Birdge_Insp_Rpt_5140-091P.pdf

BRIDGE INSPECTION REPORT

U.S. ROUTE 421 BRIDGE

BLUE RIDGE PARKWAY OVER U.S. ROUTE 421

BLUE RIDGE PARKWAY

LN

STRUCTURE NO. 5140-091P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 6/22/11

Report prepared by: ES

MILE POINT: 276.35

Federal Highway Administration KILOMETER POINT: 444.78 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. 5140-091P

U.S. ROUTE 421 BRIDGE INSPECTION DATE: 6/22/11

BRIDGE IDENTIFICATION AND DESCRIPTION

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

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

# OF BEAMS, MAIN SPAN: .. 1 STRUCT. TOTAL LENGTH: .. 267.4 FT (81.5 M)

DECK TYPE: ......................... CONCRETE CAST-IN-PLACE MAX. SPAN LENGTH: .......... 144.1 FT (43.9 M)

WEARING SURFACE: .......... MODIFIED CONCRETE DECK WIDTH: ...................... 35.6 FT (10.9 M)

ABUT. FOUNDATIONS: ........ SPREAD FTG ON BEARING MAT'L CURB TO CURB WIDTH: ..... 31.6 FT (9.6 M)

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

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

PROJ./PLAN REF. NO: ......... 2F12 / 3013 SKEW ANGLE: ..................... 50 °

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

STRUCTURE HISTORY: ...... 2001-STRUCTURE REPLACED; 2009-DECK SEALED

LOCATION

BLUE RIDGE PARKWAY MILE POINT: ..................... 276.35 (KM PT 444.78)

STATE: ................................. NORTH CAROLINA LOCATION: 15.0 MILES FROM NC ROUTE 16

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

FEATURE INTERSECTED: .. U.S. ROUTE 421

STRUCTURE EVALUATION SUMMARY

This prestressed concrete box girder bridge is in good structural condition. In September 2009, the deck was sealed, correcting several problems including widespread cracking with efflorescence and delamination over the south approach span.

The deterioration in the masonry mortar joints have not changed since the previous inspection. There is heavy efflorescence leaching onto the deck from the east parapet, and the mortar joints in both parapets have minor to moderate cracking and spalling, some over the underpass roadway.

Other problems include moderate erosion inside the south approach span due to leakage through the manhole above, an area of erosion with undermining at the southwest corner of the south approach slab, an area of erosion at the southwest wingwall, minor debris accumulation in the expansion joints, and severe deterioration of the southeast parapet joint sealant. Since the previous inspection, the minor horizontal cracks in the endwalls translating into the sidewalls have increased to .02". Several crack ends were marked and will continue to be monitored for future inspections.

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: R. PARKER, A. HAVARD (VOLKERT, INC.)

CONDITION ASSESSMENT:

RICHARD W. PARKER, 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. 5140-091P

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.

C226 PRIORITY OF IMPROVEMENT

ITEM

NO.

MAINTENANCE RECOMMENDATIONS

(GENERALLY NOT FLHP ELIGIBLE)

QTY. UNIT COST

UNIT

ESTIMATE

COST

PRELIM.

58.6 REPOINT MASONRY MORTAR JOINTS. 500 LF

58.8 INSTALL RUBBER SEAL FOR MANHOLE COVER AT SOUTH APPROACH SPAN. 1 LS

222.5 FILL AND STABILIZE AREA OF EROSION AND UNDERMINING AT SOUTHWEST

CORNER OF SOUTH APPROACH SLAB.

5 CY

58.2 PERIODICALLY REMOVE DEBRIS FROM DECK JOINTS. 1 LF

58.6 CLEAN AND RESEAL SOUTHEAST PARAPET JOINT. 7 LF

60.6 FILL AND STABILIZE EROSION HOLE AT SOUTHWEST WINGWALL. 1 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:

$0 $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. 5140-091P

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.

G G G N N N N G G

N G

P G N F G G

N

G

G

G

58.2 MINOR DEBRIS ACCUMULATION AT JOINT ENDS.

58.3 MODERATE WIDESPREAD CRACKING WITH EFFLORESCENCE AND

ABRASION OF SILICA FUME CONCRETE WEARING SURFACE;

MODERATE TO SEVERE ON NORTH END OF DECK AND

THROUGHOUT SOUTH APPROACH SPAN WITH UP TO 100%

DELAMINATION (SEALED IN SEPT. 2009).

58.6 MINOR VEGETATION GROWTH IN PARAPET MORTAR JOINTS.

MODERATE EFFLORESCENCE FROM MORTAR JOINTS IN EAST

PARAPET LEACHING ON FACE OF STONE AND SURFACE OF DECK.

