Report_3_Bridge_Inspection_5570-008P.pdf

BRIDGE INSPECTION REPORT

OLD TRACE DRIVE BRIDGE

NATCHEZ TRACE PARKWAY OVER OLD TRACE DRIVE AT JACKS BRANCH

NATCHEZ TRACE PARKWAY

LN

STRUCTURE NO. 5570-008P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 4/6/15

Report prepared by: EU

MILE POINT: 377.39

Federal Highway Administration KILOMETER POINT: 607.33 Federal Lands Bridge Office Bridge Inspection and Management Program 21400 Ridgetop Circle Sterling, Virginia 20166 https://bridge.flhd.fhwa.dot.gov

STRUCTURE SUMMARY STRUCTURE NO. 5570-008P

OLD TRACE DRIVE BRIDGE INSPECTION DATE: 4/6/15

BRIDGE IDENTIFICATION AND DESCRIPTION

MAIN SPAN MATERIAL: ....... CONCRETE NO. OF MAIN SPANS:

MAIN SPAN TYPE: ............... FRAME NO. OF APPR. SPANS:

# OF BEAMS, MAIN SPAN: .. 1 STRUCT. TOTAL LENGTH: .. 51.0 FT (15.5 M)

DECK TYPE: ......................... CONCRETE CAST-IN-PLACE MAX. SPAN LENGTH: .......... 43.0 FT (13.1 M) WEARING SURFACE: .......... BITUMINOUS DECK W IDTH: ...................... 33.0 FT (10.1 M) ABUT. FOUNDATIONS: ........ SPREAD FTG ON BEARING MAT'L CURB TO CURB W IDTH: ..... 28.7 FT (8.7 M)

PIER FOUNDATION(S): ........ N/A YEAR BUILT:

ABUTMENT / PIER MAT'L: ... CONCRETE YEAR RECONSTRUCTED: .. N/A

PROJ./PLAN REF. NO: ......... 1G4 / 41923 SKEW ANGLE: ..................... 0 °

NPS ROAD CLASS: .............. 1 - PRINCIPAL PARK ROAD FRACTURE CRITICAL: ........ NO

STRUCTURE HISTORY: ...... 1981-JOINT REPAIR. 2009-PARKWAY RESURFACED.

LOCATION

NATCHEZ TRACE PARKWAY MILE POINT: ..................... 377.39 (KM PT 607.33)

STATE: ................................. TENNESSEE LOCATION: 8.4 MILES TO TN ROUTE 20

FACILITY CARRIED: ............ NATCHEZ TRACE PARKWAY

FEATURE INTERSECTED: .. OLD TRACE DRIVE AT JACKS BRANCH

STRUCTURE EVALUATION SUMMARY

This concrete frame bridge is in good condition overall with only minor problems. These include moderate deterioration of the vertical joint filler, undermining of the approach pavement along the northwest curbline, moderate spalling with exposed rebar on the fifth post of east railing, and missing reflective object marker tape at the southwest parapet end. Also, there are no object markers delineating the bridge along the underpass roadway.

Corrective action should be taken as outlined in this report to prevent the possible development of more serious or costly problems in the future.

INSPECTION TEAM: N. JANSEN, G. GOODLIN

CONDITION ASSESSMENT:

NATHANAEL JANSEN, FIELD TEAM LEADER 703-404-6255

REPORT REVIEW :

CARLOS CASTRO, P.E., FIELD TEAM LEADER 571-434-1546

REPORT APPROVAL: DATE: 8/31/15

JORGOMAI CEESAY, PH.D., P.E., BIP SUPERVISORY ENGINEER 703-404-6244

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5570-008P

A (Critical) - Structure is closed, in imminent danger of collapse, or presents a critical safety hazard.

B (Major) - Structure is seriously deficient or presents a safety hazard, but can remain in service at reduced loads or with frequent inspections.

C (Moderate) - Structure is deficient, functionally obsolete, or requires substantial repairs to prevent a serious deficiency or unsafe condition.

D (Minor) - Structure is generally in good condition. Preventative maintenance may be required.

