Bridge_Inspection_Rpt_3300-033P2750.pdf

BRIDGE INSPECTION REPORT

CABIN JOHN CREEK BRIDGE

CLARA BARTON PKWY OVER CABIN JOHN CREEK & CABIN JOHN PKWY

GEORGE WASHINGTON MEMORIAL PARKWAY

LN

STRUCTURE NO. 3300-033P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 4/12/11

Federal Highway Administration

Report prepared by: EU

MILE POINT:

KILOMETER POINT:

3.44 5.54

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. 3300-033P

CABIN JOHN CREEK BRIDGE INSPECTION DATE: 4/12/11

BRIDGE IDENTIFICATION AND DESCRIPTION

MAIN SPAN MATERIAL: ....... CONCRETE

MAIN SPAN TYPE: ............... FRAME

# OF BEAMS, MAIN SPAN: .. 2

DECK TYPE: ......................... CONCRETE CAST-IN-PLACE

WEARING SURFACE: .......... MODIFIED CONCRETE

ABUT. FOUNDATIONS: ........ SPREAD FTG ON BEARING MAT'L

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

ABUTMENT / PIER MAT'L: ... CONCRETE

PROJ./PLAN REF. NO: ......... 100A2,100A19 / 1433

NPS ROAD CLASS: .............. 7 - URBAN PARKWAY

STRUCTURE HISTORY: ...... 1985-PARTIAL DEPTH DECK REPAIRS.

LOCATION

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:

377.8 FT (115.2 M)

150.0 FT (45.7 M)

71.5 FT (21.8 M)

60.5 FT (18.4 M)

44 °

NO

GEORGE WASHINGTON MEMORIAL PARKWAY MILE POINT: ..................... 3.44 (KM PT 5.54)

STATE: ................................. MARYLAND LOCATION: 1.6 MILES SOUTH OF I-495.

FACILITY CARRIED: ............ CLARA BARTON PKWY

FEATURE INTERSECTED: .. CABIN JOHN CREEK & CABIN JOHN PKW

STRUCTURE EVALUATION SUMMARY

This concrete frame bridge is in fair condition overall. The main problem at this time is the continuing deterioration of the deck expansion joint assemblies. The joints have been paved over but not repaired. Sections of the aluminum extrusion for the expansion joints have detached from the adjacent concrete due to anchorage failure in the past and the remaining sections should be removed. The adjacent asphalt patching and deteriorated concrete should be removed from the deck surface, the rebar cleaned, and new concrete joint headers and expansion joint assemblies installed. The failure of the expansion joint assemblies has lead to accelerated deterioration of the substructure concrete with cracking, delamination, and spalling of the abutments and the ends of the box girders.

In addition, cracking, spalling, and delamination of the deck underside is indicative of water intrusion through the deck concrete. The impressed current deck corrosion protection system is no longer functioning and is in disrepair. The modified concrete wearing surface should be sealed to prevent further intrusion and slow the rate of deterioration of the concrete. 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: M.R. PUTALLAZ, L.M. MUELLER (CLARK NEXSEN)

CONDITION ASSESSMENT:

MICHAEL R. PUTALLAZ, FIELD TEAM LEADER

REPORT REVIEW:

GARY J. GOODLIN, FIELD TEAM LEADER 703-404-6253

REPORT APPROVAL: DATE: 8/17/11

MARCUS MILLER, P.E., LEAD STRUCTURAL ENGINEER 703-404-6252

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 3300-033P

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.

222.4 REPAVE APPROACHES; SEAL CRACKING IN MEANTIME. 2 EA

58.6,8 CLEAN AND SPOT PAINT RAILINGS AND UTILITY ACCESS COVER PLATES IN

SIDEWALKS AS NEEDED.

100 LF

58.7, 59.2, 60.7

CLEAN CLOGGED DECK DRAINS AND ABUTMENT WEEP HOLES. REDIRECT WEST

BOX GIRDER DRAIN AT SOUTH ABUTMENT TO PREVENT DRAINAGE ON

BEARINGS.

