117.39—Authorized closure of drawbridge due to infrequent requests for openings.
(a)
When there have been no requests for drawbridge openings for at least two years, a bridge owner may request in writing that the District Commander authorize the drawbridge to remain closed to navigation and to be untended.
(c)
All drawbridges authorized to remain closed to navigation, under this section, must be maintained in operable condition.
(e)
Drawbridges authorized under this section to remain closed to navigation and to be untended are identified in subpart B of this part.