E (Special) - Structure is under construction or reconstruction.

D226 PRIORITY OF IMPROVEMENT

ITEM

NO.

MAINTENANCE RECOMMENDATIONS

(GENERALLY NOT FLHP ELIGIBLE)

QTY. UNIT COST

UNIT

ESTIMATE

COST

PRELIM.

60.8 CLEAN AND RESEAL VERTICAL EXPANSION JOINTS. 100 LF

222.4 REPAIR UNDERMINING OF APPROACH PAVEMENT IN NORTHWEST CURBLINE. 1 LS

222.7 REPLACE TYPE 3 REFLECTIVE OBJECT MARKER TAPE AT SOUTHWEST PARAPET

END. INSTALL TYPE 3 REFLECTIVE OBJECT MARKERS FOR UNDERPASS

ROADWAY.

5 EA

58.6 CLEAN AND SEAL EXPOSED REBAR ON FIFTH POST OF EAST RAILING WITH

APPROVED PROTECTIVE COATING.

1 LS

PRELIM. MAINTENANCE TOTAL :

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS) QTY. UNIT UNIT

COST ESTIMATES

PRELIM. COST

REHAB. RECONSTR.

PRELIM. REHABILITATION/RECONSTRUCTION TOTAL :

COST ESTIMATE SUMMARY

PRELIM. MAINTENANCE TOTAL:

PRELIM. REHABILITATION TOTAL:

PRELIM. RECONSTRUCTION TOTAL: ...

TOTAL ITEMIZED COSTS:

$0

PRELIMINARY ESTIMATE TOTAL* :

(*Includes typical contract costs for mobilization, traffic control, and design/construction engineering; but does not include detour bridges, work beyond the bridge limits, or work not listed above. Estimates are approximate and are for preliminary planning purposes only; they should not be used as a complete or final engineers estimate.)

REMARKS: Cost estimates assume that recommended actions will be combined with similar work being performed on other structures.

FIELD INSPECTION REPORT STRUCTURE NO. 5570-008P

G = GOOD (CODES 7 - 9) F = FAIR (CODES 5 - 6) P = POOR (CODES 0 - 4)

CONDITION RATING CODE EQUIVALENTS FOR SUB-ELEMENTS

SERIOUS CONDITION - loss of section, deterioration, spalling, or scour have seriously affected primary structural components. Local failures are possible.

Fatigue cracks in steel or shear cracks in concrete may be present.

CRITICAL CONDITION - advanced deterioration of primary structural elements. Fatigue cracks in steel or shear cracks in concrete may be present or scour may have removed substructure support. Unless closely monitored it may be necessary to close the structure until corrective action can be taken.

“IMMINENT” FAILURE CONDITION - major deterioration or section loss present in critical structural components or obvious vertical or horizontal movement affecting structure stability. Structure is closed to traffic but corrective action may return structure to light service.

FAILED CONDITION - out of service; beyond corrective action.

CONDITION RATING CODES FOR ITEMS 58 - 62, 222, 223

NOT APPLICABLE

EXCELLENT CONDITION

VERY GOOD CONDITION - no problems noted.

GOOD CONDITION - some minor problems.

SATISFACTORY CONDITION - structural elements show some minor deterioration.

FAIR CONDITION - all primary structural elements are sound but may have minor section loss, cracking, spalling, or scour.

POOR CONDITION - advanced section loss, deterioration, spalling, or scour.

N

58. DECK ITEM REFERENCE AND REMARKS

OTHER

ALIGNMENT

DEFLECTION AND/OR VIBRATION

FASCIA(E)

DIAPHRAGMS AND BRACING

TRUSSES

FLOOR BEAMS AND STRINGERS

ARCH(ES) OR SLAB(S)

GIRDERS OR BEAMS

BEARING DEVICES

59. SUPERSTRUCTURE

OTHER

DEFLECTION AND/OR VIBRATION

UTILITIES

DRAINS AND DRAINAGE

PARAPETS AND/OR RAILINGS

CURBS, SIDEWALKS, AND MEDIAN

RIDEABILITY

WEARING SURFACE

EXPANSION JOINTS

DECK SLAB

ABUTMENTS

60. SUBSTRUCTURE

1.

