Bridge_Inspection_Report_5140-088P.pdf

BRIDGE INSPECTION REPORT

U.S. ROUTE 21 BRIDGE

BLUE RIDGE PARKWAY OVER U.S. ROUTE 21

BLUE RIDGE PARKWAY

LN

STRUCTURE NO. 5140-088P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 6/10/15

Report prepared by: ES

MILE POINT: 229.53

Federal Highway Administration KILOMETER POINT: 369.45 Federal Lands Bridge Office Bridge Inspection and Management Program 21400 Ridgetop Circle Sterling, Virginia 20166 https://bridge.flhd.fhwa.dot.gov

STRUCTURE SUMMARY STRUCTURE NO. 5140-088P

U.S. ROUTE 21 BRIDGE INSPECTION DATE: 6/10/15

BRIDGE IDENTIFICATION AND DESCRIPTION

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

MAIN SPAN TYPE: ............... ARCH - DECK NO. OF APPR. SPANS:

# OF BEAMS, MAIN SPAN: .. 1 STRUCT. TOTAL LENGTH: .. 40.0 FT (12.2 M)

DECK TYPE: ......................... NOT APPLICABLE MAX. SPAN LENGTH: .......... 40.0 FT (12.2 M) WEARING SURFACE: .......... NOT APPLICABLE DECK WIDTH: ...................... 35.0 FT (10.7 M) ABUT. FOUNDATIONS: ........ SPREAD FTG ON BEARING MAT'L CURB TO CURB WIDTH: ..... 31.0 FT (9.4 M)

PIER FOUNDATION(S): ........ N/A YEAR BUILT:

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

PROJ./PLAN REF. NO: ......... 2B3 / 1011C SKEW ANGLE: ..................... 27 °

NPS ROAD CLASS: .............. 1 - PRINCIPAL PARK ROAD FRACTURE CRITICAL: ........ NO

STRUCTURE HISTORY: ...... 1983-JOINT REPAIR.

LOCATION

BLUE RIDGE PARKWAY MILE POINT: ..................... 229.53 (KM PT 369.45)

STATE: ................................. NORTH CAROLINA LOCATION: 18.4 MILES FROM NC ROUTE 18

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

FEATURE INTERSECTED: .. U.S. ROUTE 21

STRUCTURE EVALUATION SUMMARY

This concrete arch bridge is in good condition overall. Problems include minor cracking with efflorescence on the underside of the arch, efflorescence on the ring stones and wingwalls, leakage and deterioration of joint filler material at the vertical joints between wingwalls and abutments, and exposed rebar due to insufficient cover in the arch underside.

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

INSPECTION TEAM: M. REGER, H. SALAD

CONDITION ASSESSMENT:

MICHAEL REGER, P.E., FIELD TEAM LEADER 703-948-1424

REPORT REVIEW:

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

REPORT APPROVAL: DATE: 12/31/15

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5140-088P

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, 60.8 REPLACE JOINT FILLER MATERIAL AT PARAPET JOINTS AND

WINGWALL/ABUTMENT VERTICAL JOINTS.

80 LF

59.3 CLEAN AND SEAL EXPOSED REBAR IN ARCH UNDERSIDE NEAR MIDSPAN AND

NORTHWEST CORNER.

2 SF

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. 5140-088P

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 N ITEM REFERENCE AND REMARKS

N1. DECK SLAB

N2. EXPANSION JOINTS

G3. WEARING SURFACE

G4. RIDEABILITY

N5. CURBS, SIDEWALKS, AND MEDIAN

G6. PARAPETS AND/OR RAILINGS

G7. DRAINS AND DRAINAGE

N8. UTILITIES

N9. 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

G8. FASCIA(E)

G9. DEFLECTION AND/OR VIBRATION

G10. ALIGNMENT

N11. OTHER

60. SUBSTRUCTURE 7

58.3 MINOR CRACKING OF PAVEMENT OVER STRUCTURE.

58.6 MINOR DETERIORATION OF MASONRY MORTAR JOINTS WITH MINOR

VEGETATION GROWTH.

58.6, 60.8 EXPANSION JOINT MATERIAL IS SEVERELY DETERIORATED IN

PARAPET JOINTS AND WINGWALL/ABUTMENT VERTICAL JOINTS.

MINOR LEAKAGE AT VERTICAL JOINTS BETWEEN WINGWALLS AND

ABUTMENTS.

59.3, 8 MINOR CRACKING WITH EFFLORESCENCE ON UNDERSIDE OF

ARCH, MAINLY NEAR JOINTS WITH FASCIA. MODERATE (2' LONG)

SPALL WITH EXPOSED REBAR DUE TO INADEQUATE COVER NEAR

NORTHWEST CORNER. MINOR SPALL WITH EXPOSED REBAR DUE

TO INADEQUATE COVER NEAR MIDSPAN. MODERATE TO SEVERE

EFFLORESCENCE ON RING STONES. RANDOMLY LOCATED

EXPOSED REBAR CHAIRS ON ARCH UNDERSIDE.

