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Final Rule

Drawbridge Operation Regulation; Three Mile Slough, Near Rio Vista, CA

In Plain English

What is this Federal Register notice?

This is a final rule published in the Federal Register by Homeland Security Department, Coast Guard. Final rules have completed the public comment process and establish legally binding requirements.

Is this rule final?

Yes. This rule has been finalized. It has completed the notice-and-comment process required under the Administrative Procedure Act.

Who does this apply to?

Consult the full text of this document for specific applicability provisions. The affected parties depend on the regulatory scope defined within.

When does it take effect?

This document has been effective since July 2, 2024.

Why it matters: This final rule amends regulations in 33 CFR Part 117.

📋 Related Rulemaking

This final rule likely has a preceding Notice of Proposed Rulemaking (NPRM), but we haven't linked it yet.

Our system will automatically fetch and link related NPRMs as they're discovered.

Regulatory History — 64 documents in this rulemaking

  1. Jan 24, 2024 2024-01359 Final Rule
    Drawbridge Operation Regulation; Housatonic River, Stratford, CT
  2. Jan 24, 2024 2024-01358 Final Rule
    Drawbridge Operation Regulation; Saugatuck River, Westport, CT
  3. Jan 24, 2024 2024-01360 Final Rule
    Drawbridge Operation Regulation; Mianus River, Greenwich, CT
  4. Feb 2, 2024 2024-02084 Final Rule
    Drawbridge Operation Regulation; Atlantic Intracoastal Waterway, Jupiter, FL
  5. Feb 5, 2024 2024-02187 Final Rule
    Drawbridge Operation Regulation; Okeechobee Waterway, Stuart, FL
  6. Feb 21, 2024 2024-03455 Proposed Rule
    Drawbridge Operation Regulation; Reynolds Channel, Atlantic Beach, NY
  7. Feb 23, 2024 2024-03462 Final Rule
    Drawbridge Operation Regulation; Sloop Channel, Nassau County, NY
  8. Feb 23, 2024 2024-03463 Final Rule
    Drawbridge Operation Regulation; Long Creek, Nassau County, NY
  9. Feb 29, 2024 2024-04274 Final Rule
    Drawbridge Operation Regulation; Ashtabula River, Ashtabula, OH
  10. Feb 29, 2024 2024-04273 Final Rule
    Drawbridge Operation Regulation; River Rouge, Detroit, MI; Correction
  11. Mar 8, 2024 2024-05007 Final Rule
    Drawbridge Operation Regulation; Old River, Between Victoria Island and Byron...
  12. Mar 8, 2024 2024-04952 Final Rule
    Drawbridge Operation Regulation; Portage River, Port Clinton, OH
  13. Apr 8, 2024 2024-07366 Proposed Rule
    Drawbridge Operation Regulation; Milwaukee, Menomonee, and Kinnikinnic Rivers...
  14. Apr 8, 2024 2024-07368 Final Rule
    Drawbridge Operation Regulation; Black River, Lorain, OH
  15. Apr 8, 2024 2024-07367 Final Rule
    Drawbridge Operation Regulation; Maumee River, Toledo, OH
  16. Apr 10, 2024 2024-07578 Proposed Rule
    Drawbridge Operation Regulation; Umpqua River, Reedsport, OR
  17. May 7, 2024 2024-09922 Final Rule
    Drawbridge Operation Regulation; Reynolds Channel, Atlantic Beach, NY
  18. May 20, 2024 2024-10980 Proposed Rule
    Drawbridge Operation Regulation; Atlantic Intracoastal Waterway; West Palm Be...
  19. May 28, 2024 2024-11608 Final Rule
    Drawbridge Operation Regulation; Cuyahoga River, Cleveland, OH
  20. May 31, 2024 2024-11837 Final Rule
    Drawbridge Operation Regulation; Sloop Channel, Nassau County, NY
  21. Jun 21, 2024 2024-13472 Proposed Rule
    Drawbridge Operation Regulation; Townsend Gut, Southport, ME
  22. Jul 2, 2024 2024-14545 Final Rule
    Drawbridge Operation Regulation; Three Mile Slough, Near Rio Vista, CA
  23. Jul 15, 2024 2024-15233 Proposed Rule
    Drawbridge Operation Regulation; Miami River, North Fork, Miami, FL
  24. Jul 31, 2024 2024-16824 Proposed Rule
    Drawbridge Operation Regulation; Rancocas Creek, Burlington County, NJ
  25. Aug 7, 2024 2024-17452 Final Rule
    Drawbridge Operation Regulation; Okeechobee Waterway, Stuart, FL
  26. Sep 3, 2024 2024-19697 Final Rule
    Drawbridge Operation Regulation; Okeechobee Waterway, Stuart, FL; Correction
  27. Sep 26, 2024 2024-21971 Final Rule
    Drawbridge Operation Regulation; Milwaukee, Menomonee, and Kinnikinnic Rivers...
  28. Oct 3, 2024 2024-22822 Proposed Rule
    Drawbridge Operation Regulation; Hackensack River, Little Snake Hill, NJ