10.

2.

3.

4.

5.

6.

7.

8.

9.

10.

9.

8.

7.

6.

5.

4.

3.

2.

1.

PAINT

11.

(UNDERPASS)

N N G N N N N N G

N G

G G G F G N

G

N

G

G

58.1, 59.3 MINOR EFFLORESCENCE ALONG LONGITUDINAL CONSTRUCTION

JOINT ON DECK UNDERSIDE. MINOR VINE GROWTH ON DECK

UNDERSIDE. MINOR CRACKING WITH EFFLORESCENCE ON EAST

SIDE OF DECK AT RAILING POST AREAS. MINOR POPOUTS ON EAST

AND WEST SIDE OF DECK SLAB.

58.3, 222.4 MINOR LONGITUDINAL CRACKING OF PAVEMENT OVER

STRUCTURE. MINOR TRANSVERSE CRACKING OF PAVEMENT OVER

BOTH ABUTMENTS.

58.5 MINOR VEGETATION GROWTH ALONG CURBLINE.

58.6 MINOR SPALLING OF FOURTH POST OF EAST RAILING. MODERATE

SPALLING WITH EXPOSED REBAR ON FIFTH POST OF EAST RAILING,

EXTERIOR SIDE. MINOR SPALL FROM COLLISION DAMAGE ON

SOUTHWEST PARAPET.

58.10 RAVELING OF EDGE OF ASPHALT OF UNDERPASS ROADWAY.

60.1,6 MINOR SPALLING ON NORTH ABUTMENT BREASTWALL AT BOTH

CORNERS. MINOR CRACKING OF BREASTWALLS.

MINOR PEELING OF PAINT ON BREASTWALLS

60.6 MINOR CRACKING WITH EFFLORESCENCE ON ALL WINGWALLS.

60.7 WEEP HOLES IN NORTH ABUTMENT ARE PARTIALLY CLOGGED.

60.8 MODERATE DETERIORATION OF VERTICAL EXPANSION JOINT

FILLER BETWEEN CONCRETE FRAME AND WINGWALLS.

BREASTWALLS OR COLUMNS 1. G

PILE BENTS 2. N

CAPS AND/OR BEARING SEATS 3. G

BACKWALLS AND/OR BULKHEADS4. N

FOUNDATIONS 5. N

WINGWALLS 6. G

WEEP HOLES7. G

EXPANSION JOINTS 8. F

EROSION AND/OR SCOUR9. G

SETTLEMENT OR DEFLECTION10. G

SLOPE PROTECTION11. N

OTHER12. N

PIER(S)

N13. WALLS AND/OR COLUMNS

N14. PILE BENTS

N15. CAPS AND/OR BEARING SEATS

N16. FOUNDATIONS

N17. EROSION AND/OR SCOUR

N18. SETTLEMENT OR DEFLECTION

N19. OTHER

INSPECTION DATE: 4/6/15

STRUCTURE NO. 5570-008P FIELD INSPECTION REPORT

OLD TRACE DRIVE BRIDGE

ITEM REFERENCE AND REMARKS

AVERAGE CLEAR OPENING8.

NORMAL VELOCITY 7.

ADEQUACY OF OPENING6.

OTHER 5.

WATERWAY OBSTRUCTIONS 4.

CHANNEL PROTECTION3.

EROSION AND/OR SCOUR2.

1. ALIGNMENT

61. CHANNEL 8

G G G G N

HIGH

SUFF

12 FT.

9. STREAM BED COMPOSITION :

GRAVEL, SILT

222. APPROACHES 7

OTHER9.

ALIGNMENT8.

SIGNS7.

SETTLEMENT6.

EROSION5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS2.

1. APPROACH SLABS N

N N G G G F G N

223. RETAINING WALL N

OTHER6.

SETTLEMENT OR DEFLECTION5.

EROSION AND/OR SCOUR4.

FOUNDATION3.