MINOR TO MODERATE CRACKING AND SPALLING OF MASONRY

MORTAR JOINTS, SOME OVER UNDERPASS ROADWAY. SEVERE

DETERIORATION OF JOINT SEALANT AT SOUTHEAST PARAPET

JOINT; MINOR ELSEWHERE.

58.8, 60.9 MANHOLE IN SOUTH APPROACH SPAN; RUNOFF DRAINS THROUGH

MANHOLE, CAUSING MODERATE TO SEVERE EROSION INSIDE

APPROACH SPAN VAULT.

59.2 MINOR CRACKING WITH EFFLORESCENCE ON UNDERSIDE OF BOX

GIRDER. MINOR TO MODERATE EFFLORESCENCE FROM RING

STONES LEACHING ONTO UNDERSIDE OF BOX GIRDER. TYPICAL

HORIZONTAL CRACKING OF ENDWALLS INSIDE BOX GIRDER UP TO

.02", WITH SOME CRACKS TRANSLATING INTO SIDEWALLS. TYPICAL

RANDOMLY LOCATED HORIZONTAL CRACKS WITH EFFLORESCENCE

ON EXTERIOR WALL OF WEST CELL IN NORTH SPAN. STAINING ON

WEST WALL OF WEST CELL NEAR SOUTH ABUTMENT. MINOR

DIAGONAL CRACKING OF GIRDER #4 IN SOUTH APPROACH SPAN.

59.2,6 ISOLATED AREAS OF MINOR HONEYCOMBING IN INTERIOR WALLS

AND DIAPHRAGMS.

59.8 EROSION HOLE, 2.5'L X 2'W X 1.5'D AT SOUTHWEST WINGWALL.

MINOR TO MODERATE EFFLORESCENCE ON FASCIAE STONES.

BREASTWALLS OR COLUMNS 1. G

PILE BENTS 2. N

CAPS AND/OR BEARING SEATS 3. N

BACKWALLS AND/OR BULKHEADS 4. N

FOUNDATIONS 5. N

WINGWALLS 6. G

WEEP HOLES 7. G

EXPANSION JOINTS 8. G

EROSION AND/OR SCOUR 9. F

SETTLEMENT OR DEFLECTION 10. G

SLOPE PROTECTION 11. N

OTHER 12. N

PIER(S)

G13. WALLS AND/OR COLUMNS

N14. PILE BENTS

G15. CAPS AND/OR BEARING SEATS

G16. FOUNDATIONS

G17. EROSION AND/OR SCOUR

G18. SETTLEMENT OR DEFLECTION

N19. OTHER

INSPECTION DATE: 6/22/11

STRUCTURE NO. 5140-091P FIELD INSPECTION REPORT

U.S. ROUTE 421 BRIDGE

ITEM REFERENCE AND REMARKS

AVERAGE CLEAR OPENING 8.

NORMAL VELOCITY 7.

ADEQUACY OF OPENING 6.

OTHER 5.

WATERWAY OBSTRUCTIONS 4.

CHANNEL PROTECTION 3.

EROSION AND/OR SCOUR 2.

1. ALIGNMENT

61. CHANNEL N

9. STREAM BED COMPOSITION :

222. APPROACHES 7

OTHER 9.

ALIGNMENT 8.

SIGNS 7.

SETTLEMENT 6.

EROSION 5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS 2.

1. APPROACH SLABS

((UNDERPASS ROADWAY)

G N G G F G G G G

223. RETAINING WALL 8

OTHER 6.

SETTLEMENT OR DEFLECTION 5.

EROSION AND/OR SCOUR 4.

FOUNDATION 3.

WEEP HOLES 2.

1. WALL G

G G G G N

36. TRAFFIC AND SAFETY FEATURES

APPROACH GUARDRAIL ENDS D.

APPROACH GUARDRAILS C.

TRANSITIONS B.

BRIDGE RAILINGSA. 1

60.1 MINOR TO MODERATE CRACKING OF BREASTWALLS WITH

EFFLORESCENCE.

60.6 MINOR EFFLORESCENCE FROM WINGWALL MORTAR JOINTS.

60.13 MINOR CRACKING WITH EFFLORESCENCE ON PIER.

222.1 MODERATE MAP CRACKING OF APPROACH SLABS;

EFFLORESCENCE FROM MOST CRACKS.

222.5 AREA OF EROSION 2'L X .5'H WITH UP TO 2.5' OF UNDERMINING AT

SOUTHWEST CORNER OF SOUTH APPROACH SLAB.

222.9 UNDERPASS ROADWAY, US 421, BEING RESURFACED AT TIME OF

INSPECTION.

223.1 BOTH NORTH SIDE WINGWALLS EXTEND APPROXIMATELY 500' AND

ACT AS RETAINING WALLS. SEVERAL LOOSE STONES IN

NORTHWEST RETAINING WALL, 15' NORTH OF NORTH ABUTMENT.

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. 5140-091P

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 64 58

TYPE 3S2 42 38 71 64

TYPE 3-3 45 40 74 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. 5140-091P

U.S. ROUTE 421 BRIDGE INSPECTION DATE: 6/22/11

STRUCTURE IDENTIFICATION

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

(202) STRUCTURE NAME: .......... U.S. ROUTE 421 BRIDGE (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............ 1 - BRIDGE (3) COUNTY CODE: ........................ 189 - WATAUGA

(204) STRUCTURE NUMBER: ..... 5140-091P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 1 (6) FEATURES INTERSECTED:....... U.S. ROUTE 421

(207) ROAD SECTION NO: .......... 091P (7) FACILITY CARRIED: .................. BLUE RIDGE PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5140091P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 15.0 MILES FROM NC ROUTE

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

(211) PROJECT NO(S): ................ 2F12 (11) MILE POINT: ............................. 276.35 (KM PT 444.78)

(212) DRAWING NUMBERS: ....... 3013 (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:

5 - PRESTRESSED CONCRETE

06 - BOX GIRDER - SINGLE or SPREAD

144.1 FT (43.9 M)

267.4 FT (81.5 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: .. 3 - MODIFIED 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. 5140-091P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(51) CURB TO CURB WIDTH: ........... 31.6 FT (9.6 M)

(16) LATITUDE: ............................. 36°13'48.80"

(17) LONGITUDE: ......................... 81°29'59.00"

(19) DETOUR LENGTH: ............... 40 MI (64 KM)

(28A) LANES ON STRUCT:

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

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

(42B) SERVICE UNDER: .............. 1 - HIGHWAY

(29) AVG. DAILY TRAFFIC:

(30) YEAR OF ADT:

(114) FUTURE ADT:

(115) YEAR OF FUTURE ADT:

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

(38) NAVIGATION CONTROL?: ... N

(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: ....................... 5.3 FT (1.6 M)

(56) LEFT: ......................... 9.4 FT (2.9 M)

CONDITION AND APPRAISAL DATA, PROPOSED IMPROVEMENTS, AND COST

(58) DECK:

(59) SUPERSTRUCTURE:

(60) SUBSTRUCTURE:

(61) CHANNEL: .......................... N

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

(222) APPROACHES:

(223) RETAINING WALL:

(36) TRAFFIC SAFETY FEAT: ... 1111

(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:

35.6 FT (10.9 M)

35.0 FT (10.7 M)

22.0 FT (6.7 M)

7.0 FT (2.1 M)

6.0 FT (1.8 M)

0 - NO MEDIAN

50 °

NO

31.6 FT (9.6 M)

0.0 FT (0.0 M)

0.0 FT (0.0 M)

3 - PARAPET ONLY

9 - OTHER

1 - CONTINUOUS RAIL

2.46 FT (0.75 M)

99.99 FT (99.99 M)

21.42 FT (6.53 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:

N

N - Not over waterway.

1 - MAINTENANCE

C - MODERATE

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

2001-STRUCTURE REPLACED; 2009-DECK SEALED

(231) ADDITIONAL CONSIDERATIONS:

ACCESS ABUTMENT SPANS THROUGH SIDEWALK HATCHES.

(330) ADDITIONAL CONFIG. INFO.:

http:81�29'59.00 http:36�13'48.80

APPENDIX STRUCTURE NO. 5140-091P

PHOTOGRAPHS STRUCTURE NO. 5140-091P

PHOTO #1 - LOOKING SOUTHBOUND TOWARD BLOWING ROCK

PHOTO #2 - WEST SIDE

PHOTO #3 - GENERAL TOP SIDE VIEW LOOKING NORTH

PHOTO #4 - GENERAL UNDERSIDE VIEW OF NORTH SPAN LOOKING

NORTH

PHOTO #5 - CRACKING AND ABRASION OF

NORTH APPROACH SLAB

PHOTO #6 - NORTH DECK JOINT; NOTE

DEBRIS ACCUMULATION

PHOTO #7 - CRACKING IN WEARING SURFACE

OF NORTH SPAN

PHOTO #8 - EFFLORESCENCE ALONG EAST

CURBLINE

PHOTO #9 - TYPICAL CRACKING AND SPALLING OF MORTAR JOINTS,

WEST PARAPET SHOWN

PHOTO #10 - MAP CRACKING WITH EFFLORESCENCE OVER PIER

PHOTO #11 - MAP CRACKING IN SOUTH

APPROACH SPAN; NOTE PATCHED CORE

HOLE

PHOTO #12 - SOUTH EXPANSION JOINT; NOTE

DEBRIS ACCUMULATION

PHOTO #13 - GENERAL VIEW OF SOUTH APPROACH SLAB

PHOTO #14 - MAP CRACKING OF SOUTH APPROACH SLAB; NOTE

EFFLORESCENCE

PHOTO #15 - MANHOLE IN SOUTHBOUND LANE OF SOUTH APPROACH

SLAB

PHOTO #16 - EROSION BELOW MANHOLE IN SOUTH APPROACH SPAN

PHOTO #17 - GENERAL UNDERSIDE VIEW OF SOUTH APPROACH SPAN

PHOTO #18 - DIAGONAL CRACK IN BEAM #4 OF SOUTH APPROACH

SPAN

PHOTO #19 - DETERIORATION OF SOUTHEAST

PARAPET JOINT SEALANT

PHOTO #20 - GENERAL VIEW OF NORTHWEST

WINGWALL; NOTE EFFLORESCENCE

PHOTO #21 - GENERAL VIEW OF SOUTHWEST WINGWALL; NOTE

EFFLORESCENCE

PHOTO #22 - EROSION AND UNDERMINING AT SOUTHWEST CORNER

OF SOUTH APPROACH SLAB

PHOTO #23 - EROSION AND UNDERMINING AT SOUTHWEST CORNER

OF SOUTH APPROACH SLAB

PHOTO #24 - GENERAL VIEW OF SOUTHEAST WINGWALL; NOTE

EFFLORESCENCE

PHOTO #25 - EROSION HOLE BEHIND WINGWALL AT SOUTHWEST

CORNER

PHOTO #26 - GENERAL VIEW OF NORTH ABUTMENT

PHOTO #27 - GENERAL VIEW OF BEARING #1 AT NORTH ABUTMENT

PHOTO #28 - GENERAL VIEW OF BEARING #2 AT NORTH ABUTMENT;

NOTE DEBRIS ACCUMULATION

PHOTO #29 - EFFLORESCENCE ON NORTH

ABUTMENT BREASTWALL

PHOTO #30 - EFFLORESCENCE ON EAST RING

STONES IN NORTH SPAN

PHOTO #31 - ACTIVE LEAKAGE ALONG EAST SIDE OF NORTH SPAN

PHOTO #32 - GENERAL VIEW OF PIER

PHOTO #33 - CRACKING WITH

EFFLORESCENCE ON UNDERSIDE OF BOX

GIRDER, EAST SIDE NEAR PIER SHOWN

PHOTO #34 - EFFLORESCENCE FROM EAST

RING STONES ON UNDERSIDE OF BOX

GIRDER AT SOUTH ABUTMENT

PHOTO #35 - GENERAL VIEW OF SOUTH ABUTMENT

PHOTO #36 - HORIZONTAL CRACK IN NORTH ENDWALL TRANSLATES

INTO SIDEWALL OF CENTER CELL OF NORTH SPAN

PHOTO #37 - TYPICAL HORIZONTAL CRACK IN ENDWALLS EXTENDING

INTO SIDEWALLS, EAST CELL OF NORTH ABUTMENT SHOWN

PHOTO #38 - TYPICAL VERTICAL AND HORIZONTAL CRACKING OF

ENDWALL DIAPHRAGMS, NORTH ENDWALL OF CENTER CELL SHOWN

PHOTO #39 - LOOKING SOUTH IN CENTER CELL TOWARD PIER

DIAPHRAGM

PHOTO #40 - TYPICAL CRACKING WITH EFFLORESCENCE ON WEST

SIDEWALL IN WEST CELL OF NORTH SPAN

PHOTO #41 - TYPICAL RANDOMLY LOCATED HORIZONTAL CRACKS

WITH EFFLORESCENCE ALONG EXTERIOR WALL OF WEST CELL IN

NORTH SPAN

PHOTO #42 - TYPICAL HORIZONTAL CRACK IN END DIAPHRAGM OF

WEST CELL OF NORTH ABUTMENT

PHOTO #43 - TYPICAL HORIZONTAL CRACK IN END DIAPHRAGM OF

WEST CELL AT NORTH ABUTMENT

PHOTO #44 - TYPICAL HORIZONTAL CRACKING IN SOUTH ABUTMENT

DIAPHRAGM OF CENTER CELL TRANSLATING INTO SIDEWALL

PHOTO #45 - STAINING ON WEST WALL OF WEST CELL NEAR SOUTH

ABUTMENT

PHOTO #46 - TYPICAL HORIZONTAL CRACK TRANSLATING INTO

SIDEWALL, WEST CELL OF SOUTH SPAN

PHOTO #47 - HORIZONTAL AND VERTICAL CRACKING IN END WALL

DIAPHRAGM EXTENDING INTO SIDEWALLS, EAST CELL IN SOUTH SPAN

SHOWN