Bridge_Inspection_Rpt_STR_5460-010P.pdf

BRIDGE INSPECTION REPORT

FIGHTING CREEK BRIDGE

FIGHTING CREEK GAP ROAD OVER FIGHTING CREEK

GREAT SMOKY MOUNTAINS NATIONAL PARK

LE

STRUCTURE NO. 5460-010P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 5/11/14

Report prepared by: ND

Federal Highway Administration 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. 5460-010P

FIGHTING CREEK BRIDGE INSPECTION DATE: 5/11/14

BRIDGE IDENTIFICATION AND DESCRIPTION

MAIN SPAN MATERIAL:

MAIN SPAN TYPE:

# OF BEAMS, MAIN SPAN: ..

DECK TYPE:

WEARING SURFACE:

ABUT. FOUNDATIONS:

PIER FOUNDATION(S):

ABUTMENT / PIER MAT'L: ...

PROJ./PLAN REF. NO:

NPS ROAD CLASS:

STRUCTURE HISTORY:

CONCRETE CONTINUOUS

SLAB

CONCRETE CAST-IN-PLACE

BITUMINOUS

SPREAD FTG ON BEARING MAT'L

SPREAD FTG ON BEARING MAT'L

MASONRY

3A5, 3B15 / G1515

1 - PRINCIPAL PARK ROAD

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:

94.3 FT (28.7 M)

29.0 FT (8.8 M)

37.3 FT (11.4 M)

21.8 FT (6.6 M)

N/A

10 °

NO

LOCATION

GREAT SMOKY MOUNTAINS NATIONAL PARK MILE POINT: ..................... 0.37 (KM PT 0.60)

STATE: ................................. TENNESSEE LOCATION: 0.4 MILES WEST FROM NPS ROUTE 10

(NEWFOUND GAP ROAD). FACILITY CARRIED: ............ FIGHTING CREEK GAP ROAD

FEATURE INTERSECTED: .. FIGHTING CREEK

STRUCTURE EVALUATION SUMMARY

This concrete slab bridge is in good condition overall. Problems include cracked mortar joints throughout the masonry components, a displaced coping stone at the southeast wingwall, heavy tree and vegetation growth on the north side of the center and west spans, and a lack of reflective object markers at the bridge corners.

In addition, consideration should be given to installing a guardrail system as the structure is located on a horizontal curve and has narrow shoulders.

Corrective measures 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. REISINGER, B. HENRY (GANNETT FLEMING)

CONDITION ASSESSMENT:

JASON REISINGER, FIELD TEAM LEADER

REPORT REVIEW :

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

REPORT APPROVAL: DATE: 9/30/14

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5460-010P

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.

59.8 REPOINT MORTAR JOINTS AS NEEDED THROUGHOUT STRUCTURE. 50 LF

60.6 RESET DISPLACED COPING STONE ON SOUTHEAST WINGWALL. 1 EA

222.7 INSTALL REFLECTIVE OBJECT MARKERS AT BRIDGE CORNERS. 4 EA

61.4 REMOVE SMALL TREES AND VEGETATION GROWTH FROM NORTH SIDE OF

CENTER AND WEST SPANS.

1 LS

PRELIM. MAINTENANCE TOTAL :

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS)

QTY. UNIT

UNIT

COST ESTIMATES

PRELIM. COST

REHAB. RECONSTR.

36.A INSTALL GUARDRAIL SYSTEM OVER STRUCTURE AND AT

APPROACHES.

350 LF

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.

Consideration should be given to installation of guardrails on either side of the structure due to the curved alignment of the roadway and the minimal (4') grass shoulders separating the roadway from the spandrel walls.

FIELD INSPECTION REPORT STRUCTURE NO. 5460-010P

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 G N N N N G G

N G

G G N N G N

N

N

G

G

58.1, 59.3,8 FLAT SLAB WITH ARCHED FASCIA. MODERATE EFFLORESCENCE

AND LEAKAGE ALONG CONSTRUCTION JOINT AND ON AND NEAR

STONE MASONRY FASCIA RING STONES, ESPECIALLY EAST SPAN.

MINOR DETERIORATION OF FASCIA MORTAR JOINTS, MODERATE

DETERIORATION AT RING STONES; VEGETATION GROWTH IN SOME

JOINTS. WATER LEAKAGE THROUGH SOUTH FASCIA STONES IN

ALL SPANS.

