Bridge_Inspection_Rpt_STR_5460-213P.pdf

BRIDGE INSPECTION REPORT

BRIDGE #8

FOOTHILLS PARKWAY OVER RAVINE

GREAT SMOKY MOUNTAINS NATIONAL PARK

LW

STRUCTURE NO. 5460-213P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 5/12/14

Report prepared by: SS

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. 5460-213P

BRIDGE #8 INSPECTION DATE: 5/12/14

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:

P/S CONCRETE CONTINUOUS

STRINGER/MULTI-BEAM or GIRDER

CONCRETE CAST-IN-PLACE

INTEGRAL CONCRETE

SPREAD FTG ON BEARING MAT'L

SPREAD FOOTING ON PILES

CONCRETE

PRA-FOOT 8E13 /

6 - RESTRICTED

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:

210.0 FT (64.0 M)

84.0 FT (25.6 M)

37.0 FT (11.3 M)

34.0 FT (10.4 M)

N/A

10 °

NO

LOCATION

GREAT SMOKY MOUNTAINS NATIONAL PARK MILE POINT: ..................... 0.00 (KM PT 0.00)

STATE: ................................. TENNESSEE LOCATION: 9.5 MILES EAST OF U.S. ROUTE 321.

FACILITY CARRIED: ............ FOOTHILLS PARKWAY

FEATURE INTERSECTED: .. RAVINE

STRUCTURE EVALUATION SUMMARY

This prestressed concrete multi-beam bridge is in good condition overall. No repairs are required at this time.

It should be noted that this bridge is not yet open to public traffic. Minor issues, including gravel in the expansion joints, soil accumulation along the southeast approach parapet, and trees growing against the sides of the bridge should be addressed when final preparations are made to open this portion of the Foothills Parkway. Additional problems in this category include erosion beneath the west span, near the abutment.

INSPECTION TEAM: C. CASTRO, H. SALAD

CONDITION ASSESSMENT:

CARLOS CASTRO, P.E., FIELD TEAM LEADER 571-434-1546

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. 5460-213P

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.

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:

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: No repairs are required at this time. Bridge is not yet in service.

FIELD INSPECTION REPORT STRUCTURE NO. 5460-213P

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)

G G N N N G N N G

N G

G N G G G G G N F G F

G(VAULTED ABUTMENTS)

G N G G G G N

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.

METAL STAY-IN-PLACE FORMS INSIDE VAULTED ABUTMENTS;

SECTION OF FORMS HAVE BEEN REMOVED AT BOTH ABUTMENTS

EXPOSING REFLECTIVE CRACKING WITH EFFLORESCENCE IN

VAULTED ABUTMENTS. (NO VERIFIED IN THIS INSPECTION).

58.2 MINOR GRAVEL ACCUMULATION IN BOTH COMPRESSION JOINT

SEALS.

58.3 HAIRLINE TRANSVERSE CRACKING OF CONCRETE WEARING

SURFACE.

58.7 SOIL ACCUMULATION ALONG SOUTHEAST APPROACH PARAPET.

ASPHALT DRAINAGE CHUTE ALONG NORTHEAST WINGWALL. SEE

ALSO 60.9,11.

58.10 TREES GROWING AGAINST BOTH SIDES OF DECK. TREES

GROWING UNDERNEATH OF STRUCTURE.

59.1 ELASTOMERIC BEARING PADS IN GOOD CONDITION.

60.1 MINOR VEGETATION GROWTH ON ABUTMENT BREASTWALLS.

MINOR VERTICAL CRACKING OF ABUTMENT BREASTWALLS, SOME

WITH EFFLORESCENCE.

60.9,11 SOME RUBBLE RIPRAP IN PLACE BELOW DECK DRAINS AT

NORTHWEST AND SOUTHEAST BRIDGE CORNERS. MODERATE

EROSION BENEATH WEST SPAN NEAR ABUTMENT HAS EXPOSED

UNDERLYING FILTER FABRIC.

60.12 MINOR VERTICAL CRACKING WITH MODERATE EFFLORESCENCE

ON INTERIOR WALLS. CRACK GAGE INSTALLED IN WEST

ABUTMENT, EAST WALL, DURING CONSTRUCTION. (NO VERIFIED IN

THIS INSPECTION).

