What is the distance from Sta. 3+12.75 to Sta. 3+15.50?

To determine the distance between two stations, you need to look at the stationing format used in construction, where the notation Sta. (station) represents specific points along a roadway, often indicated in feet. The format includes two parts: the first number (before the plus sign) represents the whole station, and the second part (after the plus sign) represents the additional feet.

In this case, you are comparing Station 3+12.75 and Station 3+15.50.

• For Station 3+12.75, this can be interpreted as 3 stations and 12.75 feet.

• For Station 3+15.50, it corresponds to 3 stations and 15.50 feet.

To find the distance between these two stations, subtract the feet of the first station from the feet of the second station:

15.50 feet - 12.75 feet = 2.75 feet.

Thus, the distance from Sta. 3+12.75 to Sta. 3+15.50 is indeed 2.75 feet, confirming that this is the correct choice. This method of calculation is crucial in highway construction and inspection practices for measuring distances along a constructed roadway accurately.