1 LS

58.3 RESTRIPE PAVEMENT MARKINGS ON WEARING SURFACE. 1 LS

58, 60 REMOVE VEGETATION GROWTH FROM STRUCTURE. 1 LS

PRELIM. MAINTENANCE TOTAL :

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS)

QTY. UNIT

UNIT

COST ESTIMATES

PRELIM. COST

REHAB. RECONSTR.

58.1,2 REPLACE DECK EXPANSION JOINT ASSEMBLIES THROUGHOUT.

REPAIR ADJACENT CONCRETE.

200 LF

58.3 CLEAN AND SEAL MODIFIED CONCRETE WEARING SURFACE. 22,869 SF

58.1, 59.2,4, 60.1

REMOVE UNSOUND CONCRETE FROM DECK UNDERSIDE,

SUPERSTRUCTURE, AND ABUTMENT BREASTWALLS, CLEAN

REBAR, AND PLACE NEW CONCRETE TO ORIGINAL DIMENSIONS.

300 SF

60.9,17 PLACE ENGINEERED RIPRAP AT PIER COLUMNS AND SOUTH

ABUTMENT TO PREVENT ADDITIONAL EROSION.

30 CY

58.8 REPAIR AND RESET IMPRESSED CURRENT CORROSION

PROTECTION SYSTEM RECTIFIER BOXES AND CONDUITS FALLEN

FROM NORTH ABUTMENT BREASTWALL IF OPERATIONAL.

1 LS

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 the recommended actions will be combined with similar work being performed on other structures.

FIELD INSPECTION REPORT STRUCTURE NO. 3300-033P

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

N NOT APPLICABLE 3 SERIOUS CONDITION - loss of section, deterioration, spalling, or scour have seriously affected primary structural components. Local failures are possible.

9 EXCELLENT CONDITION Fatigue cracks in steel or shear cracks in concrete may be present.

8 VERY GOOD CONDITION - no problems noted. 2 CRITICAL CONDITION - advanced deterioration of primary structural elements. Fatigue cracks in steel or shear cracks in concrete may be present

7 GOOD CONDITION - some minor problems. or scour may have removed substructure support. Unless closely monitored it may be necessary to close the structure until corrective action can be taken.

6 SATISFACTORY CONDITION - structural elements show some minor deterioration. 1 “IMMINENT” FAILURE CONDITION - major deterioration or section loss present in critical structural components or obvious vertical or horizontal

5 FAIR CONDITION - all primary structural elements are sound but may have movement affecting structure stability. Structure is closed to traffic but minor section loss, cracking, spalling, or scour. corrective action may return structure to light service.

4 POOR CONDITION - advanced section loss, deterioration, spalling, or scour. 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 ITEM REFERENCE AND REMARKS

F1. DECK SLAB

P PARTIAL DEPTH DECK REPLACEMENT IN 1985; UNDERSIDE 58.1 2. EXPANSION JOINTS

CONCRETE IS FROM ORIGINAL 1963 DECK. MINOR TRANSVERSE F3. WEARING SURFACE

F CRACKING WITH EFFLORESCENCE THROUGHOUT DECK 4. RIDEABILITY

F5. CURBS, SIDEWALKS, AND MEDIAN UNDERSIDE. SCATTERED MINOR TO MODERATE AREAS OF

F6. PARAPETS AND/OR RAILINGS DELAMINATION THROUGHOUT UNDERSIDE; FIVE HAVE SPALLED UP

F7. DRAINS AND DRAINAGE TO 2'L X 2'W X 1-1/2"D WITH EXPOSED REBAR. SEVERAL

F8. UTILITIES FULL-DEPTH PATCHES ON DECK UNDERSIDE; FORM FOR ONE

G9. DEFLECTION AND/OR VIBRATION PATCH REMAINS IN CENTER SPAN.