  29. Oct 15, 2024 2024-23769 Final Rule
    Drawbridge Operation Regulation; Wappinger Creek, New Hamburg, New York
  30. Oct 16, 2024 2024-23738 Final Rule
    Drawbridge Operation Regulation; Townsend Gut, Southport, ME
  31. Oct 25, 2024 2024-24711 Final Rule
    Drawbridge Operation Regulation; Atlantic Intracoastal Waterway, Jupiter, FL
  32. Oct 25, 2024 2024-24847 Proposed Rule
    Drawbridge Operation Regulation; Atlantic Intracoastal Waterway, Beaufort, SC
  33. Oct 30, 2024 2024-24970 Final Rule
    Drawbridge Operation Regulation; Dutch Kills, Queens County, NY
  34. Nov 4, 2024 2024-25603 Final Rule
    Drawbridge Operation Regulation; Sacramento River, Rio Vista, CA
  35. Nov 6, 2024 2024-25660 Proposed Rule
    Drawbridge Operation Regulation; Atlantic Intracoastal Waterway; West Palm Be...
  36. Jan 8, 2025 2024-31328 Proposed Rule
    Drawbridge Operation Regulation; Gulf Intracoastal Waterway, Osprey, FL
  37. Jan 17, 2025 2025-00573 Final Rule
    Drawbridge Operation Regulation; Umpqua River, Reedsport, OR
  38. Feb 7, 2025 2025-02368 Final Rule
    Drawbridge Operation Regulation; Okeechobee Waterway, Stuart, FL
  39. Mar 24, 2025 2025-04917 Final Rule
    Drawbridge Operation Regulation; Sandusky Bay, Sandusky, OH
  40. Mar 25, 2025 2025-04918 Proposed Rule
    Drawbridge Operation Regulation; Okeechobee Waterway, Stuart, FL
  41. Mar 26, 2025 2025-05091 Final Rule
    Drawbridge Operation Regulation; Hackensack River, Little Snake Hill, NJ
  42. Apr 4, 2025 2025-05748 Final Rule
    Drawbridge Operation Regulation; Miami River, North Fork, Miami, FL
  43. Apr 4, 2025 2025-05778 Final Rule
    Drawbridge Operation Regulation; Gulf Intracoastal Waterway, Osprey, FL
  44. Apr 7, 2025 2025-05875 Final Rule
    Drawbridge Operation Regulation; Honker Cut, Between Empire Tract and King Is...
  45. Apr 17, 2025 2025-06394 Final Rule
    Drawbridge Operation Regulation; Passaic River, Harrison, New Jersey
  46. Apr 24, 2025 2025-07058 Final Rule
    Drawbridge Operation Regulation; Atlantic Intracoastal Waterway; West Palm Be...
  47. May 19, 2025 2025-08888 Final Rule
    Drawbridge Operation Regulation; Okeechobee Waterway, Stuart, FL; Extension o...
  48. May 20, 2025 2025-08990 Final Rule
    Drawbridge Operation Regulation; Atlantic Intracoastal Waterway, Beaufort, SC
  49. Jun 9, 2025 2025-10418 Proposed Rule
    Drawbridge Operation Regulation; Inside Thorofare, Ventnor City, New Jersey
  50. Jun 23, 2025 2025-11495 Final Rule
    Drawbridge Operation Regulation; East River, Green Bay, WI
  51. Jul 24, 2025 2025-13882 Proposed Rule
    Drawbridge Operation Regulation; Atlantic Intracoastal Waterway, Fort Lauderd...
  52. Aug 1, 2025 2025-14593 Final Rule
    Drawbridge Operation Regulation; Southern Branch of the Elizabeth River, Ches...
  53. Sep 9, 2025 2025-17302 Proposed Rule
    Drawbridge Operation Regulation; Atlantic Intracoastal Waterway, North Myrtle...
  54. Sep 16, 2025 2025-17888 Final Rule
    Drawbridge Operation Regulation; Okeechobee Waterway, Stuart, FL
  55. Oct 1, 2025 2025-19114 Final Rule
    Drawbridge Operation Regulation; Canaveral Barge Canal, Port Canaveral, FL
  56. Nov 18, 2025 2025-20164 Proposed Rule
    Drawbridge Operation Regulation; Newark Bay, Between the City of Newark and C...
  57. Nov 24, 2025 2025-20726 Final Rule
    Drawbridge Operation Regulation; Bass River, Beverly, MA
  58. Nov 26, 2025 2025-21198 Proposed Rule
    Drawbridge Operation Regulation; Wishkah River, Aberdeen, WA
  59. Dec 1, 2025 2025-21670 Proposed Rule
    Drawbridge Operation Regulation; Passaic River, Between the City of Newark an...
  60. Jan 20, 2026 2026-00931 Final Rule
    Drawbridge Operation Regulation; Atlantic Intracoastal Waterway, North Myrtle...
  61. Jan 20, 2026 2026-00932 Final Rule
    Drawbridge Operation Regulation; Atlantic Intracoastal Waterway, Fort Lauderd...
  62. Jan 26, 2026 2026-01398 Final Rule
    Drawbridge Operation Regulation; Inside Thorofare, Ventnor City, New Jersey
  63. Jan 26, 2026 2026-01400 Final Rule
    Drawbridge Operation Regulation; Technical Amendment; Removal of Obsolete Dra...
  64. Feb 3, 2026 2026-02175 Final Rule
    Drawbridge Operation Regulation; New Rochelle Harbor, Westchester County, NY