58.3, 222.4 SEVERAL TRANSVERSE AND LONGITUDINAL CRACKS IN PAVEMENT.

60.1,13 SEVERAL STONES REMOVED ALONG FACES OF ABUTMENTS TO

FACILITATE DRAINAGE. MINOR TO MODERATE DETERIORATION OF

MORTAR JOINTS AT WATERLINE ON EAST ABUTMENT AND EAST

FACE OF EAST PIER. MINOR WATER LEAKAGE THROUGH NORTH

SIDE OF WEST PIER MORTAR JOINTS.

60.6 MODERATE EFFLORESCENCE ALONG MORTAR JOINTS AT

NORTHEAST WINGWALL. USGS MARKER ON SOUTHWEST

WINGWALL.

60.6,10 MINOR CRACKING OF WINGWALL MORTAR JOINTS WITH

EFFLORESCENCE. VINE GROWTH ON WINGWALLS REMOVED

SINCE PREVIOUS INSPECTION. NORTHEAST WINGWALL APPEARS

TO HAVE ROTATED SLIGHTLY; VERTICAL CRACKS ARE VISIBLE IN

MASONRY. COPING STONE ON SOUTHEAST WINGWALL IS

DISPLACED.

BREASTWALLS OR COLUMNS1. G

PILE BENTS2. N

CAPS AND/OR BEARING SEATS3. N

BACKWALLS AND/OR BULKHEADS4. N

FOUNDATIONS5. N

WINGWALLS6. G

WEEP HOLES7. G

EXPANSION JOINTS8. N

EROSION AND/OR SCOUR9. G

SETTLEMENT OR DEFLECTION10. F

SLOPE PROTECTION11. N

OTHER 12. N

PIER(S)

WALLS AND/OR COLUMNS 13. G

PILE BENTS14. N

CAPS AND/OR BEARING SEATS15. N

FOUNDATIONS16. N

EROSION AND/OR SCOUR17. G

SETTLEMENT OR DEFLECTION18. G

OTHER 19. N

INSPECTION DATE: 5/11/14

STRUCTURE NO. 5460-010P FIELD INSPECTION REPORT

FIGHTING CREEK BRIDGE

ITEM REFERENCE AND REMARKS

AVERAGE CLEAR OPENING 8.

7. NORMAL VELOCITY

ADEQUACY OF OPENING 6.

5. OTHER

4. WATERWAY OBSTRUCTIONS

CHANNEL PROTECTION3.

EROSION AND/OR SCOUR2.

ALIGNMENT1.

61. CHANNEL 7

G G N F N

MED

SUFF

4 FT.

9. STREAM BED COMPOSITION :

ROCK, SAND, STONES

222. APPROACHES 7

OTHER 9.

ALIGNMENT 8.

SIGNS7.

SETTLEMENT 6.

EROSION5.

SURFACING4.

APPROACH GUARDRAIL 3.

2. RELIEF JOINTS

APPROACH SLABS1. N

N N G G G N F 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 ENDSD.

APPROACH GUARDRAILSC.

TRANSITIONSB.

BRIDGE RAILINGSA. 0

N

61.2 MINOR PONDING AGAINST NORTH SIDE OF WEST ABUTMENT.

61.4 SMALL TREES, VEGETATION GROWTH AND APPROXIMATELY 2' OF

SEDIMENT ACCUMULATION IN WEST AND CENTER SPANS.

222.7 NO OBJECT MARKERS PRESENT AT BRIDGE CORNERS.

222.8 STRUCTURE IS LOCATED ON SHARP HORIZONTAL CURVE.

36 HEADWALLS ARE WITHIN CLEAR ZONE. INSTALLATION OF

GUARDRAIL IS RECOMMENDED.