WEEP HOLES2.

1. WALL

36. TRAFFIC AND SAFETY FEATURES

APPROACH GUARDRAIL ENDS D.

APPROACH GUARDRAILS C.

TRANSITIONS B.

BRIDGE RAILINGSA. 1

N N N

61.3 MINOR UNDERMINING, UP TO 24", OF TOE PROTECTION AT SOUTH

ABUTMENT, WEST SIDE.

222.4 HOLE ALONG CURB IN APPROACH PAVEMENT ALONG WEST

CURBLINE AT NORTH APPROACH, APPROXIMATELY 5"' LONG WITH

POSSIBLE UNDERMINING.

222.5 MINOR EROSION OF NORTHEAST SLOPE.

222.6 MINOR SETTLEMENT AT APPROACHES AND AT END OF FRAME.

222.7 TYPE 3 OBJECT MARKER TAPE IS MISSING FROM SOUTHWEST AND

NORTHEAST PARAPET ENDS. TYPE 3 REFLECTIVE OBJECT

MARKERS NOT PROVIDED ALONG UNDERPASS ROADWAY.

TRAFFIC SAFETY RATING CODES

N

Does not meet standards or a safety feature is required and none is provided.

Meets currently acceptable standards.

Not applicable or a safety feature is not required.

STRUCTURE LOAD RATING STRUCTURE NO. 5570-008P

TRUCK TYPE

INVENTORY RATING (NORMAL TRAFFIC) OPERATING RATING (MAXIMUM LOAD)

TONS METRIC TONS TONS METRIC TONS

H 15 14 25 23

HS 20 18 34 31

TYPE 3 18 16 31 28

TYPE 3S2 29 26 48 44

TYPE 3-3 35 32 58 53

DESIGN LOADING: H15 (M13.5)

X CAPACITY MEETS OR EXCEEDS DESIGN LOAD

CAPACITY IS LESS THAN DESIGN LOAD

ORIGINAL LOAD RATING CALCULATION APPLICABLE

ORIGINAL LOAD RATING CALCULATION REVISED

DATE OF LOAD RATING CALCULATION:

LOAD RATING CONTROLLED BY:

REMARKS: RATING IS BASED ON DESIGN LOAD OF STRUCTURE.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5570-008P

STRUCTURE IDENTIFICATION

(201) PARK: NATCHEZ TRACE PARKWAY (1) STATE: ....................................... 474 - TENNESSEE (TN)

(202) STRUCTURE NAME: .......... OLD TRACE DRIVE BRIDGE (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............1 - BRIDGE (3) COUNTY CODE: ........................ 101 - LEWIS

(204) STRUCTURE NUMBER: ..... 5570-008P (4) CITY/PLACE CODE:

(205) NPS REGION: .................... 4 - SOUTHEAST (5) INVENTORY ROUTE:

(206) ROUTE CODE NUMBER: ... 1 (6) FEATURES INTERSECTED:....... OLD TRACE DRIVE AT JACKS

(207) ROAD SECTION NO: .......... 008P (7) FACILITY CARRIED: .................. NATCHEZ TRACE PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5570008P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 8.4 MILES TO TN ROUTE 20

(210) OPERATING UNIT: ............. M. LEWIS (10) INV. RTE. - MIN. VERT. CLR: .. 99.99 FT (99.99 M)

(211) PROJECT NO(S): ................ 1G4 (11) MILE POINT: ............................. 377.39 (KM PT 607.33)

(212) DRAWING NUMBERS: ....... 41923 (27) YEAR BUILT:

(21) MAINTAINED BY: ................. 66 - NATIONAL PARK SERVICE (106) YEAR RECONSTRUCTED: .... N/A

(22) OWNER: ............................... 66 - NATIONAL PARK SERVICE (20) TOLL: ........................................ 3 - FREE ROAD

(37) HISTORICAL DESIGNATION: .. 5 - NOT ELIGIBLE

STRUCTURE DESCRIPTION, FOUNDATION, AND DECK TYPE

(43A) MAIN STR. MATERIAL: ..

