Birdge_Insp_Rpt_5140-181P.pdf

BRIDGE INSPECTION REPORT

UNDERGROUND STREAM BRIDGE

BLUE RIDGE PARKWAY OVER UNDERGROUND STREAM

BLUE RIDGE PARKWAY

LS

STRUCTURE NO. 5140-181P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 6/23/11

Report prepared by: ED

MILE POINT: 303.77

Federal Highway Administration KILOMETER POINT: 488.86 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. 5140-181P

UNDERGROUND STREAM BRIDGE INSPECTION DATE: 6/23/11

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:

CONCRETE

SLAB

CONCRETE CAST-IN-PLACE

MONOLITHIC CONCRETE

N/A

N/A

CONCRETE

0002H10 / 00000

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:

340.0 FT (103.6 M)

0.0 FT (0.0 M)

39.0 FT (11.9 M)

34.3 FT (10.5 M)

N/A

0 °

NO

LOCATION

BLUE RIDGE PARKWAY MILE POINT: ..................... 303.77 (KM PT 488.86)

STATE: ................................. NORTH CAROLINA LOCATION: 1.35 MILES FROM U.S. ROUTE 22

FACILITY CARRIED: ............ BLUE RIDGE PARKWAY

FEATURE INTERSECTED: .. UNDERGROUND STREAM

STRUCTURE EVALUATION SUMMARY

This concrete slab bridge is in good condition overall. Problems include missing stones in the west rail exposing the sand and rock filling the rails and deterioration of parapet mortar joints. Since the previous inspection, the settlement at both of the approaches has been repaired using transition slabs. The south transition slab has a moderate crack near the west parapet.

Corrective action should be taken as outlined in this report to prevent the possible development of more serious or costly problems in the future.

INSPECTION TEAM: J. THOMAS, R. TAYLOR (VOLKERT, INC.)

CONDITION ASSESSMENT:

JOE THOMAS, P.E., FIELD TEAM LEADER

REPORT REVIEW:

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

REPORT APPROVAL: DATE: 12/19/11

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5140-181P

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.

58.6, 222.3 REPLACE MISSING MASONRY STONES IN WEST RAIL. REPOINT MASONRY JOINTS

AS NECESSARY.

2 CY

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: Cost estimates assume that recommended actions will be combined with similar work being performed on other structures.

FIELD INSPECTION REPORT STRUCTURE NO. 5140-181P

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 7 ITEM REFERENCE AND REMARKS

G1. DECK SLAB

G2. EXPANSION JOINTS

G3. WEARING SURFACE

G4. RIDEABILITY

N5. CURBS, SIDEWALKS, AND MEDIAN

F6. PARAPETS AND/OR RAILINGS

G7. DRAINS AND DRAINAGE

N8. UTILITIES

G9. DEFLECTION AND/OR VIBRATION

N10. OTHER

59. SUPERSTRUCTURE 7

N

2. GIRDERS OR BEAMS

1. BEARING DEVICES

N

G3. ARCH(ES) OR SLAB(S)

N4. FLOOR BEAMS AND STRINGERS

N5. TRUSSES

N6. DIAPHRAGMS AND BRACING

N7. PAINT

N8. FASCIA(E)

G9. DEFLECTION AND/OR VIBRATION

G10. ALIGNMENT

N11. OTHER

60. SUBSTRUCTURE N

58.1, 59.3 MINOR TRANSVERSE CRACKING OF SLAB SURFACE WITH MINOR

LONGITUDINAL CRACKING. MINOR MAP CRACKING OF SLAB

SURFACE. MINOR CRACKING WITH EFFLORESCENCE ON EDGES

OF SLAB. MINOR SPALLING OF SLAB SURFACE. EFFLORESCENCE

FROM WEST CURBLINE IS RUNNING ACROSS DECK TO EAST

CURBLINE AT SEVERAL LOCATIONS.

58.2 OPEN VERTICAL JOINTS BETWEEN PARAPET SECTIONS.

58.4, 222.1,4,6

SETTLEMENT AT APPROACHES HAS BEEN REPAIRED USING

TRANSITION SLABS.

