9830-015P Bridge Safety Inspection.pdf

STRUCTURE SUMMARY STRUCTURE NO. 9830-015P

STONY CREEK BRIDGE INSPECTION DATE: 6/25/19

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:

STEEL

STRINGER/MULTI-BEAM or GIRDER

CONCRETE CAST-IN-PLACE

MONOLITHIC CONCRETE

PILE BENT

PILE BENT

CONCRETE

UNKNOWN / 756

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:

108.0 FT (32.9 M)

35.0 FT (10.7 M)

28.5 FT (8.7 M)

24.0 FT (7.3 M)

N/A

0 °

NO

LOCATION

DENALI NATIONAL PARK & PRESERVE MILE POINT: ..................... 60.70 (KM PT 97.69)

STATE: ................................. ALASKA LOCATION: 60.7 MILES WEST OF AK ROUTE 3 (MP

237.3) ON DENALI PARK ROAD. FACILITY CARRIED: ............ DENALI PARK ROAD

FEATURE INTERSECTED: .. STONY CREEK

STRUCTURE EVALUATION SUMMARY

This steel multi-beam bridge is in fair condition overall. Problems include erosion at the end of the northeast and southeast wingwalls; a scour hole at the south end of the east abutment; deterioration of both pier joints; rutting of the approach surfaces; spalling of the deck with exposed reinforcement; spalling of the curbs; and a lack of object markers at the bridge corners. Corrective measures should be taken as outlined in this report to prevent more serious or costly problems from developing in the future.

It should also be noted that top coat of paint on the structural steel has begun to wear off, primarily where the scuppers drain directly onto the lower portions of the exterior beams. The scuppers should be retrofitted with telescoping downspouts to channel the water away from the beams.

The condition of the paint system and steel elements will continue to be monitored during future inspection cycles, and repainting of the entire superstructure may be recommended in the future.

There have been no significant changes since the previous inspection.

INSPECTION TEAM: E. MILTNER, F. R. QUINONEZ

CONDITION ASSESSMENT:

ED MILTNER, P.E., FIELD TEAM LEADER

REPORT REVIEW:

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

REPORT APPROVAL: DATE: 12/9/19

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 9830-015P

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.

C226 PRIORITY OF IMPROVEMENT

ITEM

NO.

ROUTINE MAINTENANCE QTY. UNIT UNIT

COST

PRELIM.

COST

ESTIMATE

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS)

QTY. UNIT

UNIT

COST

PRELIM. COST

ESTIMATES

REHAB. RECONSTR.

FIELD INSPECTION REPORT STRUCTURE NO. 9830-015P

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 sec ion 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.

G F N N N G G N G

N G

F N G G G F G N F G N N

F 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 HAIRLINE TRANSVERSE CRACKING AND CLEAT TRACK DAMAGE (UP

TO 1/4" DEEP) THROUGHOUT DECK SURFACE. EXPOSED

AGGREGATE IN DECK CONCRETE THROUGHOUT BOTH ENDS.

MINOR TRANSVERSE CRACKING WITH EFFLORESCENCE ON DECK

UNDERSIDE IN CENTER SPAN; HEAVY AT CONCRETE BOLSTER

OVER WEST PIER. MINOR SPALLING AT WEST EDGE OF DECK.

MODERATE 2.5'L X 4'W X 2"D DEEP SPALLING IN DECK SURFACE AND

JOINT REPAIR OVER WEST PIER WITH EXPOSED REBAR - NO

CORROSION ON REBAR. PREVIOUS PATCH OVER WEST PIER,

DELAMINATION 5' X 1'.

58.2 MINOR TO MODERATE DETERIORATION OF DECK JOINT SEALANT AT

ENDS OF JOINTS OVER PIERS AND ABUTMENTS.

58.5 SEVERAL AREAS OF SPALLING ON OUTSIDE FACE OF CURBS NEAR

DECK JOINTS, ESPECIALLY ON BOTH CURBS AT WEST PIER, SOUTH

CURB AT WEST ABUTMENT, AND NORTH CURB AT EAST ABUTMENT.

SPALLING WITH HEAVY MAP CRACKING OF INSIDE FACE OF CURBS,

ESPECIALLY NEAR JOINTS. SNOWPLOW DAMAGE TO NORTH CURB

IN SEVERAL LOCATIONS.

