BIP_Report_3450-011P_Piney_Branch_Bridge.pdf

BRIDGE INSPECTION REPORT

PINEY BRANCH BRIDGE

BEACH DRIVE OVER PINEY BRANCH

ROCK CREEK PARK

LN

STRUCTURE NO. 3450-011P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 6/12/13

Federal Highway Administration

Report prepared by: EU

MILE POINT:

KILOMETER POINT:

1.38 2.22

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. 3450-011P

PINEY BRANCH BRIDGE INSPECTION DATE: 6/12/13

BRIDGE IDENTIFICATION AND DESCRIPTION

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

MAIN SPAN TYPE: ............... SLAB NO. OF APPR. SPANS:

# OF BEAMS, MAIN SPAN: .. 1 STRUCT. TOTAL LENGTH: .. 64.0 FT (19.5 M)

DECK TYPE: ......................... CONCRETE CAST-IN-PLACE MAX. SPAN LENGTH: .......... 32.6 FT (9.9 M) WEARING SURFACE: .......... MONOLITHIC CONCRETE DECK WIDTH: ...................... 45.8 FT (14.0 M)

ABUT. FOUNDATIONS: ........ UNKNOWN CURB TO CURB WIDTH: ..... 32.6 FT (9.9 M)

PIER FOUNDATION(S): ........ UNKNOWN YEAR BUILT:

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

PROJ./PLAN REF. NO: ......... 15A1 / NONE SKEW ANGLE: ..................... 48 °

NPS ROAD CLASS: .............. 1 - PRINCIPAL PARK ROAD FRACTURE CRITICAL: ........ N/A

STRUCTURE HISTORY: ...... 1984-MAJOR RECONSTRUCTION/SUPERSTRUCTURE.

LOCATION

ROCK CREEK PARK MILE POINT: ..................... 1.38 (KM PT 2.22)

STATE: ................................. DISTRICT OF COLUMBIA LOCATION: 0.4 MILES FROM TILDEN STREET

FACILITY CARRIED: ............ BEACH DRIVE

FEATURE INTERSECTED: .. PINEY BRANCH

STRUCTURE EVALUATION SUMMARY

This continuous concrete slab bridge is in fair condition overall. The main problems with this bridge are cracking of the slab surface and underside, and deterioration of the substructure concrete. The expansion joint filler in the sidewalks is severely deteriorated, allowing water to drain directly onto the abutment bearing seats, which contributes to the deterioration. The sidewalk expansion joints and the deck should be sealed in order to prevent water intrusion, and the delaminated and spalled concrete on the substructure should be repaired.

Additional problems include chipping and fading of paint on the railings with moderate to severe collision damage to the west railing, and moderate accumulation of debris on the upstream side of the structure. Repairs should be made as outlined in this report to prevent the possible development of more serious or costly problems in the future. If corrective action is not taken, the deterioration will continue to progress and may eventually lead to loss of load capacity.

INSPECTION TEAM: R. VENKATAREDDY, B. CARPER (GANNETT FLEMING)

CONDITION ASSESSMENT:

RAMESH VENKATAREDDY, PE, FIELD TEAM LEADER

REPORT REVIEW :

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

REPORT APPROVAL: DATE: 10/31/13

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 3450-011P

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.

C226 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.

58.5, 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:

FIELD INSPECTION REPORT STRUCTURE NO. 3450-011P

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

N NOT APPLICABLE

9 EXCELLENT CONDITION

8 VERY GOOD CONDITION - no problems noted.

7 GOOD CONDITION - some minor problems.

6 SATISFACTORY CONDITION - structural elements show some minor deterioration.

5 FAIR CONDITION - all primary structural elements are sound but may have minor section loss, cracking, spalling, or scour.

4 POOR CONDITION - advanced section loss, deterioration, spalling, or scour.

3 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.

2 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.

1 “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.

