Bridge_Inspection_Rpt_STR_5140-147P.pdf

TUNNEL INSPECTION REPORT

YOUNG PISGAH RIDGE TUNNEL

BLUE RIDGE PARKWAY THROUGH YOUNG PISGAH RIDGE

BLUE RIDGE PARKWAY

NP

STRUCTURE NO. 5140-147P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 6/13/15

Report prepared by: SP

MILE POINT: 403.05

Federal Highway Administration KILOMETER POINT: 648.63 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. 5140-147P

YOUNG PISGAH RIDGE TUNNEL INSPECTION DATE: 6/13/15

TUNNEL IDENTIFICATION AND DESCRIPTION

LINING MATERIAL: ............... CONCRETE MINIMUM VERTICAL CLR: .... 14.7 FT (4.5 M)

SPRINGLINE LENGTH: ........ 29.0 FT (8.8 M) STRUCT. TOTAL LENGTH: ... 418.0 FT (127.4 M)

CURB TO CURB WIDTH: ..... 29.0 FT (8.8 M) YEAR BUILT:

PROJ./PLAN REF. NO: ......... 2T5,2T1,2T10 / 00000 YEAR RECONSTRUCTED:

NPS ROAD CLASS: .............. 1 - PRINCIPAL PARK ROAD

STRUCTURE HISTORY: ...... 1985-LINING REHABILITATION.

LOCATION

BLUE RIDGE PARKWAY MILE POINT: ..................... 403.05 (KM PT 648.63)

STATE: .................................. NORTH CAROLINA LOCATION: 8.9 MILES TO U.S. ROUTE 276

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

FEATURE INTERSECTED: ... YOUNG PISGAH RIDGE

STRUCTURE EVALUATION SUMMARY

This concrete lined tunnel is in fair condition overall, but has some problems that require attention. These include missing stones on the north portal and fallen small trees at the east side of the north portal; missing, faded, and damaged reflectors along the lining and the centerline of roadway; and few spalls with exposed rebar along the tunnel lining. In addition, the vertical clearance, 14'-3", shown on the sign at the south approach is higher than the actual minimum clearance 14-2".

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: C. CASTRO, R. SILVESTRY

CONDITION ASSESSMENT:

CARLOS CASTRO, P.E., FIELD TEAM LEADER 571-434-1546

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. 5140-147P

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.

59.2 REPLACE MISSING STONES ON EAST SIDE OF NORTH PORTAL. REMOVE FALLEN

TREES AT EAST SIDE OF NORTH PORTAL.

1 LS $4,000 $4,000

59.8 REPLACE MISSING REFLECTORS ON LINING AND ALONG CENTERLINE OF

ROADWAY.

1 LS $3,000 $3,000

222.7 UPDATE VERTICAL CLEARANCE ON SIGNS AT APPROACHES ACCORDING TO

ACTUAL MINIMUM VERTICAL CLEARANCE AS NECESSARY.

1 LS $500 $1,000

PRELIM. MAINTENANCE TOTAL : $8,000

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS) QTY. UNIT UNIT

COST ESTIMATES

PRELIM. COST

REHAB. RECONSTR.

59.1 CLEAN AND SEAL EXPOSED REBAR WITH AN APPROVED

PROTECTIVE SEALANT IN TUNNEL LINING AS NECESSARY.

1 LS $10,000 $10,000 $0

59 CONTRACT COSTS FOR MOBILIZATION, TRAFFIC CONTROL, AND

DESIGN/CONSTRUCTION ENGINEERING.

1 LS $7,000 $7,000 $0

PRELIM. REHABILITATION/RECONSTRUCTION TOTAL : $17,000 $0

COST ESTIMATE SUMMARY

PRELIM. MAINTENANCE TOTAL:

PRELIM. REHABILITATION TOTAL:

PRELIM. RECONSTRUCTION TOTAL: ...

TOTAL ITEMIZED COSTS:

$0 $17,000 $8,000

$25,000

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.)

$25,000

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

FIELD INSPECTION REPORT STRUCTURE NO. 5140-147P

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

N

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.

