Birdge_Insp_Rpt_5140-177P.pdf

BRIDGE INSPECTION REPORT

RAVINE BRIDGE AT MP 302.58

BLUE RIDGE PARKWAY OVER RAVINE & STREAM

BLUE RIDGE PARKWAY

LS

STRUCTURE NO. 5140-177P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 6/23/11

Report prepared by: ED

MILE POINT: 302.58

Federal Highway Administration KILOMETER POINT: 486.97 Federal Lands Bridge Office Bridge Inspection and Management Program 21400 Ridgetop Circle Sterling, Virginia 20166 http://www.efl.fhwa.dot.gov/FLHBO/BIP http://www.efl.fhwa.dot.gov/FLHBO/BIP

STRUCTURE SUMMARY STRUCTURE NO. 5140-177P

RAVINE BRIDGE AT MP 302.58 INSPECTION DATE: 6/23/11

BRIDGE IDENTIFICATION AND DESCRIPTION

MAIN SPAN MATERIAL: ....... P/S CONCRETE CONTINUOUS NO. OF MAIN SPANS:

MAIN SPAN TYPE: ............... BOX GIRDER - SINGLE or SPREAD NO. OF APPR. SPANS:

# OF BEAMS, MAIN SPAN: .. 1 STRUCT. TOTAL LENGTH: .. 446.0 FT (135.9 M)

DECK TYPE: ......................... CONCRETE CAST-IN-PLACE MAX. SPAN LENGTH: .......... 170.0 FT (51.8 M)

WEARING SURFACE: .......... MONOLITHIC CONCRETE DECK WIDTH: ...................... 38.8 FT (11.8 M)

ABUT. FOUNDATIONS: ........ SPREAD FTG ON BEARING MAT'L / OTHE CURB TO CURB WIDTH: ..... 34.5 FT (10.5 M)

PIER FOUNDATION(S): ........ OTHER YEAR BUILT:

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

PROJ./PLAN REF. NO: ......... 2H9 / 2H9 SKEW ANGLE: ..................... 0 °

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

STRUCTURE HISTORY: ...... 2008-TRANSITION SLAB INSTALLED ADJACENT TO APPROACH SLAB TO ALLEVIATE

SETTLEMENT.

LOCATION

BLUE RIDGE PARKWAY MILE POINT: ..................... 302.58 (KM PT 486.97)

STATE: ................................. NORTH CAROLINA LOCATION: 2.38 MILES FROM U.S. ROUTE 22

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

FEATURE INTERSECTED: .. RAVINE & STREAM

STRUCTURE EVALUATION SUMMARY

This prestressed concrete box girder bridge is in good condition overall. Problems include minor cracking with efflorescence on the underside of the deck overhangs, the underside of the box girder, the abutments, and the wingwalls; deterioration of the mortar joints of the masonry wingwalls and parapets; and minor erosion at the base of the south pier.

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: J. THOMAS, R. TAYLOR (VOLKERT, INC.)

CONDITION ASSESSMENT:

JOE THOMAS, P.E., FIELD TEAM LEADER

REPORT REVIEW:

MARCUS MILLER, P.E., LEAD STRUCTURAL ENGINEER 703-404-6252

REPORT APPROVAL: DATE: 12/19/11

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5140-177P

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.

58.6, 60.6, 222.3

REPOINT MORTAR JOINTS OF MASONRY WINGWALLS AND PARAPETS AS

NEEDED.

20 LF

60.17 FILL AND STABILIZE UNDERMINING OF SOUTH PIER COLUMN. 2 CY

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:

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. 5140-177P

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 G N N N N N N G

N G

G N G N N G N N G G N N

G N G G G G N

11.

10.

9.

8.

7.

6.

5.

4.

3.

2.

1.

12.

13.

14.

15.

16.

17.

18.

19.

58.1 MINOR TO MODERATE SCALING IN SEVERAL AREAS. MINOR

CRACKING WITH EFFLORESCENCE ON UNDERSIDE OF

OVERHANGS; SEVERAL CRACKS TRANSLATE INTO ABUTMENT

BREASTWALLS. MINOR LONGITUDINAL CRACKING ON DECK

SURFACE IN SEVERAL LOCATIONS; MINOR MAP CRACKING AT

SOUTH END OF DECK AND IN CORNERS AT NORTH END. MINOR

SPALL ON DECK SURFACE AT SOUTH ABUTMENT, ON NORTHBOUND

LANE. AREA OF DELAMINATION ON END OF SLAB AT SOUTH

ABUTMENT 1' WIDE X 10' LONG.