Document Details

Document Number2024-14545
TypeFinal Rule
PublishedJul 2, 2024
Effective DateJul 2, 2024
RIN1625-AA09
Docket IDDocket No. USCG-2024-0463
Text FetchedYes

Agencies & CFR References

CFR References:

Linked CFR Parts

PartNameAgency
No linked CFR parts

Paired Documents

TypeProposedFinalMethodConf
No paired documents

Related Documents (by RIN/Docket)

Doc #TypeTitlePublished
2026-02175 Final Rule Drawbridge Operation Regulation; New Roc... Feb 3, 2026
2026-01398 Final Rule Drawbridge Operation Regulation; Inside ... Jan 26, 2026
2026-01400 Final Rule Drawbridge Operation Regulation; Technic... Jan 26, 2026
2026-00931 Final Rule Drawbridge Operation Regulation; Atlanti... Jan 20, 2026
2026-00932 Final Rule Drawbridge Operation Regulation; Atlanti... Jan 20, 2026
2025-21670 Proposed Rule Drawbridge Operation Regulation; Passaic... Dec 1, 2025
2025-21198 Proposed Rule Drawbridge Operation Regulation; Wishkah... Nov 26, 2025
2025-20726 Final Rule Drawbridge Operation Regulation; Bass Ri... Nov 24, 2025
2025-20164 Proposed Rule Drawbridge Operation Regulation; Newark ... Nov 18, 2025
2025-19114 Final Rule Drawbridge Operation Regulation; Canaver... Oct 1, 2025

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Full Document Text (1,879 words · ~10 min read)

