Bridge_Inspection_Report_5140-080P.pdf

BRIDGE INSPECTION REPORT

BIG PINE CREEK BRIDGE #6

BLUE RIDGE PARKWAY OVER BIG PINE CREEK

BLUE RIDGE PARKWAY

LN

STRUCTURE NO. 5140-080P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 6/9/15

Report prepared by: WU

MILE POINT: 224.70

Federal Highway Administration KILOMETER POINT: 361.63 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. 5140-080P

BIG PINE CREEK BRIDGE #6 INSPECTION DATE: 6/9/15

BRIDGE IDENTIFICATION AND DESCRIPTION

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

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

# OF BEAMS, MAIN SPAN: .. 1 STRUCT. TOTAL LENGTH: .. 59.5 FT (18.1 M)

DECK TYPE: ......................... CONCRETE CAST-IN-PLACE MAX. SPAN LENGTH: .......... 29.8 FT (9.1 M) WEARING SURFACE: .......... BITUMINOUS DECK WIDTH: ...................... 34.8 FT (10.6 M) ABUT. FOUNDATIONS: ........ SPREAD FTG ON BEARING MAT'L CURB TO CURB WIDTH: ..... 32.3 FT (9.8 M)

PIER FOUNDATION(S): ........ SPREAD FTG ON BEARING MAT'L YEAR BUILT:

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

PROJ./PLAN REF. NO: ......... 2A2 / NONE SKEW ANGLE: ..................... 0 °

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

STRUCTURE HISTORY: ...... 1983-JOINT REPAIR.

LOCATION

BLUE RIDGE PARKWAY MILE POINT: ..................... 224.70 (KM PT 361.63)

STATE: ................................. NORTH CAROLINA LOCATION: 0.3 MILES FROM NC ROUTE 1463

FACILITY CARRIED: ............ BLUE RIDGE PARKWAY

FEATURE INTERSECTED: .. BIG PINE CREEK

STRUCTURE EVALUATION SUMMARY

This concrete slab bridge is in poor condition overall. The main problem is deterioration of the concrete deck slab, with severe cracking, delamination, spalling with exposed and corroded steel reinforcement, and heavy efflorescence present along the sides of the slab.

Other problems include deterioration of the pier, wingwall, and abutment breastwall stone masonry mortar joints;

migration of the channel toward the south, resulting in scour at the south abutment; and settlement and transverse cracking of the asphalt pavement at both approaches, with potholes also present in the north approach pavement. It should also be noted that the bridge railing system does not meet current safety requirements for traffic barriers.

This bridge is scheduled for replacement in the near future under Project BLRI 2A16.

INSPECTION TEAM: M. REGER, H. SALAD

CONDITION ASSESSMENT:

MICHAEL REGER, P.E., FIELD TEAM LEADER 703-948-1424

REPORT REVIEW:

MARCUS MILLER, P.E., SENIOR INSPECTION ENGINEER 703-404-6252

REPORT APPROVAL: DATE: 12/31/15

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5140-080P

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.

B226 PRIORITY OF IMPROVEMENT

ITEM

NO.

MAINTENANCE RECOMMENDATIONS

(GENERALLY NOT FLHP ELIGIBLE)

QTY. UNIT COST

UNIT

ESTIMATE

COST

PRELIM.

PRELIM. MAINTENANCE TOTAL :

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS) QTY. UNIT UNIT

COST ESTIMATES

PRELIM. COST

REHAB. RECONSTR.

58, 59, 60 REPLACE BRIDGE. 1 LS

PRELIM. REHABILITATION/RECONSTRUCTION TOTAL :

COST ESTIMATE SUMMARY

PRELIM. MAINTENANCE TOTAL:

PRELIM. REHABILITATION TOTAL:

PRELIM. RECONSTRUCTION TOTAL: ...

TOTAL ITEMIZED COSTS:

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: Bridge is scheduled for replacement in the near future under Project BLRI 2A16.

FIELD INSPECTION REPORT STRUCTURE NO. 5140-080P

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

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 N P N N N N N G

N G

F N G N N G G N F G N N

F N G G F G N

11.

10.

9.

8.

7.

6.

5.

4.

3.

2.

1.

12.

13.

14.

15.

16.

17.

18.

19.

(CONCRETE FTG)

58.1, 59.3 SEVERE CRACKING WITH EFFLORESCENCE, DELAMINATION, AND

SPALLING WITH EXPOSED STEEL REINFORCEMENT (UP TO 1/16" OF

SECTION LOSS) ALONG EAST FACE OF DECK. SEVERE CRACKING

WITH EFFLORESCENCE, DELAMINATION, AND SPALLING ALONG TOP

OF WEST SIDE OF DECK; NO STEEL REINFORCEMENT EXPOSED.

