The coordinates will take you to a sign. All the information you need to complete this easy field puzzle is on the sign. You'll also have a very good view of the new bridge.
The final coordinates are: N46° 3A.BCD' W87 3E.FGH
The new bridge has A spans.
The three-sided culvert is C ft. x 5 ft. x 149 ft.
In the year of the Silver Lake Flood, the weight limit of the old bridge was reduced to BD tons.
The new bridge is just under E times as long as the old bridge.
If you add the numbers in the County Road, the total is F
G = the number of loads of concrete used for the new bridge divided by 50.
H = the number of letters in the high school whose Construction Trades Class built the sign