test.
This engineering agency is typically involved in military, government and public works projects.
Our neighbor to the North, we aspire to do things better than this city.
What is Woodbury
This four-letter acronym has become the nightmare of every city's water supply in Minnesota...
What are PFAS
These are lines you might see on a map and are also known as meridians.
What are lines of longitude
A metallic plate or sheet, woven-wire cloth, or other similar device with regularly spaced apertures of uniform size mounted in a suitable frame or holder for use in separating granular material according to size.
What is a Sieve
Sir Issac Newton formulate this equation in 1687 and it has become the "go-to" equation for many engineers and physicists.
F = ma
What is Newton's Second Law of Motion.
This company has been a mainstay in Cottage Grove since 1947.
What is 3M
While the Twin Cities and St. Cloud use the Mississippi River, this is the percentage of all Minnesotans who rely on goundwater as their primary drinking source.
What is 75 percent.
This Venetian merchant's 13th century travels through Asia were so detailed that they served as the basis for European maps for Centuries
Who is Marco Polo
The capability of a material or process to develop a system of microscopic bubble of air in cement paste, mortar or concrete during mixing.
What is air entraining
The collapse of the 35W Bridge was traced back to this specific type of steel connector plate, which was found to be only half as thick as it should have been in the original 1960's design.
What are gusset plates.
Famous for playing Steven Siffler in the American Pie series, this actor is from Cottage Grove.
Sean William Scott
Predominant in the driftless area, this type of topography features sinkholes and caves that allow surface pollutants to reach groundwater in just hours.
What is Karst topography.
What is a "projection"
This law of concrete says that for a given set of materials, the strength of the concrete mix is determined almost exclusively by the ratio of the weight of water to the weight of the cement.
What is Abrams' Law
This 2,100-foot-long former railroad bridge build by James J Hill in 188s is the only one of its kind over the Mississippi and is now a National Civil Engineering Landmark.
What is the stone arch bridge.
This home located on Lamar Ave is now on the National Register of Historic Places and is a Cottage Grove icon
What is Fuber Farm
what is Nitrate or Nitrogen.
Navigators love this specific type of line that crosses all meridians at the same angle allowing for a constant compass bearing
What is a loxodrome or rhumb line
Slump cones are famous for their 12-inch height, however, its top and bottom diameters are these sizes
What are 4 inches and 8 inches.
The 1940 collapse of this suspension bridge nicknamed "Galloping Gertie" let to a revolution in the study of aerodynamics in bridge design.
what is the Tacoma Narrows Bridge
First platted in 1871 by many of New England descent Cottage Grove earned this nickname according to the Washington County Historical Society.
What is "New England of the West"
Much of Central Minnesota gets its water from these types of aquifers, which were created by melting glaciers and consist of "surficial" or "buried" deposits of sand and gravel.
What are Quaternary or Glacial aquifers