agency controlling the bridge shall provide arrangements whereby the draw tender can be readily reached by telephone or otherwise at any hour of the day or night.

(d) Upon receipt of such notice, the authorized representative of the owner of or agency controlling the bridge, in compliance therewith, shall arrange for the prompt opening of the draw, at the time specified in the notice for the passage of the vessel.

(e) The owner of or agency controlling the bridge shall keep conspicuously posted on both the upstream and downstream sides of the bridge, in such manner that it can be easily read at any time, a copy of the regulations in this section, together with a notice stating exactly how the draw tender may be reached in an emergency and how the authorized representative may be reached by telephone or otherwise.

(f) The operating machinery of the draw shall be maintained in a serviceable condition, and the draw shall be opened and closed at intervals frequent enough to make certain the machinery is in proper order for satisfactory operation. § 117.5 Townsend Gut, Maine; bridge (highway) of town of Southport.

(a) That the draw of the bridge shall be opened promptly upon reasonable signal for the passage of boats except when there are vehicles, animals, or foot passengers on the bridge; but in no case shall the delay in opening the bridge from this cause exceed five minutes: Provided, That the signal may be given by three distinct blasts of whistle, horn, or conch, or by shouting with the voice.

(b) All boats desiring to pass through the draw shall be allowed to do so freely and without interference at a speed not exceeding 5 knots per hour.

§ 117.5a Sheepscot River, Maine; Maine State Highway Commission bridge (U.S. Route No. 1) between Wiscasset and Edgecomb.

(b) From October through May the draw will be opened on a 24-hour advance notice in person, in writing or by telephone to the Maine State Highway Commission, Augusta, Maine.

(c) The owner or agency controlling the bridge shall provide arrangements whereby the agent may be conveniently reached by telephone or otherwise, and shall keep posted conspicuously on both the upstream and downstream sides of the bridge in a position where it can be read easily at any time, a copy of these regulations together with a notice stating how the agent may be reached at any time.

(d) The draw need not be opened at any time for vessels capable of passing under the bridge with the draw closed. § 117.6 Back River, Maine; highway bridge between Hodgdon and Barter Islands in the town of Boothbay, Maine.

(a) The draw shall be opened promptly on signal for the passage of vessels between the hours of 8:00 a.m. and 5:00 p.m. (local time) during the months of June to October, inclusive. At other hours during these months the draw need not be opened for the passage of vessels except on previous notice in person, by telephone, or in writing to the drawtender. Such previous notice to be received during the hours the drawtender is on duty.

(b) From November to May, inclusive, the draw need not be opened for the passage of vessels any hour of the day or night except on a 24-hour advance notice to the drawtender of the bridge over Townsend Gut between Southport and Boothbay Harbor, Maine, or to the Maine State Highway Commission, Augusta, Maine.

(c) Upon receipt of such notice, the authorized representatives of the owner or agency controlling the bridge, in compliance therewith, shall arrange for the opening of the draw at the time specified in the notice for the passage of the vessel.

(d) The owner or agency controlling the bridge shall keep conspicuously posted on both the upstream and downstream sides of the bridge, in a manner that it can be easily read at any time, a copy of the regulations in this section, together with a notice stating exactly how the representative stated in paragraph (b) of this section may be reached.

§ 117.8 Kennebec River, Maine; Maine State Highway Commission highway and railroad bridge (Carlton Bridge) between Bath and Woolwich.

(a) The owner of or agency controlling this bridge shall provide the necessary draw tenders and the proper mechanical appliances for the safe, prompt, and efficient opening of the draw for the passage of vessels.

(b) The draw shall, upon receiving the prescribed call signal, be opened promptly at any time, day or night, for the passage of any vessel or other watercraft not able to pass under the closed bridge: Provided, That the draw shall not be opened when a train is approaching so closely that it cannot safely be stopped before reaching the bridge, or when a passenger or mail train is approaching within sight or hearing of the draw tender.

NOTE: If it is desired to give advance notice of the approximate time an opening will be required, the draw tender may be reached by telephone at any time.

(c) Sound and visual signals: Both sound and visual signals shall be given together under any weather conditions and whether sound signals can or cannot be heard.

(1) Call signal for opening of draw. Three blasts or three loud and distinct strokes of a bell, and a flag by day or a lighted lantern at night swung in circles at arm's length from the bridge or pilot house of the vessel. The call signal shall be given when the vessel is within a reasonable distance of the bridge, and shall be repeated at intervals until acknowledged.