G G G G G N

F

G

G

G

INSPECTION DATE: 5/12/14

STRUCTURE NO. 5460-213P FIELD INSPECTION REPORT

BRIDGE #8

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 N

9. STREAM BED COMPOSITION :

222. APPROACHES 7

OTHER 9.

ALIGNMENT 8.

SIGNS7.

SETTLEMENT 6.

EROSION5.

SURFACING4.

APPROACH GUARDRAIL 3.

2. RELIEF JOINTS

APPROACH SLABS1. G

N G F G G G G N

223. RETAINING WALL 7

OTHER 6.

SETTLEMENT OR DEFLECTION5.

EROSION AND/OR SCOUR4.

FOUNDATION3.

WEEP HOLES2.

1. WALL G

N N G G N

36. TRAFFIC AND SAFETY FEATURES

APPROACH GUARDRAIL ENDSD.

APPROACH GUARDRAILSC.

TRANSITIONSB.

BRIDGE RAILINGSA. 1

222.1 MINOR RANDOM CRACKING OF BOTH APPROACH SLABS.

222.3 MODERATE EFFLORESCENCE ON BASE OF NORTHEAST APPROACH

PARAPET.

222.4 MINOR CRACKING AT BOTH APPROACH SLABS.

222.7 "AREA CLOSED DUE TO HAZARDOUS CONSTRUCTION. NO HIKERS,

BICYCLISTS, HORSE RIDERS OR OTHER USERS ALLOWED BEYOND

THIS POINT" LOCATED AT WALLAND ENTRANCE.

223.1 MINOR TO MODERATE EFFLORESCENCE ON SOUTHEAST MASONRY

RETAINING WALL; MINOR ON SOUTHWEST.

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. 5460-213P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 26 24 44 40

HS 36 33 60 55

TYPE 3 34 31 57 52

TYPE 3S2 43 39 71 64

TYPE 3-3 49 44 81 74

DESIGN LOADING: UNKNOW N HL-93

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. 5460-213P

STRUCTURE IDENTIFICATION

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

(202) STRUCTURE NAME: .......... BRIDGE #8 (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............ 1 - BRIDGE (3) COUNTY CODE: ........................ 133 - OVERTON

(204) STRUCTURE NUMBER: ..... 5460-213P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 0 (6) FEATURES INTERSECTED:....... RAVINE

(207) ROAD SECTION NO: .......... 213P (7) FACILITY CARRIED: .................. FOOTHILLS PARKWAY

(208) NPS ROAD CLASS: ............ 6 - RESTRICTED (8) STATE STRUCTURE NO: .......... 5460213P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 9.5 MILES EAST OF U.S. RO

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

(211) PROJECT NO(S): ................ PRA-FOOT 8E13 (11) MILE POINT: ............................. 0.00 (KM PT 0.00)

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

84.0 FT (25.6 M)

210.0 FT (64.0 M)

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

3 - SPREAD FOOTING ON PILES

3 - SPREAD FOOTING ON PILES

1 - CONCRETE CAST-IN-PLACE

(44A) APPR. STR. MATERIAL: ........ 1 - CONCRETE

(44B) APPR. STR. TYPE: ................ 04 - TEE BEAM

(46) NO. OF APPROACH SPANS: .. 2

(108) WEAR SURFACE/PROTECT SYSTEM:

A) TYPE WEARING SURFACE: .. 2 - INTEGRAL CONCRETE

B) TYPE MEMBRANE: ................. 0 - NONE

C) TYPE PROTECTION: .............. 0 - NONE

(218) IS SALT USED?: ..................... NO

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 0 - UNKNOWN (41) LOAD RESTRICTION: ......... A - OPEN, NO RESTRICTION

(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: 5/14 (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:

(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. 5460-213P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 35°42'49.70" (51) CURB TO CURB WIDTH: ........... 34.0 FT (10.4 M)

(17) LONGITUDE: ......................... 83°42'53.40" (52) DECK WIDTH: ............................ 37.0 FT (11.3 M)

(19) DETOUR LENGTH: ............... 199 MI (199 KM) (32) APPR. ROADWAY WIDTH: ........ 34.0 FT (10.4 M)

(28A) LANES ON STRUCT: .......... 02 (213) APPR. PAVEMENT WIDTH: ..... 34.0 FT (10.4 M)

