BackControlling depth

How much water is there?

What the Army Corps last measured in each reach, how long ago they measured it, and what that leaves under your keel. Shown at the datum — add the tide yourself.

Worked out for a typical 26 ft centre console — we do not know yours yet. Add your boat and these become your numbers.Add your boat
Why this is not on your chartplotter

Electronic charts do carry controlling depths — but the ones for this coast are years behind. NOAA’s own chart service has no depth at all for Lockwoods Folly or Masonboro, and the figure it carries for Carolina Beach was surveyed in December 2021. The Corps re-surveyed several of these reaches this month. We read their reports directly, which is unglamorous work in a stretch of coast too small for a national app to bother with.

Planning aid only — not for navigation

Every figure below is the shoalest sounding USACE found across an entire reach on a single day. It cannot tell you where in the channel you are, and the bottom moves between surveys. Each number is shown as a band, and the band widens as the survey ages, because that is the honest shape of this data.

55
reaches with a depth
49
below their authorised depth
2
channels with no report at all

Sorted worst-first for a 2 ft draft — a stand-in, not your boat. Computed at mean lower low water, with no tide added.

Weather since these surveys

Since 2026-09-15 the water at Wrightsville Beach has run up to 2.2 ft above and 0.3 ft below prediction, with 200 hours more than a foot off. That is weather that moves sand, and any survey older than it describes the channel as it was before. This looks at the last 31 days only — NOAA serves observed water level 31 days at a time, and this survey is older than that. Weather before 2026-09-15 is unchecked, not clear.

Measured as observed minus predicted water level at one mid-corridor NOAA gauge. It is a proxy for whether the water has been disturbed, not proof that any particular reach has or has not changed.

Tangent B - St. 200+00 - 353+39.05

Bogue Sound·90 ft wide·6.7 mi
Doubtful
1ft controlling depth
Surveyed 28 Apr 2026 — 171 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
Not enough water — about 1 ft short even at beston a survey about 6 months old
0 ft2 ft draft · 12 ft authorised

Even assuming the survey still holds exactly, 1 ft of channel plus no tide does not float a 2 ft draft.

band = 1 surveyed − 2 draft, less up to 5 assumed shoaling


USACE record
cell 1/100authorised 12 ft11 ft shortreach IC_01_TB1_2

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 1/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 1 - Tangent B

IC_01_TB1_20260428_CS — original survey ZIP

Channel in Back Sound St. 80+00 - 157+68.9

Cape Lookout·100 ft wide·3 mi
Aging
1ft controlling depth
Surveyed 28 Jul 2026 — 80 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
Not enough water — about 1 ft short even at beston a survey 80 days old
0 ft2 ft draft · 7 ft authorised

Even assuming the survey still holds exactly, 1 ft of channel plus no tide does not float a 2 ft draft.

band = 1 surveyed − 2 draft, less up to 4 assumed shoaling


USACE record
cell 1/100authorised 7 ft6 ft shortreach SH_12_CBS_1

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 1/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Channel in Back Sound St. 80+00 - 157+68.9

SH_12_CBS_20260728_BD — original survey ZIP

AIWW CFR to LR Tangent 11 Widner

Lockwoods Folly·400 ft wide·0.6 mi
Aging
1ft controlling depth
Surveyed 3 Aug 2026 — 74 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
Not enough water — about 1 ft short even at beston a survey 74 days old
0 ft2 ft draft · 12 ft authorised

Even assuming the survey still holds exactly, 1 ft of channel plus no tide does not float a 2 ft draft.

band = 1 surveyed − 2 draft, less up to 4 assumed shoaling


USACE record
cell 1/100authorised 12 ft11 ft shortreach IN_10_LFI_3

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 1/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - Lockwoods Folly Inlet Crossing Widner

IN_10_LFI_20260803_CS — original survey ZIP

Carolina Beach Inlet

Carolina Beach·150 ft wide·1.3 mi
Aging
1ft controlling depth
Surveyed 11 Aug 2026 — 66 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
Not enough water — about 1 ft short even at beston a survey 66 days old
0 ft2 ft draft · 8 ft authorised

Even assuming the survey still holds exactly, 1 ft of channel plus no tide does not float a 2 ft draft.

band = 1 surveyed − 2 draft, less up to 4 assumed shoaling


USACE record
cell 1/6authorised 8 ft7 ft shortreach IN_09_CBI_1

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 1/6 — the depth, then how much of the reach their survey actually covered.

Only 6% of this reach was surveyed. The shoalest thing they found was the figure above — the 94% nobody measured could be worse, not better.

Coastal Inlets - Carolina Beach Inlet Crossing Widner

IN_09_CBI_20260811_AD — original survey ZIP

AIWW CFR to LR Tangent 11 Widner

Lockwoods Folly·50 ft wide·0.6 mi
Aging
2ft controlling depth
Surveyed 3 Aug 2026 — 74 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
Not enough water — about 0 ft short even at beston a survey 74 days old
0 ft2 ft draft · 12 ft authorised

Even assuming the survey still holds exactly, 2 ft of channel plus no tide does not float a 2 ft draft.

band = 2 surveyed − 2 draft, less up to 4 assumed shoaling


USACE record
cell 2/100authorised 12 ft10 ft shortreach IN_10_LFI_4

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 2/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - Lockwoods Folly Inlet Crossing Widner

IN_10_LFI_20260803_CS — original survey ZIP

Tangent 1

Wrightsville to Topsail·90 ft wide·1.9 mi
Doubtful
0ft controlling depth
Surveyed 11 Feb 2026 — 247 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
Zero at datumon a survey about 8 months old

USACE published exactly "0" for this reach. That means either the reach dries at datum or their processing found no usable soundings in it, and the report does not say which. Either way it is not a number to plan a passage on.


USACE record
cell 0/97authorised 12 ft12 ft shortreach IC_05_TG1_1
97% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 5 - Tangent 1

IC_05_TG1_20260211_CS — original survey ZIP

Bogue Inlet

Bogue·150 ft wide·1.7 mi
Doubtful
0ft controlling depth
Surveyed 8 Jun 2026 — 130 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
Zero at datumon a survey about 4 months old

USACE published exactly "0" for this reach. That means either the reach dries at datum or their processing found no usable soundings in it, and the report does not say which. Either way it is not a number to plan a passage on.


USACE record
cell 0/29authorised 8 ft8 ft shortreach IN_03_BOG_1
Only 29% of this reach was surveyed. The shoalest thing they found was the figure above — the 71% nobody measured could be worse, not better.

Coastal Inlets - Bogue Inlet Crossing Widner

IN_03_BOG_20260608_CS — original survey ZIP

Topsail Creek

Topsail·80 ft wide·1.4 mi
Aging
0ft controlling depth
Surveyed 28 Jul 2026 — 80 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
Zero at datumon a survey 80 days old

USACE published exactly "0" for this reach. That means either the reach dries at datum or their processing found no usable soundings in it, and the report does not say which. Either way it is not a number to plan a passage on.


USACE record
cell 0/42authorised 7 ft7 ft shortreach IN_05_TCC_1
Only 42% of this reach was surveyed. The shoalest thing they found was the figure above — the 58% nobody measured could be worse, not better.

Coastal Inlets - Topsail Creek Crossing Widner

IN_05_TCC_20260728_AD — original survey ZIP

Lockwoods Folly Inlet

Lockwoods Folly·150 ft wide·1 mi
Aging
+3ft ABOVE datum — this reach dries
Surveyed 3 Aug 2026 — 74 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
Dries 3 ft above datumon a survey 74 days old

The shoalest point in this reach stands above mean lower low water — it is dry sand at low tide. Any water here is tide, and the whole passage depends on getting it right.


USACE record
cell +3/12authorised 8 ft11 ft shortreach IN_10_LFI_1
Only 12% of this reach was surveyed. The shoalest thing they found was the figure above — the 88% nobody measured could be worse, not better.

Coastal Inlets - Lockwoods Folly Inlet Crossing Widner

IN_10_LFI_20260803_CS — original survey ZIP

Tangent 12 Widner

Bogue Sound·250 ft wide·0.6 mi
Aging
+1ft ABOVE datum — this reach dries
Surveyed 5 Aug 2026 — 72 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
Dries 1 ft above datumon a survey 72 days old

The shoalest point in this reach stands above mean lower low water — it is dry sand at low tide. Any water here is tide, and the whole passage depends on getting it right.


USACE record
cell +1/86authorised 12 ft13 ft shortreach IC_03_T12_2
86% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 3 - Tangent 12 Widner

IC_03_T12_20260805_CS — original survey ZIP

AIWW Section 3 Tanget 8 Widner (53+00 to 116+50)

Topsail·200 ft wide·0.6 mi
Aging
3ft controlling depth
Surveyed 28 Jul 2026 — 80 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
From touching bottom to 1 ft under your keelon a survey 80 days old
0 ft2 ft draft · 12 ft authorised

This band crosses zero: on the pessimistic assumptions it puts you on the bottom, and on the optimistic ones it clears by 1 ft. A band that wide is not a plan — it is a reason to arrive on a rising tide with someone on the bow. The low edge assumes 4 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 3 surveyed − 2 draft, less up to 4 assumed shoaling


USACE record
cell 3/66authorised 12 ft9 ft shortreach IN_05_TCC_4

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 3/66 — the depth, then how much of the reach their survey actually covered.

Only 66% of this reach was surveyed. The shoalest thing they found was the figure above — the 34% nobody measured could be worse, not better.

Coastal Inlets - Topsail Creek Crossing Widner

IN_05_TCC_20260728_AD — original survey ZIP

Tangent B - St. 0+00 - 200+00

Bogue Sound·90 ft wide·6.7 mi
Doubtful
4ft controlling depth
Surveyed 28 Apr 2026 — 171 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
From touching bottom to 2 ft under your keelon a survey about 6 months old
0 ft2 ft draft · 12 ft authorised

This band crosses zero: on the pessimistic assumptions it puts you on the bottom, and on the optimistic ones it clears by 2 ft. A band that wide is not a plan — it is a reason to arrive on a rising tide with someone on the bow. The low edge assumes 5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 4 surveyed − 2 draft, less up to 5 assumed shoaling


USACE record
cell 4/100authorised 12 ft8 ft shortreach IC_01_TB1_1

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 4/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 1 - Tangent B

IC_01_TB1_20260428_CS — original survey ZIP

Channel in Back Sound St. 0+00 - 80+00

Cape Lookout·100 ft wide·3 mi
Aging
4ft controlling depth
Surveyed 28 Jul 2026 — 80 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
From touching bottom to 2 ft under your keelon a survey 80 days old
0 ft2 ft draft · 7 ft authorised

This band crosses zero: on the pessimistic assumptions it puts you on the bottom, and on the optimistic ones it clears by 2 ft. A band that wide is not a plan — it is a reason to arrive on a rising tide with someone on the bow. The low edge assumes 4 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 4 surveyed − 2 draft, less up to 4 assumed shoaling


USACE record
cell 4/100authorised 7 ft3 ft shortreach SH_12_CBS_2

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 4/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Channel in Back Sound St. 80+00 - 157+68.9

SH_12_CBS_20260728_BD — original survey ZIP

AIWW Section 3 Tanget 8 (0+00 to 79+00)

Bogue Sound·90 ft wide·3.8 mi
Doubtful
5ft controlling depth
Surveyed 5 May 2026 — 164 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
From touching bottom to 3 ft under your keelon a survey about 5 months old
0 ft2 ft draft · 12 ft authorised

This band crosses zero: on the pessimistic assumptions it puts you on the bottom, and on the optimistic ones it clears by 3 ft. A band that wide is not a plan — it is a reason to arrive on a rising tide with someone on the bow. The low edge assumes 5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 5 surveyed − 2 draft, less up to 5 assumed shoaling


USACE record
cell 5/100authorised 12 ft7 ft shortreach IC_03_TG8_2

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 5/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 3 - Tangent 8

IC_03_TG8_20260505_CS — original survey ZIP

Tangent 4

New River·90 ft wide·1.3 mi
Doubtful
5ft controlling depth
Surveyed 16 Jul 2026 — 92 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
From touching bottom to 3 ft under your keelon a survey 92 days old
0 ft2 ft draft · 12 ft authorised

This band crosses zero: on the pessimistic assumptions it puts you on the bottom, and on the optimistic ones it clears by 3 ft. A band that wide is not a plan — it is a reason to arrive on a rising tide with someone on the bow. The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 5 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 5/100authorised 12 ft7 ft shortreach IC_04_T45_4

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 5/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 4 - Tangent 5

IC_04_T45_20260716_CS — original survey ZIP

AIWW CFR to LR Tangent 11

Lockwoods Folly·90 ft wide·1.4 mi
Aging
5ft controlling depth
Surveyed 3 Aug 2026 — 74 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
From touching bottom to 3 ft under your keelon a survey 74 days old
0 ft2 ft draft · 12 ft authorised

This band crosses zero: on the pessimistic assumptions it puts you on the bottom, and on the optimistic ones it clears by 3 ft. A band that wide is not a plan — it is a reason to arrive on a rising tide with someone on the bow. The low edge assumes 4 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 5 surveyed − 2 draft, less up to 4 assumed shoaling


USACE record
cell 5/100authorised 12 ft7 ft shortreach IN_10_LFI_2

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 5/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - Lockwoods Folly Inlet Crossing Widner

IN_10_LFI_20260803_CS — original survey ZIP

AIWW Section 3 Tanget 8 Widner (53+00 to 116+50)

Topsail·50 ft wide·0.6 mi
Aging
6ft controlling depth
Surveyed 28 Jul 2026 — 80 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
From touching bottom to 4 ft under your keelon a survey 80 days old
0 ft2 ft draft · 12 ft authorised

This band crosses zero: on the pessimistic assumptions it puts you on the bottom, and on the optimistic ones it clears by 4 ft. A band that wide is not a plan — it is a reason to arrive on a rising tide with someone on the bow. The low edge assumes 4 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 6 surveyed − 2 draft, less up to 4 assumed shoaling


USACE record
cell 6/91authorised 12 ft6 ft shortreach IN_05_TCC_5

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 6/91 — the depth, then how much of the reach their survey actually covered.

91% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - Topsail Creek Crossing Widner

IN_05_TCC_20260728_AD — original survey ZIP

Tangent F - St. 150+00 - 299+69.77

Bogue Sound·90 ft wide·5.7 mi
Doubtful
7ft controlling depth
Surveyed 15 Jun 2026 — 123 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
0 to 5 ft under your keelon a survey about 4 months old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 7 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 7/100authorised 12 ft5 ft shortreach IC_02_TF1_2

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 7/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 2 - Tangent F

IC_02_TF1_20260615_CS — original survey ZIP

Tangent 12 Widner

Bogue Sound·50 ft wide·0.6 mi
Aging
7ft controlling depth
Surveyed 5 Aug 2026 — 72 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
½ to 5 ft under your keelon a survey 72 days old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 4 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 7 surveyed − 2 draft, less up to 4 assumed shoaling


USACE record
cell 7/98authorised 12 ft5 ft shortreach IC_03_T12_3

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 7/98 — the depth, then how much of the reach their survey actually covered.

98% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 3 - Tangent 12 Widner

IC_03_T12_20260805_CS — original survey ZIP

New River Inlet

New River·90 ft wide·2 mi
Expired
1ft controlling depth
Surveyed 13 Feb 2017 — 3532 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 10 years old (2017-02-13)

USACE last measured 1 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 1/65authorised 6 ft5 ft short
Only 65% of this reach was surveyed. The shoalest thing they found was the figure above — the 35% nobody measured could be worse, not better.

Coastal Inlets - New River Inlet

IN_04_NRI_20170213 — original survey ZIP

Shinn Creek

Masonboro·300 ft wide·1.8 mi
Expired
10ft controlling depth
Surveyed 24 Aug 2022 — 1514 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 4 years old (2022-08-24)

USACE last measured 10 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 10/12authorised 14 ft4 ft shortreach IN_07_MAS_1
Only 12% of this reach was surveyed. The shoalest thing they found was the figure above — the 88% nobody measured could be worse, not better.

Coastal Inlets - Section 4 Tanget 3 Masonboro Inlet Crossing North Widner

IN_07_MAS_20220824_CS — original survey ZIP

AIWW Section 4 Tangent 3 (142+00 to 189+57)

Masonboro·90 ft wide·0.9 mi
Expired
6ft controlling depth
Surveyed 24 Aug 2022 — 1514 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 4 years old (2022-08-24)

USACE last measured 6 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 6/100authorised 12 ft6 ft shortreach IN_07_MAS_2
100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - Section 4 Tanget 3 Masonboro Inlet Crossing North Widner

IN_07_MAS_20220824_CS — original survey ZIP

AIWW Section 4 Tangent 3 Widner (142+00 to 189+57)

Masonboro·200 ft wide·0.7 mi
Expired
6ft controlling depth
Surveyed 24 Aug 2022 — 1514 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 4 years old (2022-08-24)

USACE last measured 6 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 6/99authorised 12 ft6 ft shortreach IN_07_MAS_4
99% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - Section 4 Tanget 3 Masonboro Inlet Crossing North Widner

IN_07_MAS_20220824_CS — original survey ZIP

AIWW Section 4 Tangent 3 Widner (142+00 to 189+57)

Masonboro·50 ft wide·0.7 mi
Expired
4ft controlling depth
Surveyed 24 Aug 2022 — 1514 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 4 years old (2022-08-24)

USACE last measured 4 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 4/90authorised 12 ft8 ft shortreach IN_07_MAS_5
90% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - Section 4 Tanget 3 Masonboro Inlet Crossing North Widner

IN_07_MAS_20220824_CS — original survey ZIP

Tangent 2

Southport approaches·90 ft wide·2.1 mi
Expired
6ft controlling depth
Surveyed 30 Jan 2025 — 624 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 1.7 years old (2025-01-30)

USACE last measured 6 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 6/100authorised 12 ft6 ft shortreach IW_02_T02_2
100% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal waterway - CFRLR - Tangent 2

IW_02_T02_20250130_CS — original survey ZIP

Tangent 1

Southport approaches·90 ft wide·3.3 mi
Expired
7ft controlling depth
Surveyed 19 Feb 2025 — 604 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 1.7 years old (2025-02-19)

USACE last measured 7 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 7/100authorised 12 ft5 ft shortreach IW_01_T01_1
100% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal waterway - CFRLR - Tangent 1

IW_01_T01_20250219_CS — original survey ZIP

WB Motts Channel Range 3

Wrightsville Beach·90 ft wide·0.1 mi
Expired
6ft controlling depth
Surveyed 23 May 2025 — 511 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 1.4 years old (2025-05-23)

USACE last measured 6 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 6/100authorised 12 ft6 ft shortreach IN_08_MOT_1
100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - WB Motts Channel Range 9

IN_08_MOT_20250523_CS — original survey ZIP

WB Motts Channel Range 4

Wrightsville Beach·90 ft wide·0.2 mi
Expired
6ft controlling depth
Surveyed 23 May 2025 — 511 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 1.4 years old (2025-05-23)

USACE last measured 6 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 6/100authorised 12 ft6 ft shortreach IN_08_MOT_2
100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - WB Motts Channel Range 9

IN_08_MOT_20250523_CS — original survey ZIP

WB Motts Channel Range 5

Wrightsville Beach·90 ft wide·0.4 mi
Expired
9ft controlling depth
Surveyed 23 May 2025 — 511 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 1.4 years old (2025-05-23)

USACE last measured 9 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 9/100authorised 12 ft3 ft shortreach IN_08_MOT_3
100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - WB Motts Channel Range 9

IN_08_MOT_20250523_CS — original survey ZIP

WB Motts Channel Range 6

Wrightsville Beach·90 ft wide·0.1 mi
Expired
6ft controlling depth
Surveyed 23 May 2025 — 511 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 1.4 years old (2025-05-23)

USACE last measured 6 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 6/100authorised 12 ft6 ft shortreach IN_08_MOT_4
100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - WB Motts Channel Range 9

IN_08_MOT_20250523_CS — original survey ZIP

WB Motts Channel Range 7

Wrightsville Beach·90 ft wide·0.2 mi
Expired
3ft controlling depth
Surveyed 23 May 2025 — 511 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 1.4 years old (2025-05-23)

USACE last measured 3 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 3/100authorised 12 ft9 ft shortreach IN_08_MOT_5
100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - WB Motts Channel Range 9

IN_08_MOT_20250523_CS — original survey ZIP

WB Motts Channel Range 8

Wrightsville Beach·90 ft wide·0.1 mi
Expired
8ft controlling depth
Surveyed 23 May 2025 — 511 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 1.4 years old (2025-05-23)

USACE last measured 8 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 8/100authorised 12 ft4 ft shortreach IN_08_MOT_6
100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - WB Motts Channel Range 9

IN_08_MOT_20250523_CS — original survey ZIP

WB Motts Channel Range 9

Wrightsville Beach·90 ft wide·0.2 mi
Expired
6ft controlling depth
Surveyed 23 May 2025 — 511 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 1.4 years old (2025-05-23)

USACE last measured 6 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 6/100authorised 12 ft6 ft shortreach IN_08_MOT_7
100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - WB Motts Channel Range 9

IN_08_MOT_20250523_CS — original survey ZIP

Taylor's Creek East

Beaufort·75 ft wide·0.3 mi
Expired
0ft controlling depth
Surveyed 10 Sep 2025 — 401 days ago
Over a year old. We will not compute a clearance from this. It is shown as history only.
Your clearance
Too old to computeon a survey about 1.1 years old (2025-09-10)

USACE last measured 0 ft here, but that survey is over a year old. A clearance figure built on it would look precise and mean nothing, so none is shown.


USACE record
cell 0/30authorised 7 ft7 ft shortreach BH_04_TCE_1
Only 30% of this reach was surveyed. The shoalest thing they found was the figure above — the 70% nobody measured could be worse, not better.

Beaufort Harbor - Taylor's Creek East

BH_04_TCE_20250910_CS — original survey ZIP

Bulkhead Channel Range 5

Beaufort·100 ft wide·0.2 mi
Doubtful
8ft controlling depth
Surveyed 15 Jul 2026 — 93 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
1½ to 6 ft under your keelon a survey 93 days old
0 ft2 ft draft · 15 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 8 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 8/100authorised 15 ft7 ft shortreach BH_01_BH3_5

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 8/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Beaufort Harbor - Gallants Channel Range 7

BH_01_BH3_20260715_CS — original survey ZIP

Tangent 5

New River·90 ft wide·0.7 mi
Doubtful
8ft controlling depth
Surveyed 16 Jul 2026 — 92 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
1½ to 6 ft under your keelon a survey 92 days old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 8 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 8/1authorised 12 ft4 ft shortreach IC_04_T45_5

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 8/1 — the depth, then how much of the reach their survey actually covered.

Only 1% of this reach was surveyed. The shoalest thing they found was the figure above — the 99% nobody measured could be worse, not better.

Atlantic Intracoastal Waterway - BFTCFR - Section 4 - Tangent 5

IC_04_T45_20260716_CS — original survey ZIP

Tangent F - St. 100+00 - 150+00

Bogue Sound·90 ft wide·5.7 mi
Doubtful
9ft controlling depth
Surveyed 15 Jun 2026 — 123 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
2 to 7 ft under your keelon a survey about 4 months old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 9 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 9/100authorised 12 ft3 ft shortreach IC_02_TF1_4

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 9/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 2 - Tangent F

IC_02_TF1_20260615_CS — original survey ZIP

Bulkhead Channel Range 4

Beaufort·100 ft wide·0.1 mi
Doubtful
9ft controlling depth
Surveyed 15 Jul 2026 — 93 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
2½ to 7 ft under your keelon a survey 93 days old
0 ft2 ft draft · 15 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 9 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 9/100authorised 15 ft6 ft shortreach BH_01_BH3_4

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 9/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Beaufort Harbor - Gallants Channel Range 7

BH_01_BH3_20260715_CS — original survey ZIP

Bulkhead Channel Range 6

Beaufort·100 ft wide·0.2 mi
Doubtful
9ft controlling depth
Surveyed 15 Jul 2026 — 93 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
2½ to 7 ft under your keelon a survey 93 days old
0 ft2 ft draft · 15 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 9 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 9/100authorised 15 ft6 ft shortreach BH_01_BH3_6

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 9/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Beaufort Harbor - Gallants Channel Range 7

BH_01_BH3_20260715_CS — original survey ZIP

AAIWW Section 3 Tanget 8 (79+00 to 128+00)

Topsail·90 ft wide·1 mi
Aging
9ft controlling depth
Surveyed 28 Jul 2026 — 80 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
2½ to 7 ft under your keelon a survey 80 days old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 4 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 9 surveyed − 2 draft, less up to 4 assumed shoaling


USACE record
cell 9/100authorised 12 ft3 ft shortreach IN_05_TCC_2

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 9/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - Topsail Creek Crossing Widner

IN_05_TCC_20260728_AD — original survey ZIP

Tangent 12

Bogue Sound·90 ft wide·3.6 mi
Aging
9ft controlling depth
Surveyed 5 Aug 2026 — 72 days ago
Between 30 and 90 days old. Enough time for a working inlet to lose a foot or more.
Your clearance
2½ to 7 ft under your keelon a survey 72 days old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 4 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 9 surveyed − 2 draft, less up to 4 assumed shoaling


USACE record
cell 9/100authorised 12 ft3 ft shortreach IC_03_T12_1

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 9/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 3 - Tangent 12 Widner

IC_03_T12_20260805_CS — original survey ZIP

AIWW Section 4 Tangent 1 (6+00 to 50+00)

New River·90 ft wide·5.2 mi
Doubtful
10ft controlling depth
Surveyed 3 Jun 2026 — 135 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
3 to 8 ft under your keelon a survey about 5 months old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 10 surveyed − 2 draft, less up to 5 assumed shoaling


USACE record
cell 10/100authorised 12 ft2 ft shortreach IC_04_TG1_2

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 10/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 4 - Tangent 1

IC_04_TG1_20260603_CS — original survey ZIP

Tangent 3

Wrightsville to Topsail·90 ft wide·0.4 mi
Doubtful
11ft controlling depth
Surveyed 20 Mar 2026 — 210 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
3½ to 9 ft under your keelon a survey about 7 months old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 11 surveyed − 2 draft, less up to 5 assumed shoaling


USACE record
cell 11/100authorised 12 ft1 ft shortreach IC_05_T24_3

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 11/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Atlantic Intracoastal Waterway - BFTCFR - Section 5 - Tangent 4A

IC_05_T24_20260320_AD — original survey ZIP

AIWW Section 3 Tanget 8 (128+00 to 231+67.7)

Bogue Sound·90 ft wide·3.8 mi
Doubtful
11ft controlling depth
Surveyed 5 May 2026 — 164 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
4 to 9 ft under your keelon a survey about 5 months old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 11 surveyed − 2 draft, less up to 5 assumed shoaling


USACE record
cell 11/2authorised 12 ft1 ft shortreach IC_03_TG8_1

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 11/2 — the depth, then how much of the reach their survey actually covered.

Only 2% of this reach was surveyed. The shoalest thing they found was the figure above — the 98% nobody measured could be worse, not better.

Atlantic Intracoastal Waterway - BFTCFR - Section 3 - Tangent 8

IC_03_TG8_20260505_CS — original survey ZIP

WB Banks Channel Range 1

Wrightsville Beach·90 ft wide·0.1 mi
Doubtful
13ft controlling depth
Surveyed 3 Dec 2025 — 317 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
5½ to 11 ft under your keelon a survey about 11 months old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 13 surveyed − 2 draft, less up to 5 assumed shoaling


USACE record
cell 13/100authorised 12 ftreach IN_08_BAK_1

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 13/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - WB Banks Channel Range 3

IN_08_BAK_20251203_CS — original survey ZIP

Tangent 2

Wrightsville to Topsail·90 ft wide·0.5 mi
Doubtful
13ft controlling depth
Surveyed 20 Mar 2026 — 210 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
5½ to 11 ft under your keelon a survey about 7 months old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 13 surveyed − 2 draft, less up to 5 assumed shoaling


USACE record
cell 13/6authorised 12 ftreach IC_05_T24_2

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 13/6 — the depth, then how much of the reach their survey actually covered.

Only 6% of this reach was surveyed. The shoalest thing they found was the figure above — the 94% nobody measured could be worse, not better.

Atlantic Intracoastal Waterway - BFTCFR - Section 5 - Tangent 4A

IC_05_T24_20260320_AD — original survey ZIP

Tangent 4

Wrightsville to Topsail·90 ft wide·1.2 mi
Doubtful
13ft controlling depth
Surveyed 20 Mar 2026 — 210 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
5½ to 11 ft under your keelon a survey about 7 months old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 13 surveyed − 2 draft, less up to 5 assumed shoaling


USACE record
cell 13/16authorised 12 ftreach IC_05_T24_4

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 13/16 — the depth, then how much of the reach their survey actually covered.

Only 16% of this reach was surveyed. The shoalest thing they found was the figure above — the 84% nobody measured could be worse, not better.

Atlantic Intracoastal Waterway - BFTCFR - Section 5 - Tangent 4A

IC_05_T24_20260320_AD — original survey ZIP

Bulkhead Channel Range 1

Beaufort·100 ft wide·0.8 mi
Doubtful
12ft controlling depth
Surveyed 13 Jul 2026 — 95 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
5½ to 10 ft under your keelon a survey 95 days old
0 ft2 ft draft · 15 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 12 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 12/22authorised 15 ft3 ft shortreach BH_01_BH1_1

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 12/22 — the depth, then how much of the reach their survey actually covered.

Only 22% of this reach was surveyed. The shoalest thing they found was the figure above — the 78% nobody measured could be worse, not better.

Beaufort Harbor - Bulkhead Channel Range 1 Widner

BH_01_BH1_20260713_AD — original survey ZIP

Bulkhead Channel Range 1 Widner

Beaufort·50 ft wide·0.2 mi
Doubtful
12ft controlling depth
Surveyed 13 Jul 2026 — 95 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
5½ to 10 ft under your keelon a survey 95 days old
0 ft2 ft draft · 15 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 12 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 12/65authorised 15 ft3 ft shortreach BH_01_BH1_4

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 12/65 — the depth, then how much of the reach their survey actually covered.

Only 65% of this reach was surveyed. The shoalest thing they found was the figure above — the 35% nobody measured could be worse, not better.

Beaufort Harbor - Bulkhead Channel Range 1 Widner

BH_01_BH1_20260713_AD — original survey ZIP

Bulkhead Channel Range 3

Beaufort·100 ft wide·0.3 mi
Doubtful
12ft controlling depth
Surveyed 15 Jul 2026 — 93 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
5½ to 10 ft under your keelon a survey 93 days old
0 ft2 ft draft · 15 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 12 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 12/100authorised 15 ft3 ft shortreach BH_01_BH3_3

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 12/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Beaufort Harbor - Gallants Channel Range 7

BH_01_BH3_20260715_CS — original survey ZIP

Tangent F - St. 50+00 - 100+00

Bogue Sound·90 ft wide·5.7 mi
Doubtful
13ft controlling depth
Surveyed 15 Jun 2026 — 123 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
6 to 11 ft under your keelon a survey about 4 months old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 13 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 13/1authorised 12 ftreach IC_02_TF1_3

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 13/1 — the depth, then how much of the reach their survey actually covered.