(43B) MAIN STR. TYPE:

(45) NO. OF MAIN SPANS:

(48) MAX. SPAN LENGTH:

(49) STRUCTURE LENGTH:

(216A) ABUTMENT #1 FDN:

(216B) ABUTMENT #2 FDN:

(217A) PREDOM. PIER FDN.: ..

(217B) SECOND. PIER FDN: ...

(107) DECK TYPE:

1 - CONCRETE

07 - FRAME

43.0 FT (13.1 M)

51.0 FT (15.5 M)

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

6 - N/A

6 - N/A

1 - CONCRETE CAST-IN-PLACE

(44A) APPR. STR. MATERIAL: ........ 0 - OTHER

(44B) APPR. STR. TYPE: ................ 00 - OTHER

(46) NO. OF APPROACH SPANS: .. 0

(108) WEAR SURFACE/PROTECT SYSTEM:

A) TYPE WEARING SURFACE: .. 6 - BITUMINOUS

B) TYPE MEMBRANE: ................. 0 - NONE

C) TYPE PROTECTION: .............. 0 - NONE

(218) IS SALT USED?: ..................... NO

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 2 - H15 (M13.5) (41) LOAD RESTRICTION: ......... R - POSTED (OTHER)

(66) INVENTORY RATING: ...... 20.0 TONS (18.0 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 34.0 TONS (31.0 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 4/15 (91) FREQ. OF INSP: 48 MONTHS (92 / 93) CRITICAL FEATURE INSPECTION (CFI):

(219) ADD. STUDIES NEEDED: N - 0 - NONE (A) FRACTURE CRITICAL: ... NO

INSP. EVERY: MONTHS - LAST INSP. : (220) SPECIAL STUDY TYPE: 0 - NONE

(B) UNDERWATER: .............. NO

(221) SPECIAL STUDY DATE: INSP. EVERY: MONTHS - LAST INSP. :

(C) SPECIAL INSPECTION: .. NO

INSP. EVERY: MONTHS - LAST INSP. :

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5570-008P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(51) CURB TO CURB WIDTH: ........... 28.7 FT (8.7 M) (16) LATITUDE: ............................. 35°24'38.20"

(17) LONGITUDE: ......................... 87°31'09.30"

(19) DETOUR LENGTH: ............... 47 MI (76 KM)

(28A) LANES ON STRUCT:

(28B) LANES UNDER STRUCT: ... 02

(42A) SERVICE ON: ..................... 1 - HIGHWAY

(42B) SERVICE UNDER: .............. 6 - HIGHWAY-WATERWAY

(29) AVG. DAILY TRAFFIC:

(30) YEAR OF ADT:

(114) FUTURE ADT:

(115) YEAR OF FUTURE ADT:

(101) PARALLEL STRUCTURE: ... N - NONE

(38) NAVIGATION CONTROL?: ... 0

(39) VERTICAL CLEARANCE: ...... 0.0 FT (0.0 M)

(40) HORIZ. CLEARANCE: ........... 0.0 FT (0.0 M)

(111) ABUT. OR PIER PROT:

LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 4.0 FT (1.2 M)

(56) LEFT: ......................... 0.0 FT (0.0 M)

CONDITION AND APPRAISAL DATA, PROPOSED IMPROVEMENTS, AND COST

(58) DECK:

(59) SUPERSTRUCTURE:

(60) SUBSTRUCTURE:

(61) CHANNEL:

(62) CULVERT: ........................... N

(222) APPROACHES:

(223) RETAINING WALL: ........... N

(36) TRAFFIC SAFETY FEAT: ... 1NNN

(75A) TYPE OF WORK:

(75B) WORK DONE BY:

(76) IMPROVEMENT LENGTH: ..