MINOR CRACKING WITH EFFLORESCENCE ALONG LONGITUDINAL

CONSTRUCTION JOINTS AND OTHER ISOLATED AREAS ON DECK

UNDERSIDE. VOID ON DECK UNDERSIDE (4" L X 1" W X 5" D) IN

NORTHEAST CORNER OF SOUTH SPAN.

58.2 SEVERE DETERIORATION OF EXPANSION JOINT FILLER AT FACE OF

BACKWALLS WITH MODERATE VEGETATION GROWTH IN JOINTS.

58.3 WEARING SURFACE DOES NOT COVER ENTIRE SLAB.

TRANSVERSE CRACKING OF WEARING SURFACE OVER BOTH

ABUTMENTS. VEGETATION GROWTH ALONG EDGES OF WEARING

SURFACE. AREAS OF MINOR LONGITUDINAL CRACKING

DEVELOPING OVER NORTH ABUTMENT.

58.6, 222.3 DELAMINATION AND MINOR SPALLING OF ONE CONCRETE POST ON

EAST RAILING OVER NORTH SPAN; MINOR DELAMINATION OF

REMAINING POSTS. SOME PREVIOUS REPAIRS TO RAIL POSTS ARE

BREAKING UP.

60.1,3,6 MINOR DETERIORATION OF ABUTMENT BREASTWALL AND

WINGWALL MASONRY MORTAR JOINTS WITH EFFLORESCENCE AND

MODERATE VEGETATION GROWTH. MINOR SPALL (6 FEET LONG) AT

SOUTH ABUTMENT BEARING SEAT.

60.5, 61.1 SOUTHWARD CHANNEL MIGRATION; FLOW IS CONCENTRATED

ENTIRELY THROUGH SOUTH SPAN AND ALONG SOUTH ABUTMENT;

HOWEVER, FOOTING IS NOT EXPOSED AT THIS TIME.

60.9 MINOR TO MODERATE CHANNEL BANK SLOUGHING AND MINOR

SCOUR AT UPSTREAM SIDE OF SOUTH ABUTMENT DUE TO

CHANNEL MIGRATION.

60.13,15 MINOR MASONRY MORTAR JOINT DETERIORATION WITH HEAVY

EFFLORESCENCE ON BOTH SIDES OF PIER. MODERATE TO HEAVY

VEGETATION GROWTH ON TOP OF PIER ON EAST SIDE. SOME

JOINTS APPEAR TO HAVE BEEN REPOINTED.

F G N G G N

N

P

G

P

FIELD INSPECTION REPORT STRUCTURE NO. 5140-080P

ITEM REFERENCE AND REMARKS

STREAM BED COMPOSITION : 9.

AVERAGE CLEAR OPENING8.

NORMAL VELOCITY 7.

ADEQUACY OF OPENING6.

OTHER 5.

WATERWAY OBSTRUCTIONS 4.

CHANNEL PROTECTION3.

EROSION AND/OR SCOUR2.

ALIGNMENT1.

61. CHANNEL 6

F G N G N

MED

SUFF

8 FT.

ROCK, SAND, SILT

222. APPROACHES 7

OTHER 9.

ALIGNMENT8.

SIGNS 7.

SETTLEMENT6.

EROSION5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS2.

1. APPROACH SLABS N

N G G G G N G N

223. RETAINING WALL N

OTHER 6.

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. 0

N

60.16,17 SCOUR AT PIER HAS EXPOSED FOOTING (13" L X 13" W X 3" D) AT

DOWNSTREAM SIDE.

222.4,6 MINOR SETTLEMENT WITH MINOR TRANSVERSE CRACKING OF

PAVEMENT AT BOTH APPROACHES. MINOR DETERIORATION OF

NORTH APPROACH PAVEMENT; POTHOLES AT CENTERLINE OF

ROADWAY WITH SOME PATCHING IN PLACE.

222.5 SINKHOLE AREAS DUE TO MINOR EROSION IN WEST SHOULDER

NEAR NORTH ABUTMENT AND AT BOTH SHOULDERS NEAR SOUTH

ABUTMENT AT BRIDGE ENDS.

36.A,C,D RAILING HEIGHT OF 1'-6" DOES NOT MEET CURRENT MINIMUM

HEIGHT REQUIREMENT OF 2'-3" FOR TRAFFIC BARRIERS. RAIL

ENDS ARE NOT TERMINATED SAFELY.