0 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 5

1. DECK SLAB F

2. EXPANSION JOINTS P

3. WEARING SURFACE N

4. RIDEABILITY G

5. CURBS, SIDEWALKS, AND MEDIAN G

6. PARAPETS AND/OR RAILINGS F

7. DRAINS AND DRAINAGE G

8. UTILITIES N

9. DEFLECTION AND/OR VIBRATION G

10. OTHER N

59. SUPERSTRUCTURE 5

1. BEARING DEVICES

2. GIRDERS OR BEAMS

3. ARCH(ES) OR SLAB(S)

4. FLOOR BEAMS AND STRINGERS

5. TRUSSES

6. DIAPHRAGMS AND BRACING

7. PAINT

8. FASCIA(E)

9. DEFLECTION AND/OR VIBRATION

10. ALIGNMENT

11. OTHER

60. SUBSTRUCTURE

ABUTMENTS

1. BREASTWALLS OR COLUMNS

2. PILE BENTS

3. CAPS AND/OR BEARING SEATS

4. BACKWALLS AND/OR BULKHEADS

5. FOUNDATIONS

6. WINGWALLS

7. WEEP HOLES

8. EXPANSION JOINTS

9. EROSION AND/OR SCOUR

10. SETTLEMENT OR DEFLECTION

11. SLOPE PROTECTION

12. OTHER

PIER(S)

13. WALLS AND/OR COLUMNS

14. PILE BENTS

15. CAPS AND/OR BEARING SEATS

16. FOUNDATIONS

17. EROSION AND/OR SCOUR

18. SETTLEMENT OR DEFLECTION

19. OTHER

N N F N N N N N G G N

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

F N F N G G N

58.1, 59.3, 222.1

58.2

58.5

58.6

60.1,3

60.6

60.7

ITEM REFERENCE AND REMARKS

MINOR MAP CRACKING OF SLAB SURFACE; MINOR TRANSVERSE

CRACKING OVER ABUTMENTS AND PIER (APPROACH SLABS CAST

INTEGRAL WITH SLAB). MINOR LONGITUDINAL CRACKING ALONG

WEST SIDE OF SLAB SURFACE (REHAB PROJECT COLD JOINT).

MINOR WIDESPREAD LONGITUDINAL AND RANDOM CRACKING WITH

EFFLORESCENCE ON SLAB UNDERSIDE. MINOR SPALLING OF SLAB

UNDERSIDE WITH EXPOSED REBAR IN SEVERAL AREAS. MINOR

TRANSVERSE CRACKING OF UNDERSIDE OF OVERHANGS WITH

EFFLORESCENCE.

SEVERE DETERIORATION OF EXPANSION JOINT FILLER IN

SIDEWALKS AT BOTH ENDS OF STRUCTURE; MINOR VEGETATION

GROWTH. SMALL TREE GROWING IN SOUTH WEST SIDEWALK

JOINT.

MINOR CRACKING AND SPALLING OF SIDEWALKS AND CURBS.

MINOR VEHICLE SCRAPES ON CONCRETE MEDIAN AND CURBS.

VEGETATION GROWING ON WEST END OF MEDIAN.

CHIPPING AND FADING OF PAINT ON RAILINGS. RAIL POST

ANCHOR BOLT NUTS NOT FULLY SEATED IN SOME LOCATIONS.

MODERATE TO SEVERE COLLISION DAMAGE TO WEST RAILING

NEAR SOUTH END OF STRUCTURE; RAILS ARE BENT OUT UP TO 3".

MINOR VEHICLE SCRAPES ON WEST RAILING NEAR SOUTH END OF

STRUCTURE. MODERATE COLLISION DAMAGE TO WEST RAILING IN

SOUTH APPROACH; 2"L HOLE IN BOTTOM RAIL AT POINT OF

CONTACT. RAILING IS SLIGHTLY MISALIGNED AT DAMAGED AREA.

