Report_Bridge_Inspection_5570-462P.pdf

BRIDGE INSPECTION REPORT

PUBLIC ACCESS ROAD BRIDGE

NATCHEZ TRACE PARKWAY OVER PUBLIC ACCESS ROAD

NATCHEZ TRACE PARKWAY

LN

STRUCTURE NO. 5570-462P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 3/21/13

Report prepared by: ED

MILE POINT: 441.60

Federal Highway Administration KILOMETER POINT: 710.67 Federal Lands Bridge Office Bridge Inspection and Management Program 21400 Ridgetop Circle Sterling, Virginia 20166 http://www.efl.fhwa.dot.gov/FLHBO/BIP

STRUCTURE SUMMARY STRUCTURE NO. 5570-462P

PUBLIC ACCESS ROAD BRIDGE INSPECTION DATE: 3/21/13

BRIDGE IDENTIFICATION AND DESCRIPTION

MAIN SPAN MATERIAL: ....... P/S CONCRETE CONTINUOUS

MAIN SPAN TYPE: ............... STRINGER/MULTI-BEAM or GIRDER

# OF BEAMS, MAIN SPAN: .. 4

DECK TYPE: ......................... CONCRETE CAST-IN-PLACE

WEARING SURFACE: .......... BITUMINOUS

ABUT. FOUNDATIONS: ........ SPREAD FOOTING ON PILES

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

ABUTMENT / PIER MAT'L: ... CONCRETE

PROJ./PLAN REF. NO: ......... 1A1 / NONE

NPS ROAD CLASS: .............. 1 - PRINCIPAL PARK ROAD

STRUCTURE HISTORY: ...... 2008 - ROADWAY STRIPING REPAINTED.

LOCATION

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:

180.0 FT (54.9 M)

90.0 FT (27.4 M)

37.0 FT (11.3 M)

34.0 FT (10.4 M)

N/A 0 °

NO

NATCHEZ TRACE PARKWAY MILE POINT: ..................... 441.60 (KM PT 710.67)

STATE: ................................. TENNESSEE LOCATION: 3.4 MILES FROM NORTHERN TERMINUS

FACILITY CARRIED: ............ NATCHEZ TRACE PARKWAY

FEATURE INTERSECTED: .. PUBLIC ACCESS ROAD

STRUCTURE EVALUATION SUMMARY

This prestressed concrete continuous multi-girder bridge is in good condition overall. Problems include cracking with delamination and spalling with exposed rebar on the closure diaphragms at the pier and on underside of deck between Girders #2 and #3 at the north abutment, both of which appear to have slightly worsened since the previous inspection. Also there is water leakage through the expansion joints onto the abutments, transverse cracking of the approach pavement over the approach slab ends, and missing anchor nuts on the bearings at the north abutment.

Repairs should be made as outlined in this report to prevent the possible development of more serious or costly problems in the future.

INSPECTION TEAM: E.A. JARRELL, A.D. MITCHEM (CLARK NEXSEN)

CONDITION ASSESSMENT:

E.A. JARRELL

REPORT REVIEW:

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

REPORT APPROVAL: DATE: 8/1/13

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5570-462P

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.

222.4 SAW CUT AND SEAL TRANSVERSE CRACKING OF APPROACH PAVEMENT OVER

APPROACH SLAB ENDS.

70 LF

59.1 REPLACE MISSING ANCHOR BOLT NUTS FOR BEARINGS AT NORTH ABUTMENT. 5 EA

58.1,6 CLEAN EXPOSED REBAR ON DECK UNDERSIDE BETWEEN GIRDERS #2 AND #3

AND ON EAST RAIL AT NORTH ABUTMENT AND COAT WITH APPROVED SEALANT.

5 SF

58.2 REMOVE DEBRIS FROM EXPANSION JOINTS. 1 LS

60.3 REMOVE DEBRIS FROM NORTH ABUTMENT BEARING SEAT. 1 LS

58.10, 60.12,19

REMOVE VEGETATION GROWTH FROM AROUND SUBSTRUCTURE. 1 LS

PRELIM. MAINTENANCE TOTAL :

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS) QTY. UNIT UNIT

COST ESTIMATES

PRELIM. COST

REHAB. RECONSTR.

58.2 REPLACE ABUTMENT EXPANSION JOINTS. 70 LF $0

PRELIM. REHABILITATION/RECONSTRUCTION TOTAL : $0

COST ESTIMATE SUMMARY

PRELIM. MAINTENANCE TOTAL:

PRELIM. REHABILITATION TOTAL:

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. 5570-462P

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.

(VEGETATION)

F G N N N F N N G

N G

G N G G N G N N G G G

G(VEGETATION)

G N G N G G

F(VEGETATION)

11.

10.

9.

8.

7.

6.

5.

4.

3.

2.

1.

12.

13.

14.

15.

16.

17.

18.

19.

58.1 MINOR TRANSVERSE CRACKING WITH EFFLORESCENCE ON DECK

UNDERSIDE AND SIDES, AND ON UNDERSIDE OF OVERHANGS NEAR

PIER. MODERATE SPALLING WITH EXPOSED REBAR (3'L X 4"W X

4"D) ON UNDERSIDE OF DECK AT NORTH END BEHIND DIAPHRAGM

BETWEEN GIRDERS #2 AND #3.

58.2 MINOR TO MODERATE DEBRIS ACCUMULATION IN EXPANSION

JOINTS IN SHOULDERS. MINOR LEAKAGE THROUGH EXPANSION

JOINTS ONTO BOTH ABUTMENTS.

58.5 MINOR TRANSVERSE CRACKING WITH EFFLORESCENCE ON

CURBS, MAINLY OVER PIER.

58.6 MINOR SPALL ON EAST RAIL AT NORTH EXPANSION JOINT WITH

EXPOSED REBAR; POSSIBLY AS-BUILT.

58.10, 60.11,12,19

ABUTMENT SLOPES PROTECTED WITH RIPRAP; SEVERAL SMALL

TREES GROWING IN SLOPE PROTECTION. MINOR VINE GROWTH

ON EAST END OF SOUTH ABUTMENT EXTENDING ONTO DECK

UNDERSIDE. SMALL TREES GROWING AROUND COLUMNS AT PIER.

MINOR VINE GROWTH PRESENT ON COLUMNS.

59.1 ALL ANCHOR BOLT NUTS ON BEARING DEVICES AT NORTH

ABUTMENT ARE MISSING EXCEPT GIRDER #4 AND EAST SIDE OF

GIRDER #3.

59.6 MINOR DIAGONAL CRACKING AND MODERATE DELAMINATION

DEVELOPING INTO SPALLS WITH EXPOSED REBAR ON CLOSURE

DIAPHRAGMS OVER PIER ALONG GIRDER EDGES IN SEVERAL

LOCATIONS, APPROXIMATELY 3 SF OF DELAMINATION PER BAY.

60.1,3,4 MINOR VERTICAL CRACKING OF ABUTMENT BREASTWALLS AND

BACKWALLS. MINOR DEBRIS ACCUMULATION ON NORTH

ABUTMENT BEARING SEAT, CENTER BAY. SEE ALSO 58.2.

60.6 MINOR MAP CRACKING WITH EFFLORESCENCE ON WINGWALLS.

G G G G G N

G

F

G

F

FIELD INSPECTION REPORT STRUCTURE NO. 5570-462P

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 8

G G G G N

MED

SUFF

12 FT.

222.4 MINOR LONGITUDINAL CRACKING OF APPROACH PAVEMENT.

MODERATE TRANSVERSE CRACKING OVER APPROACH SLAB ENDS

WITH MINOR VEGETATION GROWTH IN CRACKS.

222.7 TYPE 3 REFLECTIVE OBJECT MARKER TAPE AT CORNERS OF

STRUCTURE.

SILT, STONE

222. APPROACHES 7

OTHER9.

ALIGNMENT8.

SIGNS7.

SETTLEMENT6.

EROSION5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS2.

1. APPROACH SLABS N

N N G G G G G N

223. RETAINING WALL N

OTHER6.

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. 1

N N N

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. 5570-462P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 26 24 43 39

HS 36 33 60 54

TYPE 3 34 31 58 53

TYPE 3S2 42 38 70 64

TYPE 3-3 47 43 78 71

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: 9/99

LOAD RATING CONTROLLED BY: SEE REMARKS

REMARKS: RATING IS BASED ON DESIGN LOAD OF STRUCTURE.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5570-462P

STRUCTURE IDENTIFICATION

(201) PARK: NATCHEZ TRACE PARKWAY (1) STATE: ....................................... 474 - TENNESSEE (TN)

(202) STRUCTURE NAME: .......... PUBLIC ACCESS ROAD BRIDGE (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............1 - BRIDGE (3) COUNTY CODE: ........................ 037 - DAVIDSON

(204) STRUCTURE NUMBER: ..... 5570-462P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 1 (6) FEATURES INTERSECTED:....... PUBLIC ACCESS ROAD

(207) ROAD SECTION NO: .......... 462P (7) FACILITY CARRIED: .................. NATCHEZ TRACE PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5570462P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 3.4 MILES FROM NORTHERN

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

(211) PROJECT NO(S): ................ 1A1 (11) MILE POINT: ............................. 441.60 (KM PT 710.67)

