BIP_Report_3450-018P_Zoo_Tunnel_Bridge.pdf

BRIDGE INSPECTION REPORT

ZOO TUNNEL BRIDGE

ROCK CREEK PARKWAY OVER ROCK CREEK

ROCK CREEK PARK

LS

STRUCTURE NO. 3450-018P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 6/12/13

Federal Highway Administration

Report prepared by: ED

MILE POINT:

KILOMETER POINT:

0.23 0.37

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. 3450-018P

ZOO TUNNEL BRIDGE INSPECTION DATE: 6/12/13

BRIDGE IDENTIFICATION AND DESCRIPTION

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

MAIN SPAN TYPE: ............... BOX GIRDER - SINGLE or SPREAD NO. OF APPR. SPANS:

# OF BEAMS, MAIN SPAN: .. 1 STRUCT. TOTAL LENGTH: .. 201.8 FT (61.5 M)

DECK TYPE: ......................... CONCRETE CAST-IN-PLACE MAX. SPAN LENGTH: .......... 146.8 FT (44.7 M) WEARING SURFACE: .......... BITUMINOUS DECK WIDTH: ...................... 34.0 FT (10.4 M)

ABUT. FOUNDATIONS: ........ OTHER CURB TO CURB WIDTH: ..... 24.0 FT (7.3 M)

PIER FOUNDATION(S): ........ SPREAD FTG ON BEARING MAT'L YEAR BUILT:

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

PROJ./PLAN REF. NO: ......... 3C3 / NONE SKEW ANGLE: ..................... 54 °

NPS ROAD CLASS: .............. 1 - PRINCIPAL PARK ROAD FRACTURE CRITICAL: ........ N/A STRUCTURE HISTORY: ...... 1977-JOINT REPAIR. 2008-ASPHALT WEARING SURFACE REPLACED, SOUTH APPROACH

REPAVED.

LOCATION

ROCK CREEK PARK MILE POINT: ..................... 0.23 (KM PT 0.37)

STATE: ................................. DISTRICT OF COLUMBIA LOCATION: 0.3 MILES FROM HARVARD STREET

FACILITY CARRIED: ............ ROCK CREEK PARKWAY

FEATURE INTERSECTED: .. ROCK CREEK

STRUCTURE EVALUATION SUMMARY

This multi-cell concrete box girder bridge is in fair condition overall. The main problem with this structure is widespread deterioration of the box girder concrete, indicating the possible presence of moisture inside the structure.

However, it should be noted that the interior of the box girder cannot be accessed for inspection because the manhole covers are paved over or bolted down. The manhole covers should be removed in order to fully evaluate the extent of the moisture intrusion and the resulting deterioration of the concrete. The areas of deteriorated concrete should be removed, the exposed rebar cleaned and coated with approved sealant to arrest any rusting and/or section loss, and new concrete placed to the original dimensions as necessary.

Additionally, moderate to severe rusting of the bridge railings is present with areas rusted through at a few locations;

this condition continues to worsen. The bottom rail of the east railing is unsupported at one location due to the section loss. In the interest of public safety, the bridge railing should be replaced in the near future with a railing that meets current safety criteria for pedestrian/bicycle railings.

Additional problems include severe deterioration of the joint sealant in the north expansion joint and minor deterioration of the sidewalks in some locations. Repairs should be made as outlined in this report to prevent the possible development of more serious or costly problems in the future.

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. 3450-018P

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.

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. 3450-018P

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.

(MANHOLE COVERS)

G F N N N N N N G

N G

G G F P G N

F

F

G

F

58.1,3 ASPHALT WEARING SURFACE ON MULTI-CELL CONCRETE BOX

GIRDER. PREVIOUSLY NOTED FADED PAVEMENT MARKINGS ON

WEARING SURFACE HAS BEEN RESTRIPED (DOUBLE YELLOW

LINES ONLY) SINCE PREVIOUS INSPECTION.

58.2 DEBRIS PACKED IN DECK EXPANSION JOINTS. MINOR CORROSION

OF PLATES AT SOUTH EXPANSION JOINT. MINOR CRACKING,

DELAMINATION, AND EDGE SPALLING OF JOINT HEADERS; MOST

AREAS FILLED WITH ASPHALT. SEVERE DETERIORATION OF JOINT

SEAL IN NORTH EXPANSION JOINT IN ROADWAY AND SIDEWALKS;

MINOR VEGETATION GROWTH AT SIDEWALKS.

58.5 MINOR CRACKING, DELAMINATION, AND SPALLING OF CURBS AND

SIDEWALKS WITH EFFLORESCENCE; MODERATE SPALLING OF

SIDEWALK AROUND BASE OF RAIL POST ON WEST SIDE NEAR

MIDSPAN OF CENTER SPAN. MINOR VEHICLE SCRAPES WITH RUST

STAINING ON GRANITE CURBS.