N10. OTHER

59. SUPERSTRUCTURE 6 MINOR VERTICAL CRACKING WITH EFFLORESCENCE ON DECK

SIDES, EXTENDING INTO OVERHANGS. MINOR AREAS OF G1. BEARING DEVICES

DELAMINATION ON UNDERSIDE OF OVERHANGS; SOME AREAS F2. GIRDERS OR BEAMS

HAVE SPALLED WITH EXPOSED REBAR. N3. ARCH(ES) OR SLAB(S)

F4. FLOOR BEAMS AND STRINGERS

MINOR RANDOM CRACKING OF CONCRETE WEARING SURFACE; 58.2,3,4 N5. TRUSSES

MINOR SCALING WITH EXPOSED AGGREGATE. MODERATE G6. DIAPHRAGMS AND BRACING

DELAMINATION OF WEARING SURFACE ADJACENT TO EXPANSION N7. PAINT

JOINTS IN SEVERAL AREAS. MINOR SPALLING PATCHED WITH N8. FASCIA(E)

ASPHALT, NORTHBOUND AND SOUTHBOUND LANES AT SOUTH G9. DEFLECTION AND/OR VIBRATION

EXPANSION JOINT; MODERATE CRACKING AND ISOLATED FAILURE G10. ALIGNMENT

OF ASPHALT PATCHING. PAVEMENT MARKINGS ON WEARING N11. OTHER

SURFACE FADED. 60. SUBSTRUCTURE 6

ABUTMENTS

NORTH AND SOUTH EXPANSION JOINT ASSEMBLIES EXHIBIT

SEVERE LOSS OF ANCHORAGE INTO DECK AND ABUTMENT

BACKWALLS DUE TO ADJACENT CONCRETE DETERIORATION.

SECTIONS OF JOINT ASSEMBLY COMPLETELY MISSING AND GAPS

PATCHED WITH ASPHALT. ADDITIONAL SECTIONS LOOSE AND

COULD DEFLECT INTO TRAFFIC. MODERATE ACCUMULATION OF

DEBRIS IN DECK JOINTS.

BREASTWALLS OR COLUMNS1. F

PILE BENTS2. N

CAPS AND/OR BEARING SEATS3. F

BACKWALLS AND/OR BULKHEADS4. G

FOUNDATIONS5. N

WINGWALLS6. G

WEEP HOLES7. F

EXPANSION JOINTS8. N

EROSION AND/OR SCOUR9. F

SETTLEMENT OR DEFLECTION10. G

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. F

SETTLEMENT OR DEFLECTION18. G

OTHER 19. N

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 8

G G N G N

MED

SUFF

30 FT.

SAND, ROCK

222. APPROACHES 6

OTHER 9.

ALIGNMENT 8.

SIGNS7.

SETTLEMENT 6.

EROSION5.

SURFACING4.

APPROACH GUARDRAIL 3.

2. RELIEF JOINTS

APPROACH SLABS1. N

N N F G G G 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. 1

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.

58.5 WIDESPREAD MODERATE TRANSVERSE CRACKING OF SIDEWALKS,

HEAVIEST AT PIERS. MINOR SCALING IN SEVERAL LOCATIONS.

MINOR SPALL IN TOP OF SIDEWALK NEAR NORTH PIER BEHIND

RAIL POST. MODERATE RUSTING OF ACCESS PLATES IN

SIDEWALKS; PLATES RAISED UP TO 1". MODERATE SPALLING OF

WEST SIDEWALK AT SOUTH APPROACH. VEGETATION HAS BEEN

CLEARED FROM EAST SIDEWALK AT NORTH APPROACH.

MINOR COVER SPALLS ON SIDE OF WEST SIDEWALK OVERHANG

AT SOUTH APPROACH. MINOR TRANSVERSE CRACKING WITH

EFFLORESCENCE ON UNDERSIDE OF APPROACH SIDEWALK

OVERHANGS.

