← All structures
Lock or dam · from the US Coast Guard investigation record
LOCK AND DAM 7
The vessels recorded in 14 Coast Guard casualty investigations naming this lock or dam, 2010–2024: 27 vessel mentions, 25 hulls with a page on Maury.
Every investigation naming this structure
| Vessel, with role as recorded | Date | Classification | Structure status, as recorded | Property damage recorded | People |
|---|---|---|---|---|---|
| ART 35917 Involved in a Marine Casualty ROBERTA TABOR Involved in a Marine Casualty |
2024-06-05 | Routine | Undamaged - Operational | $15,000 | none recorded |
| ACL 01548 Involved in a Marine Casualty TOM BEHRINGER Involved in a Marine Casualty |
2023-04-09 | Routine | Undamaged - Operational | $46,000 | none recorded |
| CAPT. PHILLIP BOX Involved in a Marine Casualty A. A. BIRCH III Transiting Vicinity of Primary Subject CLIFFORD H GALLEY Transiting Vicinity of Primary Subject MRS P Transiting Vicinity of Primary Subject |
2022-04-13 | Routine | Undamaged - Operational | — | none recorded |
| DARIN ADRIAN Involved in a Marine Casualty | 2019-11-11 | Routine | Undamaged - Operational | — | none recorded |
| MARY K CAVARRA Involved in a Marine Casualty | 2019-07-11 | Routine | Undamaged - Operational | $1,000 | none recorded |
| M/V STEPHEN L. COLBY Subject to Marine Inspection | 2017-06-03 | Routine | Undamaged - Operational | — | none recorded |
| MICHAEL POINDEXTER Subject to Marine Inspection | 2016-09-27 | Routine | Undamaged - Operational | — | none recorded |
| POPCO Involved in a Marine Casualty MEGAN MCB Sighted in Area |
2016-09-03 | Routine | Undamaged - Operational | — | none recorded |
| MEGAN MCB Involved in a Marine Casualty BILL BERRY Transiting Vicinity of Primary Subject |
2013-07-03 | Major Marine Casualty · serious marine incident | Undamaged - Shut Down | — | 1 dead, 0 injured, 0 missing |
| CLYDE BUTCHER Involved in a Marine Casualty VL 81281 Involved in a Marine Casualty ACBL 6048 Involved in a Marine Investigation (non-casualty) |
2011-07-18 | Routine | Damaged and Not Repaired - Operational | $2,500 | none recorded |
| CH 0958 Involved in a Marine Casualty JAMES FARIS Involved in a Marine Casualty |
2011-07-17 | Routine | Undamaged - Operational | — | none recorded |
| KEVIN MICHAEL Involved in a Marine Casualty SCF 26002 Involved in a Marine Casualty |
2010-11-12 | Routine | Damaged and Not Repaired - Operational | $5,000 | none recorded |
| AMERICAN BEAUTY Involved in a Marine Casualty AT 658 Involved in a Marine Casualty |
2010-07-29 | Routine | Undamaged - Operational | — | none recorded |
| AT 695B Involved in a Marine Casualty COOPERATIVE MARINER Involved in a Marine Casualty |
2010-06-26 | Routine | Undamaged - Operational | — | none recorded |
A vessel’s role is the Coast Guard’s word for how it was involved, and it is shown exactly as recorded: a vessel “sighted near” an incident is not a striking vessel, and involvement is not fault. Where an investigation records anyone dead, injured or missing, only the
structured fields are shown and the narrative is withheld. Property damage is the total the investigation recorded,
in dollars of the year, never adjusted. Vessel names link to the hull’s page where Maury publishes one;
an unlinked name is a hull Maury holds and does not publish, or one it does not hold.
Investigations recorded, by year
| Year | Investigations recorded |
|---|---|
| 2010 | 3 |
| 2011 | 2 |
| 2013 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2019 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
A count of investigation records that name this structure. It is not a rate: the
Coast Guard’s record of incidents is denser in some years and districts than others
(coverage), and the record for 1991 onward
is the one Maury holds.
Identity
Recorded as
LOCK AND DAM 7
Also recorded as
L&D 7 (7)
Type
Lock or dam
Coast Guard unit
USCG Heartland District (CGD-H) · Marine Safety Detachment St. Paul
Maury structure id
str-111b8da729
One recorded name under one Coast Guard unit. A grouping by name may include more than one structure.
Federal bridge record
Not matched to a federal bridge record. locks are not in the National Bridge Inventory; no federal structure record is loaded for them. Absence of a
match is a fact about the matching rule, not about the structure.
What this page is not
A fact about a structure, not a judgement about it or about anyone who owns it. Maury publishes no
score, rating or ranking for a structure, and no count or comparison for a bridge owner. A structure with no
page has no recorded involvement in the ranges Maury holds; that is not “never struck”.
Source: US Coast Guard Incident Investigation Reports through 13 September 2026; National Bridge
Inventory where matched. Coverage and known gaps.