(52) DECK WIDTH:

(32) APPR. ROADWAY WIDTH:

(213) APPR. PAVEMENT WIDTH:

LEFT SHOULDER:

RIGHT SHOULDER:

(33) BRIDGE MEDIAN:

(34) SKEW ANGLE:

(35) DECK FLARE?:

(47) TOTAL HORIZ. CLEARANCE:

(50) SIDEWALKS:

LEFT :

RIGHT :

(214) BRIDGE RAIL TYPE:

RAIL CONFIGURATION:

MATERIAL:

DESIGN TYPE:

(215) BRIDGE RAIL HEIGHT:

(53) MIN. VRT. CLEAR. OVER DECK:

(54) MIN. VRT. UNDERCLEARANCE:

33.0 FT (10.1 M)

34.0 FT (10.4 M)

22.0 FT (6.7 M)

6.0 FT (1.8 M)

6.0 FT (1.8 M)

0 - NO MEDIAN

0 °

NO

28.7 FT (8.7 M)

0.0 FT (0.0 M)

0.0 FT (0.0 M)

1 - FULL HEIGHT (NO PARAPE

1 - CONCRETE

1 - CONTINUOUS RAIL

2.42 FT (0.74 M)

99.99 FT (99.99 M)

15.67 FT (4.78 M)

(67) STRUCTURAL EVALUATION:

(68) DECK GEOMETRY:

(69) UNDERCLEARANCES:

(71) WATERWAY ADEQUACY:

(72) APPROACH ALIGNMENT:

(113) SCOUR CRITICAL:

(225) PURPOSE OF IMPROVEMENT:

(226) PRIORITY OF IMPROVEMENT:

(227) MAINTENANCE COST:

(228) REHAB./RECONSTR. COST: ...

(229) CONSTRUCTION COST:

5 - Stable; scour within limits of

1 - MAINTENANCE

D - MINOR

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1981-JOINT REPAIR. 2009-PARKWAY RESURFACED.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

APPENDIX STRUCTURE NO. 5570-008P

PHOTOGRAPHS STRUCTURE NO. 5570-008P

PHOTO #1 - LOOKING SOUTH TOWARD TUPELO

PHOTO #2 - WEST (UPSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW

LOOKING NORTH

PHOTO #4 - TRANSVERSE CRACKING OF

WEARING SURFACE AND MINOR SETTLEMENT

AT NORTH END OF FRAME

PHOTO #5 - TRANSVERSE CRACKING OF

PAVEMENT AND MINOR SETTLEMENT AT

NORTH APPROACH

PHOTO #6 - LONGITUDINAL CRACKING

WEARING SURFACE ALONG EAST EDGE OF

NORTHBOUND LANE

PHOTO #7 - MINOR VEGETATION IN CURBLINE, NORTH END OF EAST

CURB SHOWN

PHOTO #8 - SPALLING WITH EXPOSED REBAR AND CRACKING WITH

EFFLORESCENCE BELOW EAST RAIL POST #5, EXTERIOR SIDE

PHOTO #9 - MISSING REFLECTIVE OBJECT MARKER FROM END OF

SOUTHWEST PARAPET

PHOTO #10 - 5" LONG HOLE ALONG CURB IN NORTH APPROACH

PAVEMENT ALONG WEST CURBLINE; NOTE POSSIBLE UNDERMINING

PHOTO #11 - GENERAL UNDERSIDE VIEW

LOOKING SOUTH

PHOTO #12 - MINOR EFFLORESCENCE ON

UNDERSIDE OF DECK ALONG EAST

CONSTRUCTION JOINT

PHOTO #13 - TYPICAL CRACKING WITH

EFFLORESCENCE ON WINGWALLS,

NORTHEAST WINGWALL SHOWN

PHOTO #14 - SQUEEZING OUT OF VERTICAL

JOINT FILLER, NORTH WEST JOINT SHOWN

PHOTO #15 - UNDERMINING OF SOUTH BANK

PROTECTION

PHOTO #16 - EROSION DITCH AT NORTHEAST

EMBANKMENT

PHOTO #17 - GENERAL VIEW OF UNDERPASS ROADWAY NOTE

ASPHALT RAVELING AT EDGES

PHOTO #18 - LOOKING DOWNSTREAM FROM BRIDGE

PHOTO #19 - LOOKING UPSTREAM FROM BRIDGE