58.2 POURED JOINTS BETWEEN DECK AND APPROACH SLABS.

58.3,4, 222.4 MODERATE TO SEVERE CRACKING ON PAVEMENT AT BOTH

APPROACHES.

58.5 MINOR VERTICAL CRACKING ON CURBS WITH EFFLORESCENCE.

MINOR SCALING, SPALLING, AND DELAMINATION ON EAST CURB IN

AREAS NEAR RAIL POSTS.

58.6, 60.6, 222.3

CONTINUITY RAIL INSERT ON EAST RAIL NEAR SOUTH PIER IS

MISSING. MINOR TO MODERATE DETERIORATION OF MORTAR

JOINTS WITH EFFLORESCENCE IN WINGWALLS AND APPROACH

PARAPETS.

59.2 MINOR CRACKING WITH EFFLORESCENCE AND MINOR

HONEYCOMBING ON UNDERSIDE OF BOX GIRDER, CENTER SPAN.

MINOR HONEYCOMBING AT CORNER OF BOX GIRDER IN SOUTH

SPAN, WEST SIDE. MINOR DIAGONAL CRACKING ON WEST SIDE OF

BOX GIRDER AT SOUTH ABUTMENT. SEE ALSO 60.1.

INSIDE BOX GIRDER: SOUTH AND CENTER SPANS NOT ACCESSIBLE

BY LADDER. HAIRLINE CRACKING RANDOMLY LOCATED. TWO

MINOR SPALLS ON NORTH PIER DIAPHRAGM. CRACK ON NORTH

ABUTMENT DIAPHRAGMS IN BOTH CELLS.

60.1 MINOR CRACKING WITH EFFLORESCENCE. ONE CRACK AT

NORTHEAST CORNER TRANSLATES INTO EXTERIOR WEB OF BOX

GIRDER. SEE ALSO 58.1.

F F G G G N

N

G

G

F

FIELD INSPECTION REPORT STRUCTURE NO. 5140-177P

ITEM REFERENCE AND REMARKS

STREAM BED COMPOSITION : 9.

AVERAGE CLEAR OPENING 8.

NORMAL VELOCITY 7.

ADEQUACY OF OPENING 6.

OTHER 5.

WATERWAY OBSTRUCTIONS 4.

CHANNEL PROTECTION 3.

EROSION AND/OR SCOUR 2.

ALIGNMENT 1.

61. CHANNEL 8

G G N G N

MED

SUFF

20 FT.

ROCK

222. APPROACHES 7

OTHER 9.

ALIGNMENT 8.

SIGNS 7.

SETTLEMENT 6.

EROSION 5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS 2.

1. APPROACH SLABS F

N G G G G N G N

223. RETAINING WALL N

OTHER 6.

SETTLEMENT OR DEFLECTION 5.

EROSION AND/OR SCOUR 4.

FOUNDATION 3.

WEEP HOLES 2.

1. WALL

36. TRAFFIC AND SAFETY FEATURES

APPROACH GUARDRAIL ENDS D.

APPROACH GUARDRAILS C.

TRANSITIONS B.

BRIDGE RAILINGSA. 1

60.9 MINOR EROSION AT NORTHWEST ABUTMENT/WINGWALL JUNCTION.

60.16,17 MINOR EROSION AND UP TO 2" OF UNDERMINING AT EAST SIDE OF

BASE AT SOUTH PIER EXPOSING STEEL CASING OF DRILLED SHAFT

FOUNDATION.

222.1 MINOR TO MODERATE LONGITUDINAL AND DIAGONAL CRACKING OF

APPROACH SLABS.

222.6 MINOR SETTLEMENT OF ASPHALT IN NORTHBOUND LANE AT NORTH

APPROACH.

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. 5140-177P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 20 18 33 30

HS 36 33 60 55

TYPE 3 39 35 65 59

TYPE 3S2 43 39 71 65

TYPE 3-3 45 41 75 68

DESIGN LOADING: HS20 (MS18)

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. 5140-177P

STRUCTURE IDENTIFICATION

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

(202) STRUCTURE NAME: .......... RAVINE BRIDGE AT MP 302.58 (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............ 1 - BRIDGE (3) COUNTY CODE: ........................ 011 - AVERY

(204) STRUCTURE NUMBER: ..... 5140-177P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 1 (6) FEATURES INTERSECTED:....... RAVINE & STREAM

(207) ROAD SECTION NO: .......... 177P (7) FACILITY CARRIED: .................. BLUE RIDGE PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5140177P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 2.38 MILES FROM U.S. ROUT

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

(211) PROJECT NO(S): ................ 2H9 (11) MILE POINT: ............................. 302.58 (KM PT 486.97)

(212) DRAWING NUMBERS: ....... 2H9 (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:

6 - P/S CONCRETE CONTINUOUS

06 - BOX GIRDER - SINGLE or SPREAD

170.0 FT (51.8 M)

446.0 FT (135.9 M)

2 - SPREAD FTG ON BEARING MAT'L

5 - OTHER

5 - OTHER

5 - OTHER

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: .. 1 - MONOLITHIC CONCRETE

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: ......... R - POSTED (OTHER)

(66) INVENTORY RATING: ...... 36.0 TONS (32.7 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 60.1 TONS (54.5 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 6/11 (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. 5140-177P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 36°05'55.70" (51) CURB TO CURB WIDTH: ........... 34.5 FT (10.5 M)

(17) LONGITUDE: ......................... 81°47'42.40" (52) DECK WIDTH: ............................ 38.8 FT (11.8 M)

(19) DETOUR LENGTH: ............... 10 MI (16 KM) (32) APPR. ROADWAY WIDTH: ........ 28.0 FT (8.5 M)

(28A) LANES ON STRUCT: .......... 02 (213) APPR. PAVEMENT WIDTH: ..... 22.0 FT (6.7 M)

(28B) LANES UNDER STRUCT: ... 00 LEFT SHOULDER: .................. 3.0 FT (0.9 M)

(42A) SERVICE ON: ..................... 1 - HIGHWAY RIGHT SHOULDER: ................ 3.0 FT (0.9 M)

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

(29) AVG. DAILY TRAFFIC: .......... 2000 (34) SKEW ANGLE: ............................ 0 °

(30) YEAR OF ADT: ...................... 2009 (35) DECK FLARE?: ........................... NO

(114) FUTURE ADT: ..................... 2200 (47) TOTAL HORIZ. CLEARANCE: .... 34.5 FT (10.5 M)

(115) YEAR OF FUTURE ADT: ..... 2029 (50) SIDEWALKS:

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

(38) NAVIGATION CONTROL?: ... N 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: ......... 2 - MOUNTED ON PARAPET

(111) ABUT. OR PIER PROT: ....... MATERIAL: .............................. 2 - CONCRETE/ALUMINUM

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

LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 99.9 FT (99.9 M) (215) BRIDGE RAIL HEIGHT: ............ 2.92 FT (0.89 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: ... 1111

(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

N

N - Not over waterway.

1 - MAINTENANCE

D - MINOR

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

2008-TRANSITION SLAB INSTALLED ADJACENT TO APPROACH SLAB TO ALLEVIATE SETTLEMENT.

(231) ADDITIONAL CONSIDERATIONS:

SNOOPER NEEDED TO ACCESS BOX GIRDER HATCHES.

(330) ADDITIONAL CONFIG. INFO.:

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APPENDIX STRUCTURE NO. 5140-177P

PHOTOGRAPHS STRUCTURE NO. 5140-177P

PHOTO #1 - LOOKING NORTHBOUND TOWARD BLOWING ROCK

FLOW

PHOTO #2 - WEST (UPSTREAM) SIDE

PHOTO #3 - GENERAL TOP SIDE VIEW

LOOKING SOUTH

PHOTO #4 - GENERAL UNDERSIDE VIEW OF

CENTER SPAN LOOKING SOUTH

PHOTO #5 - JOINT AT END OF SOUTH

APPROACH SLAB, NOTE TRANSITION

APPROACH SLAB

PHOTO #6 - EFFLORESCENCE ALONG BASE

OF PARAPET, SOUTHWEST APPROACH

SHOWN

PHOTO #7 - TYPICAL CRACKING OF

APPROACH SLAB, SOUTH APPROACH SHOWN

PHOTO #8 - JOINT AT SOUTH ABUTMENT;