MODERATE CRACKING WITH MODERATE TO HEAVY

EFFLORESCENCE AND RUST STAINING ON BOTH ABUTMENT

BREASTWALLS. MODERATE TO SEVERE DELAMINATION AND

SPALLING WITH 10% SECTION LOSS TO EXPOSED REBAR ON

NORTH ABUTMENT BREASTWALL AND BEARING SEAT. MODERATE

DELAMINATION AND SPALLING OF SOUTH ABUTMENT

BREASTWALL.

SEVERAL MISSING STONES AT TOP OF SOUTHWEST WINGWALL AT

JUNCTION WITH BREASTWALL. HEAVY VEGETATION GROWTH

ALONG WINGWALLS.

MINOR TO MODERATE DEBRIS IN WEEP HOLES; MINOR RUSTING OF

SLEEVES.

FIELD INSPECTION REPORT STRUCTURE NO. 3450-011P

ITEM REFERENCE AND REMARKS

STREAM BED COMPOSITION : 9.

AVERAGE CLEAR OPENING 8.

NORMAL VELOCITY 7.

ADEQUACY OF OPENING 6.

OTHER 5.

WATERWAY OBSTRUCTIONS 4.

CHANNEL PROTECTION3.

EROSION AND/OR SCOUR2.

ALIGNMENT1.

61. CHANNEL 6

G G G F N

LOW

SUFF

10 FT.

SILT, ROCK

222. APPROACHES 6

OTHER 9.

ALIGNMENT 8.

SIGNS7.

SETTLEMENT 6.

EROSION5.

SURFACING4.

APPROACH GUARDRAIL 3.

2. RELIEF JOINTS

APPROACH SLABS1. G

N N F G F 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. 0

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.

60.8 SEVERE DETERIORATION OF VERTICAL EXPANSION JOINT FILLER

BETWEEN WINGWALLS AND ABUTMENTS; SMALL (UP TO 4"

DIAMETER) TREES AND VINE GROWTH AT SOUTHWEST AND

NORTHEAST JOINT.

60.13,15 MINOR CRACKING AND DELAMINATION WITH EFFLORESCENCE ON

FACES OF PIER WALL. 4' X 3' DELAMINATION ON NORTH FACE OF

PIER APPROXIMATELY 15' FROM NORTH END.

61.2 MINOR EROSION OF NORTH DOWNSTREAM CHANNEL BANK WITH

ONE TREE UNDERMINED.

61.4 MODERATE DEBRIS ACCUMULATION AT UPSTREAM END OF

STRUCTURE. SEVERAL MEDIUM-SIZED TREES IN CHANNEL.

222.4,6 MODERATE CRACKING WITH VEGETATION GROWTH, SPALLING,

AND SETTLEMENT OF ASPHALT APPROACH PAVEMENT AT ENDS OF

APPROACH SLABS; 1-1/2" SETTLEMENT AT NORTH APPROACH, 1" AT

SOUTH APPROACH.

UP TO 8" HEIGHT DIFFERENTIAL AT ENDS OF WEST SIDE

SIDEWALKS DUE TO SETTLEMENT OF APPROACH SHOULDERS.

MODERATE SETTLEMENT AND SPALLING OF APPROACH CURBS

AND SIDEWALKS WITH EXPOSED REBAR.

222.7 PREVIOUSLY NOTED LOOSE SIGN ATTACHED TO WEST RAILING AT

SOUTH APPROACH HAS BEEN SECURED WITH METAL STRAPS.

BENCHMARK ON EAST SIDEWALK AT SOUTH APPROACH.

223.1 MINOR DETERIORATION OF RETAINING WALL MASONRY MORTAR

JOINTS WITH MINOR MOSS AND VEGETATION GROWTH. SEVERAL

CAPSTONES DISPLACED AND MISSING TOWARD EAST END OF

NORTHEAST RETAINING WALL.

36.A RAILING HEIGHT OF 3'-0" DOES NOT MEET AASHTO MINIMUM

HEIGHT SPECIFICATION OF 3'-6" FOR PEDESTRIAN/BICYCLE

BARRIERS.