MINOR VEHICLE SCRAPES ON FACES OF MEDIAN THROUGHOUT

WITH MINOR SPALLING AT ONE LOCATION, WEST SIDE OF MEDIAN

IN NORTH SPAN.

58.6 MINOR RUSTING OF RAILINGS, HEAVIEST AT SPLICES, BASE

PLATES, AND ALONG TOP RAILS; UP TO 40% SECTION LOSS TO

ANCHOR BOLT NUT IN CENTER SPAN NEAR SOUTH PIER ON EAST

SIDE. MODERATE CRACK ACROSS BASE OF SECOND RAIL POST

FROM NORTH EXPANSION JOINT, WEST SIDE. TREE LIMBS

OVERHANGING RAILING ON BOTH SIDES.

58.7 ONE OF TWO DECK DRAINS CLOGGED AT WEST CURB IN

SOUTHBOUND LANE AND MEDIAN CURB IN NORTHBOUND LANE.

58.8 IMPRESSED CURRENT CORROSION PROTECTION SYSTEM WITH 2"

DIAMETER CONDUITS ON BOTH SIDES OF STRUCTURE; RECTIFIER

BOXES AND LINES PREVIOUSLY MOUNTED ON NORTH ABUTMENT

BREASTWALL HAVE FALLEN WITH WIRES EXPOSED, CUT, AND

TIGHT.

59.1 BEARINGS TILTED 5º TO 10º (EXPANDED) AT 50º FAHRENHEIT AT

BOTH ABUTMENTS. MINOR RUSTING OF BEARINGS IN SOME

LOCATIONS. SEMI-CIRCULAR SHEAR LOCK RUSTED AND BROKEN

FROM EAST SIDE OF EAST BEARING FOR EAST BOX GIRDER AT

SOUTH ABUTMENT.

ADDITIONAL ITEM REFERENCE AND REMARKS

59.2 MODERATE RUSTING OF BOX GIRDER DRAINS. WEST BOX GIRDER DRAIN AT SOUTH ABUTMENT DIRECTING

DRAINAGE ONTO ADJACENT BEARING.

SOUTH SPAN: MINOR DIAGONAL CRACKING WITH EFFLORESCENCE ON WEST BOX GIRDER ON WEST FACE AND UNDERSIDE. MINOR AREA OF DELAMINATION EXTENDING 2' ONTO UNDERSIDE OF WEST BOX GIRDER FROM SPALL OF STUB STRINGER SHEAR KEY AT SOUTH END (SEE ALSO 59.4). MINOR DIAGONAL CRACK IN EAST FACE

OF EAST BOX GIRDER; MINOR DELAMINATION OVER SOUTH ABUTMENT.

CENTER SPAN: MINOR LONGITUDINAL CRACKING OF BOTH BOX GIRDER UNDERSIDES AT NORTH PIER.

NORTH SPAN: MINOR SPALL WITH EXPOSED REBAR IN WEST BOX GIRDER UNDERSIDE NEAR NORTH PIER.

MODERATE (4'L X 4'W) DELAMINATED AREA ON WEST SIDE OF EAST BOX GIRDER OVER NORTH PIER, DELAMINATION EXTENDS INTO FLOORBEAM. MODERATE (15'L) AREA OF UP TO 1/4"W LONGITUDINAL CRACKING AND DELAMINATION OF WEST BOX GIRDER, EXTENDING 2' ONTO UNDERSIDE AND 1'H ONTO WEST FACE AT NORTH END. MINOR VEHICLE SCRAPES WITH TWO MINOR SPALLS ON EAST FACE OF BOTH BOX GIRDERS OVER

UNDERPASS ROADWAY.

59.4 MINOR CRACKING AND SPALLING WITH RUST STAINING AND EXPOSED REBAR ALONG BOTTOM OF STUB

STRINGER SHEAR KEYS AT SOUTH ABUTMENT. SEE ALSO 59.2.

60.1,7 MINOR VERTICAL CRACKING WITH EFFLORESCENCE AND RUST STAINING ON ABUTMENT BREASTWALLS.