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 CODE EQUIVALENTS FOR SUB-ELEMENTS

G = GOOD (CODES 7 - 9) F = FAIR (CODES 5 - 6) P = POOR (CODES 0 - 4)

59. TUNNEL 6

F

2. PORTALS

1. LINING

F

N3. CURBS AND SIDEWALKS

F4. DRAINS AND DRAINAGE

G5. WEARING SURFACE

G6. RIDEABILITY

N7. LIGHTING

F8. OTHER (REFLECTORS)

9. ADEQUACY OF OPENING SUFF

222. APPROACHES 8

N1. APPROACH SLABS

N2. RELIEF JOINTS

N3. APPROACH GUARDRAIL

G4. SURFACING

G5. EROSION

G6. SETTLEMENT

G7. SIGNS

G8. ALIGNMENT

N9. OTHER

223. RETAINING WALL N

1. WALL

2. WEEP HOLES

3. FOUNDATION

4. EROSION AND/OR SCOUR

5. SETTLEMENT OR DEFLECTION

6. OTHER

36. TRAFFIC AND SAFETY FEATURES

NA. BRIDGE RAILINGS

NB. TRANSITIONS

NC. APPROACH GUARDRAILS

ND. APPROACH GUARDRAIL ENDS

ITEM REFERENCE AND REMARKS

59.1 MINOR SPALLING WITH EXPOSED REBAR AND DELAMINATION ON

WEST SIDE AT ~45' FROM NORTH PORTAL. MINOR SPALLING AND

MODERATE CRACKING WITH EFFLORESCENCE AT SEVERAL SPOTS.

MINOR (6" LONG) SPALL WITH EXPOSED REBAR AND LEAKAGE AT

~370' FROM NORTH PORTAL, WEST SIDE. MINOR SPALL WITH

EXPOSED REBAR ON CROWN OF TUNNEL AT ~70' AND ~320' FROM

NORTH PORTAL. MOISTURE ON CROWN OF TUNNEL THROUGHOUT

LENGTH OF TUNNEL.

59.2 MINOR CRACKING OF PORTAL MASONRY MORTAR JOINTS; MINOR

EFFLORESCENCE FROM RING STONE JOINTS. SEVERAL STONES

MISSING FROM EAST SIDE OF NORTH PORTAL.

59.4 MODERATE CRACKING WITH EFFLORESCENCE AND LEAKAGE AT

DRAIN CHASE AREAS PARTICULARLY AT APPROXIMATELY 50', 210',

265', AND 370' FROM NORTH PORTAL.

59.8 MISSING OR DAMAGED REFLECTORS ALONG TUNNEL LINING.

THREE MISSING AND ONE DAMAGED REFLECTIVE DEVICES ALONG

CENTERLINE AND CURBLINES OF ROADWAY.

222.7 14'-3" VERTICAL CLEARANCE SIGNS AND "YOUNG PISGAH RIDGE

TUNNEL" SIGNS AT BOTH APPROACHES. ACTUAL MINIMUM

VERTICAL CLEARANCE IS 14'-2".

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 INVENTORY AND APPRAISAL STRUCTURE NO. 5140-147P

STRUCTURE IDENTIFICATION

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

(202) STRUCTURE NAME: .......... YOUNG PISGAH RIDGE TUNNEL (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............3 - TUNNEL (3) COUNTY CODE: ........................ 021 - BUNCOMBE

(204) STRUCTURE NUMBER: ..... 5140-147P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 1 (6) FEATURES INTERSECTED:....... YOUNG PISGAH RIDGE

(207) ROAD SECTION NO: .......... 147P (7) FACILITY CARRIED: .................. BLUE RIDGE PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5140147P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 8.9 MILES TO U.S. ROUTE 2

(210) OPERATING UNIT: ............. GILLESPE (10) INV. RTE. - MIN. VERT. CLR: .. 14.50 FT (4.42 M)

(211) PROJECT NO(S): ................ 2T5,2T1,2T10 (11) MILE POINT: ............................. 403.05 (KM PT 648.63)

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

18 - TUNNEL

29.0 FT (8.8 M)

418.0 FT (127.4 M)

6 - N/A

6 - N/A

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: .. 6 - BITUMINOUS

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

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

(218) IS SALT USED?: ..................... YES

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 0 - UNKNOWN (41) LOAD RESTRICTION: ......... R - POSTED (OTHER)

(66) INVENTORY RATING: ...... 0.0 TONS (0.0 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 0.0 TONS (0.0 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 6/15 (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. :

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5140-147P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(51) CURB TO CURB WIDTH: ........... 29.0 FT (8.8 M) (16) LATITUDE: ............................. 35°27'20.00"

(17) LONGITUDE: ......................... 82°41'58.00"

(19) DETOUR LENGTH: ............... 50 MI (80 KM)

