Bridge_Inspection_Report_5140-076P.pdf

BRIDGE INSPECTION REPORT

BIG PINE CREEK BRIDGE #2

BLUE RIDGE PARKWAY OVER BIG PINE CREEK

BLUE RIDGE PARKWAY

LN

STRUCTURE NO. 5140-076P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 6/9/15

Report prepared by: WU

MILE POINT: 223.05

Federal Highway Administration KILOMETER POINT: 359.04 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. 5140-076P

BIG PINE CREEK BRIDGE #2 INSPECTION DATE: 6/9/15

BRIDGE IDENTIFICATION AND DESCRIPTION

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

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

# OF BEAMS, MAIN SPAN: .. 1 STRUCT. TOTAL LENGTH: .. 55.8 FT (17.0 M)

DECK TYPE: ......................... CONCRETE CAST-IN-PLACE MAX. SPAN LENGTH: .......... 25.5 FT (7.8 M) WEARING SURFACE: .......... BITUMINOUS DECK WIDTH: ...................... 33.7 FT (10.3 M)

ABUT. FOUNDATIONS: ........ UNKNOWN CURB TO CURB WIDTH: ..... 29.7 FT (9.1 M)

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

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

PROJ./PLAN REF. NO: ......... 2A2 / NONE SKEW ANGLE: ..................... 30 °

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

STRUCTURE HISTORY: ...... 1985-JOINT REPAIR.

LOCATION

BLUE RIDGE PARKWAY MILE POINT: ..................... 223.05 (KM PT 359.04)

STATE: ................................. NORTH CAROLINA LOCATION: 1.3 MILES FROM NC ROUTE 1461

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

FEATURE INTERSECTED: .. BIG PINE CREEK

STRUCTURE EVALUATION SUMMARY

This concrete frame bridge is in fair condition overall. The main problem is deterioration of the concrete deck overhangs and the west side of the pier with cracking, spalling, delamination, and efflorescence. Other problems include southward migration of the channel causing erosion and scour at the south abutment and south channel banks, vegetation growth along both curblines, sinkholes in both shoulders of south approach, and a displaced stone at the southwest parapet end.

In addition, installation of a bridge rail system that meets current safety requirements should be considered.

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

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. 5140-076P

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.

222.3 RESET STONE AT SOUTHWEST PARAPET END. 1 CY

58.7 REMOVE VEGETATION GROWTH ALONG CURBLINES. 1 LS

PRELIM. MAINTENANCE TOTAL :

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS) QTY. UNIT UNIT

COST ESTIMATES

PRELIM. COST

REHAB. RECONSTR.

58.1, 59.3, 60.13

REPAIR DETERIORATED CONCRETE ON DECK OVERHANGS AND

WEST SIDE OF PIER TO ORIGINAL DIMENSIONS.

1 LS

61.1,2,3 PLACE ENGINEERED RIPRAP ALONG SOUTH CHANNEL BANK AND

SOUTH ABUTMENT TO STOP CHANNEL MIGRATION AND PREVENT

FURTHER SCOUR.

12 LS

58, 59, 60 CONTRACT COSTS FOR MOBILIZATION, TRAFFIC CONTROL, AND

DESIGN/CONSTRUCTION ENGINEERING.

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

FIELD INSPECTION REPORT STRUCTURE NO. 5140-076P

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.

N N F N N N N N G

N G

G F N G G N

N

N

G

F

58.1, 59.3 MODERATE TO SEVERE CRACKING, DELAMINATION, AND SPALLING

ALONG SIDES OF CONCRETE DECK SLAB WITH EFFLORESCENCE.

MINOR CRACKING WITH EFFLORESCENCE ON UNDERSIDE OF

DECK. THREE PIECES OF TIMBER FORMWORK EMBEDDED IN

UNDERSIDE OF DECK OVER NORTH SPAN.

58.4 MINOR SETTLEMENT OF WEARING SURFACE AT DECK SLAB HAS

BEEN PATCHED TO RAISE GRADE; HOWEVER, VERTICAL

MISALIGNMENT REMAINS, CAUSING ROUGH TRANSITION. POT

HOLES AND DELAMINATION OF WEARING SURFACE IN

SOUTHBOUND LANE OVER STRUCTURE.

58.6 MINOR CRACKING OF PARAPET MASONRY MORTAR JOINTS, SOME

HAVE BEEN REPOINTED, WITH MINOR TO MODERATE MOSS

GROWTH IN JOINTS. STONE AT SOUTHWEST PARAPET END IS

LOOSE.

58.7 MINOR TO MODERATE VEGETATION GROWTH AND DEBRIS

ACCUMULATION ALONG CURBLINES.

60.1 MINOR CRACKING ON ABUTMENT BREASTWALLS WITH

EFFLORESCENCE. MODERATE SCALING ON SOUTH ABUTMENT

BREASTWALL AT WATERLINE.

