You may not pass other vehicles within ____ of a bridge, viaduct, or tunnel.
- 200 feet
- 100 feet ✓
- 500 feet
- 350 feet
Answer: B. 100 feet
You may not pass when you are 100 feet or closer to a bridge, viaduct, or tunnel.
Why this is the answer
The handbook lists the places where you must not drive on the left side of the road, and being 100 feet or closer to a bridge, viaduct, or tunnel is one of them. Passing another vehicle normally means moving to the left, so that same distance limit applies when you are thinking about passing. The rule gives you a clear distance to stay back near these structures rather than treating the approach as a passing area. The handbook does not give a separate longer or shorter distance for this situation.
Why the other answers are wrong
- A. 200 feet — A 200-foot limit is not the distance the handbook gives for bridges, viaducts, or tunnels; it names 100 feet.
- C. 500 feet — The handbook does not set a 500-foot no-passing distance for these structures; the stated distance is shorter.
- D. 350 feet — A 350-foot limit is not supported by the handbook, which lists 100 feet for this no-passing situation.
Remember it
Picture the 100-foot mark as the start of the no-passing zone at a bridge, viaduct, or tunnel.
Official handbook: Texas Driver Handbook (DL-7), Chapter 5: Signals, Signs, and Markers , p. 38