STRUCTURE LOAD RATING STRUCTURE NO. 3450-011P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 20 18 33 30

HS 30 27 51 46

TYPE 3 26 24 44 40

TYPE 3S2 39 35 66 60

TYPE 3-3 52 47 87 79

DESIGN LOADING: H20 (M18)

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.

A

A

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 3450-011P

PINEY BRANCH BRIDGE INSPECTION DATE: 6/12/13

STRUCTURE IDENTIFICATION

(201) PARK: ROCK CREEK PARK (1) STATE: ....................................... 113 - DISTRICT OF COLUMBI

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

(203) STRUCTURE KIND: ............ 1 - BRIDGE (3) COUNTY CODE: ........................ 001 - DISTRICT OF COLUMBI

(204) STRUCTURE NUMBER: ..... 3450-011P (4) CITY/PLACE CODE:

(205) NPS REGION: .................... 2 - NATIONAL CAPITAL (5) INVENTORY ROUTE:

(206) ROUTE CODE NUMBER: ... 10 (6) FEATURES INTERSECTED:....... PINEY BRANCH

(207) ROAD SECTION NO: .......... 011P (7) FACILITY CARRIED: .................. BEACH DRIVE

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 3450011P0000000

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

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

(211) PROJECT NO(S): ................ 15A1 (11) MILE POINT: ............................. 1.38 (KM PT 2.22)

(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:

2 - CONCRETE CONTINUOUS

01 - SLAB

32.6 FT (9.9 M)

64.0 FT (19.5 M)

0 - UNKNOWN

0 - UNKNOWN

0 - UNKNOWN

6 - N/A

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

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 4 - H20 (M18) (41) LOAD RESTRICTION: ......... A - OPEN, NO RESTRICTION

(66) INVENTORY RATING: ...... 30.0 TONS (27.0 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 51.0 TONS (46.0 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 6/13 (91) FREQ. OF INSP: 24 MONTHS (92 / 93) CRITICAL FEATURE INSPECTION (CFI):

(219) ADD. STUDIES NEEDED: Y - 1 - DECK SURVEY (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. :

f

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 3450-011P

PINEY BRANCH BRIDGE INSPECTION DATE: 6/12/13

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 38°56'07.10"

(17) LONGITUDE: ......................... 77°02'51.40"

(19) DETOUR LENGTH: ............... 2 MI (3 KM)

(28A) LANES ON STRUCT:

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

(42A) SERVICE ON: ..................... 5 - HIGHWAY-PEDESTRIAN

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

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

(51) CURB TO CURB WIDTH: ........... 32.6 FT (9.9 M)

(52) DECK WIDTH: ............................ 45.8 FT (14.0 M)

(32) APPR. ROADWAY WIDTH: ........ 21.0 FT (6.4 M)

(213) APPR. PAVEMENT WIDTH: ..... 21.0 FT (6.4 M)

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

RIGHT SHOULDER: ................ 0.0 FT (0.0 M)

(33) BRIDGE MEDIAN: ....................... 3 - CLOSED MEDIAN (non-moun

(34) SKEW ANGLE: ............................ 48 °

(35) DECK FLARE?: ........................... YES

(47) TOTAL HORIZ. CLEARANCE: .... 13.2 FT (4.0 M)

(50) SIDEWALKS:

LEFT : ...................................... 4.2 FT (1.3 M)

RIGHT : ................................... 4.5 FT (1.4 M)

(214) BRIDGE RAIL TYPE:

RAIL CONFIGURATION: ......... 1 - FULL HEIGHT (NO PARAPE

MATERIAL: .............................. 6 - ALUMINUM

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

(215) BRIDGE RAIL HEIGHT: ............ 3.00 FT (0.91 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:

(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:

1984-MAJOR RECONSTRUCTION/SUPERSTRUCTURE.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

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APPENDIX STRUCTURE NO. 3450-011P