NOTE AREA OF DELAMINATION AND SPALL IN

NORTHBOUND LANE

PHOTO #9 - TYPICAL CONDITION OF DECK, CENTER SPAN SHOWN

PHOTO #10 - GENERAL VIEW OF SPALLING AND DELAMINATION OF

FINISH ON CURBS, EAST CURB CENTER SHOWN

PHOTO #11 - TYPICAL SPALLING AND DELAMINATION OF FINISH COAT

ON CURBS, EAST CURB NEAR MIDSPAN SHOWN

PHOTO #12 - TYPICAL NOT FULLY THREADED BOLTS ON RAILS, EAST

RAIL SHOWN

PHOTO #13 - RAIL SLEEVE MISSING FROM EAST SIDE IN CENTER SPAN

PHOTO #14 - TYPICAL SCALING OF DECK OVER PIERS, DECK OVER

NORTH PIER SHOWN

PHOTO #15 - TYPICAL CRACKING OF DECK NEAR ABUTMENT JOINTS,

NORTH ABUTMENT SHOWN

PHOTO #16 - MAP CRACKING ON NORTHEAST CORNER OF DECK,

NORTHWEST CORNER SIMILAR

PHOTO #17 - JOINT AT NORTH ABUTMENT

PHOTO #18 - LONGITUDINAL CRACK ON

NORTH APPROACH SLAB, SOUTH APPROACH

SLAB SIMILAR

PHOTO #19 - JOINT AT END OF NORTH

APPROACH SLAB, NOTE TRANSITION

APPROACH SLAB

PHOTO #20 - JOINT AT PARAPET, NORTHEAST

PARAPET SHOWN

PHOTO #21 - TYPICAL CONDITION OF MORTAR JOINTS, NORTHWEST

APPROACH SHOWN

PHOTO #22 - TYPICAL DETERIORATION OF MORTAR JOINTS,

NORTHWEST WINGWALL SHOWN

PHOTO #23 - GENERAL VIEW OF NORTH ABUTMENT

PHOTO #24 - CRACKING WITH EFFLORESCENCE ON WEST DECK

OVERHANG AT NORTH ABUTMENT

PHOTO #25 - CRACKING ON WEST SIDE OF

NORTH ABUTMENT

PHOTO #26 - CRACKING WITH

EFFLORESCENCE ON EAST SIDE OF BOX

GIRDER AT NORTH ABUTMENT

PHOTO #27 - CRACKING WITH

EFFLORESCENCE ON EAST DECK OVERHANG

AT NORTH ABUTMENT

PHOTO #28 - CRACKING WITH

EFFLORESCENCE ON WEST DECK OVERHANG

IN NORTH SPAN

PHOTO #29 - GENERAL VIEW OF NORTH PIER

PHOTO #30 - GENERAL VIEW OF SOUTH PIER

PHOTO #31 - EROSION AND UNDERMINING AT BASE OF SOUTH PIER,

EAST SIDE

PHOTO #32 - GENERAL VIEW OF SOUTH ABUTMENT

PHOTO #33 - CRACKING WITH EFFLORESCENCE ON WEST DECK

OVERHANG AT SOUTH ABUTMENT

PHOTO #34 - GENERAL VIEW OF CRACKING OF WEST SIDE OF SOUTH

ABUTMENT

PHOTO #35 - CRACKING WITH EFFLORESCENCE ON EAST SIDE OF

SOUTH ABUTMENT

PHOTO #36 - CRACKING WITH EFFLORESCENCE ON EAST DECK

OVERHANG AT SOUTH ABUTMENT

PHOTO #37 - GENERAL VIEW LOOKING NORTH

IN WEST CELL OF NORTH SPAN

PHOTO #38 - TYPICAL CRACKING ABOVE

ACCESS HATCHES, CENTER DIAPHRAGM OF

WEST CELL SHOWN

PHOTO #39 - GENERAL VIEW LOOKING SOUTH IN WEST CELL OF

NORTH SPAN TOWARD NORTH PIER DIAPHRAGM

PHOTO #40 - GENERAL VIEW LOOKING NORTH IN WEST CELL OF

NORTH SPAN TOWARD NORTH ABUTMENT DIAPHRAGM

PHOTO #41 - GENERAL VIEW OF TYPICAL HORIZONTAL CRACKING OF

NORTH ABUTMENT DIAPHRAGM, WEST CELL SHOWN

PHOTO #42 - TYPICAL HORIZONTAL CRACKING OF NORTH ABUTMENT

DIAPHRAGM, WEST CELL SHOWN

PHOTO #43 - GENERAL VIEW LOOKING NORTH IN EAST CELL OF

NORTH SPAN

PHOTO #44 - GENERAL VIEW OF EAST CELL NORTH ABUTMENT

DIAPHRAGM; NOTE HORIZONTAL CRACKING

PHOTO #45 - GENERAL VIEW LOOKING SOUTH IN EAST CELL OF

NORTH SPAN TOWARD NORTH PIER DIAPHRAGM

PHOTO #46 - GENERAL VIEW OF SPALLING AT NORTH PIER

DIAPHRAGM IN EAST CELL, NORTH SPAN

PHOTO #47 - SPALL AT TOP RIGHT OF NORTH PIER DIAPHRAGM IN

EAST CELL, NORTH SPAN

PHOTO #48 - SPALL AT TOP LEFT OF NORTH PIER DIAPHRAGM IN EAST

CELL, NORTH SPAN

PHOTO #49 - UPSTREAM CHANNEL

PHOTO #50 - DOWNSTREAM CHANNEL