Bridge_Inspection_Rpt_STR_5460-011P.pdf

BRIDGE INSPECTION REPORT

LAUREL BRANCH BRIDGE

FIGHTING CREEK GAP ROAD OVER LAUREL BRANCH

GREAT SMOKY MOUNTAINS NATIONAL PARK

LW

STRUCTURE NO. 5460-011P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 5/18/16

SDReport prepared by:

Federal Highway Administration FLH Office of Bridges and Structures 21400 Ridgetop Circle Sterling, VA 20166 703-404-6201 https://bridge.flhd.fhwa.dot.gov http:https://bridge.flhd.fhwa.dot.gov

STRUCTURE NO. 5460 011P

LAUREL BRANCH BRIDGE INSPECTION DATE: 5/18/16

STRUCTURE SUMMARY

BRIDGE IDENTIFICATION AND DESCRIPTION

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

CONCRETE 1

MAIN SPAN TYPE: ............... NO. OF APPR. SPANS: ........ ARCH - DECK 0

# OF BEAMS, MAIN SPAN: .. 1 STRUCT. TOTAL LENGTH: .. 42.5 FT (13.0 M)

DECK TYPE: ......................... NOT APPLICABLE MAX. SPAN LENGTH: .......... 42.5 FT (13.0 M)

WEARING SURFACE: .......... NOT APPLICABLE DECK WIDTH: ...................... 33.5 FT (10.2 M)

ABUT. FOUNDATIONS: ........ SPREAD FTG ON BEARING MAT'L CURB TO CURB WIDTH: ..... 30.0 FT (9.1 M)

PIER FOUNDATION(S): ........ N/A YEAR BUILT:

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

PROJ./PLAN REF. NO: ......... SKEW ANGLE: ..................... 45 °

NPS ROAD CLASS:

3A3, 3B15 / 3039

FRACTURE CRITICAL: ........ NO

STRUCTURE HISTORY: ...... 1996 - PARAPET EXPANSION JOINTS RESEALED.

1 - PRINCIPAL PARK ROAD

LOCATION

GREAT SMOKY MOUNTAINS NATIONAL PARK MILE POINT: ..................... 4.69 (KM PT 7.55)

STATE: ................................. TENNESSEE LOCATION: 0.2 MILES EAST FROM NPS ROUTE 18

(ELKMONT ROAD).

FACILITY CARRIED: ............ FIGHTING CREEK GAP ROAD

FEATURE INTERSECTED: .. LAUREL BRANCH

STRUCTURE EVALUATION SUMMARY

This concrete arch bridge is in good condition overall. Problems include severe deterioration of the joint material with vegetation growing from the vertical joints between wingwalls and fascia, deterioration of the masonry mortar joints, displaced capstones at the north parapet ends, several spalls with exposed rebar in the abutment breastwalls and arch underside, and missing object markers at the bridge approaches. Scour issues include sloughing of the upstream channel banks which has undermined several trees.

It should also be noted that the stream flow is directed primarily toward the west corner of the bridge causing minor scour at the northwest wingwall.

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: G. GOODLIN, H. SALAD

CONDITION ASSESSMENT:

GARY J. GOODLIN, FIELD TEAM LEADER 703-404-6253

REPORT REVIEW:

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

REPORT APPROVAL: DATE: 9/30/16

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5460 011P

226 PRIORITY OF IMPROVEMENT D

A (Critical) - Structure is closed, in imminent danger of collapse, or presents a critical safety hazard.

B (Major) - Structure exhibits severe deterioration, presents a safety hazard, or is designated a high priority due to age and/or condition.

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.

ITEM

NO.

MAINTENANCE RECOMMENDATIONS

(GENERALLY NOT FLHP ELIGIBLE)

QTY. UNIT COST

UNIT

ESTIMATE

COST

PRELIM.

58.2, 60.8 CLEAN AND RESEAL VERTICAL EXPANSION JOINTS BETWEEN WINGWALLS AND

ABUTMENTS AND AT PARAPETS.

60 LF

59.3, 60.1 CLEAN EXPOSED REBAR ON ARCH UNDERSIDE AND EAST ABUTMENT

BREASTWALL, AND COAT WITH APPROVED PROTECTIVE SEALANT.

20 SF

222.7 INSTALL TYPE 3 REFLECTIVE OBJECT MARKERS AT BRIDGE CORNERS. 4 EA

PRELIM. MAINTENANCE TOTAL :

ITEM

REHABILITATION/RECONSTRUCTION

QTY. UNIT

UNIT

COST ESTIMATES

PRELIM. COST

NO (TYPICALLY NEEDED WITHIN 5 YEARS)

REHAB. RECONSTR.

58.6, 59.3, 60.6

REPOINT MASONRY MORTAR JOINTS AS NECESSARY. RESET

LOOSE CAPSTONES AT NORTH PARAPET ENDS.

1 LS

60.9, 61.1,2 REPAIR SLOUGHING ALONG UPSTREAM CHANNEL BANKS AND

PLACE ENGINEERED RIPRAP ALONG WEST ABUTMENT TO DIRECT

CHANNEL FLOW TOWARD CENTER OF SPAN.

1 LS

CONTRACT COSTS FOR MOBILIZATION, TRAFFIC CONTROL, AND

DESIGN CONSTRUCTION ENGINEERING (70% TOTAL REHAB COST)

PLUS PARK LOCATION FACTOR.

1 LS

PRELIM. REHABILITATION/RECONSTRUCTION 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. 5460 011P

CONDITION RATING CODES FOR ITEMS 58 - 62, 222, 223

N

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.

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 CODE EQUIVALENTS FOR SUB-ELEMENTS

G = GOOD (CODES 7 - 9) F = FAIR (CODES 5 - 6) P = POOR (CODES 0 - 4)

58. DECK N

DECK SLAB1. N

EXPANSION JOINTS2. P

WEARING SURFACE3. G

RIDEABILITY4. G

CURBS, SIDEWALKS, AND MEDIAN 5. N

PARAPETS AND/OR RAILINGS6. G

DRAINS AND DRAINAGE7. G

UTILITIES8. N

DEFLECTION AND/OR VIBRATION9. N

OTHER10. N

59. SUPERSTRUCTURE 7

BEARING DEVICES1. N

GIRDERS OR BEAMS2. N

ARCH(ES) OR SLAB(S)3. G

FLOOR BEAMS AND STRINGERS4. N

TRUSSES5. N

DIAPHRAGMS AND BRACING6. N

7. PAINT N

FASCIA(E)8. G

DEFLECTION AND/OR VIBRATION9. G

ALIGNMENT10. G

OTHER11. N

60. SUBSTRUCTURE 6

ITEM REFERENCE AND REMARKS

ABUTMENTS

58.2 PARAPET EXPANSION JOINT SEALS MISSING OR DETERIORATED

THROUGHOUT. JOINTS ARE MOSTLY CLOSED WITH UP TO 1/8" GAP.

58.3, 222.4 MINOR ABRASION OF ASPHALT PAVEMENT. MINOR TRANSVERSE

AND LONGITUDINAL CRACKING OF PAVEMENT TYPICAL.

58.6 MINOR DETERIORATION OF PARAPET MASONRY MORTAR JOINTS.

DISPLACED CAPSTONES AT BOTH ENDS OF NORTH PARAPET.

58.7 MODERATE DEBRIS ACCUMULATION ALONG PARAPETS IN GRASS

SHOULDERS.

59.3,8 MODERATE EFFLORESCENCE FROM JOINTS BETWEEN STONE

MASONRY FASCIA AND CONCRETE ARCH UNDERSIDE. MINOR

DELAMINATION, SPALLING WITH EXPOSED REBAR, AND

HONEYCOMBING ON ARCH UNDERSIDE AT ISOLATED LOCATIONS.

MINOR CRACKING OF ARCH UNDERSIDE WITH EFFLORESCENCE

THROUGHOUT.

MINOR DETERIORATION OF FASCIA MASONRY MORTAR JOINTS.

60.1 MINOR VERTICAL CRACKING OF ABUTMENT BREASTWALLS WITH

EFFLORESCENCE; MINOR TO MODERATE SCALING IN NORMAL

WATER ZONE.

MINOR SPALLING WITH EXPOSED REBAR TIES DUE TO INADEQUATE

COVER ON WEST ABUTMENT BREASTWALL AT HAUNCH.

MINOR SPALLING WITH EXPOSED REBAR ON EAST ABUTMENT,

CONCRETE IS DELAMINATED AROUND SPALLS. MINOR TO

MODERATE EFFLORESCENCE ON EAST ABUTMENT BREASTWALL

EXTENDING FROM TOP.

60.6 MINOR EFFLORESCENCE ON ALL WINGWALLS; MINOR TO

MODERATE VINE GROWTH. MODERATE LEAKAGE THROUGH

MORTAR JOINTS AT SOUTHWEST WINGWALL WITH MODERATE

EFFLORESCENCE.

11.

1 0.

9.

8.

7.

6.

5.

4.

3.

2.

1.

12. 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 G

N

N

N

N

F

G

F

F

G

N

N

PIER(S)

N 13. WALLS AND/OR COLUMNS

N 14. PILE BENTS

N 15. CAPS AND/OR BEARING SEATS

N 16. FOUNDATIONS

N 17. EROSION AND/OR SCOUR

N 18. SETTLEMENT OR DEFLECTION

N 19. OTHER

FIELD INSPECTION REPORT STRUCTURE NO. 5460 011P

AND REMARKSITEM REFERENCE

61. CHANNEL 6

F 1. ALIGNMENT

F2. EROSION AND/OR SCOUR

N 3. CHANNEL PROTECTION

F 4. WATERWAY OBSTRUCTIONS

N 5. OTHER

SUFF ADEQUACY OF OPENING 6.

7. HIGHNORMAL VELOCITY

9 FT. 8. AVERAGE CLEAR OPENING

9. STREAM BED COMPOSITION :

ROCK, SAND, STONES

222. APPROACHES 7

OTHER 9.

ALIGNMENT 8.

SIGNS7.

SETTLEMENT6.

EROSION5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS 2.

APPROACH SLABS 1. N

N

N

G

G

G

N

G

N

223. RETAINING WALL 7

OTHER6.

SETTLEMENT OR DEFLECTION5.

EROSION AND/OR SCOUR 4.

FOUNDATION 3.

WEEP HOLES 2.

WALL1. G

G

N

G

G

N

36. TRAFFIC AND SAFETY FEATURES

APPROACH GUARDRAIL ENDSD.

APPROACH GUARDRAILSC.

TRANSITIONSB.

BRIDGE RAILINGSA. 0

N N N

60.8 JOINT FILLER MATERIAL MISSING FROM VERTICAL EXPANSION

JOINTS; TREES AND OTHER VEGETATION GROWTH IN NORTH

JOINTS.

60.9, 61.1 STREAM FLOWS MAINLY AGAINST NORTHWEST RETAINING WALL,

WEST ABUTMENT BREASTWALL, AND SOUTHWEST WINGWALL;

RESULTING IN MINOR SCOUR.

MINOR SCOUR AT NORTHEAST WINGWALL.

61.2 MODERATE SLOUGHING ALONG UPSTREAM CHANNEL BANKS HAS

UNDERMINED SEVERAL TREES .

61.4 MINOR ACCUMULATION OF TREES AND DEBRIS IN CHANNEL

BENEATH STRUCTURE.

222.7 OBJECT MARKERS ARE MISSING AT BRIDGE APPROACHES.

223 RETAINING WALL ADJACENT TO NORTHWEST WINGWALL; MINOR TO

MODERATE VEGETATION GROWTH ON RETAINING WALL.

36.A BRIDGE RAILING MEASURES 1'-6" HIGH AND DOES NOT MEET

AASHTO MINIMUM HEIGHT SPECIFICATION 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. 5460 011P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 15 14 25 23

HS 23 21 38 35

TYPE 3 20 18 33 30

TYPE 3S2 30 27 50 45

TYPE 3-3 40 36 67 60

DESIGN LOADING: UNKNOWN (H15 ASSUMED - SEE REMARKS)

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: DESIGN LOADING IS UNKNOWN; ASSUMPTION IS BASED ON STRUCTURE TYPE, LOCATION, AGE, AND

CONDITION.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5460 011P

STRUCTURE IDENTIFICATION

(201) PARK: GREAT SMOKY MOUNTAINS NATIONAL PARK (1) STATE: ....................................... 474 - TENNESSEE (TN)

(202) STRUCTURE NAME: .......... LAUREL BRANCH BRIDGE (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............1 - BRIDGE (3) COUNTY CODE: ........................ 155 - SEVIER

(4) CITY/PLACE CODE:

(204) STRUCTURE NUMBER: ..... 5460-011P

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

(206) ROUTE CODE NUMBER: ... 13 (6) FEATURES INTERSECTED:....... LAUREL BRANCH

(207) ROAD SECTION NO: ..........011P (7) FACILITY CARRIED: .................. FIGHTING CREEK GAP ROAD

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5460011P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 0.2 MILES EAST FROM NPS R

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

(211) PROJECT NO(S): ................ 3A3, 3B15 (11) MILE POINT: ............................. 4.69 (KM PT 7.55)