WIDESPREAD MODERATE TRANSVERSE CRACKING OF UNDERSIDE

OF SIDEWALK OVERHANGS WITH EFFLORESCENCE AND RUST

STAINING.

58.6 MINOR TO MODERATE PEELING OF PAINT AND RUSTING OF

RAILINGS. SEVERE RUSTING OF RAIL POST ANCHOR BOLTS AND

NUTS WITH MODERATE SECTION LOSS. SEVERE RUSTING OF

BOTH RAILINGS AT MIDSPAN OF CENTER SPAN EXPANSION AREA

WITH AREAS RUSTED THROUGH; BOTTOM RAIL UNSUPPORTED ON

EAST SIDE.

58.7 MINOR PONDING OBSERVED ALONG NORTHBOUND CURB AT

MIDSPAN.

58.10 ACCESS MANHOLE COVER TO BOX GIRDER INTERIOR BOLTED

WITH HEADS WORN FLUSH IN NORTH SPAN; COVERED WITH

ASPHALT IN SOUTH SPAN.

59.1 MINOR RUSTING OF GALVANIZED STEEL BEARING DEVICES AT

PIERS.

BREASTWALLS OR COLUMNS1. N

PILE BENTS2. N

CAPS AND/OR BEARING SEATS3. N

BACKWALLS AND/OR BULKHEADS4. N

FOUNDATIONS5. N

WINGWALLS6. G

WEEP HOLES7. N

EXPANSION JOINTS8. N

EROSION AND/OR SCOUR9. G

SETTLEMENT OR DEFLECTION10. G

SLOPE PROTECTION11. N

OTHER 12. N

PIER(S)

G13. WALLS AND/OR COLUMNS

N14. PILE BENTS

G15. CAPS AND/OR BEARING SEATS

N16. FOUNDATIONS

G17. EROSION AND/OR SCOUR

G18. SETTLEMENT OR DEFLECTION

N19. OTHER

FIELD INSPECTION REPORT STRUCTURE NO. 3450-018P

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 F G G N

MED

SUFF

10 FT.

SAND, ROCK

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 F N G 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 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.

59.2 MINOR LONGITUDINAL CRACKING, DELAMINATION, AND SPALLING

OF BOX GIRDER UNDERSIDE, SOME WITH EXPOSED REBAR DUE TO

INSUFFICIENT CONCRETE COVER; MOISTURE SEEPAGE FROM

SPALLING AT NORTH PIER. REBAR CHAIRS EXPOSED AND RUSTED

THROUGHOUT BOX GIRDER UNDERSIDE. MINOR DRIFT SCRAPES

ON BOX GIRDER UNDERSIDE. MINOR CRACKING OF SIDES OF BOX

GIRDER WITH EFFLORESCENCE AND RUST STAINING; MINOR

DELAMINATION AND SPALLING WITH EXPOSED REBAR DUE TO

INSUFFICIENT CONCRETE COVER AT A FEW LOCATIONS.

MODERATE SPALLS ON NORTH HALF OF CENTER SPAN.

60.6 MINOR CRACKING OF WINGWALL MASONRY MORTAR JOINTS;

MODERATE SURFACE DETERIORATION OF MASONRY. MODERATE

VINE GROWTH ON WINGWALLS. HEAVY VEGETATION GROWTH

AROUND SOUTH END OF STRUCTURE. SEVERAL LOOSE STONES

ON TOP OF NORTH END OF SOUTHEAST WINGWALL.

60.9,17 MINOR SCOUR ALONG BOTH PIER WALLS. MINOR EROSION ALONG

SOUTHEAST WINGWALL; AREA HEAVILY VEGETATED.

60.13 MINOR VERTICAL CRACKING OF SOUTH PIER WALL BELOW SHEAR

KEYS. MINOR VERTICAL CRACKING OF NORTH PIER WALL BELOW

BEARINGS.

60.15 JOINT FILLER BETWEEN BEARING SEAT AND BOX GIRDER

DETERIORATED WITH MATERIAL SHIFTING OUT AT BOTH PIERS;

MINOR VEGETATION GROWTH IN JOINTS. MINOR ACCUMULATION

OF DRIFT AND SAND ON SOUTH PIER BEARING SEAT.

61.2,3 MINOR EROSION OF SOUTH CHANNEL BANK WITH EXPOSED TREE

ROOTS; NORTH CHANNEL BANK PROTECTED WITH DRY-STACKED

STONES. MODERATE UNDERMINING OF CULVERT OUTLET NEXT TO

NORTHEAST WINGWALL; CULVERT SET IN CONCRETE AND

APPEARS STABLE.

