← All structures
Bridge · from the US Coast Guard investigation record
US 21, HARBOR RIVER
The vessels recorded in 1 Coast Guard casualty investigation naming this bridge, 2021: 1 vessel mention, 1 hull 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 |
|---|---|---|---|---|---|
| LIL CHIT Involved in a Marine Casualty | 2021-04-20 | 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 |
|---|---|
| 2021 | 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
US 21, HARBOR RIVER
Also recorded as
—
Type
Bridge
Coast Guard unit
USCG Southeast District (CGD-SE) ยท Sector Charleston
Maury structure id
str-c77fd95e5d
One recorded name under one Coast Guard unit. A grouping by name may include more than one structure.
Federal bridge record
NBI structure number000000000010538 (SC)
Owner, as classed by FHWAState highway agency
Facility carriedUS 21
Feature crossedHARBOR RIVER
Location, as recorded12.5 MI SE OF BEAURFORT
Year built2021
Navigation vertical clearance19.8 m (65.0 ft)
Navigation horizontal clearance36.6 m (120.1 ft)
Minimum navigation vertical clearancenot recorded in the inventory
National Bridge Inventory 2024, Federal Highway Administration, as served.
Match: 2 navigation-controlled NBI crossings within 2 km; the nearest is 0.06 km from the recorded position and the next is more than three times as far. Owner is FHWA’s owner class, not a name.
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.