CFR > Title 29 - Labor > SUBTITLE B—Regulations Relating to Labor > CHAPTER XVII—OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR (parts 1900 to 1990) > PART 1926—SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION > SUBPART S—Underground Construction, Caissons, Cofferdams and Compressed Air (§1926.800 to §1926.804) > 1926.802—Cofferdams.

1926.802—Cofferdams.

(a) If overtopping of the cofferdam by high waters is possible, means shall be provided for controlled flooding of the work area.
(b) Warning signals for evacuation of employees in case of emergency shall be developed and posted.
(c) Cofferdam walkways, bridges, or ramps with at least two means of rapid exit shall be provided with guardrails as specified in subpart M of this part.
(d) Cofferdams located close to navigable shipping channels shall be protected from vessels in transit, where possible.