Text Preserved
<RULE> DEPARTMENT OF HOMELAND SECURITY <SUBAGY>Coast Guard</SUBAGY> <CFR>33 CFR Part 117</CFR> <DEPDOC>[Docket No. USCG-2024-0463]</DEPDOC> <RIN>RIN 1625-AA09</RIN> <SUBJECT>Drawbridge Operation Regulation; Three Mile Slough, Near Rio Vista, CA</SUBJECT> <HD SOURCE="HED">AGENCY:</HD> Coast Guard, DHS. <HD SOURCE="HED">ACTION:</HD> Temporary interim rule and request for comments. <SUM> <HD SOURCE="HED">SUMMARY:</HD> The Coast Guard is temporarily modifying the operating schedule that governs the draw of the California Department of Transportation Route 160 bridge, across Three Mile Slough, mile 0.1 near Rio Vista, CA. This action is necessary to allow the bridge owner to complete electrical and mechanical rehabilitation of the bridge. </SUM> <EFFDATE> <HD SOURCE="HED">DATES:</HD> This temporary interim rule is effective from July 2, 2024 through 7 p.m. on August 30, 2024. Comments and related material must reach the Coast Guard on or before August 1, 2024. </EFFDATE> <HD SOURCE="HED">ADDRESSES:</HD> To view documents mentioned in this preamble as being available in the docket, go to <E T="03">https://www.regulations.gov.</E> Type the docket number (USCG-2024-0463) in the “SEARCH” box and click “SEARCH.” In the Document Type column, select “Supporting & Related Material”. <FURINF> <HD SOURCE="HED">FOR FURTHER INFORMATION CONTACT:</HD> If you have questions on this temporary interim rule, call or email Carl Hausner, Chief, Bridge Section, Eleventh Coast Guard District; telephone 510-437-3516, email <E T="03">Carl.T.Hausner@uscg.mil.</E> </FURINF> <SUPLINF> <HD SOURCE="HED">SUPPLEMENTARY INFORMATION:</HD> <HD SOURCE="HD1">I. Table of Abbreviations </HD> <EXTRACT> CFR Code of Federal Regulations Caltrans California Department of Transportation DHS Department of Homeland Security FR Federal Register NPRM Notice of proposed rulemaking Pub. L. Public Law § Section U.S.C. United States Code </EXTRACT> <HD SOURCE="HD1">II. Background Information and Regulatory History</HD> The Coast Guard is issuing this temporary interim rule without prior notice and opportunity to comment pursuant to authority under section 4(a) of the Administrative Procedure Act (APA) (5 U.S.C. 553(b)). This provision authorizes an agency to issue a rule without prior notice and opportunity to comment when the agency for good cause finds that those procedures are “impracticable, unnecessary, or contrary to the public interest.” Under 5 U.S.C. 553(b), the Coast Guard finds that good cause exists for not publishing a notice of proposed rulemaking (NPRM) with respect to this rule because it is impracticable. This bridge is non-operational and will be non-operational until rehabilitation work can be completed. On December 14, 2023, the Coast Guard issued a General Deviation which allowed the bridge owner, Caltrans, to deviate from the current operating schedule in 33 CFR 117.5 in order to conduct major mechanical and electrical rehabilitation of the bridge. Due to delays caused by weather, design changes, and supply chain issues the project will run past the end date of the General Deviation on June 30, 2024. As such, the bridge cannot be brought back to operating condition until the work is complete, which remains dependent on continuing good weather and the resolution of supply chain issues. Therefore, there is insufficient time to provide a reasonable comment period and then consider those comments before issuing the modification. Under 5 U.S.C. 553(d)(3), the Coast Guard finds that good cause exists for making it effective in less than 30 days after publication in the <E T="04">Federal Register</E> . For reasons presented above, delaying the effective date of this rule would be impracticable and contrary to the public interest due to the fact that the bridge is currently inoperable and will not be back into operation until the electrical and mechanical rehabilitation work can be completed. We are soliciting comments on this rulemaking. If the Coast Guard determines that changes to the temporary interim rule are necessary, we will publish a temporary final rule or other appropriate document. <HD SOURCE="HD1">III. Legal Authority and Need for Rule</HD> The Coast Guard is issuing this temporary interim rule under authority in 33 U.S.C. 499. The Coast Guard is modifying the operating schedule that governs the draw of the California Department of Transportation Route 160 bridge, across Three Mile Slough, mile 0.1 near Rio Vista, CA. The Route 160 bridge has a vertical clearance in the closed position of 12.4 feet at mean high water, and 107.4 feet of vertical clearance when in the fully opened-to-navigation position. The existing drawbridge regulation, 33 CFR 117.5, states “Except as otherwise authorized or required by this part, drawbridges must open promptly and fully for the passage of vessels when a request or signal to open is given in accordance with this subpart.” Caltrans, the bridge owner, has requested additional time to