(28A) LANES ON STRUCT:

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

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

(42B) SERVICE UNDER: .............. 1 - HIGHWAY

(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: ................................. N

(59) SUPERSTRUCTURE: .........N

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

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

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

(222) APPROACHES:

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

(36) TRAFFIC SAFETY FEAT: ... NNNN

(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:

0.0 FT (0.0 M)

38.0 FT (11.6 M)

22.0 FT (6.7 M)

8.0 FT (2.4 M)

8.0 FT (2.4 M)

0 - NO MEDIAN

0 °

NO

29.0 FT (8.8 M)

0.0 FT (0.0 M)

0.0 FT (0.0 M)

0 - N/A

0 - N/A

0 - N/A

0.00 FT (0.00 M)

14.67 FT (4.47 M)

14.67 FT (4.47 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

N - Not over waterway.

2 - REHAB/RECONSTRUCTION

D - MINOR

$8,000

$17,000

$0

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1985-LINING REHABILITATION.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

APPENDIX STRUCTURE NO. 5140-147P

PHOTOGRAPHS STRUCTURE NO. 5140-147P

PHOTO #1 - NORTH PORTAL

PHOTO #2 - SOUTH PORTAL

PHOTO #3 - GENERAL VIEW OF ROADWAY LOOKING NORTH; NOTE

MISSING REFLECTORS ALONG LINING AND ALONG CENTERLINE

PHOTO #4 - GENERAL UNDERSIDE VIEW OF TUNNEL LINING LOOKING

SOUTH

PHOTO #5 - FALLEN SMALL TREE ON EAST

SIDE OF NORTH PORTAL; NOTE ALSO FALLEN

STONES SAME AS PREVIOUS INSPECTION

PHOTO #6 - EFFLORESCENCE ON EAST

RINGSTONES AT NORTH PORTAL

PHOTO #7 - CRACKING WITH

EFFLORESCENCE ON EAST LINING NEAR

NORTH PORTAL

PHOTO #8 - CRACKING, DELAMINATION,

EFFLORESCENCE, AND EXPOSED REBAR ON

WEST WALL APPROXIMATELY 45' FROM

NORTH PORTAL

PHOTO #9 - MISSING REFLECTORS ALONG EAST LINING

APPROXIMATELY 45' TO 80' FROM NORTH PORTAL

PHOTO #10 - SPALLING WITH EXPOSED REBAR AT CROWN

APPROXIMATELY 70' FROM NORTH PORTAL

PHOTO #11 - FULL CRACK AT WEST WALL

APPROXIMATELY 85' FROM NORTH PORTAL

PHOTO #12 - CRACKING WITH

EFFLORESCENCE ON EAST LINING

APPROXIMATELY 160' FROM NORTH PORTAL

PHOTO #13 - CRACKING AT WEST WALL

APPROXIMATELY 180' FROM NORTH PORTAL

PHOTO #14 - CRACKING WITH

EFFLORESCENCE ON EAST LINING

APPROXIMATELY 200' FROM NORTH PORTAL

PHOTO #15 - CRACKING WITH

EFFLORESCENCE AND ACTIVE WATER

LEAKAGE ALONG DRAIN CHASE ON EAST

LINING APPROXIMATELY 210' FROM NORTH

PORTAL

PHOTO #16 - SPALL WITH ACTIVE WATER

LEAKAGE ON EAST LINING APPROXIMATELY

265' FROM NORTH PORTAL; NOTE SCALING

PHOTO #17 - SPALL WITH EXPOSED REBAR ON

CROWN APPROXIMATELY 320' FROM NORTH

PORTAL

PHOTO #18 - ACTIVE WATER LEAKAGE ALONG

DRAIN CHASE ON WEST SIDE APPROXIMATELY

370' FROM NORTH PORTAL; NOTE

EFFLORESCENCE AND SPALLING

PHOTO #19 - OPEN POPOUTS ON WEST WALL NEAR SOUTH PORTAL;

NOTE SOME HAVE BEEN PATCHED

PHOTO #20 - FADED REFLECTOR ON EAST SIDE AT SOUTH PORTAL;

PHOTO #21 - EFFLORESCENCE AT

RINGSTONES ON WEST SIDE OF SOUTH

PORTAL

PHOTO #22 - VERTICAL CLEARANCE SIGN AT

SOUTH APPROACH (PHOTO FROM 6/26/13

INSPECTION)