BIR_9500-003P-2019.pdf
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- WA NPS BP OLYM 2019(2) Olym Bridge Preservation
- Solicitation number
- 69056722B000002
About this file
This solicitation is for bridge preservation work at multiple locations within Olympic National Park in Washington State. The firm fixed price contract will be awarded following a sealed bid process. Bids are due by the date specified in the solicitation documents. The work includes preventative and corrective maintenance of various bridges to address issues like cracking, spalling, corrosion and vegetation growth. The solicitation provides plans, specifications and physical data files for the bridges to be preserved. The Department of Transportation Federal Highway Administration is the contracting agency.
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STRUCTURE SUMMARY STRUCTURE NO. 9500-003P
LYRE RIVER BRIDGE (LAKE CRESCENT) INSPECTION DATE: 8/19/19
BRIDGE IDENTIFICATION AND DESCRIPTION
MAIN SPAN MATERIAL:
MAIN SPAN TYPE:
# OF BEAMS, MAIN SPAN: ..
DECK TYPE:
WEARING SURFACE:
ABUT. FOUNDATIONS:
PIER FOUNDATION(S):
ABUTMENT / PIER MAT'L: ...
PROJ./PLAN REF. NO:
NPS ROAD CLASS:
STRUCTURE HISTORY:
CONCRETE CONTINUOUS
BOX GIRDER - SINGLE or SPREAD
CONCRETE CAST-IN-PLACE
NONE
N/A
SPREAD FTG ON BEARING MAT'L
CONCRETE
UNKNOWN / RG2428
2 - CONNECTOR ROAD
NO. OF MAIN SPANS:
NO. OF APPR. SPANS:
STRUCT. TOTAL LENGTH: ..
MAX. SPAN LENGTH:
DECK WIDTH:
CURB TO CURB WIDTH:
YEAR BUILT:
YEAR RECONSTRUCTED: ..
SKEW ANGLE:
FRACTURE CRITICAL:
102.0 FT (31.1 M)
66.0 FT (20.1 M)
19.6 FT (6.0 M)
16.1 FT (4.9 M)
N/A
0 °
NO
LOCATION
OLYMPIC NATIONAL PARK MILE POINT: ..................... 4.10 (KM PT 6.60)
STATE: ................................. WASHINGTON LOCATION: 4.1 MI NW OF JCT HWY 101 (MP 231.8) AND NORTH SHORE RD (STAY TO LEFT AROUND FACILITY CARRIED: ............ LYRE RIVER ROAD
LAKE TAKING RAILROAD TRAIL ROAD)
FEATURE INTERSECTED: .. LYRE RIVER
STRUCTURE EVALUATION SUMMARY
This concrete box girder "bobtail" cantilever bridge is in satisfactory condition overall, and no repairs are required at this time.
Problems include full-height vertical cracking of the sides of the box girder near the pier, at midspan, and at several other locations. The cracking is not considered a serious matter at this time, but will continue to be monitored during future inspection cycles.
Other problems include minor undermining of the cantilevered endwalls. As the endwalls are not designed to bear on the embankment, this is also not considered a serious problem.
INSPECTION TEAM: J. HENSLEY, D. LEHMANN
CONDITION ASSESSMENT:
JORDAN HENSLEY, P.E., FIELD TEAM LEADER 360-619-7910
REPORT REVIEW:
MARCUS MILLER, P.E., BRIDGE INSPECTION ENGINEER 703-404-6252
REPORT APPROVAL: DATE: 3/25/20
JORGOMAI CEESAY, PH.D., P.E., BIP SUPERVISORY ENGINEER 703-404-6244
RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 9500-003P
A (Critical) - Structure is closed, in imminent danger of collapse, or presents a critical safety hazard.
B (Major) - Structure exhibits severe deterioration, presents a safety hazard, or is designated a high priority due to age and/or condition.
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.
ROUTINE MAINTENANCE QTY. UNIT UNIT
COST
PRELIM.
COST
ESTIMATE
PRELIM. MAINTENANCE TOTAL :
ITEM
NO.
REHABILITATION/RECONSTRUCTION
(TYPICALLY NEEDED WITHIN 5 YEARS)
QTY. UNIT
UNIT
COST
PRELIM. COST
ESTIMATES
REHAB. RECONSTR.
