GEOLOGIC DATA METHODS: TUNNELS

1. GIVEN: TOPOGRAPHIC MAP WITH TUNNEL ALIGNMENT

- ADJUSTMENTS MADE IN TUNNEL ALIGNMENT

- INCREASE HEAD DIFFERENCE

- CONTOUR INTERVAL: 10 FT

- HORIZONTAL SCALE: 1 IN. = 80 FT: 40 SCALE x 2

- NORTHWEST PORTAL ELEVATION IN ROCKY PEN RUN:_180 FT

- DOWNSTREAM PORTAL ELEVATION: 160 FT_

2. TUNNEL LENGTH: 5600 FT

3. CONSTRUCT THE TOPOGRAPHIC PROFILE OVER AND ALONG THE TUNNEL ALIGNMENT

- VERTICAL SCALE: 1 IN. = 200 FT

- VERTICAL EXAGGERATION: VE = ______

- SHOW:

- GROUND SURFACE

- TUNNEL PROFILE

- LABLE DIAGRAM

- USE ENGINEERING PAPER

4. PLOT GEOLOGIC STRUCTURES ON TOPOGRAPHIC PROFILE

N

CONTOUR INTERVAL 10 FT