Bridge_Inspection_Rpt_STR_5140-143P.pdf

TUNNEL INSPECTION REPORT

PINE MOUNTAIN TUNNEL

BLUE RIDGE PARKWAY THROUGH PINE MOUNTAIN

BLUE RIDGE PARKWAY

NP

STRUCTURE NO. 5140-143P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 6/11/15

Report prepared by: SP

MILE POINT: 399.10

Federal Highway Administration KILOMETER POINT: 642.27 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. 5140-143P

PINE MOUNTAIN TUNNEL INSPECTION DATE: 6/11/15

TUNNEL IDENTIFICATION AND DESCRIPTION

LINING MATERIAL: ............... CONCRETE MINIMUM VERTICAL CLR: .... 14.3 FT (4.4 M)

SPRINGLINE LENGTH: ........ 29.3 FT (8.9 M) STRUCT. TOTAL LENGTH: ... 1,462.0 FT (445.6 M)

CURB TO CURB WIDTH: ..... 29.3 FT (8.9 M) YEAR BUILT:

PROJ./PLAN REF. NO: ......... 2S2,2S9,2S14 / YEAR RECONSTRUCTED:

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

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

LOCATION

BLUE RIDGE PARKWAY MILE POINT: ..................... 399.10 (KM PT 642.27)

STATE: .................................. NORTH CAROLINA LOCATION: 5.7 MILES TO NC ROUTE 191

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

FEATURE INTERSECTED: ... PINE MOUNTAIN

STRUCTURE EVALUATION SUMMARY

This concrete tunnel is in fair condition overall. The main problem is the moderate deterioration with leakage along the drain chases approximately 10' and 1168' from the north portal. Other problems include minor spalling with exposed rebar on the tunnel lining at several spots, missing and broken reflectors along both sides of the tunnel, and moderate vine growth on both portals, which overhangs the roadway at the south portal.

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. 5140-143P

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.

59.1 CLEAN EXPOSED REBAR IN LINING AND SEAL WITH APPROVED PROTECTIVE

COATING.

10 SF $300 $3,000

59.8 REPLACE MISSING AND DAMAGED TUNNEL REFLECTORS AS NECESSARY. 1 LS $4,000 $4,000

59.2 REMOVE VINE GROWTH FROM BOTH PORTALS. 1 LS $1,000 $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.

59.4 REPLACE DRAIN CHASES APPROXIMATELY 10' AND 1168' FROM

NORTH PORTAL.

90 LF $750 $68,000 $0

59 CONTRACT COSTS FOR MOBILIZATION, TRAFFIC CONTROL, AND

DESIGN/CONSTRUCTION ENGINEERING.

1 LS $50,000 $50,000 $0

PRELIM. REHABILITATION/RECONSTRUCTION TOTAL : $118,000 $0

COST ESTIMATE SUMMARY

PRELIM. MAINTENANCE TOTAL:

PRELIM. REHABILITATION TOTAL:

PRELIM. RECONSTRUCTION TOTAL: ...

TOTAL ITEMIZED COSTS:

$0 $118,000 $8,000

$126,000

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.)

$126,000

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

FIELD INSPECTION REPORT STRUCTURE NO. 5140-143P

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

G

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

TRAFFIC SAFETY RATING CODES

ITEM REFERENCE AND REMARKS

59.1,4 MINOR SPALLING WITH EXPOSED REBAR ON TUNNEL LINING AT

SEVERAL SPOTS INCLUDING: AT EAST LINING APPROXIMATELY 416',

WITH MODERATE CRACKING AND DELAMINATION, AND 1432' FROM

NORTH PORTAL; ON WEST LINING APPROXIMATELY 300' AND 347'

FROM NORTH PORTAL; ON CROWN APPROXIMATELY 430', 444', 719',

838', 902', AND 1060' FROM NORTH PORTAL AND NEAR SOUTH

PORTAL.

MINOR CRACKING WITH EFFLORESCENCE AND LEAKAGE

THROUGHOUT TUNNEL; MODERATE AT EAST LINING NEAR NORTH

PORTAL AND ON WEST LINING APPROXIMATELY 1168' FROM NORTH

PORTAL. SEVERAL CRACKS HAVE BEEN INJECTED AND SEALED.