(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:

6 - P/S CONCRETE CONTINUOUS

02 - STRINGER/MULTI-BEAM or GIRDER

90.0 FT (27.4 M)

180.0 FT (54.9 M)

3 - SPREAD FOOTING ON PILES

3 - SPREAD FOOTING ON PILES

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: .. 6 - BITUMINOUS

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

(64) OPERATING RATING: ...... 60.0 TONS (54.4 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 3/13 (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. 5570-462P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(51) CURB TO CURB WIDTH: ........... 34.0 FT (10.4 M) (16) LATITUDE: ............................. 36°01'33.00"

(17) LONGITUDE: ......................... 86°58'31.10"

(19) DETOUR LENGTH: ............... 0 MI (0 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: ....................... 12.0 FT (3.7 M)

(56) LEFT: ......................... 0.0 FT (0.0 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: ..

(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:

37.0 FT (11.3 M)

34.0 FT (10.4 M)

22.0 FT (6.7 M)

6.0 FT (1.8 M)

6.0 FT (1.8 M)

0 - NO MEDIAN

0 °

NO

34.0 FT (10.4 M)

0.0 FT (0.0 M)

0.0 FT (0.0 M)

1 - FULL HEIGHT (NO PARAPE

1 - CONCRETE

1 - CONTINUOUS RAIL

2.58 FT (0.79 M)

99.99 FT (99.99 M)

16.58 FT (5.05 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.

2 - REHAB/RECONSTRUCTION

D - MINOR

$0

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

2008 - ROADWAY STRIPING REPAINTED.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

APPENDIX STRUCTURE NO. 5570-462P

PHOTOGRAPHS STRUCTURE NO. 5570-462P

PHOTO #1 - LOOKING SOUTHBOUND TOWARD TUPELO

FLOW

PHOTO #2 - WEST (UPSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW

LOOKING NORTH

PHOTO #4 - SPALL ON EAST RAIL AT NORTH

EXPANSION JOINT WITH EXPOSED REBAR

PHOTO #5 - TYPICAL DEBRIS ACCUMULATION

IN EXPANSION JOINTS IN SHOULDERS; WEST

SHOULDER OF SOUTH JOINT SHOWN

PHOTO #6 - TYPICAL TRANSVERSE CRACKING

OF APPROACH PAVEMENT OVER APPROACH

SLAB ENDS; NORTH APPROACH SHOWN

PHOTO #7 - GENERAL UNDERSIDE VIEW LOOKING NORTH, NORTH

SPAN

PHOTO #8 - TYPICAL TRANSVERSE CRACKING WITH EFFLORESCENCE

ON DECK UNDERSIDE; NORTH SPAN SHOWN

PHOTO #9 - TYPICAL DELAMINATION

DEVELOPING INTO SPALLS ON CLOSURE

DIAPHRAGMS OVER PIER ALONG GIRDER

EDGES; SOUTH SIDE OF PIER DIAPHRAGM

ADJACENT TO GIRDER #1 SHOWN

PHOTO #10 - TYPICAL DELAMINATION

DEVELOPING INTO SPALLS WITH EXPOSED

REBAR ON CLOSURE DIAPHRAGMS OVER

PIER; NORTH SIDE OF PIER DIAPHRAGM,

ADJACENT TO GIRDER #1 SHOWN

PHOTO #11 - SPALLING WITH EXPOSED REBAR

ON UNDERSIDE OF DECK AT NORTH END

BEHIND DIAPHRAGM BETWEEN GIRDERS #2

AND #3

PHOTO #12 - TYPICAL MAP CRACKING WITH

EFFLORESCENCE ON WINGWALLS;

SOUTHWEST WINGWALL SHOWN

PHOTO #13 - GENERAL VIEW OF SOUTH ABUTMENT

PHOTO #14 - TYPICAL VERTICAL CRACKING OF ABUTMENT

BREASTWALLS; SOUTH ABUTMENT BELOW GIRDER #2 SHOWN

PHOTO #15 - TYPICAL TREES GROWING IN SLOPE PROTECTION; EAST

SIDE OF SOUTH ABUTMENT SHOWN

PHOTO #16 - DEBRIS ACCUMULATION ON NORTH ABUTMENT BEARING

SEAT, CENTER BAY; ALSO NOTE GIRDER #3 MISSING ANCHOR BOLT

NUT

PHOTO #17 - GENERAL VIEW OF PIER, SOUTH SIDE

PHOTO #18 - TYPICAL TREES GROWING AROUND COLUMNS AT PIER;

SOUTH SIDE OF EAST COLUMN SHOWN

PHOTO #19 - DOWNSTREAM CHANNEL

PHOTO #20 - UPSTREAM CHANNEL