(212) DRAWING NUMBERS: ....... 3039 (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: .. 3 - POSSIBLY 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:

1 - CONCRETE

11 - ARCH - DECK

42.5 FT (13.0 M)

42.5 FT (13.0 M)

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

6 - N/A

6 - N/A

N - NOT APPLICABLE

(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: .. N - NOT APPLICABLE

B) TYPE MEMBRANE: ................. N - NOT APPLICABLE

C) TYPE PROTECTION:

N - NOT APPLICABLE

YES(218) IS SALT USED?:

LOAD RATING AND POSTING

(31) DESIGN LOAD:

0 - UNKNOWN (41) LOAD RESTRICTION:

A - OPEN, NO RESTRICTION

(66) INVENTORY RATING: ...... 23.0 TONS (21.0 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 38.0 TONS (35.0 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 5/16 (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. 5460 011P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 35°40'02.40" (51) CURB TO CURB WIDTH: ........... 30.0 FT (9.1 M)

(17) LONGITUDE: ......................... 83°35'41.50" (52) DECK WIDTH: ............................ 33.5 FT (10.2 M)

(19) DETOUR LENGTH: ............... 55 MI (89 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: .......... 1410 (34) SKEW ANGLE: ............................ 45 °

(30) YEAR OF ADT: ...................... 2010 (35) DECK FLARE?: ........................... NO

(114) FUTURE ADT: ..................... 1551 (47) TOTAL HORIZ. CLEARANCE: .... 30.0 FT (9.1 M)

(115) YEAR OF FUTURE ADT: ..... 2030 (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: .............................. 9 - OTHER

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

LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 0.0 FT (0.0 M) (215) BRIDGE RAIL HEIGHT: ............ 2.50 FT (0.76 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: .................................N

(59) SUPERSTRUCTURE:

(60) SUBSTRUCTURE:

(61) CHANNEL:

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

(222) APPROACHES:

(223) RETAINING WALL:

(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

4 - Stable; action required to pro

2 - REHAB/RECONSTRUCTION

D - MINOR

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1996 - PARAPET EXPANSION JOINTS RESEALED.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

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APPENDIX STRUCTURE NO. 5460 011P

PHOTOGRAPHS STRUCTURE NO. 5460 011P

FLOW

PHOTO #1 - LOOKING EAST TOWARD GATLINBURG

PHOTO #2 - NORTH (DOWNSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW LOOKING EAST

PHOTO #4 - GENERAL UNDERSIDE VIEW LOOKING NORTHEAST

PHOTO #5 - TYPICAL TRANSVERSE AND LONGITUDINAL CRACKING OF

PAVEMENT, EAST END SHOWN

PHOTO #6 - TYPICAL DETERIORATION OF PARAPET MASONRY MORTAR

JOINTS, SOUTH PARAPET NEAR WEST END SHOWN

PHOTO #7 - DISPLACED CAPSTONE AT NORTHEAST END

PHOTO #8 - TYPICAL SPALLING WITH EXPOSED REBAR ON ARCH

UNDERSIDE, NEAR NORTH SIDE SHOWN

PHOTO #9 - TYPICAL EFFLORESCENCE ON

MASONRY RING STONES, SOUTH SIDE

SHOWN

PHOTO #10 - GENERAL VIEW OF WEST

ABUTMENT; NOTE SCOUR ALONG ABUTMENT

PHOTO #11 - SPALLING WITH EXPOSED REBAR ON EAST ABUTMENT

BREASTWALL

PHOTO #12 - TYPICAL SCALING OF ABUTMENT BREASTWALLS IN

NORMAL WATER ZONE, WEST ABUTMENT SHOWN

PHOTO #13 - TYPICAL EFFLORESCENCE AND

VEGETATION GROWTH ON WINGWALLS,

SOUTHWEST WINGWALL SHOWN

PHOTO #14 - TYPICAL JOINT FILLER MATERIAL

MISSING FROM VERTICAL EXPANSION JOINTS

WITH VEGETATION GROWTH, NORTHEAST

JOINT SHOWN

PHOTO #15 - ACCUMULATION OF DEBRIS IN CHANNEL BENEATH

STRUCTURE

PHOTO #16 - SLOUGHING ALONG UPSTREAM CHANNEL BANKS WITH

UNDERMINED TREES

STRUCTURE NO. 5460 011PPHOTOGRAPHS

PHOTO #17 - LOOKING UPSTREAM THROUGH STRUCTURE

PHOTO #18 - LOOKING DOWNSTREAM THROUGH STRUCTURE