PRELIM. REHABILITATION/RECONSTRUCTION TOTAL :
PRELIMINARY ESTIMATE TOTAL* : ........................................... TBD
(*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: No repairs are required at this time.
john.davis
FIELD INSPECTION REPORT STRUCTURE NO. 9500-003P
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 sec ion 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
OTHER
SETTLEMENT OR DEFLECTION
EROSION AND/OR SCOUR
FOUNDATIONS
CAPS AND/OR BEARING SEATS
PILE BENTS
WALLS AND/OR COLUMNS
PIER(S)
OTHER
SLOPE PROTECTION
SETTLEMENT OR DEFLECTION
EROSION AND/OR SCOUR
EXPANSION JOINTS
WEEP HOLES
WINGWALLS
FOUNDATIONS
BACKWALLS AND/OR BULKHEADS
CAPS AND/OR BEARING SEATS
PILE BENTS
BREASTWALLS OR COLUMNS
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.
N F N N N G N N G
F G
((VEGETATION))
N N N G N N N N G G G N
G N N N G G
N(STREAM GAGE)
11.
10.
9.
8.
7.
6.
5.
4.
3.
2.
1.
12.
13.
14.
15.
16.
17.
18.
19.
58.1 MINOR ABRASION WITH EXPOSED AGGREGATE ON DECK SURFACE.
MINOR MAP CRACKING IN SEVERAL LOCATIONS; WIDESPREAD IN
SOUTH SPAN.
MINOR STAINING AND MOSS GROWTH ON FACE AND UNDERSIDE OF
DECK OVERHANGS. MINOR TRANSVERSE CRACKING WITH
EFFLORESCENCE ON UNDERSIDE OF WEST OVERHANG BEYOND
DRIP GROOVE.
58.5 MINOR CRACKING OF CURBS, MAINLY OVER PIERS. MINOR
ACCUMULATION OF DEBRIS WITH MOSS GROWTH ON CURBS AND
IN CURB JOINTS.
58.6 MINOR MOSS GROWTH ON BRIDGE RAILINGS. MODERATE
VEGETATION GROWTH ALONG NORTHEAST AND SOUTHEAST
PARAPET ENDS.
58.7 NO DECK DRAINS PRESENT. BOX GIRDER DRAINS ARE CLEAR.
58.10, 60.19 STREAM GAGE MONITOR PREVIOUSLY ATTACHED TO EAST DECK
SIDE HAS BEEN REMOVED. WATERBORNE PORTION OF GAGE
DISPLACED; LAYING ON BANK AT SOUTH PIER.
59.2 FULL-HEIGHT VERTICAL CRACKS ON BOX GIRDER WEBS NEAR
PIERS, AT MIDSPAN, AND IN SEVERAL OTHER LOCATIONS; MINOR
MAP CRACKING ELSEWHERE.
MINOR TRANSVERSE CRACKING WITH EFFLORESCENCE ON
UNDERSIDE OF BOX GIRDER, EAST SIDE AT MIDSPAN; MINOR
HONEYCOMBING ALSO PRESENT. EXPOSED REBAR WITH RUST
STAINING ON UNDERSIDE IN NORTH SPAN NEAR PIER.
59.11 HEAVY VEGETATION GROWTH ALONG BOTH SIDES OF NORTH AND
SOUTH SPANS.
60.9 MINOR EROSION AT CANTILEVERED ENDWALLS.
N G F G F N
N
N
G
F
FIELD INSPECTION REPORT STRUCTURE NO. 9500-003P
ITEM REFERENCE AND REMARKS
61. CHANNEL 7
1. ALIGNMENT G
2. EROSION AND/OR SCOUR N
3. CHANNEL PROTECTION G
4. WATERWAY OBSTRUCTIONS G
5. OTHER N
6. ADEQUACY OF OPENING SUFF
7. NORMAL VELOCITY MED
8. AVERAGE CLEAR OPENING 7 FT.
9. STREAM BED COMPOSITION :
GRAVEL, ROCK
222. APPROACHES 7
1. APPROACH SLABS
2. RELIEF JOINTS
3. APPROACH GUARDRAIL
4. SURFACING
5. EROSION
6. SETTLEMENT
7. SIGNS
8. ALIGNMENT
9. OTHER (DRAINAGE)
N N N G G G G F G
223. RETAINING WALL N
1. WALL
2. WEEP HOLES
3. FOUNDATION
4. EROSION AND/OR SCOUR
5. SETTLEMENT OR DEFLECTION
6. OTHER
36. TRAFFIC AND SAFETY FEATURES
A. BRIDGE RAILINGS
B. TRANSITIONS
C. APPROACH GUARDRAILS
D. APPROACH GUARDRAIL ENDS
N N N
60.11 RIPRAP SLOPE PROTECTION MOSTLY DISPLACED AT SOUTH BANK.
60.13 MINOR HONEYCOMBING ON SOUTH PIER.
61.2 SEE BRIDGE FILE FOR SCOUR EVALUATION.
222.4 ASPHALT PAVEMENT AT BOTH APPROACHES.
222.7 "ONE LANE BRIDGE" SIGN AT BOTH APPROACHES.