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. 5140-080P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 15 14 25 23

HS 25 22 41 37

TYPE 3 21 19 35 31

TYPE 3S2 31 28 51 46

TYPE 3-3 40 36 67 61

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. 5140-080P

STRUCTURE IDENTIFICATION

(201) PARK: BLUE RIDGE PARKWAY (1) STATE: ....................................... 374 - NORTH CAROLINA (NC)

(202) STRUCTURE NAME: .......... BIG PINE CREEK BRIDGE #6 (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............1 - BRIDGE (3) COUNTY CODE: ........................ 005 - ALLEGHANY

(204) STRUCTURE NUMBER: ..... 5140-080P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 1 (6) FEATURES INTERSECTED:....... BIG PINE CREEK

(207) ROAD SECTION NO: .......... 080P (7) FACILITY CARRIED: .................. BLUE RIDGE PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5140080P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 0.3 MILES FROM NC ROUTE

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

(211) PROJECT NO(S): ................ 2A2 (11) MILE POINT: ............................. 224.70 (KM PT 361.63)

(212) DRAWING NUMBERS: ....... NONE (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:

2 - CONCRETE CONTINUOUS

01 - SLAB

29.8 FT (9.1 M)

59.5 FT (18.1 M)

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

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?: ..................... YES

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 2 - H15 (M13.5) (41) LOAD RESTRICTION: ......... A - OPEN, NO RESTRICTION

(66) INVENTORY RATING: ...... 24.8 TONS (22.5 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 41.3 TONS (37.5 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 6/15 (91) FREQ. OF INSP: 24 MONTHS (92 / 93) CRITICAL FEATURE INSPECTION (CFI):

(219) ADD. STUDIES NEEDED: Y - 1 - DECK SURVEY (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. 5140-080P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 36°29'14.70" (51) CURB TO CURB WIDTH: ........... 32.3 FT (9.8 M)

(17) LONGITUDE: ......................... 80°58'29.10" (52) DECK WIDTH: ............................ 34.8 FT (10.6 M)

(19) DETOUR LENGTH: ............... 25 MI (40 KM) (32) APPR. ROADWAY WIDTH: ........ 30.0 FT (9.1 M)

(28A) LANES ON STRUCT: .......... 02 (213) APPR. PAVEMENT WIDTH: ..... 20.0 FT (6.1 M)

(28B) LANES UNDER STRUCT: ... 00 LEFT SHOULDER: .................. 5.0 FT (1.5 M)

(42A) SERVICE ON: ..................... 1 - HIGHWAY RIGHT SHOULDER: ................ 5.0 FT (1.5 M)

(42B) SERVICE UNDER: .............. 5 - WATERWAY (33) BRIDGE MEDIAN: ....................... 0 - NO MEDIAN

(29) AVG. DAILY TRAFFIC: .......... 1347 (34) SKEW ANGLE: ............................ 0 °

(30) YEAR OF ADT: ...................... 2013 (35) DECK FLARE?: ........................... NO

(114) FUTURE ADT: ..................... 1482 (47) TOTAL HORIZ. CLEARANCE: .... 32.3 FT (9.8 M)

(115) YEAR OF FUTURE ADT: ..... 2033 (50) SIDEWALKS:

(101) PARALLEL STRUCTURE: ... N - NONE LEFT : ...................................... 0.0 FT (0.0 M)

(38) NAVIGATION CONTROL?: ... 0 RIGHT : ................................... 0.0 FT (0.0 M)

(39) VERTICAL CLEARANCE: ...... 0.0 FT (0.0 M) (214) BRIDGE RAIL TYPE:

(40) HORIZ. CLEARANCE: ........... 0.0 FT (0.0 M) RAIL CONFIGURATION: ......... 1 - FULL HEIGHT (NO PARAPE

(111) ABUT. OR PIER PROT: ....... MATERIAL: .............................. 7 - TIMBER

DESIGN TYPE: ........................ 1 - CONTINUOUS RAIL LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 0.0 FT (0.0 M) (215) BRIDGE RAIL HEIGHT: ............ 1.50 FT (0.46 M)

(56) LEFT: ......................... 0.0 FT (0.0 M) (53) MIN. VRT. CLEAR. OVER DECK: 99.99 FT (99.99 M)

(54) MIN. VRT. UNDERCLEARANCE: 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: ... 000N

(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

4 - Stable; action required to pro

2 - REHAB/RECONSTRUCTION

B - MAJOR

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1983-JOINT REPAIR.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