61.4 MINOR ACCUMULATION OF DRIFT AT UPSTREAM END OF SOUTH

PIER.

222.4,6 MINOR TRANSVERSE CRACKING OF PAVEMENT AT NORTH

APPROACH WITH MINOR SETTLEMENT. PREVIOUSLY NOTED

FADED PAVEMENT MARKINGS ON WEARING SURFACE HAVE BEEN

RESTRIPED (DOUBLE YELLOW LINES ONLY ) SINCE PREVIOUS

INSPECTION.

UP TO 1'H DIFFERENTIAL AT END OF SOUTHEAST SIDEWALK DUE

TO SETTLEMENT OF APPROACH SHOULDER. 4" SETTLEMENT OF

APPROACH CURBS AT NORTH APPROACH.

36.A RAILING HEIGHT OF 2'-9" DOES NOT MEET AASHTO MINIMUM

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

BARRIERS.

STRUCTURE LOAD RATING STRUCTURE NO. 3450-018P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 20 18 33 30

HS 35 32 59 54

TYPE 3 35 32 59 54

TYPE 3S2 40 36 66 60

TYPE 3-3 42 38 70 64

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. 3450-018P

ZOO TUNNEL BRIDGE INSPECTION DATE: 6/12/13

STRUCTURE IDENTIFICATION

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

(202) STRUCTURE NAME: .......... ZOO TUNNEL BRIDGE (2) STATE HWY. AGENCY DIST:

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

(204) STRUCTURE NUMBER: ..... 3450-018P (4) CITY/PLACE CODE:

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

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

(207) ROAD SECTION NO: .......... 018P (7) FACILITY CARRIED: .................. ROCK CREEK PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 3450018P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 0.3 MILES FROM HARVARD S

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

(211) PROJECT NO(S): ................ 3C3 (11) MILE POINT: ............................. 0.23 (KM PT 0.37)

(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:

1 - CONCRETE

06 - BOX GIRDER - SINGLE or SPREAD

146.8 FT (44.7 M)

201.8 FT (61.5 M)

5 - OTHER

5 - OTHER

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

(66) INVENTORY RATING: ...... 35.0 TONS (32.0 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 59.0 TONS (54.0 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: 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. :

o

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 3450-018P

ZOO TUNNEL BRIDGE INSPECTION DATE: 6/12/13

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 38°55'26.58"

(17) LONGITUDE: ......................... 77°02'54.88"

(19) DETOUR LENGTH: ............... 1 MI (2 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?: ... 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: ........... 24.0 FT (7.3 M)

(52) DECK WIDTH: ............................ 34.0 FT (10.4 M)

(32) APPR. ROADWAY WIDTH: ........ 24.0 FT (7.3 M)

(213) APPR. PAVEMENT WIDTH: ..... 24.0 FT (7.3 M)

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

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

(33) BRIDGE MEDIAN: ....................... 0 - NO MEDIAN

(34) SKEW ANGLE: ............................ 54 °

(35) DECK FLARE?: ........................... NO

(47) TOTAL HORIZ. CLEARANCE: .... 24.0 FT (7.3 M)

(50) SIDEWALKS:

LEFT : ...................................... 3.7 FT (1.1 M)

RIGHT : ................................... 3.7 FT (1.1 M)

(214) BRIDGE RAIL TYPE:

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

MATERIAL: .............................. 4 - STEEL

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

(215) BRIDGE RAIL HEIGHT: ............ 2.75 FT (0.84 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: ... 0NNN

(75A) TYPE OF WORK: .............. 38 - OTHER STRUCT. WORK

(75B) WORK DONE BY: ............. 1 - CONTRACT

(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

C - MODERATE

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1977-JOINT REPAIR. 2008-ASPHALT WEARING SURFACE REPLACED, SOUTH APPROACH REPAVED.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

http:77�02'54.88 http:38�55'26.58

APPENDIX STRUCTURE NO. 3450-018P

PHOTOGRAPHS STRUCTURE NO. 3450-018P

PHOTO #1 - LOOKING NORTH TOWARD ZOO TUNNEL

FLOW

PHOTO #2 - WEST (UPSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW

LOOKING SOUTH; PREVIOUSLY NOTED

DETERIORATED PAVEMENT MARKINGS HAVE

BEEN RESTRIPED SINCE PREVIOUS

INSPECTION

PHOTO #4 - DETERIORATION OF JOINT FILLER

IN EAST SIDEWALK AT NORTH EXPANSION

JOINT; NOTE VEGETATION GROWTH

PHOTO #5 - DEBRIS PACKED IN NORTH

EXPANSION JOINT; ALSO NOTE

DETERIORATION OF SEALANT

PHOTO #6 - CLOSE-UP OF PREVIOUS PHOTO

PHOTO #7 - TYPICAL CORROSION OF SOUTH

EXPANSION JOINT PLATES; EAST END SHOWN

PHOTO #8 - TYPICAL CRACKING,

DELAMINATION, AND SPALLING OF

SIDEWALKS; EAST SIDEWALK NEAR MIDSPAN

OF CENTER SPAN SHOWN

PHOTO #9 - TYPICAL SPALLING OF CURBS;