RANDOM AREAS OF MINOR MAP CRACKING WITH EFFLORESCENCE AND RUST STAINING ON SOUTH ABUTMENT BREASTWALL. 10'H X 4'W DELAMINATED AREA NEAR CENTER OF SOUTH ABUTMENT; ADDITIONAL DELAMINATED AREAS PRESENT OVER 20% OF SURFACE AREA WITH MINOR TO MODERATE AREAS OF SPALLING WITH EXPOSED REBAR. MINOR SPALL WITH EXPOSED REBAR ON NORTH ABUTMENT BREASTWALL BELOW WEST BOX GIRDER AT TOP. MINOR DELAMINATION AND SPALLING WITH EXPOSED REBAR ON NORTH ABUTMENT

BREASTWALL BELOW EAST STRINGER AT TOP AND NEAR CENTERLINE.

WEEP HOLES AT ABUTMENT BREASTWALLS RUSTED AND FILLED WITH DEBRIS; RUST STAINING ON

BREASTWALLS.

60.3 MODERATE ACCUMULATION OF DEBRIS ON BEARING SEATS.

60.6 MINOR VERTICAL AND DIAGONAL CRACKING OF WINGWALLS; MINOR EFFLORESCENCE ON SOUTHEAST

WINGWALL. MINOR VEGETATION GROWTH ON NORTHWEST AND SOUTHEAST WINGWALLS; HEAVY ON

NORTHEAST AND SOUTHWEST WINGWALLS, EXTENDING ONTO ABUTMENT BREASTWALLS AND RAILINGS

ABOVE.

60.9 MINOR EROSION OF SOUTH ABUTMENT SLOPE, PRIMARILY TOWARD WEST END.

60.17 MINOR EROSION ADJACENT TO PIER COLUMNS; RIPRAP AT EAST COLUMN OF NORTH PIER.

222.4 MINOR TO MODERATE RANDOM CRACKING OF APPROACH PAVEMENT. MINOR POTHOLE IN NORTHBOUND LANE

OF NORTH APPROACH AT ABUTMENT BACKWALL.

222.6 MINOR SETTLEMENT (UP TO 1/2") OF NORTH APPROACH PAVEMENT. MODERATE DROP-OFF (10") AT END OF

WEST CURB, SOUTH APPROACH.

ADDITIONAL ITEM REFERENCE AND REMARKS

222.7 TYPE 3 OBJECT MARKER PRESENT AT NORTHWEST CORNER OF STRUCTURE.

STRUCTURE LOAD RATING STRUCTURE NO. 3300-033P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 20 18 33 30

HS 36 33 59 54

TYPE 3 36 33 60 54

TYPE 3S2 40 36 67 61

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.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 3300-033P

STRUCTURE IDENTIFICATION

(201) PARK: GEORGE WASHINGTON MEMORIAL PARKWAY (1) STATE: ....................................... 243 - MARYLAND (MD)

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

(203) STRUCTURE KIND: ............ 1 - BRIDGE (3) COUNTY CODE: ........................ 031 - MONTGOMERY

(204) STRUCTURE NUMBER: ..... 3300-033P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 6 (6) FEATURES INTERSECTED:....... CABIN JOHN CREEK & CABIN

(207) ROAD SECTION NO: .......... 033P (7) FACILITY CARRIED: .................. CLARA BARTON PKWY

(208) NPS ROAD CLASS: ............ 7 - URBAN PARKWAY (8) STATE STRUCTURE NO: .......... 3300033P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 1.6 MILES SOUTH OF I-495.