222.8 MODERATE CURVES AT BOTH APPROACHES.
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. 9500-003P
TRUCK TYPE
INVENTORY RATING (NORMAL TRAFFIC) OPERATING RATING (MAXIMUM LOAD)
TONS METRIC TONS TONS METRIC TONS
H 17 15 29 26
HS 23 21 39 35
TYPE 3 22 20 38 34
TYPE 3S2 28 25 47 43
TYPE 3-3 32 29 54 49
DESIGN LOADING: HS20 (MS18)
CAPACITY MEETS OR EXCEEDS DESIGN LOAD
X CAPACITY IS LESS THAN DESIGN LOAD
X ORIGINAL LOAD RATING CALCULATION APPLICABLE
ORIGINAL LOAD RATING CALCULATION REVISED
DATE OF LOAD RATING CALCULATION: 7/16
LOAD RATING CONTROLLED BY: GIRDER WEB
REMARKS: SEE BRIDGE FILE FOR LOAD RATING CALCULATIONS.
STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 9500-003P
STRUCTURE IDENTIFICATION
(201) PARK: OLYMPIC NATIONAL PARK
(202) STRUCTURE NAME: .......... LYRE RIVER BRIDGE (LAKE CRESCENT)
(203) STRUCTURE KIND: ............1 - BRIDGE
(204) STRUCTURE NUMBER: ..... 9500-003P
(205) NPS REGION: .................... 6 - PACIFIC WEST
(206) ROUTE CODE NUMBER: ... 101
(207) ROAD SECTION NO: ..........003P
(208) NPS ROAD CLASS: ............ 2 - CONNECTOR ROAD
(209) WITHIN NPS BNDRY?: .......YES
(210) OPERATING UNIT: ............. PARK
(211) PROJECT NO(S): ................UNKNOWN
(212) DRAWING NUMBERS: ....... RG2428
(21) MAINTAINED BY: ................. 66 - NATIONAL PARK SERVICE
(22) OWNER: ............................... 66 - NATIONAL PARK SERVICE
(1) STATE:
(2) STATE HWY. AGENCY DIST:
(3) COUNTY CODE:
(4) CITY/PLACE CODE:
(5) INVENTORY ROUTE:
(6) FEATURES INTERSECTED:
(7) FACILITY CARRIED:
(8) STATE STRUCTURE NO:
(9) LOCATION:
(10) INV. RTE. - MIN. VERT. CLR: ..
(11) MILE POINT:
(27) YEAR BUILT:
(106) YEAR RECONSTRUCTED:
(20) TOLL:
(37) HISTORICAL DESIGNATION: ..
530 - WASHINGTON (WA)
009 - CLALLAM
168001010
LYRE RIVER
LYRE RIVER ROAD
9500003P0000000
4.1 MI NW OF JCT HWY 101
99.99 FT (99.99 M)
4.10 (KM PT 6.60)
N/A
3 - FREE ROAD
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:
2 - CONCRETE CONTINUOUS
06 - BOX GIRDER - SINGLE or SPREAD
66.0 FT (20.1 M)
102.0 FT (31.1 M)
6 - N/A
6 - N/A
2 - SPREAD FTG ON BEARING MAT'L
2 - SPREAD FTG ON BEARING MAT'L
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: .. 0 - NONE
B) TYPE MEMBRANE: ................. 0 - NONE
C) TYPE PROTECTION: .............. 0 - NONE
(218) IS SALT USED?: ..................... NO
LOAD RATING AND POSTING
(31) DESIGN LOAD: ................. 5 - HS20 (MS18) (41) LOAD RESTRICTION: ......... A - OPEN, NO RESTRICTION
(66) INVENTORY RATING: ...... 23.0 TONS (20.9 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED
(64) OPERATING RATING: ...... 39.0 TONS (35.4 METRIC TONS)
INSPECTION DATES
(90) INSPECTION DATE: 8/19 (91) FREQ. OF INSP: 24 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. 9500-003P
GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA
(16) LATITUDE: ............................. 48°05'41.10"
(17) LONGITUDE: ......................... 123°48'18.90"
(19) DETOUR LENGTH: ............... 20 MI (32 KM)
(28A) LANES ON STRUCT:
(28B) LANES UNDER STRUCT: ... 00
(42A) SERVICE ON: ..................... 1 - HIGHWAY
(42B) SERVICE UNDER: .............. 5 - 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: ....................... 0.0 FT (0.0 M)
(56) LEFT: ......................... 0.0 FT (0.0 M)
(51) CURB TO CURB WIDTH:
(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:
16.1 FT (4.9 M)
19.6 FT (6.0 M)
20.0 FT (6.1 M)
16.0 FT (4.9 M)
2.0 FT (0.6 M)
2.0 FT (0.6 M)
0 - NO MEDIAN
0 °
NO
16.1 FT (4.9 M)
0.0 FT (0.0 M)
0.0 FT (0.0 M)
1 - FULL HEIGHT (NO PARAPE
1 - CONCRETE
1 - CONTINUOUS RAIL
2.38 FT (0.73 M)
99.99 FT (99.99 M)
0.00 FT (0.00 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: ..
(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:
N
5 - Stable; scour within limits of
1 - MAINTENANCE
D - MINOR
TBD
TBD
TBD
ADDITIONAL INFORMATION
(230) STRUCTURE HISTORY:
(231) ADDITIONAL CONSIDERATIONS:
(330) ADDITIONAL CONFIG. INFO.:
SPAN #1 & #3 - LENGTH 17.5', SPAN #2 - LENGTH 67'; TYPE 206 (CIP CONC. BOX)
https://123�48'18.90 https://48�05'41.10 john.davis
APPENDIX STRUCTURE NO. 9500-003P
PHOTOGRAPHS STRUCTURE NO. 9500-003P
PHOTO #1 - LOOKING SOUTH (AHEAD) TOWARD END OF ROAD
FLOW
PHOTO #2 - EAST (UPSTREAM) SIDE
PHOTO #3 - LOOKING NORTH (BACK) TOWARD CITY
PHOTO #4 - WEST (DOWNSTREAM) SIDE
PHOTO #5 - GENERAL TOPSIDE VIEW LOOKING SOUTH
PHOTO #6 - TYPICAL ABRASION WITH EXPOSED AGGREGATE ON DECK
SURFACE ON NORTH SPAN
PHOTO #7 - SPALLING IN DECK SURFACE IN SOUTH SPAN NEAR WEST
CURB
PHOTO #8 - GENERAL UNDERVIEW OF WEST OVERHANG LOOKING
NORTH
PHOTO #9 - GENERAL UNDERVIEW OF EAST OVERHANG LOOKING
NORTH
PHOTO #10 - TYPICAL FULL-HEIGHT CRACKS ON BOX GIRDER WEBS;
WEST SIDE NEAR NORTH ABUTMENT SHOWN
PHOTO #11 - EXPOSED REBAR WITH RUST STAINING ON UNDERSIDE
OF NORTH SPAN NEAR NORTH PIER
PHOTO #12 - TYPICAL FULL-HEIGHT VERTICAL CRACK S ON BOX
GIRDER WEBS, EAST SIDE OVER NORTH PIER
PHOTO #13 - GENERAL UNDERSIDE VIEW OF DECK; SPAN 3 LOOKING
SOUTH TOWARD ENDWALL 2
PHOTO #14 - GENERAL UNDERSIDE VIEW; CENTER SPAN LOOKING
NORTH
PHOTO #15 - GENERAL VIEW ENDWALL 1 AND GENERAL UNDERSIDE
VIEW SPAN 1, NORTH SPAN
PHOTO #16 - GENERAL VIEW PIER 1, NORTH FACE
PHOTO #17 - GENERAL VIEW PIER 1, SOUTH SIDE
PHOTO #18 - GENERAL VIEW PIER 2, NORTH FACE
PHOTO #19 - GENERAL VIEW PIER 2, SOUTH FACE
PHOTO #20 - GENERAL VIEW OF ABUTMENT 2
PHOTO #21 - GENERAL UNDERMINING, ABUTMENT 2
PHOTO #22 - TYPICAL DEBRIS ACCUMULATION ALONG CURBLINES AND
VEGETATION ENCROACHING ON BRIDGE; UPSTREAM RAIL SHOWN,
PICTURE TAKEN LOOKING NORTH
PHOTO #23 - TYPICAL DEBRIS ACCUMULATION ALONG CURBLINES,
DOWNSTREAM RAIL SHOWN, PICTURE TAKEN LOOKING SOUTH
PHOTO #24 - TYPICAL VEGETATION ENCROACHING ON BRIDGE, EAST
(UPSTREAM) RAIL SHOWN AT NORTH END
PHOTO #25 - TYPICAL MOSS GROWTH ON RAILINGS AND CURBS;
WEST SIDE SHOWN, LOOKING NORTH
PHOTO #26 - NORTH APPROACH
PHOTO #27 - SOUTH APPROACH
PHOTO #28 - VIEW FROM BRIDGE LOOKING EAST (UPSTREAM)
PHOTO #29 - VIEW FROM BRIDGE LOOKING WEST (DOWNSTREAM)
PHOTO #30 - EAST UPSTREAM CHANNEL
PHOTO #31 - WEST DOWNSTREAM CHANNEL
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