60.5,9 MINOR SCOUR EXPOSING FOOTING (4" DEEP X 15' LONG) ON

UPSTREAM SIDE OF SOUTH ABUTMENT DUE TO SHIFTING OF

STREAM (NOT SEEN THIS INSPECTION). EROSION OF SOUTHEAST

STREAM BANK AT SOUTHEAST WINGWALL. 12 INCH DEEP

SINKHOLE IN SHOULDER BEHIND SOUTHWEST WINGWALL AND 9

INCH DEEP SINKHOLE IN SHOULDER BEHIND SOUTHEAST

WINGWALL.

60.6 MINOR TO MODERATE CRACKING OF WINGWALL MASONRY

MORTAR JOINTS WITH MODERATE EFFLORESCENCE AND MINOR

MOSS GROWTH.

BREASTWALLS OR COLUMNS1. G

PILE BENTS 2. N

CAPS AND/OR BEARING SEATS 3. G

BACKWALLS AND/OR BULKHEADS 4. N

FOUNDATIONS 5. G

WINGWALLS 6. G

WEEP HOLES7. N

EXPANSION JOINTS 8. N

EROSION AND/OR SCOUR9. F

SETTLEMENT OR DEFLECTION10. G

SLOPE PROTECTION11. N

OTHER 12. N

PIER(S)

WALLS AND/OR COLUMNS 13. F

PILE BENTS 14. N

CAPS AND/OR BEARING SEATS 15. G

FOUNDATIONS 16. N

EROSION AND/OR SCOUR17. G

SETTLEMENT OR DEFLECTION18. G

OTHER 19. N

FIELD INSPECTION REPORT STRUCTURE NO. 5140-076P

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 F N G N

MED

SUFF

7 FT.

SILT, GRAVEL

222. APPROACHES 7

OTHER 9.

ALIGNMENT8.

SIGNS 7.

SETTLEMENT6.

EROSION5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS2.

1. APPROACH SLABS N

N N 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 N N

60.13 MINOR TO MODERATE DELAMINATION AND SPALLING ON WEST SIDE

OF PIER WITH MODERATE EFFLORESCENCE; MODERATE TO

SEVERE CRACKING AND SCALING AT WATERLINE. MINOR

CRACKING WITH EFFLORESCENCE ON EAST SIDE OF NORTH PIER

FACE. REBAR PROJECTING FROM PIER FOOTING AT WEST END OF

PIER (FROM ORIGINAL CONSTRUCTION). FULL LENGTH VERTICAL

CRACK ON BOTH FACES OF PIER.

61.1 CHANNEL MIGRATING SOUTHWARD; FLOW IS CONCENTRATED

ENTIRELY THROUGH SOUTH SPAN AND AGAINST SOUTH ABUTMENT.

61.2 MINOR EROSION AND SCOUR OF SOUTH CHANNEL BANK AT BOTH

SIDES OF BRIDGE.

61.4 SILT AND SEDIMENT ACCUMULATION IN NORTH SPAN.

222.4,6 MINOR CRACKING ON NORTHBOUND LANE OF NORTH APPROACH.

36.A PARAPET HEIGHT OF 1'-10" DOES NOT MEET CURRENT HEIGHT

REQUIREMENT OF 2'-3" FOR TRAFFIC BARRIERS.

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. 5140-076P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 15 14 25 23

HS 25 23 42 38

TYPE 3 21 19 35 31

TYPE 3S2 31 28 52 47

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. 5140-076P

STRUCTURE IDENTIFICATION

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

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

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

(204) STRUCTURE NUMBER: ..... 5140-076P (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: .......... 076P (7) FACILITY CARRIED: .................. BLUE RIDGE PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5140076P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 1.3 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: ............................. 223.05 (KM PT 359.04)

(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

07 - FRAME

25.5 FT (7.8 M)

55.8 FT (17.0 M)

0 - UNKNOWN

0 - UNKNOWN

0 - UNKNOWN

0 - UNKNOWN

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: ...... 25.2 TONS (22.9 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 42.1 TONS (38.2 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. 5140-076P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 36°29'54.00" (51) CURB TO CURB WIDTH: ........... 29.7 FT (9.1 M)

(17) LONGITUDE: ......................... 80°57'21.10" (52) DECK WIDTH: ............................ 33.7 FT (10.3 M)

(19) DETOUR LENGTH: ............... 25 MI (40 KM) (32) APPR. ROADWAY WIDTH: ........ 29.0 FT (8.8 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: ................ 4.0 FT (1.2 M)

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

(29) AVG. DAILY TRAFFIC: .......... 1347 (34) SKEW ANGLE: ............................ 30 °

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

(114) FUTURE ADT: ..................... 1482 (47) TOTAL HORIZ. CLEARANCE: .... 39.7 FT (12.1 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: ......... 3 - PARAPET ONLY

(111) ABUT. OR PIER PROT: ....... MATERIAL: .............................. 9 - OTHER

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

(55) RIGHT: ....................... 0.0 FT (0.0 M) (215) BRIDGE RAIL HEIGHT: ............ 1.83 FT (0.56 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: ... 0NNN