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. 5460-010P

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. 5460-010P

STRUCTURE IDENTIFICATION

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

(202) STRUCTURE NAME: .......... FIGHTING CREEK BRIDGE (2) STATE HWY. AGENCY DIST:

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

(204) STRUCTURE NUMBER: ..... 5460-010P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 13 (6) FEATURES INTERSECTED:....... FIGHTING CREEK

(207) ROAD SECTION NO: .......... 010P (7) FACILITY CARRIED: .................. FIGHTING CREEK GAP ROAD

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5460010P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 0.4 MILES WEST FROM NPS

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

(211) PROJECT NO(S): ................ 3A5, 3B15 (11) MILE POINT: ............................. 0.37 (KM PT 0.60)

(212) DRAWING NUMBERS: ....... G1515 (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:

2 - CONCRETE CONTINUOUS

01 - SLAB

29.0 FT (8.8 M)

94.3 FT (28.7 M)

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

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?: ..................... YES

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: 5/14 (91) FREQ. OF INSP: 48 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. 5460-010P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 35°41'10.90" (51) CURB TO CURB WIDTH: ........... 21.8 FT (6.6 M)

(17) LONGITUDE: ......................... 83°32'27.20" (52) DECK WIDTH: ............................ 37.3 FT (11.4 M)

(19) DETOUR LENGTH: ............... 55 MI (89 KM) (32) APPR. ROADWAY WIDTH: ........ 31.0 FT (9.4 M)

(28A) LANES ON STRUCT: .......... 02 (213) APPR. PAVEMENT WIDTH: ..... 20.0 FT (6.1 M)

(28B) LANES UNDER STRUCT: ... 00 LEFT SHOULDER: .................. 4.0 FT (1.2 M)

(42A) SERVICE ON: ..................... 1 - HIGHWAY RIGHT SHOULDER: ................ 7.0 FT (2.1 M)

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

(29) AVG. DAILY TRAFFIC: .......... 1410 (34) SKEW ANGLE: ............................ 10 °

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

(114) FUTURE ADT: ..................... 1551 (47) TOTAL HORIZ. CLEARANCE: .... 33.3 FT (10.1 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: ......... 0 - N/A

(111) ABUT. OR PIER PROT: ....... MATERIAL: .............................. 0 - N/A

DESIGN TYPE: ........................ 0 - N/A

LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 99.9 FT (99.9 M) (215) BRIDGE RAIL HEIGHT: ............ 0.00 FT (0.00 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: ... 0N00

(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

8 - Stable; scour above top of fo

2 - REHAB/RECONSTRUCTION

D - MINOR

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

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APPENDIX STRUCTURE NO. 5460-010P

PHOTOGRAPHS STRUCTURE NO. 5460-010P

PHOTO #1 - LOOKING WEST TOWARD LITTLE RIVER ROAD

FLOW

PHOTO #2 - SOUTH (UPSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW LOOKING EAST

PHOTO #4 - GENERAL UNDERSIDE VIEW OF EAST SPAN LOOKING

SOUTH

PHOTO #5 - TRANSVERSE CRACKING OF

PAVEMENT OVER STRUCTURE

PHOTO #6 - CRACKING WITH

EFFLORESCENCE ON MORTAR JOINTS AT

WINGWALLS, SOUTHEAST WINGWALL SHOWN

PHOTO #7 - DISPLACED COPING STONE ON SOUTHEAST WINGWALL

PHOTO #8 - GENERAL VIEW OF SOUTHWEST WINGWALL

PHOTO #9 - GENERAL VIEW OF EAST ABUTMENT

PHOTO #10 - TYPICAL MISSING STONES ALONG EAST ABUTMENT,

WEST ABUTMENT SIMILAR

PHOTO #11 - TYPICAL EFFLORESCENCE

ALONG MASONRY FASCIA, NORTH SIDE OF

EAST SPAN SHOWN

PHOTO #12 - TYPICAL EFFLORESCENCE

ALONG CONSTRUCTION JOINTS,

CONSTRUCTION JOINT IN EAST SPAN SHOWN

PHOTO #13 - TYPICAL EFFLORESCENCE

ALONG MASONRY FASCIA, NORTH SIDE OF

EAST SPAN SHOWN

PHOTO #14 - GENERAL VIEW OF

INTERMEDIATE WALL BETWEEN EAST AND

CENTER SPANS

PHOTO #15 - GENERAL UNDERSIDE VIEW OF CENTER SPAN LOOKING

NORTH

PHOTO #16 - GENERAL UNDERSIDE VIEW OF WEST SPAN LOOKING

NORTH

PHOTO #17 - DETERIORATION OF MORTAR JOINTS ON SOUTH SIDE OF

WEST SPAN

PHOTO #18 - VEGETATION AND TREE GROWTH ON NORTH SIDE OF

CENTER AND WEST SPANS

PHOTO #19 - LOOKING UPSTREAM THROUGH STRUCTURE

PHOTO #20 - LOOKING DOWNSTREAM THROUGH STRUCTURE