WEST CURB AT NORTH END OF NORTH SPAN

SHOWN

PHOTO #10 - SPALLING OF SIDEWALK

AROUND BASE OF RAIL POST ON WEST SIDE

NEAR MIDSPAN OF CENTER SPAN

PHOTO #11 - TYPICAL PEELING OF PAINT AND RUSTING OF RAILINGS;

EAST RAILING AT MIDSPAN OF CENTER SPAN SHOWN

PHOTO #12 - TYPICAL RUSTING OF RAIL POST ANCHOR BOLTS AND

ANCHOR BOLT NUTS WITH SECTION LOSS; EAST RAILING NEAR

MIDSPAN OF CENTER SPAN SHOWN

PHOTO #13 - TYPICAL RUSTING OF RAILINGS AT MIDSPAN OF CENTER

SPAN WITH RAILS RUSTED THROUGH; EAST SIDE SHOWN; NOTE

UNSUPPORTED BOTTOM RAIL

PHOTO #14 - ACCESS MANHOLE COVER TO BOX GIRDER INTERIOR

BOLTED WITH HEADS WORN FLUSH IN NORTH SPAN

PHOTO #15 - TYPICAL TRANSVERSE

CRACKING OF PAVEMENT AT NORTH

APPROACH; ALSO NOTE SETTLEMENT OF

PAVEMENT

PHOTO #16 - HEIGHT DIFFERENTIAL AT

SOUTH END OF EAST SIDEWALK

PHOTO #17 - TYPICAL VEGETATION GROWTH AROUND SOUTH END OF

STRUCTURE; EAST SIDE SHOWN

PHOTO #18 - GENERAL UNDERSIDE VIEW LOOKING NORTH, CENTER

SPAN

PHOTO #19 - TYPICAL TRANSVERSE

CRACKING OF UNDERSIDE OF SIDEWALK

OVERHANGS WITH EFFLORESCENCE AND

RUST STAINING; EAST SIDEWALK NEAR

SOUTH PIER SHOWN

PHOTO #20 - TYPICAL RUSTING OF

GALVANIZED STEEL BEARING DEVICES AT

PIERS; BEARING #4 AT NORTH PIER SHOWN

PHOTO #21 - TYPICAL SPALLING OF BOX

GIRDER UNDERSIDE WITH EXPOSED REBAR;

EAST SIDE NEAR SOUTH PIER SHOWN

PHOTO #22 - TYPICAL SPALLING OF BOX

GIRDER UNDERSIDE WITH EXPOSED REBAR;

EAST SIDE AT NORTH PIER SHOWN; ALSO

NOTE MOISTURE SEEPAGE

PHOTO #23 - DRIFT SCRAPES ON BOX GIRDER UNDERSIDE, CENTER

SPAN

PHOTO #24 - TYPICAL DELAMINATION AND SPALLING OF SIDES OF

BOX GIRDER WITH EXPOSED REBAR; EAST SIDE NEAR MIDSPAN OF

CENTER SPAN SHOWN

PHOTO #25 - TYPICAL JOINT FILLER BETWEEN BEARING SEAT AND

BOX GIRDER DETERIORATED WITH MATERIAL SHIFTING OUT AT BOTH

PIERS; SOUTH PIER SHOWN

PHOTO #26 - GENERAL VIEW OF NORTH PIER, SOUTH SIDE

PHOTO #27 - TYPICAL VERTICAL CRACKING OF SOUTH PIER WALL

BELOW SHEAR KEYS

PHOTO #28 - UNDERMINING OF CULVERT OUTLET NEXT TO

NORTHEAST WINGWALL

PHOTO #29 - LOOSE WINGWALL STONES

ADJACENT TO BOX BEAM ON SOUTHEAST

WINGWALL, NORTH END

PHOTO #30 - GENERAL VIEW OF SOUTH PIER

WALL, NORTH SIDE; NOTE HIGH WATER

PHOTO #31 - LOOKING UPSTREAM THROUGH STRUCTURE, CENTER

SPAN

PHOTO #32 - ACCUMULATION OF DRIFT AT UPSTREAM END OF SOUTH

PIER

PHOTO #33 - EROSION OF SOUTH UPSTREAM CHANNEL BANK WITH

EXPOSED TREE ROOTS

PHOTO #34 - LOOKING DOWNSTREAM THROUGH STRUCTURE,

CENTER SPAN