60.6 MINOR EFFLORESCENCE ON WINGWALLS; MINOR VEGETATION

GROWTH ON WINGWALLS.

ABUTMENTS

BREASTWALLS OR COLUMNS1. G

PILE BENTS 2. N

CAPS AND/OR BEARING SEATS 3. N

BACKWALLS AND/OR BULKHEADS 4. N

FOUNDATIONS 5. N

WINGWALLS 6. G

WEEP HOLES7. G

EXPANSION JOINTS 8. P

EROSION AND/OR SCOUR9. G

SETTLEMENT OR DEFLECTION10. G

SLOPE PROTECTION11. N

OTHER 12. N

PIER(S)

WALLS AND/OR COLUMNS 13. N

PILE BENTS 14. N

CAPS AND/OR BEARING SEATS 15. N

FOUNDATIONS 16. N

EROSION AND/OR SCOUR17. N

SETTLEMENT OR DEFLECTION18. N

OTHER 19. N

FIELD INSPECTION REPORT STRUCTURE NO. 5140-088P

ITEM REFERENCE AND REMARKS

STREAM BED COMPOSITION : 9.

AVERAGE CLEAR OPENING8.

NORMAL VELOCITY 7.

ADEQUACY OF OPENING6.

OTHER 5.

WATERWAY OBSTRUCTIONS 4.

CHANNEL PROTECTION3.

EROSION AND/OR SCOUR2.

ALIGNMENT1.

61. CHANNEL N

222. APPROACHES 7

OTHER 9.

ALIGNMENT8.

SIGNS 7.

SETTLEMENT6.

EROSION5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS2.

1. APPROACH SLABS N

N N G G G 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 ENDS D.

APPROACH GUARDRAILS C.

TRANSITIONS B.

BRIDGE RAILINGSA. 1

N

222.4 ASPHALT PATCH IN NORTHBOUND LANE NEAR NORTH ABUTMENT.

222.6 MINOR SETTLEMENT BETWEEN PARAPET AND PAVEMENT OVER

BOTH ABUTMENTS.

222.7 OBJECT MARKERS PROVIDED AT CORNERS OF BRIDGE ALONG

UNDERPASS ROADWAY.

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. 5140-088P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 15 14 25 23

HS 21 19 35 31

TYPE 3 19 17 31 28

TYPE 3S2 29 26 48 44

TYPE 3-3 36 33 60 54

DESIGN LOADING: H15 (M13.5)

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. 5140-088P

STRUCTURE IDENTIFICATION

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

(202) STRUCTURE NAME: .......... U.S. ROUTE 21 BRIDGE (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............1 - BRIDGE (3) COUNTY CODE: ........................ 005 - ALLEGHANY

(204) STRUCTURE NUMBER: ..... 5140-088P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 1 (6) FEATURES INTERSECTED:....... U.S. ROUTE 21

(207) ROAD SECTION NO: .......... 088P (7) FACILITY CARRIED: .................. BLUE RIDGE PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5140088P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 18.4 MILES FROM NC ROUTE

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

(211) PROJECT NO(S): ................ 2B3 (11) MILE POINT: ............................. 229.53 (KM PT 369.45)

(212) DRAWING NUMBERS: ....... 1011C (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

11 - ARCH - DECK

40.0 FT (12.2 M)

40.0 FT (12.2 M)

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

6 - N/A

6 - N/A

N - NOT APPLICABLE

(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: .. N - NOT APPLICABLE

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

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

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

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 2 - H15 (M13.5) (41) LOAD RESTRICTION: ......... A - OPEN, NO RESTRICTION

(66) INVENTORY RATING: ...... 20.7 TONS (18.8 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 34.6 TONS (31.4 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 6/15 (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. 5140-088P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 36°26'51.00" (51) CURB TO CURB WIDTH: ........... 31.0 FT (9.4 M)

(17) LONGITUDE: ......................... 81°01'33.10" (52) DECK WIDTH: ............................ 35.0 FT (10.7 M)

(19) DETOUR LENGTH: ............... 20 MI (32 KM) (32) APPR. ROADWAY WIDTH: ........ 30.0 FT (9.1 M)

(28A) LANES ON STRUCT: .......... 02 (213) APPR. PAVEMENT WIDTH: ..... 20.0 FT (6.1 M)

(28B) LANES UNDER STRUCT: ... 02 LEFT SHOULDER: .................. 5.0 FT (1.5 M)

(42A) SERVICE ON: ..................... 1 - HIGHWAY RIGHT SHOULDER: ................ 5.0 FT (1.5 M)

(42B) SERVICE UNDER: .............. 1 - HIGHWAY (33) BRIDGE MEDIAN: ....................... 0 - NO MEDIAN

(29) AVG. DAILY TRAFFIC: .......... 1347 (34) SKEW ANGLE: ............................ 27 °

(30) YEAR OF ADT: ...................... 2013 (35) DECK FLARE?: ........................... NO

(114) FUTURE ADT: ..................... 1482 (47) TOTAL HORIZ. CLEARANCE: .... 30.0 FT (9.1 M)