APPENDIX STRUCTURE NO. 5140-080P

PHOTOGRAPHS STRUCTURE NO. 5140-080P

PHOTO #1 - LOOKING SOUTHBOUND TOWARD BLOWING ROCK

FLOW

PHOTO #2 - EAST (DOWNSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW LOOKING SOUTH

PHOTO #4 - DETERIORATION OF NORTH APPROACH PAVEMENT; NOTE

POTHOLES

PHOTO #5 - TYPICAL TRANSVERSE CRACKING OF ASPHALT OVER

ABUTMENTS, NORTH APPROACH SHOWN

PHOTO #6 - LONGITUDINAL CRACKING OF WEARING SURFACE OVER

STRUCTURE

PHOTO #7 - SETTLEMENT OF SOUTH APPROACH PAVEMENT; ALSO

NOTE CRACKING OF APPROACH PAVEMENT

PHOTO #8 - DEBRIS ACCUMULATION, VEGETATION AND MOSS

GROWTH AT EAST CURB; ALSO NOTE SPALLING OF CONCRETE EDGE

OF DECK

PHOTO #9 - TYPICAL APPROACH GUARDRAIL END, NORTHEAST

APPROACH RAIL SHOWN

PHOTO #10 - SINKHOLE BEHIND NORTH ABUTMENT, WEST END

PHOTO #11 - SINKHOLE AT EAST CORNER OF

SOUTH ABUTMENT, SIMILAR AT WEST

CORNER

PHOTO #12 - TYPICAL DETERIORATION OF

DECK SIDES, EAST DECK SIDE AT SOUTH

SPAN SHOWN; NOTE VEGETATION AND MOSS

GROWTH

PHOTO #13 - GENERAL VIEW OF SPALLING WITH EXPOSED STEEL

REINFORCEMENT ON EAST DECK SIDE IN SOUTH SLAB, NEAR PIER

PHOTO #14 - DETERIORATION OF DECK SIDES, EAST DECK SIDE IN

NORTH SPAN SHOWN; ALSO NOTE SPALLING ON RAIL POST

PHOTO #15 - DETERIORATION ALONG EAST EDGE OF DECK WITHIN

NORTH SPAN

PHOTO #16 - SPALLING WITH EXPOSED STEEL REINFORCEMENT ON

EAST DECK SIDE IN NORTH SPAN; NOTE SECTION LOSS OF EXPOSED

STEEL REINFORCEMENT, TWO STIRRUPS MISSING HOOK LEG

PHOTO #17 - SPALLING ON RAILPOST AT EAST

SIDE NEAR NORTH END OF STRUCTURE

PHOTO #18 - TYPICAL DETERIORATION OF

DECK SIDES, WEST DECK SIDE AT PIER

SHOWN

PHOTO #19 - GENERAL UNDERSIDE VIEW OF

NORTH SPAN LOOKING WEST

PHOTO #20 - TYPICAL CRACKING WITH

EFFLORESCENCE ON UNDERSIDE OF EAST

DECK OVERHANG IN NORTH SPAN, WEST SIDE

SIMILAR

PHOTO #21 - LONGITUDINAL CRACKING WITH EFFLORESCENCE ON

UNDERSIDE OF WEST EDGE OF DECK IN NORTH SPAN

PHOTO #22 - EFFLORESCENCE ALONG CONSTRUCTION JOINT IN

SOUTH SPAN

PHOTO #23 - GENERAL VIEW OF NORTH ABUTMENT

PHOTO #24 - GENERAL VIEW OF PIER, SOUTH FACE SHOWN

PHOTO #25 - DETERIORATION OF MASONRY MORTAR JOINTS WITH

EFFLORESCENCE ON EAST END OF PIER, WEST END SIMILAR; ALSO

NOTE VEGETATION GROWTH

PHOTO #26 - SCOUR AND EROSION AT SOUTHEAST CORNER OF PIER

HAS EXPOSED FOOTING

PHOTO #27 - GENERAL VIEW OF SOUTH ABUTMENT

PHOTO #28 - SPALL OF CAP SEAT AT SOUTH ABUTMENT

PHOTO #29 - CRACKING WITH EFFLORESCENCE ON MORTAR JOINTS

AT SOUTH ABUTMENT

PHOTO #30 - SCOUR AT UPSTREAM SIDE OF SOUTH ABUTMENT; NOTE

VEGETATION GROWTH IN MORTAR JOINTS

PHOTO #31 - EROSION ALONG SOUTHWEST

WINGWALL

PHOTO #32 - UPSTREAM CHANNEL, LOOKING

THROUGH SOUTH SPAN

PHOTO #33 - DOWNSTREAM CHANNEL, LOOKING THROUGH SOUTH

SPAN