(2) Acknowledging signals when draw can be opened immediately and is in process of being lifted. Flashing yellow light and whistle in series of three flashes and blasts with four seconds between each series, to be continued until confirmed. The vessel shall confirm by three blasts or three loud and distinct strokes of a bell, and a flag by day or a lighted lantern at night raised and lowered in vertical plane a number of times.

(3) Acknowledging signals when draw cannot be opened immediately. Flashing red light and whistle in series of five flashes and blasts with five seconds between each series, to be continued until confirmed. The vessel shall confirm by five blasts or five loud and distinct strokes of a bell, and a flag by day or a lighted lantern at night swung to and fro horizontally a number of times.

99-180-69-25

NOTE: As used in this paragraph, the term "blasts" means distinct blasts of a whistle, horn, or megaphone each of one second's duration and at one-second intervals. The flashing yellow and red lights referred to will be located on the west side of the river on the upstream and downstream sides of the bridge near the operator's house at a height of about 75 feet above mean high water.

(d) Trains and vehicles shall not be stopped on the bridge for the purpose of delaying its opening, nor shall watercraft be handled so as to hinder or delay the operation of the draw, but all passage over or through the bridge shall be prompt to prevent delay to either land or water traffic.

(e) The owner of or agency controlling the bridge shall keep conspicuously posted on both the upstream and downstream sides thereof, in such manner that it can be read easily at any time, a copy of the regulations in this section. § 117.10

Kennebec River, Maine; Maine State Highway Commission bridges between Richmond and Dresden and between Gardiner and Randolph.

(a) The owner of or agency controlling these bridges shall provide the necessary draw tenders and the proper mechanical appliances for the safe, prompt, and efficient opening of the draws for the passage of vessels.

(b) The draw of each bridge shall, upon receiving the prescribed call signal, be opened promptly at any time, day or night, for the passage of any vessel or other watercraft not able to pass under the closed bridge: Provided, That the draw shall not be required to be opened between 9:00 p.m. and 5:00 a.m. except when advance notice of the time an opening is desired is given to the draw tender in person or by telephone or letter.

The owner of or agency controlling the bridges shall provide arrangements whereby the draw tenders can be readily reached by telephone or otherwise at any time between 5:00 a.m. and 9:00 p.m. Notices stating exactly how the draw tender may be reached shall be posted in the same manner as the copies of the regulations posted in accordance with paragraph (e) of this section.

(c) Sound and visual signals: Both sound and visual signals shall be given together under any weather conditions and whether sound signals can or cannot be heard.

(1) Call signal for opening of draw. Three blasts, and a flag by day or a lighted lantern by night swung in circles at arm's length from the bridge or pilot house of the vessel. The call signal shall be given when the vessel is within a reasonable distance of the bridge, and shall be repeated at intervals until acknowledged.

(2) Acknowledging signals when draw can be opened immediately. Three blasts, and a flag by day or a lighted lantern at night raised and lowered in vertical plane a number of times.

(3) Acknowledging signals when draw cannot be opened immediately. Five blasts, and a flag by day or a lighted lantern at night swung to and fro horizontally a number of times.

NOTE: As used in this paragraph, the term "blasts" means distinct blasts of a whistle, horn, or megaphone, or loud and distinct stroke of a bell.

(d) Vehicles shall not be stopped on a bridge for the purpose of delaying its opening, nor shall watercraft be handled so as to hinder or delay the operation of the draw, but all passage over or through a bridge shall be prompt to prevent delay to either land or water traffic.

(e) The owner of or agency controlling the bridges shall keep conspicuously posted on both the upstream and downstream sides of each, in such manner that it can be read easily at any time, a copy of the regulations in this section.

§ 117.15 Presumpscot River, Portland, Maine; bridge (highway) at Martins Point, Portland, Maine.

(a) That on week days between April 1 and November 30 the draw shall be opened promptly upon signal between the hours of 7 a.m. and 6 p.m. Between December 1 and March 31 and on holidays and Sundays throughout the year. the draw shall be opened only upon timely previous notice in person or in writing or by telephone to the draw tender.

(b) That the signal for opening the draw shall be five blasts of steam whistle on steam vessels or towboats, and five blasts from a horn on sailing or gasolinedriven vessels.

(c) That boats and tows shall approach and pass through the draw at a speed no higher than that required for good steerageway.

§ 117.20

Back Cove, Portland, Maine; Canadian National Railway bridge.