PHOTOGRAPHS STRUCTURE NO. 3450-011P

PHOTO #1 - LOOKING SOUTH TOWARD ZOO

FLOW

PHOTO #2 - WEST (DOWNSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW

LOOKING NORTH

PHOTO #4 - TRANSVERSE CRACKING OF SLAB

SURFACE OVER SOUTH ABUTMENT

PHOTO #5 - TYPICAL DETERIORATION OF

EXPANSION JOINT FILLER IN SIDEWALKS AT

BOTH ENDS OF STRUCTURE; WEST

SIDEWALK AT NORTH END SHOWN

PHOTO #6 - COLLISION DAMAGE TO WEST

RAILING NEAR SOUTH END OF STRUCTURE

PHOTO #7 - COLLISION DAMAGE TO WEST

RAILING AT SOUTH APPROACH; HOLE IN

BOTTOM RAIL AT POINT OF CONTACT; ALSO

NOTE CHIPPING AND FADING OF PAINT

PHOTO #8 - TYPICAL CRACKING WITH

VEGETATION GROWTH, SPALLING AND

SETTLEMENT OF ASPHALT APPROACH

PAVEMENT AT ENDS OF APPROACH SLABS;

SOUTH APPROACH SHOWN

PHOTO #9 - TYPICAL SPALLING OF CURBS AND SIDEWALKS WITH

EXPOSED REBAR; WEST CURB AND SIDEWALK AT SOUTH APPROACH

SHOWN

PHOTO #10 - HEIGHT DIFFERENTIAL AT END OF WEST SIDEWALK AT

NORTH APPROACH

PHOTO #11 - GENERAL UNDERSIDE VIEW LOOKING SOUTH, NORTH

SPAN

PHOTO #12 - TYPICAL LONGITUDINAL AND RANDOM CRACKING WITH

EFFLORESCENCE ON SLAB UNDERSIDE; NORTH SPAN NEAR EAST

SIDE SHOWN

PHOTO #13 - GENERAL VIEW OF NORTH

ABUTMENT

PHOTO #14 - TYPICAL CRACKING WITH

EFFLORESCENCE AND RUST STAINING ON

ABUTMENT BREASTWALLS; NORTH

ABUTMENT NEAR EAST END SHOWN

PHOTO #15 - DELAMINATION AND SPALLING WITH SECTION LOSS TO

EXPOSED REBAR ON NORTH ABUTMENT BREASTWALL AND BEARING

SEAT

PHOTO #16 - TYPICAL DELAMINATION AND SPALLING WITH SECTION

LOSS FROM EXPOSED REBAR ON NORTH ABUTMENT BREASTWALL;

WEST END SHOWN

PHOTO #17 - TYPICAL DETERIORATION OF

VERTICAL EXPANSION JOINT FILLER

BETWEEN WINGWALLS AND ABUTMENTS;

NORTHEAST VERTICAL EXPANSION JOINT

SHOWN; NOTE TREE AND VINE GROWTH IN

JOINT

PHOTO #18 - TREE AND VINE GROWTH IN

SOUTHWEST VERTICAL EXPANSION JOINT;

ALSO NOTE MISSING STONES AT TOP OF

SOUTHWEST WINGWALL AT JUNCTION WITH

BREASTWALL

PHOTO #19 - GENERAL VIEW OF PIER, NORTH SIDE; NOTE TYPICAL

CRACKING WITH EFFLORESCENCE AND DRIFT

PHOTO #20 - TYPICAL DETERIORATION OF RETAINING WALL

MASONRY MORTAR JOINTS WITH MOSS AND VEGETATION GROWTH;

NORTHEAST RETAINING WALL SHOWN

PHOTO #21 - MISSING CAPSTONE TOWARD EAST END OF NORTHEAST

RETAINING WALL

PHOTO #22 - UPSTREAM CHANNEL

PHOTO #23 - DEBRIS ACCUMULATION AT

UPSTREAM END OF STRUCTURE

PHOTO #24 - DOWNSTREAM CHANNEL

PHOTO #25 - EROSION OF NORTH DOWNSTREAM CHANNEL BANK

WITH TREE UNDERMINED