58.6 MINOR CRACKING OF SEVERAL RAIL POSTS. MINOR PAINT FLAKING

WITH MINOR RUSTING.

58.7 DECK SCUPPERS DRAIN DIRECTLY ONTO LOWER PORTION OF

EXTERIOR BEAMS, CAUSING PAINT DETERIORATION.

59.2,6 BEAMS ARE SALVAGED, AS NOTED ON ORIGINAL PLANS. BEAMS

SHOW MINOR TO MODERATE PITTING MAINLY AT ENDS. PITTING

HAS BEEN PAINTED OVER. EXTERIOR BEAMS HAVE SMALLER SIZE

BOTTOM FLANGE COVER PLATE THAN INTERIOR BEAMS. MINOR

RUST OF TOP FLANGES OF DIAPHRAGMS AT BOTH PIERS. HEAVY

BIRD DROPPINGS ON BEAMS AT DIAPHRAGMS WHERE NESTS ARE

LOCATED.

59.7 MINOR TO MODERATE DETERIORATION OF TOP COAT OF PAINT ON

STRUCTURAL STEEL IN SOME LOCATIONS. PRIMER COAT APPEARS

TO BE LARGELY INTACT. SEE ALSO 58.7.

N G F G G N

N

F

G

F

FIELD INSPECTION REPORT STRUCTURE NO. 9830-015P

ITEM REFERENCE AND REMARKS

61. CHANNEL 6

1. ALIGNMENT G

2. EROSION AND/OR SCOUR F

3. CHANNEL PROTECTION G

4. WATERWAY OBSTRUCTIONS G

5. OTHER N

6. ADEQUACY OF OPENING INSUFF

7. NORMAL VELOCITY MED

8. AVERAGE CLEAR OPENING 14 FT.

9. STREAM BED COMPOSITION :

GRAVEL, GLACIAL TILL

222. APPROACHES 6

1. APPROACH SLABS

2. RELIEF JOINTS

3. APPROACH GUARDRAIL

4. SURFACING

5. EROSION

6. SETTLEMENT

7. SIGNS

8. ALIGNMENT

9. OTHER

N N N F F G N G N

223. RETAINING WALL N

1. WALL

2. WEEP HOLES

3. FOUNDATION

4. EROSION AND/OR SCOUR

5. SETTLEMENT OR DEFLECTION

6. OTHER

36. TRAFFIC AND SAFETY FEATURES

A. BRIDGE RAILINGS

B. TRANSITIONS

C. APPROACH GUARDRAILS

D. APPROACH GUARDRAIL ENDS

N N N

TRAFFIC SAFETY RATING CODES

0 - Does not meet standards or a safety feature is required and none is provided.

1 - Meets currently acceptable standards.

N - Not applicable or a safety feature is not required.

60.1,6

60.9, 222.5

60.13

61.2

61.2

61.3

61.6

222.4,5

222.7

36.A

UP TO 1/16" WIDE DIAGONAL CRACKS WITH EFFLORESCENCE AND

RUST STAINING AT OUTSIDE CORNERS OF BOTH ABUTMENTS

CONTINUING INTO WINGWALLS; CRACKS ORIGINATE AT BACK

CORNER OF BEARING SEATS. MINOR HORIZONTAL CRACKING AND

SPORADIC MAP CRACKING OF ABUTMENT BREASTWALLS. SMALL

SPALL ON UPSTREAM CORNER OF WEST ABUTMENT.

MINOR SPALLING AT END OF SOUTHWEST WINGWALL. SURVEY

MARKER ON END OF NORTHEAST WINGWALL.

EROSION FROM DECK AND ROAD RUNOFF AT ALL 4 CORNERS.

SOUTHEAST END HAS ERODED TO EDGE OF ROADWAY SHOULDER;

NORTHEAST END NOT AS SEVERE TO EDGE OF ROAD. 4' WIDE X 4'

DEEP ERODED AREA AT END OF SOUTHEAST WINGWALL; 36"

UNDERMINING OF WINGWALL. EROSION WITH UNDERMINING, UP

TO 18", ALONG SOUTHEAST WINGWALL.

FULL HEIGHT, APPROXIMATELY 1/16" WIDE VERTICAL CRACKS ON

BOTH FACES OF BOTH PIERS. MINOR ABRASION ON UPSTREAM

SIDE OF PIERS AND MINOR MAP CRACKING OF SIDES AND

UPSTREAM FACES.

