A bridge over a navigable waterway is being...

Study

Question 1 of 2066636ee928f7522a1c51921e

A bridge over a navigable waterway is being repaired. There is a traveler platform under the bridge's deck that significantly reduces the vertical clearance. If required by the CG district commander, how will this be indicated at night?

Back

Question 1 of 20

66636ee928f7522a1c51921e

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

• 33 CFR Part 118 – Bridge Lighting and Other Signals • How reduced vertical clearance under bridges is marked for navigation, especially temporary work platforms or travelers • Differences between general area illumination and specific obstruction/clearance lights

💭 Think About

• Which choice sounds like a general work/area light, and which sound like specific navigation/obstruction signals required by regulation? • If a traveler platform reduces clearance only in certain parts of the span, where would lights logically be placed so a mariner can judge the lowest point? • Think about typical light colors and characteristics used by the Coast Guard for hazards vs. routine markings—do strobe, amber fixed, flood, or quick-flashing red best match a regulated hazard indication under a bridge?

✅ Before You Answer

• Verify in 33 CFR 118 how temporary structures or work platforms under bridges must be marked at night. • Check whether color and flash characteristic (steady vs. quick-flashing, amber vs. red) are specified for reduced vertical clearance under a bridge. • Confirm if the regulation calls for lights at the outer edges/corners of the obstruction, or just general illumination.

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed