DESCRIPTIVE REPORT

U.S. DEPARTMENT OF COMMERCE

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION NATIONAL OCEAN SERVICE

DESCRIPTIVE REPORT Type of Survey Basic Hydrographic Survey Project Number S-D920-BH2-10 Registry Number F00594

LOCALITY State Pennsylvania & New Jersey General Locality Delaware River Sub-locality Marcus Hook to 1.6nm above Tacony-Palmyra Bridge

2010

CHIEF OF PARTY LTjg Megan R. Guberski

R/V Bay Hydro II

U.S. DEPARTMENT OF COMMERCE NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION HYDROGRAPHIC TITLE SHEET Registry No. F00594 State Pennsylvania & New Jersey General Locality Delaware River Sub-locality Marcus Hook to 1.6nm above Tacony-Palmyra Bridge Scale 1:7,500 Dates of Survey June 22, 2010 - July 26, 2010 Instructions Dated June 29, 2010 Project Number S-D920-BH2-10 Vessel R/V Bay Hydro II Chief of Party LTjg Megan R. Guberski : Verification By Atlantic Hydrographic Branch Depths By MBES Imagery By SSS Units Acquired In Meters Time Zone UTC Horizontal Datum North American Datum of 1983 (NAD83) Vertical Datum Mean Lower Low Water (MLLW) Remarks: Verification by Atlantic Hydrographic Branch

The purpose of this survey was to provide contemporary surveys to update National Ocean Service (NOS) nautical charts. Projection is UTMZone 18N.

The purpose of this survey is to provide contemporary surveys to update National Ocean Service (NOS) nautical charts. All separates are filed with the hydrographic data. Revisions and Rednotes were generated during office processing. The processing branch concurs with all information and recommendations in the DR unless otherwise noted. Page numbering may be interrupted or non-sequential. All pertinent records for this survey, including the Descriptive Report, are archived at the National Geophysical Data Center (NGDC) and can be retrieved via http://www.ngdc.noaa.gov/.

http://www.ngdc.noaa.gov/

TABLE OF CONTENTS A. AREA SURVEYED ……………………………………………………………1

A.1 SURVEY PUROSE …………………………………………………….1 A.2 AREA DESCRIPTION ………………………………………………...1

A.3 SURVEY STATISTICS ………………………………………………..3 A.4 SURVEY QUALITY …………………………………………………..4 A.5 SURVEY LIMITS ……………………………………………………...4 A.6 SURVEY COVERAGE ………………………………………………..4 A.7 SHORELINE REQUIREMENTS ……………………………………...5 A.8 BOTTOM SAMPLES ………………………………………………….5 B. DATA ACQUSITION AND PROCESSING ………………………………….6

B.1 EQUIPMENT …………………………………………………..6 B.2 QUALITY CONTROL ………………………………………... 6 B2.1 CROSSLINES …………………………………………….6 B2.2 UNCERTAINTY VALUES …………………………….........6 B2.3 JUNCTIONS ………………………………………………8 B2.4 SONAR SYSTEM QUALITY CONTROL CHECKS …………….8 B2.5 EQUIPMENT OPERATION EFFECTIVENESS ………………...8 B2.6 SOUND SPEED METHODS …………………………………12 B2.7 EQUIPMENT AND METHODS …………………………….. 12 B.3 CORRECTIONS TO ECHO SOUNDINGS …………………...12 B3.1 SOUNDING SYSTEM CALIBRATION DAPR DEVIATIONS ……13 B.4 DATA PROCESSING …………………………………………14 B4.1 PROCESSING SOFTWARE …………………………………….14 B4.2 GENERATED SURFACES AND MOSAICS ………………………14

C. HORIZONTAL AND VERTICAL CONTROL……………………………….15 C.1 VERTICAL CONTROL…..……………………………………15 C.2 HORIZONTAL CONTROL ……………………..……………. 16

D. RESULTS AND RECOMMENDTATIONS …………………………………. 17 D.1 CHART COMPARISON ……………………………………… 17 D1.1 CHART COMPARISON METHODS …………………………17 D1.2 AWOIS ITEMS …………………………………………….19 D1.3 CHARTED FEATURES …………………………………….19 D1.4 DANGERS TO NAVIGATION (DTON) …………………….19 D1.5 CHARTED SHOALS AND HAZARDOUS FEATURES …………19 D1.6 CHANNELS ………………………………………………21 D.2 ADDITIONAL RESULTS …………………………………….. 21 D2.1 SHORELINE INVESTIGATION RESULTS ……………………21 D2.2 AIDS TO NAVIGATION (ATON) ……………………………21 D2.3 OVERHEAD FEATURES …………………………………...22 D2.4 SUBMARINE FEATURES ………………………………….22 D2.5 FERRY ROUTES ………………………………………….23 D2.6 DRILLING STRUCTURES, ETC ……………………………24 D.2.7 UNUSUAL OR SCIENTIFICALLY SIGNIFICANT FEATURES…24 D2.8 CONSTRUCTION OR DREDGING ………………………….24 D2.9 NEW SURVEYS ………………………………………….25

E. APPROVAL SHEET …………………………………………………………...26

LIST OF TABLES Table 1: Metrics detailing the linear nautical miles covered for survey F00594 ……… 3 Table 2: Coverage Requirements ……………………………………………………… 4 Table 3: TPE Model for Sound Speed and Tides ……………………………………... 6 Table 4: Sound Speed Profilers ……………………………………………………….. 12 Table 5: Processing Software Information ……………………………………………. 14 Table 6: Sonar Surfaces and Mosaics …………………………………………………. 14 Table 7: Horizontal Control Methods …………………………………………………. 15 Table 8: Vertical Control Methods ……………………………………………………. 16

LIST OF FIGURES

Figure 1a: Survey Limits – Marcus Hook Area………………………………………… 2 Figure 1b: Survey Limits – Ben Franklin Bridge area …………………………………. 3 Figure 2: Uncertainty values ranging across depths …………………………………… 7 Figure 2a: Example of Near Nadir Parabolas ………………………………………….. 9 Figure 3b: Example of Adaptive Creating Gaps in the Coverage ……………………... 10 Figure 4a: Vertical Offset Between Lines A …………………………………………... 11 Figure 4b: Vertical Offset Between Lines B …………………………………………... 11 Figure 5: Final Tide Zoning …………………………………………………………… 13 Figure 6: Overlay of ENC and RNC Showing Offset …………………………………. 17 Figure 7: Shoal Soundings Adjacent to Bridge Support ……………………………….. 20 Figure 8: Extension of Charted Shoal ………………………………………………….. 21 Figure 9: Submerged Pipe ……………………………………………………………… 23 Figure 10: Dredged to 23ft ……………………………………………………………... 24

R/V Bay Hydro II F00594

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Descriptive Report

F00594

S-D920-BH2-10 Delaware River, PA and NJ

Scale: 1:7,500

22 June 2010 - 26 July 2010 R/V Bay Hydro II

LTjg Megan R. Guberski

A. Area Surveyed A1. Survey Purpose

The purpose for this survey is for the Bay Hydro II to acquire additional data and data to supplement the NRT5 project S-D903-NRT5-09, from Marcus Hook to the Tacony-Palmyra Bridge. The survey area above the Tacony-Palmyra Bridge was a new request from the Pilot to the Regional Navigation Manager.

A2. Area Description

This navigable area survey was conducted in accordance with Hydrographic Survey letter Instructions for Navigable Area Project S-D920-BH2-10, Survey F00594 Marcus Hook to 1.6nm above Tacony-Palmyra Bridge. The final instructions are dated June 22, 2010. An amendment to the final instructions was added June 22, 2010. This descriptive report encompasses two discrete areas. The Southern area extends over the left outer quadrant of the Marcus Hook Range Channel and includes the adjacent northern near-shore area. The North part of the Marcus Hook Range section is from the 6m curve at 39°48’17.16”N, 075°25’21.71”W westward to 39°48’12.66”N, 075°25’16.84”W eastward. The South part of the Marcus Range Section is from the 6m curve at 39°47’56.01”N, 075°26’28.30”W westward to 39°47’42.57”N, 075°26’18.83”W eastward.

The Northern area includes the Delaware River from the 6-meter curve 3000m North of the Tacony Palmyra Bridge at 40°01’24.38”N, 075°00’40.77”W westward to 40°01’14.15”N, 075°00’36.20”W eastward and south to the 6m curve at 39°55’10.43”N, 075°08’05.53”W westward to 39°55’15.33”N, 075°07’44.04”W eastward 1600m North of the Walt Whitman Bridge.


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Figure 1a: Survey Limits – Marcus Hook area


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Figure 1b: Survey Limits – Ben Franklin Bridge area

A3. Survey Statistics Linear nautical miles of single beam mainscheme sounding lines 235

Linear nautical miles of side scan sonar mainscheme sounding lines 1.14

Linear nautical miles of crosslines from single beam/Multibeam combined 9.88

Table 1: Metrics detailing the linear nautical miles covered for survey F00594


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A4. Survey Quality The entire survey is adequate to supersede previous data. A5. Survey Limits On 22 June 2010 the inshore limit of hydrography was changed from the 5 meter contour, to the 6 meter contour. Additionally, a section extending from the Betsy Ross Bridge, to 1.6 nautical miles northeast of the Tacony-Palmyra Bridge was added. Refer to Appendix V of this report. A6. Survey Coverage Coverage Area or Water Depth Coverage Required

4 meters to 20 meters water depth Complete Multibeam

> 20 meters water depth Complete Multibeam

Critical areas… Object Detection Multibeam Table 2: Coverage requirements

As per the amended Project Instructions, survey S-D920-BH2-10, F00594 was conducted using Complete Coverage Multibeam to the 6 meter depth contour. Coverage requirements were monitored by the creation of 50cm Combined Uncertainty and Bathymetry Estimator (CUBE) grids, and subsequent inspection of the Density child layer. Though not in the original projected instructions, Side Scan Sonar imagery was collected in order to fully develop several AWOIS items. Coverage was monitored by the creation coverage mosaics. A geo-referenced .tif file was included with the each SSS mosaic. The following are known failures in MBES coverage requirements

• AWOIS #9998 was assigned a 50m search radius, which could not be fully covered by MBES due to the survey vessel draft limitations. MBES data was collected to the extent possible, and the entire search area was ensonified by 200% Side Scan Sonar. A linear object matching the description of AWOIS #9998 was detected by SSS at position 39°58'19.780"N, 075°05'32.754W".

• Assigned AWOIS #4729 and #4730 were both assigned a 50m search radus, which could

not be fully covered by MBES due to the survey vessel's draft. MBES data was collected to the extent possible, and the entire search area was ensonified by 200% Side Scan Sonar coverage.

• AWOIS #4422 was assigned a 50m search radius, which could not be fully covered by

MBES due to the survey vessel draft limitations. MBES data was collected to the extent possible. An obstruction with a 12ft least depth was detected at position 40°01'03.665", -075°02'17.008".

The assigned 6 meter contour was often missed. For the following reasons:


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• Above the Delair Rail Road Lift Bridge, the slope of the shore was often too steep for a

catamaran hull to approach.

• Below the Delair Bridge, the 6m contour was generally located shoreward of a continuous line of derelict piers, the area between which was visibly fouled with piles and debris.

• There was an uncharted private marina near position 39° 59' 40.75"N, 075° 03' 44.21"W,

that had mooring buoys anchored in the river. The boats moored to the buoys blocked the survey vessel from acquiring the 6m contour. Additionally, a 230m x 12m holiday was left in the coverage grid in the area of the marina.

A7. Shoreline Requirements Limited shoreline verification was conducted seaward of the assigned 6m NALL line. Wherever possible, verification was done for features within the 4m contour. Visible wrecks that were not observed by the field party at low tide are noted. Refer to Descriptive Report\Appendices\II Survey Features Report. A8. Bottom Samples No bottom samples were assigned or collected.


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B. Data Acquisition and Processing B1. Equipment

The 16.4m R/V Bay Hydro II was used to acquire all data for Project S-D920-BH2-10, F00594. Bathymetry was acquired using a RESON 7125 Multibeam Echosounder (MBES). Imagery was acquired using and KLEIN 5000 Side Scan Sonar (SSS). The vessel was positioned using a Trimble DGPS receiver. Attitude and heading were recorded using an Applanix POS M/V v4 system. Speed of sound at the MBES transducer face was acquired using an ODOM Digibar Pro. Conductivity, Temperature, and Depth (CTD) profiles were collected using a Sea-Bird 19+ profiler. Vessel configurations, equipment, operation, and data acquisition and processing were consistent with specifications described in the DAPR.

B2. Quality Control B2.1 Crosslines

R/V Bay Hydro II collected 9.88 linear nautical miles (lnm) of Multibeam Echosounder (MBES) cross lines, equating to 4.2% of main scheme MBES data. The cross lines are in agreement, within one foot, of their respective data sets.

B2.2 Uncertainty Values The Total Propagated Error parameters for F00594 are as follows:

Tide Values (Meters) Sound Speed Values (Meters/Second)

Measured Zoning Measured Zoning TCARI TCARI 2 0.2

Table 3: TPE Model for Sound Speed and Tides

Uncertainty values for survey F00594 range from 0.23m to 0.27m, with higher values occurring in the deeper areas, and where outer beams overlapped. In the picture below, the color values range between 0.23m and 0.25m, clearly increasing in the deeper channel.


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Figure 2: Uncertainty values ranging across depths


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B2.3 Junctions No junction surveys were assigned. B2.4 Sonar System Quality Control Checks

• MULTIBEAM ECHOSOUNDER QUALITY CONTROL Angular biases were resolved via a Patch Test that was completed on DN 173. Further quality control was accomplished through analysis of the Uncertainty and Standard Deviation child layers of the CUBE surface. Accuracy of the bathymetric data was further controlled by the high degree of overlap between congruent lines, and by comparison of mainscheme lines to crosslines.

• SIDE SCAN SONAR QUALITY CONTROL Imagery from the KLEIN SSS was used to develop AWOIS #4729 and #4730, and to partially develop #9998. A confidence check was preformed prior to acquisition by towing the sonar orthogonally over a visually conspicuous linear object.

B2.5 Equipment Operational Effectiveness • HIGH NUMER OF HOLIDAY LINES ACQUIRED

The Delaware River proved to be a challenging environment in which to conduct full bottom coverage using a RESON 7125 MBES. Transmission loss was high due to absorption by the muddy river bed, and scattering from the high amount of suspended sediment. In order to overcome the transmission loss, the system was run at full power (220 dB), with a high gain (18 – 22 dB). This set up overcame the absorption and scattering, but also returned a great deal of erroneous noise. This noise occurred as extraneous soundings in the outer beams, and as parabolas near nadir. See Figure 3a. To minimize the amount of noise being returned, adaptive gates were used during acquisition. These gates operate by locating the initial bottom detection, then propagating to either side based on the depth of the previous beams. While the gates reduced the amount of noise picked up by the system, they also caused the sonar to frequently lose the bottom partway through the swath. This loss occurs when the outwardly propagating gate locks onto noise in the water column. If the noise is high enough off the bottom, the gate adapts, searching for the next returning beam at a similar depth. Meanwhile, the energy returning from the true bottom is rejected as noise. When this happens, the swath is cut off from the noise outward, creating a gap in coverage. See Figure 3b The gaps in coverage due to the gates, and the gaps due to aggressive cleaning, both contributed to the large number of holiday lines that were acquired. Even though the data contains an unusual level of noise, the Total Propagated Uncertainty remains within specifications.


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Figure 3a: Example of near-nadir parabolas


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Figure 3b: Example of adaptive gates creating gaps in coverage

• VERTIAL OFFSET BETWEEN LINES

A vertical offset between survey lines occurred throughout the survey. The cause of this offset is unknown. It cannot be attributed to current (see figure 4a and 4b for discussion), nor can it be attributed to fuel loading, since the error occurs within days. The offset is between 0.10 and 0.20 meters, and remains within the error budget for IHO order 1.


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Figure 4a: Vertical Offset Between Lines A: This figure shows the vertical offset between lines. Lines 139_1629

(red) and 113_1425 (yellow) were both collected at slack water. Line 114_1429 (green) was collected at maximum flood. The vertical difference between lines collected at slack make offsets due to current unlikely. Furthermore, the good correlation of peaks and valleys between the red and yellow lines make an horizontal

offset unlikely.

Figure 4b: Vertical Offset Between Lines B: This figure shows excellent correlation between line 112_1419

(gray) and line 113_1425 (green). The lines were collected in reciprocal directions, in approximately 1.5 knots of flooding current. Further evidence current is not the source of the error.


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B2.6 Sound Speed Methods

Make Model

Sea-Bird SBE 19+ SEACAT Profiler Table 4: Sound Speed Profilers

Sound velocity casts were acquired every 2 - 4 hours. Individual .spv files were then concatenated to a master file, named Philly_Master.svp, which was applied to the data post processing. The CARIS setting used were Nearest in Distance Within Time, with 4 hours as the time window. B2.7 Equipment and Methods

Vessel configurations, equipment, operation, and data acquisition and processing were consistent with specifications described in the DAPR except for the following deviations:

• Re-merging of survey lines caused navigation examined flags to be reset to NO. All MBES data has been examined for navigation and attitude errors.

• Due to an unknown error, True Heave could not be applied to line 131_1343, DN 186.

B3. Corrections to Echo Soundings

All sounding data were reduced to mean lower-low water (MLLW) using TCARI tides from the primary stations: 8538886, 8540433, 8545240, and 855910, adjusted for tidal constituents and residuals provided by CO-OPS as specified in the Project Instructions and illustrated in Figure 5.


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Figure 5: Final Tide Zoning

B3.1 Sounding System Calibration DAPR Deviations

On 22 May 2010 (DN 142) the Bay Hydro II's RESON 7125 receiver, projector, and link control unit (LCU) were removed. On 15 June 2010 (DN 166) a different receiver, projector, and LCU were installed. A patch test was performed on 22 June (DN 173) On 24 June (DN 175) the RESON 7125 started experiencing intermittent drop out due to a faulty Receiver cable. On 28 June (DN 179) the cable was replaced, resolving the problem.


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B4. Data Processing B4.1 Processing Software Software Used Version Service Pack Hotfix Used For

Caris HIPS/SIPS 7.0 2 1 MBES processing

Pydro 10.7 (r2982) n/a n/a Feature analysis Table 5: Processing Software Information

B4.2 Generated Surfaces and Mosaics

Surface Name Type Resolution Parameter Purpose

F00594_North_50cm_CUBE MBES 50cm CUBEParams_2010.xml Coverage

F00594_South_50cm_CUBE MBES 50cm CUBEParams_2010.xml Coverage

PA_Visible_Wreck SSS 50cm N/A Coverage

F00594_NJ_Pipe SSS 50cm N/A Coverage

Table 6: Sonar Surfaces and Mosaics


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C. Vertical and Horizontal Control C1. Summary of Vertical Control Methods Vertical Datum: Mean Lower Low Water (MLLW)

Vertical Resolution: 0.01

Vertical Units: meters Table 7: Vertical Control Methods

Tide Stations Station Number: 853-8886

Station Type: Primary (NWLON)

Used for Corrections: Yes Table 7.1

Station Number: 854-0433









Water Levels Used for Correction: Final Approved

Tide File(s) Used for Correction: 8538886.txt, 8540433.txt, 8545240.txt, 8551910.txt

Time and Height Correctors: Final

Zone Corrector File: D920BH22010.tc Table 7.5

Tides Submitted Tides Received

28 July 2010 10 August 2010 Table 7.8


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The vertical datum for this project was Mean Lower Low Water (MLLW). The operating National Water Level Observation Network (NWLON) stations at Philadelphia, PA (8545240) and Reedy Point, DE (8551910) serve as datum control for the survey area including determination at each subordinate station. Stations at Marcus Hook, PA (8540433), and Tacony-Palmyra Bridge (8538886) served as subordinate stations. The TCARI grid D920BH22010.tc, along with water level data from the control and subordinate stations, was used to correct echo soundings to MLLW. A request for delivery of final approved (verified) tides for this survey was forwarded to CO-OPS on 28 July 2010 in accordance with the FPM and project letter instructions. The preliminary TCARI grid was accepted as final from final smooth tide report from CO-OPS on 10 August 2010. Verified grid and water levels were applied to all bathymetry for the survey.

C2. Summary of Horizontal Control Methods Horizontal Coordinate System: UTM 18n

Horizontal Datum: North American Datum of 1983 (NAD83)

Horizontal Resolution: 0.1

Horizontal Units: meters Table 8: Horizontal Control Methods

Positioning Method Positioning Station Name

DGPS Annapolis, MD (301 kHz)

Table 8.1


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D. Results and Recommendations D1. Chart Comparison D1.1 Chart Comparison Methods

Survey F00594 was compared to RNC's 12312, 12313, and 12314, and to ENC's US5PA11M, US5PA12M, and US5PA13M using PYDRO 10.7 and CARIS HIPS & SIPS 7.0.

It is important to note that there is a significant southwest shift of all features and shoreline construction between local ENC's and RNC's. See Figure 6.

Figure 6: Overlay of ENC and RNC showing offset

Raster Comparison Number: 12312

Scale: 1:40,000

Edition: 55th Edition

Edition Date: 1 August 2009


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Notices: Thru 37/2010 (11 September 2010) Discussion: Charted depths for chart 12312 are an accurate representation of the survey scale sounding set. Additionally, the charted 18ft contour is generally correct, with the exception of the area near the Delair Rail Road Bridge and the area near Marcus Hook. Number: 12313

Scale: 1:15,000

Edition: 55th Edition

Edition Date: 1 December 2008

Notices: Thru: 37/2010 (11 September 2010) Discussion: Charted depths and contour lines for chart 12313 are an accurate representation of the survey scale sounding set and isobaths. The only significant discrepancy occurs with the 18ft contour, which fails to enclose the currently surveyed isobath in several places. Number: 12314

Scale: 1:20,000

Edition: 32nd edition

Edition Date: 1 January 2008

Notices: Thru 37/2010 (11 September 2010) Discussion: Charted depths and contour lines for chart 12314 are an accurate representation of the survey scale sounding set and isobaths. The only major discrepancy occurs north of the Tacony-Palmyra Bridge, where the charted 18ft contour lines do not fully enclose the extents of two mid-river shoals. Additionally, two small shoals in position 39°59’05.0’N, 075°03’47.4”W and 39° 59'29.72"W, 075° 03'33.83"W, are not surrounded by contour lines. ENC Comparison Number: US5PA11M

Edition Number: 18

Update Application Date: 3 Dec 2010

Issue Date: 3 Dec 2010 Discussion: The charted 18ft isobath is generally slightly offshore of the surveyed 18ft line. The exception is around the area 39°58'29.95"N, 075°04.09"W, where an 18ft shoal has moved offshore of the charted contour. There are three charted sounding that did not agree with new survey data. The first, a 24 foot sounding at 39°47’56.04”, 75°26’16.368” should be changed to a 23 foot sounding at 39°46’56.469”, 075°26’16.812”; the second, a charted 22 foot dangerous rock at position 39°47’58.687”, 075o25’59.158” should be changed to a 18 foot sounding; and third, an 18 foot dangerous rock should be changed to a 19 foot sounding at 39o46’56.469, 075o26’16.812. See survey PSS for details and justification.


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Number: US5PA12M

Edition Number: 21

Update Application Date: 16 March 2010

Issue Date: 6 October 2010 Discussion: There is good agreement between chart US5PA12M and surveyed depths. The charted 18ft contour is generally offshore of the surveyed 18ft isobath. However the reverse is true around 39°58’29.9”N, 075°05’04.0”W between the north point of Petty’s Island and Fisher Point Dike, and again near position 39°58’48.1”N, 075°04’3.6”W on the Pennsylvania side just south of the Delair Rail Road Lift Bridge. Number: US5PA13M

Edition Number: 15

Update Application Date: 19 March 2010

Issue Date: 8 July 2010 Discussion: Charted depths for chart US5PA13M are an accurate representation of the survey scale sounding set. The charted 18ft contour generally encloses the surveyed isobaths, with a few exceptions in which shoals extend up to 25m offshore the charted line. The surveyed 12ft isobath, where captured, is also generally inshore of the charted 12ft contour. Exceptions occur near the lower Torresdale range light, and again near the lower Delair lower range light. Additionally, two small shoals located at 39°59’05.0’N, 075°03’47.4”W and 39°59’29.72’N, 075°03’33.83”W, are not surrounded by appropriate contour lines. D1.2 AWOIS Items Number of AWOIS Items Addressed: 9

Number of AWOIS Items Not Addressed: 2

There are 7 AWOIS items assigned for full investigation, and two 2 AWOIS provided as information only within the bounds of F00594. Refer to Descriptive Report\Appendices\II Survey Features Report.

D1.3 Charted Features (Non-AWOIS)

For a detailed discussion of all charted features, refer to Appendix II of this report.

D1.4 Dangers to Navigation (DTON) No DTON’s were identified within the limits of the survey F00594. D1.5 Charted Shoals and Hazardous Features

A 17ft and 19ft shoal sounding was identified in the CUBE grid in close proximity to one of the


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Tacony-Palmyra Bridge supports. Due to the proximity to the bridge support, the hydrographer recommends that no charting action is required. Refer to Descriptive Report\Appendices\II Survey Features Report. See Figure 7.

Figure 7: Shoal soundings adjacent to bridge support

An extension of a charted shoal was identified extending 650 meters northeast of the currently charted edge which terminates at a northernmost extent of 40°01'11.713"N, 075°00'53.185"W. Refer to Descriptive Report\Appendices\II Survey Features Report. See Figure 8.


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Figure 8: Extension of charted shoal

D1.6 Channels

Several discrepancies between tabulated channel depths and surveyed depths were discovered within the bounds of F00594. A report was given to Navigation Manager Howard Danley on 12 August 2010. The report was forwarded the U.S Army Corps of Engineers (USACE) on 23 August 2010. Acknowledgement was returned on 24 August 2010. Please refer to Descriptive Report\Appendices\V Supplemental Survey Records & Correspondence for the following reports: Survey F00594 Delaware River Channel Depths_I.docx; Survey F00594 Delaware River Channel Depths_II.docx; and USACE acknowledgement correspondence.

D2. Additional Results D2.1 Shoreline Investigation Results

Shoreline features within and near the limits of F00594 are addressed in the Feature Report. Refer to Descriptive Report\Appendices\II Survey Features Report.

D2.2 Aids to Navigation (ATONs) All USCG aids serve their intended purpose. All Private aids serve their intended purpose. The Bay Hydro II acquired the position of the USCG Fisher Point Range Front Light. This information was given to Navigation Manager Howard Danley, who provided it to the appropriate Pilots association.


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D2.3 Overhead Features (bridges, overhead cables, overhead pipelines)

Four bridges are within the survey area and their condition and clearances were not required for field team investigation.

D2.4 Submarine Features

A submarine pipe-like obstruction was located at 40°01'11.241"N, 075°01'34.657"W. Refer to Descriptive Report\Appendices\II Survey Features Report. See Figure 9.

Figure 9: Submerged Pipe


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D2.5 Ferry Routes

A ferry terminal is located at 39.944 N, 075°.132W. There are no charted ferry routes within the survey area.

D2.6 Drilling Structures, Production Platforms, and Well Heads No drilling structures, production platforms or well heads were located within the bounds of F00594. D2.7 Unusual or Scientifically Significant Features

Large sand waves definitely had an impact on the hydrographic data quality. Large sand wave phenomenon was rampant throughout the northern survey section. The sand wave peaks would oscillate their directional flow with the flooding and ebbing tide. The bathymetric data would suffer when acquiring the data against the oscillating direction and would in turn result with blowouts. Almost the entirety of holiday acquisition of F00594 would result from this phenomenon. There were many large mounds throughout the entire survey which may have resulted from early channel dredge spoils.

D2.8 Construction or Dredging

There is ongoing shoreline construction as the Philadelphia waterfront north of the Ben Franklin Bridge is developing. There is a Dredged to 23 ft area at 40°01'20.09"N, 075°01'01.12"W. Refer to Descriptive Report\Appendices\II Survey Features Report.

Figure 10: Dredged to 23 ft


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D2.9 New Surveys

Many charted visible and submerged obstructions within the survey area were not addressed due to their location nearshore and in depths likely less than the coverage requirements of 6m. Acquiring the 4m contour is highly risky due to the large volume of nearshore obstructions. In order to properly address and update the nearshore feature's status, a combination of LIDAR from the 6m contour to the inshore area and updated orthoimagery should be acquired. The current variety of data will resolve the features questionable status and more accurately reflect the Delaware River charts at present day.


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E. Approval Sheet

As Lead Hydrographer, I have ensured that standard field surveying and processing procedures were followed in producing this examination in accordance with the Office of Coast Survey Hydrographic Survey's Division Field Procedures Manual, and NOS Hydrographic Surveys Specifications and Deliverables. Field Operations for this basic hydrographic survey were conducted under my daily supervision with frequent checks of progress and adequacy. This survey is complete and no additional work is required.

All field sheets, this Descriptive Report, and all accompanying records and data are approved. All records are forwarded for final review and processing to the Atlantic Hydrographic Branch.

Survey F00594 is adequate to supersede charted soundings in their common areas.

The Data Acquisition and Processing Report for S-D920-BH2-10 is submitted separately and contains additional information relevant to the survey.

Approved and Forwarded By:

Respectfully Submitted:

_______________________Nicole M. Trenholm, ERT Contractor BAY HYDRO II

_______________________Robert W. Mowery, Survey Technician BAY HYDRO II

Approved and Forwarded:

_______________________LTjg Megan R. Guberski, NOAA Officer in Charge/ BAY HYDRO II

Digitally signed by Nicole Trenholm Date: 2010.09.10 15:10:58 -04'00'

Digitally signed by Robert W. Mowery DN: cn=Robert W. Mowery, o=BAY HYDROGRAPHER, ou=NOAA/NOS/OCS/NSD/NRB, [email protected], c=US Date: 2010.09.10 15:12:46 -04'00'

Digitally signed by Megan Guberski Date: 2010.09.10 15:14:46 -04'00'

APPENDIX I

TIDES AND WATER LEVELS

UNITED STATES DEPARMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service

Silver Spring, Maryland 20910

HYDROGRAPHIC BRANCH: AtlanticS-D920-BH-2010

LOCALITY:

F00594

June 22 - July 26, 2010

TIDE STATION USED:

HYDROGRAPHIC PROJECT:HYDROGRAPHIC SHEET:

DATE :

Delaware River, DE, NJ, PATIME PERIOD:

August 6, 2010

Tacony Palmyra, NJ 853-8886Lat. Long.40° 0.72’ N 75° 2.58' W

PLANE OF REFERENCE (MEAN LOWER LOW WATER): 0.000 metersHEIGHT OF HIGH WATER ABOVE PLANE OF REFERENCE: 2.071 metersTIDE STATION USED: Marcus Hook, PA 854-0433

Lat. 39° 48.70'N Long. 75° 24.6' W

PLANE OF REFERENCE (MEAN LOWER LOW WATER): 0.000 meters

CHIEF, OCEANOGRAPHIC DIVISION

HEIGHT OF HIGH WATER ABOVE PLANE OF REFERENCE: meters1.76

TIDE STATION USED: Philadelphia, PA 854-5240

Lat.39° 56.0'N Long. 75° 8.5'WPLANE OF REFERENCE (MEAN LOWER LOW WATER): 0.000 metersHEIGHT OF HIGH WATER ABOVE PLANE OF REFERENCE: 1.916

TIDE STATION USED: Reedy Point, DE 855-1910Lat. 39° 33.53'N Long. 75° 34.34'W

PLANE OF REFERENCE (MEAN LOWER LOW WATER): 0.000 metersHEIGHT OF HIGH WATER ABOVE PLANE OF REFERENCE: 1.683

meters

meters

REMARKS: RECOMMENDED Grid

Please use the TCARI grid "D920BH22010.tc" provided with the ProjectInstructions as the final grid for project S-D920-BH2-2010, F00594,during the time period between June 22 - July 26, 2010.

Refer to attachments for grid information.Note 1: Provided time series data are tabulated in metric units

(meters), relative to MLLW and on Greenwich Mean Time on the 1983-2001 National Tidal Datum Epoch (NTDE).

Note 2: The datum for Tacony-Palmyra (8538886)was updated after the ProjectInstructions were sent. The MSL-MLLW value interpolated by TCARI has adifference of 0.015m between the original grid and a grid with updated datumvalues in the area immediately around Tacony-Palmyra. This should notdrastically affect the tide correctors for the survey.

TIDE NOTE FOR HYDROGRAPHIC SURVEY

_______________________________________________Peter J. Stone

Digitally signed by Peter J. Stone DN: cn=Peter J. Stone, o=NOAA/NOS/CO-OPS, ou=Oceanographic Division, [email protected], c=US Date: 2010.08.09 19:00:32 -04'00'

<Unknown 'Field Unit' (Pydro: Config...PSS Metadata)>

July 27, 2010

MEMORANDUM FOR: Chief, Requirements and Development Division, N/OPS1

FROM: <Unknown 'Field Unit' and/or 'Lead Hydrographer' (Pydro: Config...PSS Metadata)>

SUBJECT: Request for Approved Tides/Water Levels

Please provide the following data:

1. Tide Note2. Final TCARI grid3. Final zoning in MapInfo and .MIX format4. Six Minute Water Level data (Co-ops web site)

Transmit data to the following:

NOAA/NOS/Atlantic Hydrographic BranchN/CS33, Building #2439 West York StreetNorfolk, VA 23510ATTN: Chief AHB

These data are required for the processing of the following hydrographic survey:

Project No.: S-D920-BH2-10-Philadelphia

Registry No.:

State: Pennsylvania

Locality: Delaware River, New Jersey, Pennsylvania

Sublocality: Marcus Hook to 1.6nm above Tacony Palmyra Bridge

Attachments containing:

1) an Abstract of Times of Hydrography,2) digital MID MIF files of the track lines from Pydro

cc: N/CS33

Generated by Pydro v9.9 (r2712) on Tue Jul 27 14:00:35 2010 [UTC]

UNITED STATES DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration

Year_DOY Min Time Max Time

2010_173 12:42:57 19:56:39

2010_174 12:23:18 15:31:19

2010_175 12:07:52 15:33:30

2010_176 17:50:09 18:31:56

2010_179 18:12:35 19:58:46

2010_180 11:55:55 20:30:17

2010_181 12:20:52 20:26:00

2010_182 12:22:58 20:02:12

2010_183 12:35:46 20:22:46

2010_184 12:16:24 19:15:46

2010_186 12:19:18 20:08:45

2010_187 12:10:50 19:55:16

2010_188 12:18:33 14:13:29

2010_203 13:08:18 19:58:09

2010_204 12:07:01 20:00:24

2010_205 12:25:19 20:05:49

2010_206 13:11:03 16:52:42

2010_207 15:37:23 16:46:41

Request for Approved Tides Times of Hydrography

Page 2

APPENDIX II

SUPPLEMENTAL SURVEY RECORDS AND CORRESPONDENCE

FYI -------- Original Message --------

Subject:RE: [Fwd: Delaware River Depth Findings from Bay Hydrographer] Date:Tue, 24 Aug 2010 17:24:39 -0400

From:Rooney, Timothy J NAP <[email protected]> To:Howard Danley <[email protected]> CC:Shamberger, Greg H NAP <[email protected]>

References:<[email protected]>

Howard: I received the data. I am going to forward to surveys for their review. Tim -----Original Message----- From: Howard Danley [mailto:[email protected]] Sent: Monday, August 23, 2010 2:33 PM To: Rooney, Timothy J NAP Cc: Megan Guberski; Nicole Trenholm; [email protected]; Lawrence T KreppSubject: [Fwd: Delaware River Depth Findings from Bay Hydrographer] Tim, Welcome back. Attached are depths found when NOAA vessel BAY HYDRO II recently surveyed in the Philadelphia area. Howard -------- Original Message -------- Subject: Delaware River Depth Findings from Bay Hydrographer Date: Mon, 16 Aug 2010 15:34:26 -0400 From: Steve.Soherr <[email protected]> <mailto:[email protected]> To: Howard Danley <[email protected]> <mailto:[email protected]> Howard,

From Howard Danley <[email protected]> Sent Wednesday, August 25, 2010 9:31 am

To Megan Guberski <[email protected]> , Nicole Trenholm <[email protected]> , Robert Mowery <[email protected]>

Subject [Fwd: RE: [Fwd: Delaware River Depth Findings from Bay Hydrographer]]

Bay Hydro Survey occurred between June 21st and July 26th 2010. Latest Tabulated Corps of Engineer Data is from Corps of Engineers TabulationLetters Dated March 4, 2009 and August28, 2009(actual surveys of various channels and ranges were actually surveyed prior to these dates). Word Documents are from the Bay Hydro and contain more details on each sounding (especially the second document). I made the pdf from their data. It shows actual depth found by BAY HYDROGRAPHER and the Depth rounded according to NOS rules). Thanks, Steve

Subject:RE: [Fwd: Delaware River Depth Findings from Bay Hydrographer] Date:Tue, 24 Aug 2010 17:24:39 -0400

From:Rooney, Timothy J NAP <[email protected]> To:Howard Danley <[email protected]> CC:Shamberger, Greg H NAP <[email protected]>

References:<[email protected]>

Howard: I received the data. I am going to forward to surveys for their review. Tim

From <[email protected]> Sent Monday, August 16, 2010 5:16 pm

To [email protected] , [email protected] Cc "Steve.Soherr" <[email protected]>

Subject Survey # Correction in F00594 Delaware River Channel Conflict Report Attachments F00594.zip 3.7MB

Good afternoon~ Attached is the F00594 Del River Channel Conflict Report with the correct project #. I apologize for the project # confusion. The attachment includes Survey F00594 Delaware River Channel Depths_I.docx and Survey F00594 Delaware River Channel Depths_II.docx ~Nikki Trenholm

From <[email protected]> Sent Friday, August 13, 2010 2:58 pm

To [email protected] , Lawrence.T.Krepp <[email protected]>

Subject Fwd: F00579 Delaware River Channel Depth Conflict Report Attachments F00579.zip 3.7MB

----- Original Message -----

From <[email protected]> Date Fri, 13 Aug 2010 08:13:03 -0400

To [email protected],Lawrence.T.Krepp <[email protected]>Cc [email protected]

Subject F00579 Delaware River Channel Depth Conflict Report

Good Morning! Please refer to: the zip file F00579.zip and two attachments Survey F00579 Delaware River Channel Depth_I and Survey F00579 Delaware River Channel Depth__II for channel depth discrepancies. The attachments address several channel areas with a least depth that is shoaler than the tabulated controlling depth. Please forward BHII of any correspondence between the Navigation Manager and the ACOE. Acknowledgment emails from ACOE and the Navigation Manager will be included as Correspondence in F00579 survey deliverables. BHII is analyzing F00579 data and beginning the reporting stage of the survey. Please advise BHII of any DtoNS that should result from the channel discrepancies or if charting action should be deferred to AHB. Best Regards, Nicole M. Trenholm

Survey F00594 Delaware River Channel Depth Conflict Report August 12, 2010

S5401 R/V Bay Hydro II

Survey F00594 Delaware River Channel Depth Conflict Report

Survey F00594 reveals shoaler Delaware River channel depths than

tabulated depths from surveys by the Corps of Engineers (Report of March and August of 2009).

F00594 Bathymetry acquired by Reson 7125 June 21st through July 26th 2010.

Channel

Name

Channel

Quarter

Controlling

Depth (ft)

Day

(Julian)

Line Latitude Longitude F0059

4

Least

Depth

(ft)

Tab. Depth vs.

F00594 Depth

Difference (ft)

Benjamin

Franklin

Bridge to

Cambria St.

ROQ 39.9 181 026_151

7

39-58-21.75N 075-06-18.25W 39.590 0.31

Cambria St.

to

Allegheny

Ave.

RIQ 38.3ft 181 004_200

5

39-58-26.40N 075-05-54.89W 37.798 0.502

Harbor ROQ 34.8 184 033_144

8

39-58-27.20N 075-05-40.90W 33.907 0.893

Draw LOQ 41.2 205 005_151

5

39-59-12.63N 075-03-54.99W 39.59 1.61

Draw LOQ 41.2 183 080_162

6

39-58-59.00N 075-04-10.29W 38.27 2.93

Draw LOQ 41.2 184 005_164

4

39-58-58.59N 075-04-09.95W 39.793 1.407

Draw LOQ 41.2 184 005_164

4

39-58-58.02N 075-04-11.53W 40.276 0.924

Frankford LOQ 39.3 186 003_121

9

40-00-42.83N 075-02-34.55W 33.835 5.465

Frankford LIQ 38.8 205 071_124

5

40-00-32.74N 075-02-55.38W 37.461 1.339

Tacony LOQ 34.5 186 043_132

3

40-01-14.64N 075-01-03.99W 34.016 0.484

Tacony RIQ 39.9 186 002_123

7

40-01-11.06N 075-01-09.18W 39.055 0.845

Tacony ROQ 38.7 186 003_121

9

40-00-55.57N 075-01-55.00W 37.995 0.705

Tacony ROQ 38.7 186 002_123

7

40-00-56.70N 075-01-52.26W 36.279 2.421




S5401 R/V Bay Hydro II

Survey F00594 Delaware River Channel Depth Conflict Report

Survey F00594 reveals shoaler Delaware River channel depths than

tabulated depths from surveys by the Corps of Engineers (Report of March and August of 2009).

F00594 Bathymetry acquired by Reson 7125 June 21st through July 26th 2010.


Name of Channel: Benjamin Franklin Bridge to Cambria St.

ROQ Controlling Depth: 39.9ft

At 39-58-21.75N 075-06-18.25W on day 2010-181 line 026_1517 a least depth of 39.590ft

Image: BenFrank_Cambria_ROQ_39.59.png


Name of Channel: Cambria St. to Allegheny Ave.

RIQ Controlling Depth: 38.3ft


Image: Cambria_Allegh_RIQ_controlling depth is 38.3.png


Name of Channel: Harbor Channel



Image: Harbor_Channel_ROQ_ld_33.097.png


Name of Channel: Draw Channel

LOQ Controlling Depth: 41.2ft


Image: Draw_Channel_LOQ_ld_39.590





Image: Draw_Channel_LOQ_controlling_depth_41.2


Name of Channel: Frankford Channel

LOQ Controlling Depth: 39.3


Image: Frankford_Channel_LOQ_ld_33.835.png


LIQ Controlling Depth: 38.8ft


Image: Frankford_Channel_LIQ_ld_37.461


Name of Channel: Tacony Channel

LOQ Controlling Depth: 34.5ft


Image: Tacony_Channel_LOQ_ld_34.5


RIQ Controlling Depth: 39.9ft


Image:Tacony_Channel_RIQ_ld_39.055.png





Image:Tacony_Channel_ROQ_controlling_depth_38.7

APPENDIX III

SURVEY FEATURES REPORT

Appendix III - AWOIS

Registry Number: F00594

State: Pennsylvania

Locality: Delaware River

Sub-locality: Marcus Hook

Project Number: S-D920-BH2-10

Survey Dates: 20100622 - 20100726

Charts AffectedNumber Edition Date Scale (RNC) RNC Correction(s)*

12313 52nd 12/01/2008 1:15,000 (12313_1)USCG LNM: 04/28/2009 (06/01/2010)NGA NTM: 04/12/1997 (06/05/2010)

12314 32nd 02/01/2008 1:20,000 (12314_2)USCG LNM: 03/02/2010 (06/01/2010)

NGA NTM: None (06/05/2010)

12312 55th 08/01/2009 1:40,000 (12312_1)USCG LNM: 06/08/2010 (07/06/2010)NGA NTM: 01/24/1998 (07/17/2010)

13003 49th 04/01/2007 1:1,200,000 (13003_1) [L]NTM: ?

14500 27th 10/01/2002 1:1,500,000 (14500_1) [L]NTM: ?

* Correction(s) - source: last correction applied (last correction reviewed--"cleared date")

Features

No. NameFeature

TypeSurveyDepth

SurveyLatitude

SurveyLongitude

AWOISItem

1.1 AWOIS 9998 - disproval AWOIS [no data] [no data] [no data] ---

1.2 AWOIS 14653 - 32ft OBSTRN Obstruction 9.71 m 39° 58' 24.9" N 075° 05' 43.0" W 14653

1.3 AWOIS 4739 - Update Wreck [None] 39° 58' 19.2" N 075° 05' 28.1" W 4739

1.4 AWOIS 14654 - Delete GP [None] 39° 58' 09.7" N 075° 06' 18.4" W 14654



1.7 AWOIS #4729/4730 - Delete GP [None] 39° 57' 41.0" N 075° 07' 58.5" W 4730

Generated by Pydro v12.3(r3900) on Thu Jun 28 15:41:42 2012 [UTC]

1 - DR_AWOIS

1.1) AWOIS #9998 - AWOIS 9998 - disproval

No Primary Survey Feature for this AWOIS Item

Search Position: 39° 58' 22.9" N, 075° 05' 28.2" W

Historical Depth: [None]

Search Radius: 75

Search Technique: S2,MB,ES

Technique Notes: [None]

History Notes:

H9886/80--NOAA AHP; LOCATED AN UNCHARTED OBSTRUCTION (DREDGE PIPE) IN LAT.39/58/22.5N, LONG. 075/05/29.5W (NAD27). THIS OBSTRUCTION IS SHOWN ON THE SMOOTHSHEET AND WAS CHARTED FROM THIS SURVEY AS A VISIBLE PIPE. (ENTERED 12/97 BY MBH)

Survey Summary

Charts Affected: 12313_1, 12312_1, 13003_1, 14500_1

Remarks:

AWOIS #9998 was assigned a 75m search radius, which could not be fully covered by MBES due to thesurvery vessels draft. MBES data was collected to the extent possible, and the entire search radius wasensonified by 200% Side Scan Sonar coverage.

Feature CorrelationSource Feature Range Azimuth Status

AWOIS_EXPORT AWOIS # 9998 0.00 000.0 Primary

Hydrographer Recommendations

The hydrographer recommends AWOIS #9998 be removed from the chart.

S-57 Data

Geo object 1: Cartographic symbol ($CSYMB)

Attributes: INFORM - AWOIS 9998

Appendix III - AWOIS 1 - DR_AWOIS

Page 3

Office Notes

SAR: Survey coverage meets AWOIS search radius requirement. Uncharted AWOIS feature disprovedby a mixture of partial Object Detection MBES and 200% SSS.

Compile: No cartographic change; feature is not charted.


Page 4

1.2) AWOIS 14653 - 32ft OBSTRN

Primary Feature for AWOIS Item #14653


Historical Depth: 9.45 m

Search Radius: 50



History Notes:

S-D903-RU-03, F00490; 31ft obstruction, 39-58-25.24N, 75-05-42.74W. (Entered 8/11/09 KAK)

Survey Summary

Survey Position: 39° 58' 24.9" N, 075° 05' 43.0" W

Least Depth: 9.71 m (= 31.86 ft = 5.309 fm = 5 fm 1.86 ft)

TPU (±1.96σ): THU (TPEh) ±1.961 m ; TVU (TPEv) ±0.237 m

Timestamp: 2010-184.14:59:31.038 (07/03/2010)

Survey Line: s-d920_bhii_10_philadelphia / bhii_s5401_reson7125_2010 / 2010-184 /032_1459

Profile/Beam: 187/1

Charts Affected: 12313_1, 12312_1, 13003_1, 14500_1

Remarks:

AWOIS #14653 was developed using a 50m search radius, and covered by 100% multibeam using aRESON 7125 MBES. Soundings were then corrected to MLLW and used to create a 0.5m coverage grid.


032_1459 187/1 0.00 000.0 Primary

AWOIS_EXPORT AWOIS # 14653 12.50 213.8 Secondary (grouped)


Page 5


The hydrographer recommends that the 31ft dangerous obstruction symbol and text be deleted from allF00594 raster and electronic charts and replaced with a 25ft dangerous obstruction.

Cartographically-Rounded Depth (Affected Charts):

32ft (12313_1, 12312_1)

5 ¼fm (13003_1, 14500_1)

S-57 Data

Geo object 1: Obstruction (OBSTRN)

Attributes: QUASOU - 6:least depth known

VALSOU - 9.710 m

WATLEV - 3:always under water/submerged

Office Notes

SAR: Survey coverage meets AWOIS search radius requirement. Charted AWOIS feature located atsurvey position by Object Detection MBES. Least depth of feature was re-designated by AHB personnel.

Compile: Delete charted obstruction. Add obstruction at survey position.


Page 6

Feature Images

Figure 1.2.1


Page 7

1.3) AWOIS 4739 - Update




Search Radius: 0

Search Technique: [None]

Technique Notes: Wreck should be visible above MLLW-MHW. Do a visual search.

History Notes:

AWOIS ITEM 4739

HISTORY

H9886/80--OPR-D218-HSB-80; A BARGE IN RUINS WAS FOUND IN LAT

39-58-18.8N, LONG 75-05-29.6W. (ENTERED MSM 6/87)

Survey Summary


Least Depth: [None]

TPU (±1.96σ): THU (TPEh) [None] ; TVU (TPEv) [None]

Timestamp: 1981-001.00:00:00.000 (01/01/1981)

Dataset: F00594_PSS_Import.000

FOID: US 0000114039 00001(02260001BD770001)

Charts Affected: 12313_1, 12312_1, 13003_1, 14500_1

Remarks:

AWOIS item #4739 was visually investigated at low tide. No wreck was visible, however the area iscovered with many broken piles.


F00594_PSS_Import.000 US 0000114039 00001 0.00 000.0 Primary



Page 8


The hydrographer recommends that the charted visible wreck be replaced with charted posts or piles thatcover and uncover.

S-57 Data

Geo object 1: Wreck (WRECKS)

Attributes: QUASOU - 2:depth unknown


Office Notes

SAR: Charted AWOIS feature (stranded wreck) not visually identified by field unit. Wreck may thereforebe submerged, but no sidescan data was acquired. Wreck was not adequately resolved by field unit, andis not considered disproved. Recommend to update wreck as submerged.

Compile: Revise visible wreck to submerged wreck.


Page 9

1.4) AWOIS 14654 - Delete




Search Radius: 50



History Notes:

S-D903-RU-03, F00490; 16ft obstruction, rock, 39-58-9.8N, 75-06-18.5W. (Entered 8/11/09 KAK)

Survey Summary


Least Depth: [None]


Timestamp: 1981-001.00:00:00.000 (01/01/1981)

Dataset: F00594_PSS_Import_03.000

FOID: US 0000173635 00001(02260002A6430001)

Charts Affected: 12313_1, 12312_1, 13003_1, 14500_1

Remarks:

AWOIS #14654 was developed using a 50m search radius, and covered by 100% multibeam using aRESON 7125 MBES. Soundings were then corrected to MLLW and used to create a 0.5m coverage grid.No obstruction was found within the search radius.

NOTE: The buoy block for yellow buoy N "B" was found within the search radius, at position 39° 58'09.8"N, 075° 06' 18.5"W, with a least depth of 20ft. It is not significant.


F00594_PSS_Import_03.000 US 0000173635 00001 0.00 000.0 Primary



Page 10


The hydrographer recommends that the 16ft dangerous obstruction symbol and label be removed on allof F00594 raster and electronic navigation charts.

S-57 Data


Office Notes

SAR: Survey coverage meets AWOIS search radius requirement. Charted AWOIS feature disproved byObject Detection MBES.

Compile: Delete obstruction.


Page 11





Search Radius: 50



History Notes:

S00004/02 -- S-D602-RU-02 (HLS);


Least Depth: 10.07 m

Timestamp: 2002-170.02:27:08.198 (06/19/2002)

Hydrographer Recommendations: chart DToN....PS Lund.

200% Side Scan Sonar coverage and SWMB was acquired over the item. The Hydrographerrecommends charting

the sounding on the obstruction with a least depth of 33 ft. The Hydrographer further recommends thisobstruction

be submitted as a Danger To Navigation (DToN).

Office Notes: Chart 33 Obstn and danger curve.

UPDATED 9/27/2006 JCM

Survey Summary


Least Depth: [None]


Timestamp: 1981-001.00:00:00.000 (01/01/1981)


FOID: US 0000174984 00001(02260002AB880001)

Charts Affected: 12314_2, 12312_1, 13003_1, 14500_1

Remarks:

This feature is an obstruction located just outside the charted channel, and is approximately 2 metersfrom a slope that is shoal of the known depth of the obstruction.


Page 12





The hydrographer recommends that the charted 33ft obstruction be retained, or replaced with a shoalersounding further upslope.

S-57 Data


Office Notes

SAR: Survey coverage meets AWOIS search radius requirement. Charted AWOIS feature located atsurvey position by Object Detection MBES.

Compile: AWOIS feature is positioned on a bridge support and is not navigationally significant. Deleteobstruction.


Page 13





Search Radius: 50

Search Technique: S2, MB, ES

Technique Notes: The limits of the search area is a 50 meter radius, except for the northern partof the radius. The northern limit is of the search area will be the 12 foot curve.

History Notes:

AWOIS ITEM 4422

HISTORY

H9842/79-80--OPR-D218-HFP-78; AN OBSTR HAS BEEN FOUND IN LAT 40-01-03.4N,

LONG 75-02-19.2W. (ENTERED MSM 4/86)

Survey Summary


Least Depth: [None]


Timestamp: 1981-001.00:00:00.000 (01/01/1981)


FOID: US 0000174983 00001(02260002AB870001)

Charts Affected: 12314_2, 13003_1, 14500_1

Remarks:

AWOIS #4422 was assigned a 50m search radius, which could not be fully covered by MBES due to thesurvey vessel's draft. MBES data was collected to the extent possible, and an obstruction with a 12ft leastdepth was detected.





Page 14


The hydrographer recommends that the AWOIS #4422 be modified from the charted 13ft obstruction to a12 ft obstruction.

S-57 Data


Office Notes

SAR: Survey coverage meets the AWOIS search radius requirement to the extent possible. ChartedAWOIS feature located at survey position by Object Detection MBES.

Compile: AWOIS feature is not navigationally significant. Delete obstruction.


Page 15

1.7) AWOIS #4729/4730 - Delete




Search Radius: 50

Search Technique: S2,MB,ES,VS


History Notes:

HISTORY

H9886/80--OPR-D218-HSB-80; A VISIBLE WK (UNCHARTED ON 12312) WAS ì

FOUND IN LAT 39-57-40.6N, LONG 75-08-00.0W; WOODEN WK; 30 X 120FT; ì

5 FT ABOVE MHW. (ENTERED MSM 6/87)

Survey Summary


Least Depth: [None]


Timestamp: 1981-001.00:00:00.000 (01/01/1981)


FOID: US 0000013893 00001(0226000036450001)

Charts Affected: 12313_1, 12312_1, 13003_1, 14500_1

Remarks:

[None]






Page 16


[None]

S-57 Data


Office Notes

SAR: Charted AWOIS feature #4729/4730 (visible wreck) disproved at survey position by visualinspection and SSS. Feature also disproved by orthoimagery (USGS NAIP 1m resolution, acquired July2010).

Compile: Delete wreck.


Page 17

Appendix III - Wrecks

Registry Number: F00594

State: Pennsylvania

Locality: Delaware River

Sub-locality: Marcus Hook

Project Number: S-D920-BH2-10

Survey Dates: 20100622 - 20100726

Charts AffectedNumber Edition Date Scale (RNC) RNC Correction(s)*

12313 52nd 12/01/2008 1:15,000 (12313_1)USCG LNM: 04/28/2009 (06/01/2010)NGA NTM: 04/12/1997 (06/05/2010)

12314 32nd 02/01/2008 1:20,000 (12314_2)USCG LNM: 03/02/2010 (06/01/2010)

NGA NTM: None (06/05/2010)

12312 55th 08/01/2009 1:40,000 (12312_1)USCG LNM: 06/08/2010 (07/06/2010)NGA NTM: 01/24/1998 (07/17/2010)

13003 49th 04/01/2007 1:1,200,000 (13003_1) [L]NTM: ?

14500 27th 10/01/2002 1:1,500,000 (14500_1) [L]NTM: ?

* Correction(s) - source: last correction applied (last correction reviewed--"cleared date")

Features

No. NameFeature

TypeSurveyDepth

SurveyLatitude

SurveyLongitude

AWOISItem

1.1 34ft WRECK Wreck 10.56 m 40° 00' 35.6" N 075° 03' 03.5" W ---



1.4 WRECK - Update Wreck [None] 39° 57' 14.1" N 075° 07' 48.5" W ---




Generated by Pydro v12.3(r3900) on Thu Jun 28 15:39:39 2012 [UTC]

1 - Wrecks

1.1) 34ft WRECK

Survey Summary




Timestamp: 2010-186.13:00:47.262 (07/05/2010)


Profile/Beam: 475/207

Charts Affected: 12314_2, 13003_1, 14500_1

Remarks:

This feature is a 41ft long wreck, with a least depth of 34ft.


004_1300 475/207 0.00 000.0 Primary


The hydrographer recommends charting a 34ft non-dangerous wreck at survey position.


34ft (12314_2)

5 ¾fm (13003_1, 14500_1)

S-57 Data



VALSOU - 10.562 m


Appendix III - Wecks 1 - Wrecks

Page 3

Office Notes

SAR: Uncharted wreck located at survey position by Object Detection MBES. Feature standsapproximately 2.0m above the surrounding seafloor, is about 7.2m long, and is oriented with anapproximate azimuth of 345-165 degrees.

Compile: Add wreck at survey position.


Page 4

Feature Images

Figure 1.1.1


Page 5

Figure 1.1.2


Page 6

1.2) 32ft WRECK

Survey Summary




Timestamp: 2010-186.17:58:31.447 (07/05/2010)



Charts Affected: 12314_2, 13003_1, 14500_1

Remarks:

This feature is an uncharted wreck. The least depth over the vessel is coincident with the currentlycharted sounding.


145_1756 1406/201 0.00 000.0 Primary


The hydrographer recommends retaining the currently charted sounding, in lieu of charting a 32ft wreck.


32ft (12314_2)

5 ¼fm (13003_1, 14500_1)

S-57 Data



VALSOU - 9.758 m



Page 7

Office Notes




Page 8

Feature Images

Figure 1.2.1


Page 9

Figure 1.2.2


Page 10

1.3) 17ft WRECK

Survey Summary




Timestamp: 2010-187.13:11:08.111 (07/06/2010)



Charts Affected: 12314_2, 13003_1, 14500_1

Remarks:

Uncharted wreck identified in F00594 MBES data.


107_1304 4809/154 0.00 000.0 Primary


The hydrographer recommends to chart a 17ft wreck on the affected charts.


17ft (12314_2)

2 ¾fm (13003_1, 14500_1)

S-57 Data



VALSOU - 5.119 m



Page 11

Office Notes




Page 12

Feature Images

Figure 1.3.1


Page 13

Figure 1.3.2


Page 14

1.4) WRECK - Update

Survey Summary


Least Depth: [None]


Timestamp: 1981-001.00:00:00.000 (01/01/1981)


FOID: US 0000173626 00001(02260002A63A0001)

Charts Affected: 12313_1, 12312_1, 13003_1, 14500_1

Remarks:

The visible wreck is not identified in the F00594 MBES bathymetric data. The visible wreck was notidentified by the field team visually.




The hydrographer recommends that the visible wreck is retained.

S-57 Data




Office Notes

SAR: Charted feature (stranded wreck) not observed visually by field unit and not observed inorthoimagery (USGS NAIP 1m resolution, acquired July 2010). The charted feature's position is outside ofMBES coverage. Recommend to update Wreck as Submerged.

Compile: Update feature to submerged.


Page 15

Feature Images

Figure 1.4.1


Page 16

1.5) WRECK - Update

Survey Summary


Least Depth: [None]


Timestamp: 1981-001.00:00:00.000 (01/01/1981)


FOID: US 0000173628 00001(02260002A63C0001)

Charts Affected: 12313_1, 12312_1, 13003_1, 14500_1

Remarks:






S-57 Data




Office Notes




Page 17

Feature Images

Figure 1.5.1


Page 18

1.6) WRECK - Update

Survey Summary


Least Depth: [None]


Timestamp: 1981-001.00:00:00.000 (01/01/1981)


FOID: US 0000173627 00001(02260002A63B0001)

Charts Affected: 12313_1, 12312_1, 13003_1, 14500_1

Remarks:






S-57 Data




Office Notes




Page 19

Feature Images

Figure 1.6.1


Page 20

1.7) WRECK - Update

Survey Summary


Least Depth: [None]


Timestamp: 1981-001.00:00:00.000 (01/01/1981)


FOID: US 0000173629 00001(02260002A63D0001)

Charts Affected: 12313_1, 12312_1, 13003_1, 14500_1

Remarks:






S-57 Data




Office Notes




Page 21

Feature Images

Figure 1.7.1


Page 22

APPROVAL PAGE

F00594

Data meet or exceed current specifications as certified by the OCS survey acceptance review process. Descriptive Report and survey data except where noted are adequate to supersede prior surveys and nautical charts in the common area. The following products will be sent to NGDC for archive

- F00594_DR.pdf - Collection of depth varied resolution BAGS - Processed survey data and records - F00594_GeoImage.pdf

The survey evaluation and verification has been conducted according current OCS Specifications, and the survey has been approved for dissemination and usage of updating NOAA’s suite of nautical charts. Approved:_____________________________________________________________________ LT Abigail Higgins, NOAA Chief, Atlantic Hydrographic Branch