MODERATE CRACKING WITH EFFLORESCENCE AND LEAKAGE OF

DRAIN CHASES APPROXIMATELY 10' AND 1168' FROM NORTH

PORTAL.

59.2 MINOR CRACKING WITH EFFLORESCENCE ON RING STONE

MASONRY JOINTS. MODERATE VINE GROWTH ON BOTH PORTALS;

OVERHANGS ROADWAY AT SOUTH PORTAL.

59.2,4 MODERATE LEAKAGE ALONG WEST SIDE OF NORTH PORTAL.

59.8 MISSING OR DAMAGED SEVERAL REFLECTORS ALONG BOTH SIDES

OF TUNNEL.

222.7 13'-11" VERTICAL CLEARANCE SIGN POSTED AT SOUTH APPROACH.

14'-0" VERTICAL CLEARANCE SIGN POSTED AT NORTH APPROACH.

"TURN LIGHTS ON" AND "PINE MOUNTAIN TUNNEL" SIGNS AT BOTH

APPROACHES.

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.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5140-143P

STRUCTURE IDENTIFICATION

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

(202) STRUCTURE NAME: .......... PINE MOUNTAIN TUNNEL (2) STATE HWY. AGENCY DIST:

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

(204) STRUCTURE NUMBER: ..... 5140-143P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 1 (6) FEATURES INTERSECTED:....... PINE MOUNTAIN

(207) ROAD SECTION NO: .......... 143P (7) FACILITY CARRIED: .................. BLUE RIDGE PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5140143P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ 5.7 MILES TO NC ROUTE 191

(210) OPERATING UNIT: ............. GILLESPE (10) INV. RTE. - MIN. VERT. CLR: .. 14.00 FT (4.27 M)

(211) PROJECT NO(S): ................ 2S2,2S9,2S14 (11) MILE POINT: ............................. 399.10 (KM PT 642.27)

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

29.3 FT (8.9 M)

1,462.0 FT (445.6 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?: ..................... NO

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 0 - UNKNOWN (41) LOAD RESTRICTION: ......... A - OPEN, NO RESTRICTION

(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. 5140-143P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(51) CURB TO CURB WIDTH: ........... 29.3 FT (8.9 M) (16) LATITUDE: ............................. 35°27'01.20"

(17) LONGITUDE: ......................... 82°38'31.50"

(19) DETOUR LENGTH: ............... 40 MI (64 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

21.8 FT (6.6 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)

14.33 FT (4.37 M)

14.33 FT (4.37 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

$118,000

$0

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1985-LINING REHABILITATION.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

APPENDIX STRUCTURE NO. 5140-143P

PHOTOGRAPHS STRUCTURE NO. 5140-143P

PHOTO #1 - NORTH PORTAL

PHOTO #2 - SOUTH PORTAL

PHOTO #3 - GENERAL UNDERSIDE VIEW LOOKING SOUTH

PHOTO #4 - GENERAL VIEW OF ROADWAY LOOKING SOUTH

PHOTO #5 - TYPICAL EFFLORESCENCE AT

PORTAL RING STONES, WEST RING STONES

AT NORTH PORTAL SHOWN; NOTE ALSO

LEAKAGE AND VEGETATION GROWTH AT THIS

LOCATION

PHOTO #6 - CRACKING WITH

EFFLORESCENCE ON EAST LINING NEAR

NORTH PORTAL

PHOTO #7 - CRACKING WITH

EFFLORESCENCE AND LEAKAGE ALONG EAST

SIDE OF DRAIN CHASE APPROXIMATELY 10'

FROM NORTH PORTAL; NOTE ALSO CRACKING

WITH EFFLORESCENCE ON LINING; SIMILAR

AT WEST SIDE SAME LOCATION

PHOTO #8 - CRACKING WITH

EFFLORESCENCE ON WEST LINING

APPROXIMATELY 39' FROM NORTH PORTAL

PHOTO #9 - CRACKING WITH

EFFLORESCENCE ON CROWN

APPROXIMATELY 81' FROM NORTH PORTAL;