Only 1% of this reach was surveyed. The shoalest thing they found was the figure above — the 99% nobody measured could be worse, not better.

Atlantic Intracoastal Waterway - BFTCFR - Section 2 - Tangent F

IC_02_TF1_20260615_CS — original survey ZIP

WB Banks Channel Range 2

Wrightsville Beach·90 ft wide·0.4 mi
Doubtful
14ft controlling depth
Surveyed 3 Dec 2025 — 317 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
6½ to 12 ft under your keelon a survey about 11 months old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 14 surveyed − 2 draft, less up to 5 assumed shoaling


USACE record
cell 14/100authorised 12 ftreach IN_08_BAK_2

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 14/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - WB Banks Channel Range 3

IN_08_BAK_20251203_CS — original survey ZIP

Gallants Channel Range 7

Beaufort·100 ft wide·0.4 mi
Doubtful
13ft controlling depth
Surveyed 15 Jul 2026 — 93 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
6½ to 11 ft under your keelon a survey 93 days old
0 ft2 ft draft · 15 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 13 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 13/100authorised 15 ft2 ft shortreach BH_01_BH3_7

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 13/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Beaufort Harbor - Gallants Channel Range 7

BH_01_BH3_20260715_CS — original survey ZIP

WB Banks Channel Range 3

Wrightsville Beach·90 ft wide·0.7 mi
Doubtful
15ft controlling depth
Surveyed 3 Dec 2025 — 317 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
7½ to 13 ft under your keelon a survey about 11 months old
0 ft2 ft draft · 12 ft authorised

The low edge assumes 5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 15 surveyed − 2 draft, less up to 5 assumed shoaling


USACE record
cell 15/100authorised 12 ftreach IN_08_BAK_3

This reach is not quartered — that figure is for the whole channel width, not one side of it. USACE prints it as 15/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Coastal Inlets - WB Banks Channel Range 3

IN_08_BAK_20251203_CS — original survey ZIP

Range B

Beaufort Inlet·400 ft wide·1.3 mi
Doubtful
25ft controlling depth
Surveyed 14 Jul 2026 — 94 days ago
Between 3 months and a year old. Treat the depth as a rough historical figure, not a plan.
Your clearance
18½ to 23 ft under your keelon a survey 94 days old
0 ft2 ft draft · 45 ft authorised

The low edge assumes 4.5 ft of shoaling since the survey. That shoaling figure is an assumption calibrated on the fastest refill this corridor has published, not a measurement of this reach. The high edge assumes the survey is still exactly true. A controlling depth is the shoalest point in the whole reach, so most of the channel is deeper — but you do not know where in it you are.

band = 25 surveyed − 2 draft, less up to 4.5 assumed shoaling


USACE record
cell 25/100authorised 45 ft20 ft shortreach MC_04_RGB_1

Shoalest sounding was in the left outside quarter. USACE prints it as 25/100 — the depth, then how much of the reach their survey actually covered.

100% of this reach was surveyed — a full survey by USACE's own threshold.

Morehead City Harbor - Range B

MC_04_RGB_20260714_CS — original survey ZIP

Cedar Bush Cut

New River·90 ft wide·0.8 mi
Aging
No condition report published

USACE published "+99/0" for this reach, which is not a survivable sounding — it is a processing artefact in their report. No depth is shown rather than a fabricated one.


USACE record
cell +99/0authorised 6 ftreach IN_04_NRC_2
Only 0% of this reach was surveyed. The shoalest thing they found was the figure above — the 100% nobody measured could be worse, not better.

Coastal Inlets - New River Inlet Crossing

IN_04_NRC_20260810_OT — original survey ZIP
No condition report published

USACE surveys these channels but has never shipped a condition report with one, so no controlling depth exists for them. That is a finding about the channel, not a gap in this app, and it is shown rather than quietly dropped.

  • Coastal Inlets - Topsail Banks Channel Connector
    26 surveys on file · latest 2026-05-05 · no report
  • Coastal Inlets - Channel to Lookout Bight
    13 surveys on file · latest 2026-07-29 · no report

Source: US Army Corps of Engineers, Wilmington District — eHydro Channel Condition Reports, public domain. Dataset built 2026-08-22. Weather check from NOAA CO-OPS. Depths are feet relative to mean lower low water.