complete the bridge rehabilitation. <HD SOURCE="HD1">IV. Discussion of the Temporary Interim Rule</HD> The Coast Guard is issuing this rule, which permits a temporary deviation from the operating schedule that governs the draw of the California Department of Transportation Route 160 bridge, across Three Mile Slough, mile 0.1 near Rio Vista, CA. This rule allows the bridge to be secured in the closed-to-navigation position through 7 p.m. on August 30, 2024. As part of the bridge rehabilitation, Caltrans has removed and is replacing all the electrical and key mechanical components that control the draw span's operation. On May 21, 2024, Caltrans informed the Coast Guard their contractor had parts and material on backorder due to supply chain issues, and the original design for the rehabilitation work needed revisions. In addition, Caltrans informed the Coast Guard that delays due to weather extended the completion date of the project. The supply chain issue, the redesign, and an active storm season have delayed the completion of the bridge rehabilitation. Currently, the draw span remains inoperable until the work is completed. The anticipated completion date for the rehabilitation is August 30, 2024. <HD SOURCE="HD1">V. Regulatory Analyses</HD> We developed this temporary interim rule after considering numerous statutes and Executive Orders related to rulemaking. Below we summarize our analyses based on a number of these statutes and Executive Orders. <HD SOURCE="HD2">A. Regulatory Planning and Review</HD> Executive Orders 12866 and 13563 direct agencies to assess the costs and benefits of available regulatory alternatives and, if regulation is necessary, to select regulatory approaches that maximize net benefits. This rule has not been designated a “significant regulatory action,” under Executive Order 12866. Accordingly, it has not been reviewed by the Office of Management and Budget (OMB). This regulatory action determination is based on the fact that even though vessels, which require this draw span to open may be impacted by this action, vessels still can take an alternate route to reach either side of the bridge. Furthermore, the draw span of the bridge, as of date of the publication of this rule, is not operational and cannot resume operations until rehabilitation work is complete. <HD SOURCE="HD2">B. Impact on Small Entities</HD> The Regulatory Flexibility Act of 1980 (RFA), 5 U.S.C. 601-612, as amended, requires federal agencies to consider the potential impact of regulations on small entities during rulemaking. The term “small entities” comprises small businesses, not-for-profit organizations that are independently owned and operated and are not dominant in their fields, and governmental jurisdictions with populations of less than 50,000. The Coast Guard certifies under 5 U.S.C. 605(b) that this rule will not have a significant economic impact on a substantial number of small entities. While some owners or operators of vessels intending to transit the bridge may be small entities, for the reasons stated in section V.A above, this rule will not have a significant economic impact on any vessel owner or operator. Under section 213(a) of the Small Business Regulatory Enforcement Fairness Act of 1996 (Pub. L. 104-121), we want to assist small entities in understanding this rule. If the rule would affect your small business, organization, or governmental jurisdiction and you have questions concerning its provisions or options for compliance, please contact the person listed in the <E T="02">FOR FURTHER INFORMATION CONTACT</E> section. Small businesses may send comments on the actions of Federal employees who enforce, or otherwise determine compliance with, Federal regulations to the Small Business and Agriculture Regulatory Enforcement Ombudsman and the Regional Small Business Regulatory Fairness Boards. The Ombudsman evaluates these actions annually and rates each agency's responsiveness to small business. If you wish to comment on actions by employees of the Coast Guard, call 1-888-REG-FAIR (1-888-734-3247). The Coast Guard will not retaliate against small entities that question or complain about this rule or any policy or action of the Coast Guard. <HD SOURCE="HD2">C. Collection of Information</HD> This rule calls for no new collection of information under the Paperwork Reduction Act of 1995 (44 U.S.C. 3501-3520). <HD SOURCE="HD2">D. Federalism and Indian Tribal Government</HD> A rule has implications for federalism under Executive Order 13132, Federalism, if it has a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. We have analyzed this rule under that Order and have determined that it is consistent with the fundamental federalism ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Preview showing 10k of 13k characters. Full document text is stored and available for version comparison. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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