(115) YEAR OF FUTURE ADT: ..... 2033 (50) SIDEWALKS:

(101) PARALLEL STRUCTURE: ... N - NONE LEFT : ...................................... 0.0 FT (0.0 M)

(38) NAVIGATION CONTROL?: ... N RIGHT : ................................... 0.0 FT (0.0 M)

(39) VERTICAL CLEARANCE: ...... 0.0 FT (0.0 M) (214) BRIDGE RAIL TYPE:

(40) HORIZ. CLEARANCE: ........... 0.0 FT (0.0 M) RAIL CONFIGURATION: ......... 3 - PARAPET ONLY

(111) ABUT. OR PIER PROT: ....... MATERIAL: .............................. 9 - OTHER

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

(55) RIGHT: ....................... 6.8 FT (2.1 M) (215) BRIDGE RAIL HEIGHT: ............ 2.50 FT (0.76 M)

(56) LEFT: ......................... 99.9 FT (99.9 M) (53) MIN. VRT. CLEAR. OVER DECK: 99.99 FT (99.99 M)

(54) MIN. VRT. UNDERCLEARANCE: 15.42 FT (4.70 M)

CONDITION AND APPRAISAL DATA, PROPOSED IMPROVEMENTS, AND COST

(58) DECK: ................................. N

(59) SUPERSTRUCTURE:

(60) SUBSTRUCTURE:

(61) CHANNEL: .......................... N

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

(222) APPROACHES:

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

(36) TRAFFIC SAFETY FEAT: ... 111N

(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

N - Not over waterway.

1 - MAINTENANCE

D - MINOR

$0

$0

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1983-JOINT REPAIR.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

APPENDIX STRUCTURE NO. 5140-088P

PHOTOGRAPHS STRUCTURE NO. 5140-088P

PHOTO #1 - LOOKING SOUTHBOUND TOWARD BLOWING ROCK

PHOTO #2 - WEST SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW LOOKING SOUTH

PHOTO #4 - TYPICAL CRACKING OF WEARING SURFACE OVER

STRUCTURE

PHOTO #5 - TYPICAL TRANSVERSE CRACKING OF WEARING SURFACE

NEAR SOUTH END OF STRUCTURE

PHOTO #6 - GENERAL VIEW OF CLEAR ZONE AND PARAPET END,

SOUTHEAST END SHOWN

PHOTO #7 - TYPICAL CONDITION OF MORTAR JOINTS AND STONES ON

PARAPET WALLS, WEST RAIL NEAR NORTH END SHOWN

PHOTO #8 - SINK HOLE IN SHOULDER ADJACENT TO WEST PARAPET

WALL OVER STRUCTURE

PHOTO #9 - TYPICAL DETERIORATED MORTAR JOINTS ON PARAPETS,

WEST PARAPET SHOWN

PHOTO #10 - GENERAL UNDERSIDE VIEW LOOKING WEST

PHOTO #11 - GENERAL VIEW OF NORTH

ABUTMENT

PHOTO #12 - CRACKING WITH

EFFLORESCENCE ON EAST END OF NORTH

ABUTMENT; NOTE EFFLORESCENCE ON RING

STONES

PHOTO #13 - SPALL WITH EXPOSED REBAR ON ARCH UNDERSIDE

NEAR WEST END OF NORTH ABUTMENT; ALSO NOTE

EFFLORESCENCE ON RING STONES

PHOTO #14 - TYPICAL EXPOSED REBAR CHAIRS ON ARCH UNDERSIDE,

SOUTH SIDE

PHOTO #15 - GENERAL VIEW OF SPALL WITH EXPOSED REBAR ON

UNDERSIDE OF ARCH, NEAR MIDSPAN

PHOTO #16 - TYPICAL CRACKING WITH EFFLORESCENCE ON

UNDERSIDE OF ARCH, WEST SIDE

PHOTO #17 - GENERAL VIEW OF SOUTH ABUTMENT

PHOTO #18 - CRACKING WITH EFFLORESCENCE ON UNDERSIDE OF

ARCH, WEST END OF SOUTH ABUTMENT SHOWN

PHOTO #19 - TYPICAL EFFLORESCENCE

ALONG RING STONES, SOUTHWEST CORNER

SHOWN

PHOTO #20 - GENERAL VIEW OF SOUTHWEST

WINGWALL

PHOTO #21 - TYPICAL CONDITION OF

VERTICAL JOINT FILLER AT SOUTHWEST

WINGWALL

PHOTO #22 - TYPICAL LEAKAGE AND

DETERIORATED JOINT FILLER MATERIAL IN

VERTICAL JOINT, SOUTHWEST JOINT SHOWN

PHOTO #23 - VINE GROWTH IN MORTAR

JOINTS ON SOUTHEAST WINGWALL

PHOTO #24 - TYPICAL LEAKAGE AND

DETERIORATED JOINT FILLER MATERIAL IN

VERTICAL JOINT, NORTHWEST JOINT SHOWN;

NOTE EFFLORESCENCE ON WINGWALL