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

(211) PROJECT NO(S): ................ 100A2,100A19 (11) MILE POINT: ............................. 3.44 (KM PT 5.54)

(212) DRAWING NUMBERS: ....... 1433 (27) YEAR BUILT:

(21) MAINTAINED BY: ................. 66 - NATIONAL PARK SERVICE (106) YEAR RECONSTRUCTED:

(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

07 - FRAME

150.0 FT (45.7 M)

377.8 FT (115.2 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: .. 3 - MODIFIED 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: ...... 36.0 TONS (33.0 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

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

INSPECTION DATES

(90) INSPECTION DATE: 4/11 (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. 3300-033P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 38°58'16.00"

(17) LONGITUDE: ......................... 77°08'53.00"

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

(28A) LANES ON STRUCT:

(28B) LANES UNDER STRUCT: ... 02

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

(42B) SERVICE UNDER: .............. 6 - HIGHWAY-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: ....................... 18.0 FT (5.5 M)

(56) LEFT: ......................... 8.5 FT (2.6 M)

(51) CURB TO CURB WIDTH: ........... 60.5 FT (18.4 M)

(52) DECK WIDTH: ............................ 71.5 FT (21.8 M)

(32) APPR. ROADWAY WIDTH: ........ 56.0 FT (17.1 M)

(213) APPR. PAVEMENT WIDTH: ..... 56.0 FT (17.1 M)

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

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

(33) BRIDGE MEDIAN: ....................... 2 - CLOSED MEDIAN (no barrier

(34) SKEW ANGLE: ............................ 44 °

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

(47) TOTAL HORIZ. CLEARANCE: .... 60.5 FT (18.4 M)

(50) SIDEWALKS:

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

RIGHT : ................................... 4.5 FT (1.4 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: 14.42 FT (4.40 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: ... 1NNN

(75A) TYPE OF WORK: .............. 35 - GENERAL REHAB

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

(76) IMPROVEMENT LENGTH: .. 378.0 FT (115.2 M)

(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:

8 - Stable; scour above top of fo

2 - REHAB/RECONSTRUCTION

C - MODERATE

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1985-PARTIAL DEPTH DECK REPAIRS.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

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APPENDIX STRUCTURE NO. 3300-033P

PHOTOGRAPHS STRUCTURE NO. 3300-033P

PHOTO #1 - LOOKING SOUTHBOUND TOWARD GEORGETOWN

FLOW

PHOTO #2 - WEST (DOWNSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW

LOOKING NORTH

PHOTO #4 - TYPICAL CRACKING AND

DELAMINATION OF CONCRETE WEARING

SURFACE ADJACENT TO EXPANSION JOINTS;

SOUTHBOUND LANES AT SOUTH EXPANSION

JOINT SHOWN; ALSO NOTE SPALLING OF

WEARING SURFACE PATCHED WITH ASPHALT

PHOTO #5 - SECTIONS OF SOUTH EXPANSION

JOINT COMPLETELY MISSING AND GAPS

PATCHED WITH ASPHALT; NORTHBOUND

LANES SHOWN; NOTE DETERIORATION OF

PATCHING

PHOTO #6 - SECTIONS OF NORTH EXPANSION

JOINT COMPLETELY MISSING AND GAPS

PATCHED WITH ASPHALT; SOUTHBOUND

LANES SHOWN; NOTE DETERIORATION OF

PATCHING

PHOTO #7 - TYPICAL FADED PAVEMENT

MARKINGS ON WEARING SURFACE;

SOUTHBOUND LANES SHOWN

PHOTO #8 - SPALLING OF WEST SIDEWALK AT

SOUTH APPROACH

PHOTO #9 - TYPICAL RUSTING OF ACCESS PLATES IN SIDEWALKS;