(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

2 - REHAB/RECONSTRUCTION

C - MODERATE

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1985-JOINT REPAIR.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

APPENDIX STRUCTURE NO. 5140-076P

PHOTOGRAPHS STRUCTURE NO. 5140-076P

PHOTO #1 - LOOKING SOUTHBOUND TOWARD BLOWING ROCK

FLOW

PHOTO #2 - EAST (DOWNSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW LOOKING SOUTH

PHOTO #4 - SETTLEMENT OF APPROACH PAVEMENT, SOUTH

APPROACH PAVEMENT SHOWN, NORTH APPROACH SIMILAR; NOTE

ASPHALT TRANSITION RAMP

PHOTO #5 - MOSS GROWTH AND DEBRIS

ACCUMULATION ALONG EAST CURB

PHOTO #6 - DISPLACED STONE AT

SOUTHWEST PARAPET END

PHOTO #7 - POTHOLES DEVELOPING IN SOUTHBOUND LANE NEAR

SOUTH ABUTMENT

PHOTO #8 - SETTLEMENT HOLE ON SOUTHEAST CORNER SHOULDER

PHOTO #9 - EROSION HOLE DEVELOPING AT SOUTHWEST EDGE OF

DECK

PHOTO #10 - GENERAL UNDERSIDE VIEW LOOKING NORTH IN SOUTH

SPAN; NOTE ALSO CRACKING WITH EFFLORESCENCE

PHOTO #11 - CRACKING WITH EFFLORESCENCE, SPALLING, AND

DELAMINATION ON EAST DECK EDGE NEAR SOUTH END; NOTE SPALL

OVER PIER

PHOTO #12 - TYPICAL CRACKING WITH EFFLORESCENCE, SPALLING,

AND DELAMINATION ON UNDERSIDE OF DECK OVERHANG, EAST DECK

OVERHANG IN SOUTH SPAN SHOWN

PHOTO #13 - TYPICAL CRACKING WITH

EFFLORESCENCE ALONG EAST EDGE OF

DECK OVER NORTH SPAN

PHOTO #14 - TYPICAL CRACKING WITH

EFFLORESCENCE ON UNDERSIDE OF WEST

DECK OVERHANG, NORTH SPAN SHOWN

PHOTO #15 - TYPICAL CRACKING WITH EFFLORESCENCE, SPALLING,

AND DELAMINATION ON WEST EDGE OF DECK, NORTH SPAN SHOWN

PHOTO #16 - CLOSE-UP VIEW OF CRACKING WITH EFFLORESCENCE,

SPALLING, AND DELAMINATION OF WEST EDGE OF DECK IN NORTH

SPAN

PHOTO #17 - CRACKING WITH EFFLORESCENCE, SPALLING, AND

DELAMINATION ON WEST EDGE OF DECK IN SOUTH SPAN

PHOTO #18 - GENERAL VIEW OF SOUTH ABUTMENT

PHOTO #19 - CRACKING WITH EFFLORESCENCE ON WEST FACE OF

SOUTH ABUTMENT

PHOTO #20 - TYPICAL SCALING OF SOUTH ABUTMENT BREASTWALL AT

WATERLINE

PHOTO #21 - GENERAL VIEW OF NORTH ABUTMENT

PHOTO #22 - CRACKING WITH EFFLORESCENCE ON NORTH FACE OF

PIER

PHOTO #23 - GENERAL VIEW OF PIER, SOUTH

FACE SHOWN

PHOTO #24 - TYPICAL FULL HEIGHT VERTICAL

CRACK ON WEST END OF SOUTH PIER FACE,

NORTH PIER FACE SIMILAR

PHOTO #25 - DETERIORATION OF CONCRETE

AND EXPOSED REBAR OUTSIDE OF PIER

WALL, UPSTREAM NOSE OF PIER

PHOTO #26 - EFFLORESCENCE ON EAST END

OF PIER

PHOTO #27 - SPALL AT SOUTHEAST CORNER OF STRUCTURE

PHOTO #28 - DETERIORATED MORTAR JOINT ON NORTHEAST

WINGWALL

PHOTO #29 - TYPICAL CONDITION OF

WINGWALLS, NORTHEAST WINGWALL

SHOWN; NOTE CRACKING AND

EFFLORESCENCE

PHOTO #30 - EROSION AT END OF SOUTH

ABUTMENT AND SOUTHEAST WINGWALL

INTERFACE

PHOTO #31 - EROSION OF SOUTHEAST CHANNEL BANK

PHOTO #32 - DEBRIS ACCUMULATION AT UPSTREAM END OF CENTER

PIER

PHOTO #33 - SCOUR HOLE AT SOUTHWEST CORNER OF SOUTH

ABUTMENT

PHOTO #34 - UPSTREAM CHANNEL; NOTE FLOOD DEBRIS

PHOTO #35 - DOWNSTREAM CHANNEL