(28B) LANES UNDER STRUCT: ... 00 LEFT SHOULDER: .................. 0.0 FT (0.0 M)

(42A) SERVICE ON: ..................... 1 - HIGHWAY RIGHT SHOULDER: ................ 0.0 FT (0.0 M)

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

(29) AVG. DAILY TRAFFIC: .......... 0 (34) SKEW ANGLE: ............................ 10 °

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

(114) FUTURE ADT: ..................... 0 (47) TOTAL HORIZ. CLEARANCE: .... 34.0 FT (10.4 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: .............................. 6 - ALUMINUM

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

LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 0.0 FT (0.0 M) (215) BRIDGE RAIL HEIGHT: ............ 3.08 FT (0.94 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: .......................... 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: ..

(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 - Not over waterway.

1 - MAINTENANCE

D - MINOR

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

(231) ADDITIONAL CONSIDERATIONS:

KEY REQUIRED TO ACCESS THIS PORTION OF THE FOOTHILLS PARKWAY UNTIL ROAD IS OPEN TO THE PUBLIC. 3/4" SOCKET

WRENCH IS ALSO REQUIRED TO GAIN ACCESS TO INTERIOR OF VAULTED ABUTMENTS.

(330) ADDITIONAL CONFIG. INFO.:

http:83�42'53.40 http:35�42'49.70

APPENDIX STRUCTURE NO. 5460-213P

PHOTOGRAPHS STRUCTURE NO. 5460-213P

PHOTO #1 - LOOKING EAST

PHOTO #2 - GENERAL TOP SIDE VIEW LOOKING EAST

PHOTO #3 - TYPICAL DEBRIS ACCUMULATION

IN DECK EXPANSION JOINTS, WEST

EXPANSION JOINT SHOWN

PHOTO #4 - TREES OVERHANGING BRIDGE

ALONG NORTH RAILING; NOTE ALSO TYPICAL

DEBRIS AND SANDBAGS ALONG CURB

PHOTO #5 - LONGITUDINAL CRACKING ON

WEST APPROACH SLAB

PHOTO #6 - TRANSVERSE CRACKING ON

WEST APPROACH SLAB

PHOTO #7 - DIAGONAL CRACKING ON EAST APPROACH SLAB

PHOTO #8 - GRAVEL ROAD BEYOND EAST APPROACH SLAB; NOTE

DIFFERENCE OF LEVEL AND CONSTRUCTION SIGN

PHOTO #9 - GENERAL UNDERSIDE VIEW OF WEST SPAN

PHOTO #10 - GENERAL UNDERSIDE VIEW OF EAST SPAN, LOOKING

WEST; NOTE TYPICAL EFFLORESCENCE ON DIAPHRAGMS

PHOTO #11 - GENERAL UNDERSIDE VIEW OF SPAN #2; NOTE

EFFLORESCENCE FROM TRANSVERSAL CONSTRUCTION JOINTS;

NOTE ALSO GROWING TREES UNDERNEATH OF STRUCTURE

PHOTO #12 - CLOSE UP OF TYPICAL CRACKING WITH

EFFLORESCENCE ON DECK UNDERSIDE AT SOUTH BAYS IN WEST

SPAN, NEAR PIER

PHOTO #13 - GENERAL VIEW OF NORTH

OVERHANG

PHOTO #14 - GENERAL VIEW OF EAST

ABUTMENT

PHOTO #15 - EROSION AT EAST ABUTMENT

SLOPE

PHOTO #16 - GENERAL VIEW OF WEST

ABUTMENT

PHOTO #17 - GEO-FABRIC AND STONE USED FOR PROTECTION

AGAINST EROSION AT WEST ABUTMENT SLOPE; NOTE STILL

ONGOING EROSION

PHOTO #18 - TYPICAL BEARING CONDITION, BEARINGS ON WEST

ABUTMENT NEAR SOUTH END SHOWN

PHOTO #19 - TYPICAL CONDITIONS OF END DIAPHRAGM AT

ABUTMENTS; NOTE EFFLORESCENCE AND CRACKING

PHOTO #20 - TYPICAL EFFLORESCENCE ON PIERS, WEST PIER

SHOWN

PHOTO #21 - LOOKING SOUTH FROM STRUCTURE

PHOTO #22 - NORTHEAST WINGWALL