EAST SIDEWALK IN SOUTH SPAN SHOWN; NOTE ACCESS PLATE

RAISED

PHOTO #10 - TYPICAL RUSTING OF RAILINGS; WEST RAILING IN

CENTER SPAN SHOWN

PHOTO #11 - CRACK ACROSS BASE OF

SECOND RAIL POST FROM NORTH

EXPANSION JOINT, WEST RAILING

PHOTO #12 - CLOGGED DECK DRAIN AT WEST

CURB IN SOUTHBOUND LANE

PHOTO #13 - TYPICAL RANDOM CRACKING OF

APPROACH PAVEMENT; NORTHBOUND LANES

AT SOUTH APPROACH SHOWN

PHOTO #14 - TREE LIMBS OVERHANGING

RAILING ON WEST SIDE

PHOTO #15 - GENERAL UNDERSIDE VIEW

LOOKING NORTH, CENTER SPAN

PHOTO #16 - TYPICAL TRANSVERSE

CRACKING OF DECK UNDERSIDE; SOUTH

SPAN SHOWN

PHOTO #17 - TYPICAL AREAS OF SPALLING

WITH EXPOSED REBAR ON DECK UNDERSIDE;

CENTER SPAN NEAR NORTH PIER SHOWN

PHOTO #18 - SEMI-CIRCULAR SHEAR LOCK

RUSTED AND BROKEN FROM EAST BEARING

FOR EAST BOX GIRDER AT SOUTH ABUTMENT

PHOTO #19 - TYPICAL BEARING EXPANSION AT ABUTMENTS; WEST

BEARING FOR WEST BOX GIRDER AT NORTH ABUTMENT SHOWN;

ALSO NOTE TYPICAL RUSTING OF BEARINGS

PHOTO #20 - LONGITUDINAL CRACK AND DELAMINATION ON WEST

BOX GIRDER AT NORTH END OF NORTH SPAN

PHOTO #21 - DELAMINATED AREA ON WEST SIDE OF EAST BOX

GIRDER OVER NORTH PIER IN NORTH SPAN; DELAMINATION EXTENDS

INTO FLOOR BEAM

PHOTO #22 - TYPICAL SPALLING WITH EXPOSED REBAR ON BOTTOM

OF STUB STRINGER SHEAR KEYS AT SOUTH ABUTMENT; WEST STUB

STRINGER SHEAR KEY SHOWN

PHOTO #23 - WEST BOX GIRDER DRAIN AT SOUTH ABUTMENT

DIRECTING DRAINAGE ONTO ADJACENT BEARING; ALSO NOTE

TYPICAL RUSTING OF DRAINS

PHOTO #24 - GENERAL VIEW OF NORTH ABUTMENT

PHOTO #25 - RECTIFIER BOXES AND LINES

PREVIOUSLY MOUNTED ON NORTH

ABUTMENT BREASTWALL HAVE FALLEN WITH

WIRES EXPOSED; WEST END OF NORTH

ABUTMENT SHOWN

PHOTO #26 - TYPICAL VERTICAL CRACKING

OF ABUTMENT BREASTWALLS WITH

EFFLORESCENCE AND RUST STAINING;

NORTH ABUTMENT BREASTWALL NEAR

CENTERLINE SHOWN

PHOTO #27 - DELAMINATION AND SPALLING WITH EXPOSED REBAR

ON NORTH ABUTMENT BREASTWALL BELOW EAST STRINGER AT TOP

PHOTO #28 - TYPICAL MAP CRACKING WITH EFFLORESCENCE AND

RUST STAINING ON SOUTH ABUTMENT BREASTWALL; BREASTWALL

NEAR CENTERLINE SHOWN; ALSO NOTE TYPICAL DELAMINATION AND

PHOTO #29 - TYPICAL ACCUMULATION OF

DEBRIS ON BEARING SEATS; SOUTH

ABUTMENT SHOWN

PHOTO #30 - VEGETATION GROWTH ON

NORTHEAST WINGWALL

PHOTO #31 - EROSION OF SOUTH ABUTMENT SLOPE, PRIMARILY

TOWARD WEST END

PHOTO #32 - GENERAL VIEW OF NORTH PIER, SOUTH SIDE

PHOTO #33 - EROSION WITH RIPRAP AT EAST COLUMN OF NORTH

PIER

PHOTO #34 - LOOKING UPSTREAM THROUGH STRUCTURE, CENTER

SPAN

PHOTO #35 - LOOKING DOWNSTREAM THROUGH STRUCTURE,

CENTER SPAN