(a) The draw of the bridge shall be opened promptly on signal for the passage of vessels that cannot pass the closed draw between 8:00 a.m. and 12:00 midnight (local time) from June 1 to October 1. At all times other than those specified above, the draw will be opened on a twelve hour advance notice given to the General Agent of Grand Trunk Railway, 1 India Street, Portland, Maine. The owner of or agency controlling the bridge shall provide arrangements whereby the General Agent may be conveniently reached by telephone or otherwise, and shall keep conspicuously posted on both the upstream and downstream side of the bridge in a position where it can be read easily at any time, a copy of the regulations of this section together with a notice stating how the agent may be reached at any time.

(b) The signal for opening the draw promptly when required shall be three short blasts of a whistle or horn.

§ 117.25 Fore River, Portland Harbor, Maine; bridge (highway), known as "Portland Bridge".

(a) The owner of or agency controlling the drawbridge shall provide the same with the necessary tenders and the proper mechanical appliances for the safe, prompt, and efficient opening of the draw for the passage of vessels.

(b) If the weather conditions are good and sound signals can be heard when a vessel approaches the drawbridge and desires to pass through the draw, three distinct blasts of a whistle, horn, or megaphone shall be sounded from the vessel when within reasonable hearing distance of the bridge.

(1) When the draw of the bridge can be opened immediately, the draw tender shall reply by three distinct blasts of a whistle, horn, or megaphone or by three loud and distinct strokes of a bell.

(2) When the draw of the bridge cannot be opened immediately or when the bridge is open and is to be closed immediately, the draw tender shall reply by two long distinct blasts of a whistle, horn, or megaphone or by two loud and distinct strokes of a bell.

(c) When weather conditions prevent hearing the sound signals when a vessel approaches the drawbridge and desires to pass through the draw, signals shall be made from the vessel by swinging in circles at arm's length a lighted lantern at night and a flag by day.

(1) When the draw of the bridge can be opened immediately, the draw tender shall reply by raising and lowering in a vertical plane a number of times a lighted lantern at night and a flag by day.

(2) When the draw of the bridge cannot be opened immediately or when the bridge is to be closed immediately, the draw tender shall reply by swinging to and fro horizontally a number of times a lighted lantern at night and a flag by day.

(d) When two or more vessels are approaching the drawbridge at nearly the same time from the same or opposite directions with the draw opened or closed, each of these vessels shall signal independently for the opening of the draw and the draw tender shall reply as prescribed and in turn to the signal of each vessel.

(e) The draw shall be opened with the least possible delay at all hours upon receiving the prescribed signal for the passage of any vessel or vessels or other water craft not able to pass underneath it.

(f) When a bridge tender is about to close a draw, he shall sound two distinct blasts of a whistle, horn, or megaphone, or two loud and distinct strokes of a bell.

(g) Wagons and other vehicles shall not be stopped on a drawbridge for the purpose of delaying its opening, nor shall water craft or vessels be so manipulated as to hinder or delay the operation of a drawspan, but all passage over, through, or under a drawbridge shall be prompt, to prevent delay to either land or water traffic.

(h) The owners of or agency controlling the drawbridge shall provide and keep in good legible condition two board gages painted white, with black figures not less than 6 inches high, to indicate the headroom clearance under the lower chords of the closed drawspan at all stages of the tide. The gages shall be so placed on the erds of the drawspan fender that they will be plainly visible to the operator of a vessel approaching the bridge either upstream or downstream, and the said gages shall be illuminated at night.

(i) Vessels which can pass under the drawbridge with a clearance of 2 feet or more should not signal for the opening of the draw. In case such a vessel gives the prescribed signal and the draw tender is uncertain as to whether the vessel can safely pass, he will open the draw and if

he finds that there would have been a clearance of 2 feet or more had the draw remained closed, he will report the matter immediately to the District Commander giving the name of the vessel, the time of opening the draw, the headroom under the bridge as indicated by the gage at the time of opening the draw, and the approximate headroom required by the vessel.

§ 117.28 Kennebunk River, Maine Dock Square Highway Bridge between Kennebunk and Kennebunkport, Maine.

(a) The draw shall be opened promptly on signal for the passage of vessels between the hours of 7:00 a.m. and 5:00 p.m. (local time) on all days of the year.

(b) At times other than those specified in paragraph (a) of this section, the draw need not be opened for the passage of vessels except on advance notice to the drawtender to be given between the hours of 7:00 a.m. and 5:00 p.m. when the drawtender is on duty.

(c) The owner or agency controlling the bridge shall keep conspicuously posted on both the upstream and downstream sides of the bridge, in a position where it can be easily read at any time, a copy of the regulations in this section. § 117.35 Piscataqua River, Maine and N.H.

