Document ID: USCG-2012-0525-0001
Agency: uscg
Document Type: Rule
Title: Drawbridge Operations: Lake Washington, Seattle, WA (Federal Register Publication) (Notice of temporary deviation from regulations.)
Posted Date: 2012-06-21T04:00Z

[Federal Register Volume 77, Number 120 (Thursday, June 21, 2012)]
[Rules and Regulations]
[Page 37317]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-15191]

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DEPARTMENT OF HOMELAND SECURITY

Coast Guard

33 CFR Part 117

[Docket No. USCG-2012-0525]

Drawbridge Operation Regulation; Lake Washington, Seattle, WA

AGENCY: Coast Guard, DHS.

ACTION: Notice of temporary deviation from regulations.

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SUMMARY: The Coast Guard has issued a temporary deviation from the 
operating schedule that governs the State Route 520 (SR 520) Bridge 
across Lake Washington at Seattle, WA. This deviation is necessary to 
accommodate the running of the Seafair Rock and Roll Marathon. This 
deviation allows the bridge to remain in the closed position to allow 
safe movement of event participants.

DATES: This deviation is effective from 10 a.m. on June 23, 2012 
through 4 p.m. June 23, 2012.

ADDRESSES: Documents mentioned in this preamble as being available in 
the docket are part of docket USCG-2012-0525 and are available online 
by going to http://www.regulations.gov, inserting USCG-2012-0525 in the 
``Keyword'' box and then clicking ``Search''. They are also available 
for inspection or copying at the Docket Management Facility (M-30), 
U.S. Department of Transportation, West Building Ground Floor, Room 
W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590, between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

FOR FURTHER INFORMATION CONTACT: If you have questions on this rule, 
call or email the Bridge Administrator, Coast Guard Thirteenth 
District; telephone 206-220-7282 email randall.d.overton@uscg.mil. If 
you have questions on viewing the docket, call Renee V. Wright, Program 
Manager, Docket Operations, telephone 202-366-9826.

SUPPLEMENTARY INFORMATION: The Washington State Department of 
Transportation has requested that the draw span of the SR 520 Bridge 
remain closed to vessel traffic to facilitate safe passage of 
participants of the Seafair Rock and Roll Marathon. The Rock and Roll 
Marathon is the largest distance running event in the Pacific 
Northwest. This event includes over 26,000 participants running a 
marathon (26.2 miles) or half marathon (13.1 miles). The race course 
passes over the SR 520 Lake Washington Bridge. The SR 520 Bridge 
provides three navigational openings for vessel passage, the movable 
floating span, subject to this closure, and two fixed navigational 
openings; one on the east end of the bridge and one on the west end. 
The fixed navigational opening on the east end of the bridge provides a 
horizontal clearance of 207 feet and a vertical clearance of 57 feet. 
The opening on the west end of the bridge provides a horizontal 
clearance of 206 feet and a vertical clearance of 44 feet. Vessels that 
are able to safely pass through the fixed navigational openings are 
allowed to do so during this closure period. Under normal conditions, 
during this time frame, the bridge operates in accordance with 33 CFR 
117.1049(a) which states the bridge shall open on signal if at least 
two hours notice is given. This deviation period is from 10 a.m. on 
June 23, 2012 through 4 p.m. June 23, 2012. The deviation allows the 
floating draw span of the SR 520 Lake Washington Bridge to remain in 
the closed position and need not open for maritime traffic from 10 a.m. 
through 4 p.m. on June 23, 2012. The bridge shall operate in accordance 
to 33 CFR Sec.  117.1049(a) at all other times. Waterway usage on the 
Lake Washington Ship ranges from commercial tug and barge to small 
pleasure craft. Mariners will be notified and kept informed of the 
bridge's operational status via the Coast Guard Notice to Mariners 
publication and Broadcast Notice to Mariners as appropriate. The draw 
span will be required to open, if needed, for vessels engaged in 
emergency response operations during this closure period.
    In accordance with 33 CFR 117.35(e), the drawbridge must return to 
its regular operating schedule immediately at the end of the designated 
time period. This deviation from the operating regulations is 
authorized under 33 CFR 117.35.

    Dated: June 8, 2012.
Randall D. Overton,
Bridge Administrator.
[FR Doc. 2012-15191 Filed 6-20-12; 8:45 am]
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