58.6 MODERATE CRACKING AND DETERIORATION OF MORTAR JOINTS

WITH EFFLORESCENCE AND MINOR VEGETATION GROWTH.

EFFLORESCENCE AND SAND IS LEACHING INTO CURBLINES AND

ONTO SIDES OF DECK. TWO STONES ARE MISSING FROM WEST

RAIL, APPROXIMATELY 40' FROM SOUTH END OF BRIDGE AND 100'

FROM SOUTH END OF BRIDGE, EXPOSING SAND AND ROCK WHICH

FILLS RAILS.

ABUTMENTS

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

11.

10.

9.

8.

7.

6.

5.

4.

3.

2.

1.

12.

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

INSPECTION DATE: 6/23/11

STRUCTURE NO. 5140-181P FIELD INSPECTION REPORT

UNDERGROUND STREAM BRIDGE

ITEM REFERENCE AND REMARKS

AVERAGE CLEAR OPENING 8.

NORMAL VELOCITY 7.

ADEQUACY OF OPENING 6.

OTHER 5.

WATERWAY OBSTRUCTIONS 4.

CHANNEL PROTECTION 3.

EROSION AND/OR SCOUR 2.

1. ALIGNMENT

61. CHANNEL 8

G G G G N

9. STREAM BED COMPOSITION :

STONES

222. APPROACHES 7

OTHER 9.

ALIGNMENT 8.

SIGNS 7.

SETTLEMENT 6.

EROSION 5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS 2.

1. APPROACH SLABS

(TRANSITION SLAB)

G N F G G G N G G

223. RETAINING WALL N

OTHER 6.

SETTLEMENT OR DEFLECTION 5.

EROSION AND/OR SCOUR 4.

FOUNDATION 3.

WEEP HOLES 2.

1. WALL

36. TRAFFIC AND SAFETY FEATURES

APPROACH GUARDRAIL ENDS D.

APPROACH GUARDRAILS C.

TRANSITIONS B.

BRIDGE RAILINGSA. 1

222.3 MODERATE DETERIORATION OF VERTICAL JOINT FILLER.

MODERATE TO SEVERE CRACKING OF MORTAR JOINTS WITH

VEGETATION GROWTH. LOOSE STONES ON NORTHWEST

APPROACH PARAPET, POSSIBLY BUCKLED BY THERMAL

MOVEMENT.

222.9 MODERATE CRACK UP TO 1.5' LONG IN SOUTH TRANSITION SLAB

NEAR EAST PARAPET. NORTH TRANSITION SLAB HAS MINOR

LONGITUDINAL CRACKS.

36.D GUARDRAIL ENDS DO NOT MEET AASHTO STANDARDS.

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. 5140-181P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 20 18 33 30

HS 36 33 60 55

TYPE 3 59 54 99 90

TYPE 3S2 62 57 104 95

TYPE 3-3 64 58 107 97

DESIGN LOADING: HS20 (MS18)

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. 5140-181P

STRUCTURE IDENTIFICATION

(201) PARK: BLUE RIDGE PARKWAY (1) STATE: ....................................... 374 - NORTH CAROLINA (NC)

(202) STRUCTURE NAME: .......... UNDERGROUND STREAM BRIDGE (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............ 1 - BRIDGE (3) COUNTY CODE: ........................ 011 - AVERY

(204) STRUCTURE NUMBER: ..... 5140-181P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 1 (6) FEATURES INTERSECTED:....... UNDERGROUND STREAM

(207) ROAD SECTION NO: .......... 181P (7) FACILITY CARRIED: .................. BLUE RIDGE PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5140181P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 1.35 MILES FROM U.S. ROUT

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

(211) PROJECT NO(S): ................ 0002H10 (11) MILE POINT: ............................. 303.77 (KM PT 488.86)

(212) DRAWING NUMBERS: ....... 00000 (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