NOTE INJECTED AND SEALED CRACKS ON

WEST LINING

PHOTO #10 - CRACKING WITH

EFFLORESCENCE ON WEST LINING

APPROXIMATELY 120' FROM NORTH PORTAL;

NOTE EFFLORESCENCE AND LEAKAGE ALONG

DRAIN CHASE

PHOTO #11 - MISSING REFLECTOR ON EAST

LINING APPROXIMATELY 110' FROM NORTH

PORTAL

PHOTO #12 - CRACKING WITH

EFFLORESCENCE AND LEAKAGE ALONG

DRAIN CHASE ON WEST LINING

APPROXIMATELY 300' FROM NORTH PORTAL;

NOTE SPALLING WITH EXPOSED REBAR ON

RIGHT SIDE OF DRAIN CHASE

PHOTO #13 - CRACKING AND SPALLING WITH

EXPOSED REBAR ON EAST LINING

APPROXIMATELY 416' FROM NORTH PORTAL;

CRACKING WITH EFFLORESCENCE ACROSS

ON WEST LINING

PHOTO #14 - SPALLING WITH EXPOSED

REBAR ON CROWN APPROXIMATELY 430'

FROM NORTH PORTAL, SIMILAR AT 444' FROM

NORTH PORTAL

PHOTO #15 - VERTICAL CRACKING AND

SPALLING WITH EXPOSED REBAR ON EAST

LINING APPROXIMATELY 596' FROM NORTH

PORTAL

PHOTO #16 - SPALLING WITH EXPOSED

REBAR ON CROWN APPROXIMATELY 719'

FROM NORTH PORTAL

PHOTO #17 - SPALLING WITH EXPOSED REBAR ON CROWN

APPROXIMATELY 838' FROM NORTH PORTAL

PHOTO #18 - SPALLING WITH EXPOSED REBAR ON CROWN

APPROXIMATELY 900'-915' FROM NORTH PORTAL

PHOTO #19 - SPALLING WITH EXPOSED

REBAR ON CROWN APPROXIMATELY 900'-915'

FROM NORTH PORTAL

PHOTO #20 - CRACKING WITH

EFFLORESCENCE ON WEST WALL

APPROXIMATELY 1050' FROM NORTH PORTAL

PHOTO #21 - SPALLING WITH EXPOSED

REBAR ON CROWN APPROXIMATELY 1060'

FROM NORTH PORTAL

PHOTO #22 - CRACKING WITH

EFFLORESCENCE ON WEST WALL

APPROXIMATELY 1163' FROM NORTH PORTAL

PHOTO #23 - SPALLING ALONG

CONSTRUCTION JOINT ON EAST SIDE

APPROXIMATELY 1170' FROM NORTH PORTAL

PHOTO #24 - CRACKING WITH

EFFLORESCENCE AT WEST WALL

APPROXIMATELY 1206' FROM NORTH PORTAL

PHOTO #25 - SPALLING WITH EXPOSED

REBAR AT EAST WALL APPROXIMATELY 1265'

FROM NORTH PORTAL

PHOTO #26 - SPALLING WITH EXPOSED

REBAR ON CROWN APPROXIMATELY 1305'

PHOTO #27 - DELAMINATION AND SPALLING

WITH EXPOSED REBAR AT CROWN

APPROXIMATELY 1380'-1410' FROM NORTH

PORTAL

PHOTO #28 - SPALLING WITH EXPOSED

REBAR ON EAST LINING APPROXIMATELY 1432'

PHOTO #29 - SPALLING WITH EXPOSED

REBAR ON CROWN APPROXIMATELY 1440'

FROM NORTH PORTAL

PHOTO #30 - DELAMINATION AND CRACKING

WITH EFFLORESCENCE ON WEST SIDE

APPROXIMATELY 1450' FROM NORTH PORTAL

PHOTO #31 - CRACKING WITH

EFFLORESCENCE ON WEST LINING NEAR

SOUTH PORTAL; NOTE ALSO MISSING

REFLECTOR

PHOTO #32 - SPALLING AND CRACKING WITH

EFFLORESCENCE ON EAST WALL AT SOUTH

PORTAL

PHOTO #33 - VEGETATION GROWTH OVERHANGING SOUTH PORTAL