(a) Bridge (highway) between Portsmouth, N.H., and Kittery, Maine. (1) The draw shall, upon the signals prescribed in subparagraphs (2) and (3) of this paragraph being given, be opened promptly at all hours for the passage of any vessel or vessels or other watercraft not able to pass underneath it.

(2) The signal for opening the draw shall be four blasts of a whistle or horn.

If,

(3) Upon receiving the prescribed signal from an approaching vessel or watercraft, the draw tender, in case the draw can be opened immediately, shall promptly reply by an answering signal of three blasts of a whistle or horn. for any reason, the draw cannot be opened promptly when the prescribed signal is given, the draw tender shall so indicate by sounding five blasts of a whistle or horn, repeated at intervals until answered in like manner by the approaching vessel.

(4) There shall be provided, and kept in good legible condition, two board gages, painted white, with black figures not less than 6 inches high, to indicate

the headroom clearance under the lower chords of the closed drawspan at all stages of the tide. The gages shall be so placed on the piers at the ends of the drawspan, that they will be plainly visible to the operator of a vessel approaching the bridge either upstream or downstream.

(5) Pedestrians and vehicles shall not be stopped on the bridge for the purpose of delaying its opening, nor shall watercraft or vessels be so manipulated as to hinder or delay the operation of a drawspan, but all passage over, through, or under a drawbridge shall be prompt, to prevent delay to either land or water traffic.

(b) Bridge (combined highway and railroad) between Portsmouth, N. H., and Kittery, Maine. (1) The corporation or persons owning or controlling this drawbridge shall provide the same with the necessary tenders and the proper mechanical appliances for the safe, prompt, and efficient opening of the draw for the passage of vessels.

(2) If the weather conditions are good and sound signals can be heard when a vessel approaches this drawbridge and desires to pass through the draw, two long and two short distinct blasts of a whistle, horn, or megaphone shall be sounded from the vessel when within reasonable hearing distance of the bridge.

(i) When the draw of the bridge can be opened immediately, the draw tender shall reply by two long distinct blasts of a whistle, siren, horn, or megaphone or by two loud and distinct strokes of a bell.

(ii) When the draw of the bridge cannot be opened immediately or when the bridge is open and is to be closed immediately, the draw tender shall reply by five short distinct blasts of a whistle, siren, horn, or megaphone or by five loud and distinct strokes of a bell, repeated at intervals until answered in like manner from the approaching vessel.

(3) When weather conditions prevent hearing the sound signals when a vessel approaches this drawbridge and desires to pass through the draw, signals shall be made from the vessel by swinging in circles at arm's length, a lighted lantern at night and a flag by day.

(i) When the draw of the bridge can be opened immediately, the draw tender shall reply by raising and lowering in a vertical plane a number of times, a lighted lantern at night and a flag by day.

(ii) When the draw of the bridge cannot be opened immediately or when the bridge is to be closed immediately, the draw tender shall reply by swinging to and fro horizontally a number of times a lighted lantern at night and a flag by day.

(4) When two or more vessels are approaching this bridge at nearly the same time from the same or opposite directions with the draw opened or closed, each of these vessels shall signal independently for the opening of the draw, and the draw tender shall reply as prescribed and in turn to the signal of each vessel.

(5) The draw shall be opened with the least possible delay at all hours upon receiving the prescribed signal for the passage of any vessel or vessels or other watercraft not able to pass underneath it: Provided, That the drawspan shall not be opened when a train is approaching so closely that it cannot safely be stopped before reaching the railroad signal block in which the drawspan of the bridge is located.

(6) When the draw tender is about to close the draw, he shall sound one distinct blast of a whistle, siren, horn or megaphone, or one loud and distinct stroke of a bell.

(7) Trains and vehicles shall not be stopped or pedestrians loiter on this drawbridge for the purpose of delaying its opening, nor shall watercraft or vessels be so manipulated as to hinder or delay the operation of the drawspan, but all passage over, through, or under it shall be prompt, to prevent delay to either land or water traffic.

(8) The owners of this bridge shall provide and keep in good legible condition two suitable gages approved by the Commandant, to indicate the headroom clearance under the lower chords of the closed drawspan at all stages of the tide. These gages shall be so placed on the piers at the ends of the drawspan that they will be plainly visible to the operator of a vessel approaching the bridge either upstream or downstream. § 117.40 Bellamy River, N.H.; bridge (highway) between Cedar Point and Dover Point, N.H.

(a) The owner of or agency controlling the bridge will not be required to keep draw tenders in constant attendance at the bridge.