01 - SLAB

0.0 FT (0.0 M)

340.0 FT (103.6 M)

6 - N/A

6 - N/A

6 - N/A

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?: ..................... NO

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 5 - HS20 (MS18) (41) LOAD RESTRICTION: ......... R - POSTED (OTHER)

(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: 6/11 (91) FREQ. OF INSP: 48 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. :

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5140-181P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(51) CURB TO CURB WIDTH: ........... 34.3 FT (10.5 M)

(16) LATITUDE: ............................. 36°05'57.60"

(17) LONGITUDE: ......................... 81°48'41.04"

(19) DETOUR LENGTH: ............... 10 MI (16 KM)

(28A) LANES ON STRUCT:

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

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

(42B) SERVICE UNDER: .............. 0 - OTHER

(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)

CONDITION AND APPRAISAL DATA, PROPOSED IMPROVEMENTS, AND COST

(58) DECK:

(59) SUPERSTRUCTURE:

(60) SUBSTRUCTURE: .............. N

(61) CHANNEL:

(62) CULVERT: ........................... N

(222) APPROACHES:

(223) RETAINING WALL: ........... N

(36) TRAFFIC SAFETY FEAT: ... 1111

(75A) TYPE OF WORK:

(75B) WORK DONE BY:

(76) IMPROVEMENT LENGTH: ..

(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:

39.0 FT (11.9 M)

25.0 FT (7.6 M)

24.9 FT (7.6 M)

0.0 FT (0.0 M)

4.0 FT (1.2 M)

0 - NO MEDIAN

0 °

NO

34.3 FT (10.5 M)

3 - PARAPET ONLY

9 - OTHER

1 - CONTINUOUS RAIL

2.75 FT (0.84 M)

99.99 FT (99.99 M)

0.00 FT (0.00 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:

N

N

N - Not over waterway.

1 - MAINTENANCE

D - MINOR

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

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APPENDIX STRUCTURE NO. 5140-181P

PHOTOGRAPHS STRUCTURE NO. 5140-181P

PHOTO #1 - LOOKING NORTHBOUND TOWARD BLOWING ROCK

FLOW

PHOTO #2 - WEST (UPSTREAM) SIDE

PHOTO #3 - GENERAL TOP SIDE VIEW LOOKING NORTH

PHOTO #4 - SOUTHEAST PARAPET END NOT TERMINATED SAFELY

PHOTO #5 - GENERAL VIEW OF SOUTH

TRANSITION SLAB

PHOTO #6 - CRACK ON EAST SIDE OF SOUTH

PHOTO #7 - TYPICAL DETERIORATION OF MORTAR JOINTS, WEST

PARAPET NEAR SOUTH ABUTMENT SHOWN

PHOTO #8 - CRACKING WITH EFFLORESCENCE ON WEST EDGE OF

SLAB, NEAR SOUTH ABUTMENT

PHOTO #9 - TYPICAL CRACKING WITH EFFLORESCENCE ON EDGES OF

SLAB, NEAR WEST PARAPET AT SOUTH END SHOWN

PHOTO #10 - MISSING STONE FROM WEST PARAPET APPROXIMATELY

100' FROM SOUTH ABUTMENT

PHOTO #11 - MISSING STONE FROM WEST PARAPET APPROXIMATELY

40' FROM SOUTH ABUTMENT

PHOTO #12 - TYPICAL SPALLS ON SLAB SURFACE, WEST SIDE NEAR

MIDSPAN SHOWN

PHOTO #13 - TYPICAL LONGITUDINAL CRACKING OF SLAB SURFACE,

NEAR MIDSPAN SHOWN

PHOTO #14 - TYPICAL TRANSVERSE CRACKING OF SLAB SURFACE,

NEAR MIDSPAN SHOWN

PHOTO #15 - CRACKING WITH

EFFLORESCENCE ON EAST EDGE OF SLAB,

NEAR NORTH ABUTMENT

PHOTO #16 - GENERAL VIEW OF NORTH

PHOTO #17 - TYPICAL CONDITION OF

PARAPET JOINTS, NORTHWEST JOINT SHOWN