CHANNEL SHOWS SIGNS OF HEAVY BED LOAD MOVEMENT. BED

LOAD DEPOSITION, SCOURING OF BED, AND CONSTANT SHIFTING

OF FLOW PATHS ARE TYPICAL.

SEE BRIDGE FILE FOR SCOUR EVALUATION.

GUIDE BANK IN PLACE AT UPSTREAM SIDE OF WEST ABUTMENT.

STRUCTURE CONSTRICTS CHANNEL SIGNIFICANTLY DURING HIGH

FLOW.

MINOR POTHOLES ON WEST APPROACH. MINOR MIGRATION OF

GRAVEL FROM APPROACH ROADWAYS ONTO BRIDGE DECK.

NO OBJECT MARKERS PRESENT AT EITHER APPROACH.

RAILING TYPE HAS NOT BEEN CRASH-TESTED FOR SAFETY.

STRUCTURE LOAD RATING STRUCTURE NO. 9830-015P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 26 24 43 39

HS 39 35 65 59

TYPE 3 34 31 57 52

TYPE 3S2 54 49 90 82

TYPE 3-3 66 60 110 100

DESIGN LOADING: HS15 (MS13.5)

X CAPACITY MEETS OR EXCEEDS DESIGN LOAD

CAPACITY IS LESS THAN DESIGN LOAD

ORIGINAL LOAD RATING CALCULATION APPLICABLE

X ORIGINAL LOAD RATING CALCULATION REVISED

DATE OF LOAD RATING CALCULATION: 12/15

LOAD RATING CONTROLLED BY: MOMENT

REMARKS: SEE BRIDGE FILE FOR LOAD RATING CALCULATIONS.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 9830-015P

STRUCTURE IDENTIFICATION

(201) PARK: DENALI NATIONAL PARK & PRESERVE (1) STATE: ....................................... 020 - ALASKA (AK)

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

(203) STRUCTURE KIND: ............1 - BRIDGE (3) COUNTY CODE: ........................ 290 - YUKON-KOYUKUK

(204) STRUCTURE NUMBER: ..... 9830-015P (4) CITY/PLACE CODE:

(205) NPS REGION: .................... 7 - ALASKA (5) INVENTORY ROUTE:

(206) ROUTE CODE NUMBER: ... 10 (6) FEATURES INTERSECTED:....... STONY CREEK

(207) ROAD SECTION NO: ..........015P (7) FACILITY CARRIED: .................. DENALI PARK ROAD

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 9830015P0000000

(209) WITHIN NPS BNDRY?: .......YES (9) LOCATION: ................................ 60.7 MILES WEST OF AK ROU

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

(211) PROJECT NO(S): ................UNKNOWN (11) MILE POINT: .............................60.70 (KM PT 97.69)

(212) DRAWING NUMBERS: ....... 756 (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:

3 - STEEL

02 - STRINGER/MULTI-BEAM or GIRDER

35.0 FT (10.7 M)

108.0 FT (32.9 M)

4 - PILE BENT

4 - PILE BENT

4 - PILE BENT

4 - PILE BENT

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: .. 1 - MONOLITHIC CONCRETE

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

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

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

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 3 - HS15 (MS13.5) (41) LOAD RESTRICTION: ......... A - OPEN, NO RESTRICTION

(66) INVENTORY RATING: ...... 39.0 TONS (35.4 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 65.0 TONS (59.0 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 6/19 (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: 5 - SCOUR

(B) UNDERWATER: .............. NO

(221) SPECIAL STUDY DATE: 9/98 INSP. EVERY: MONTHS - LAST INSP. :

(C) SPECIAL INSPECTION: .. NO

INSP. EVERY: MONTHS - LAST INSP. :

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 9830-015P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 63°27'51.40"

(17) LONGITUDE: ......................... 150°12'00.80"

(19) DETOUR LENGTH: ............... 199 MI (199 KM)

(28A) LANES ON STRUCT:

(28B) LANES UNDER STRUCT: ... 00

(42A) SERVICE ON: ..................... 1 - HIGHWAY

(42B) SERVICE UNDER: .............. 5 - WATERWAY

(29) AVG. DAILY TRAFFIC:

(30) YEAR OF ADT:

(114) FUTURE ADT:

(115) YEAR OF FUTURE ADT:

(101) PARALLEL STRUCTURE: ... N - NONE

(38) NAVIGATION CONTROL?: ... 0

(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: ....................... 0.0 FT (0.0 M)

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

(51) CURB TO CURB WIDTH:

(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:

24.0 FT (7.3 M)

28.5 FT (8.7 M)

30.0 FT (9.1 M)

24.0 FT (7.3 M)

3.0 FT (0.9 M)

3.0 FT (0.9 M)

0 - NO MEDIAN

0 °

NO

24.0 FT (7.3 M)

2.3 FT (0.7 M)

2.3 FT (0.7 M)

1 - FULL HEIGHT (NO PARAPE

3 - CONCRETE/STEEL

1 - CONTINUOUS RAIL

2.25 FT (0.69 M)

99.99 FT (99.99 M)

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:

(231) ADDITIONAL CONSIDERATIONS:

CALCIUM CHLORIDE IS USED ON BRIDGE APPROACHES.

(330) ADDITIONAL CONFIG. INFO.:

Span #1 & #3 - Length 34.7', Span #2 - Length 35.2'; Type 302 (Steel Beams) 4-each

APPENDIX STRUCTURE NO. 9830-015P

PHOTOGRAPHS STRUCTURE NO. 9830-015P

PHOTO #1 - LOOKING EAST

FLOW

PHOTO #2 - SOUTH (UPSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW LOOKING WEST

PHOTO #4 - TYPICAL VIEW OF CURB AND RAIL, UPSTREAM RAIL

LOOKING WEST SHOWN

PHOTO #5 - GENERAL VIEW OF JOINT OVER EAST PIER LOOKING

DOWNSTREAM

PHOTO #6 - GENERAL VIEW OF JOINT OVER WEST PIER LOOKING

DOWNSTREAM

PHOTO #7 - SPALLING OF DECK WITH EXPOSED REBAR NEAR JOINT

ABOVE WEST PIER

PHOTO #8 - SPALLING OF CURB ON DOWNSTREAM SIDE ABOVE WEST

PIER

PHOTO #9 - GENERAL VIEW OF SUPERSTRUCTURE IN EAST SPAN

LOOKING EAST

PHOTO #10 - GENERAL VIEW OF SUPERSTRUCTURE IN MID SPAN

LOOKING WEST

PHOTO #11 - GENERAL VIEW OF SUPERSTRUCTURE IN WEST SPAN

LOOKING WEST

PHOTO #12 - TYPICAL TRANSVERSE CRACKING WITH

EFFLORESCENCE ON DECK UNDERSIDE, UPSTREAM BAY MID SPAN

SHOWN

PHOTO #13 - GENERAL VIEW OF COVER PLATES END, INTERIOR BAY

MID SPAN SHOWN

PHOTO #14 - GENERAL VIEW OF EAST ABUTMENT (6/14/2017 PHOTO)

PHOTO #15 - TYPICAL DIAGONAL CRACKING FROM CORNERS OF

ABUTMENT BEARING SEATS, EAST ABUTMENT DOWNSTREAM SIDE

SHOWN

PHOTO #16 - GENERAL VIEW OF EAST PIER LOOKING DOWNSTREAM

PHOTO #17 - GENERAL VIEW OF EAST PIER LOOKING EAST

PHOTO #18 - TYPICAL MAP CRACKING OF PIERS; UPSTREAM SIDE OF

EAST PIER SHOWN

PHOTO #19 - GENERAL VIEW OF WEST PIER LOOKING EAST

PHOTO #20 - VERTICAL CRACKING IN EAST FACE OF WEST PIER WEB

WALL

PHOTO #21 - TYPICAL SPALLING OF CURB OVERHANG ABOVE PIER,

UPSTREAM CURB OVER WEST PIER SHOWN

PHOTO #22 - GENERAL VIEW OF WEST ABUTMENT

PHOTO #23 - SPALLING OF UPSTREAM CURB OVERHANG ABOVE WEST

ABUTMENT

PHOTO #24 - EROSION ON UPSTREAM SIDE OF EAST APPROACH

PHOTO #25 - EAST APPROACH

PHOTO #26 - WEST APPROACH

PHOTO #27 - VIEW FROM BRIDGE LOOKING UPSTREAM

PHOTO #28 - VIEW FROM BRIDGE LOOKING DOWNSTREAM