Bridge Inspection Rpt_STR 5460-003P.pdf

STRUCTURE SUMMARY STRUCTURE NO. 5460-003P

CHIMNEY TOPS TUNNEL INSPECTION DATE: 6/21/18

TUNNEL IDENTIFICATION AND DESCRIPTION

LINING MATERIAL: ............... CONCRETE MINIMUM VERTICAL CLR: .... 16.2 FT (4.9 M)

SPRINGLINE LENGTH: ........ 253.0 FT (77.1 M) STRUCT. TOTAL LENGTH: ... 253.0 FT (77.1 M)

CURB TO CURB WIDTH: ..... 26.4 FT (8.0 M) YEAR BUILT:

PROJ./PLAN REF. NO: ......... 1A23,B16 / YEAR RECONSTRUCTED:

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

STRUCTURE HISTORY: ...... 2001 -LINING REPAIRS, GRADE THROUGH TUNNEL LOWERED, APPROACH GUARDWALLS

CONSTRUCTED. 2012 (EST) - ROADWAY REPAVED.

LOCATION

GREAT SMOKY MOUNTAINS NATIONAL PARK MILE POINT: ..................... 8.46 (KM PT 13.62)

STATE: .................................. TENNESSEE LOCATION: 6.6 MILES SOUTH OF SUGARLANDS VISITOR CENTER OR 6.3 MILES NORTHWEST FACILITY CARRIED: ............. NEWFOUND GAP ROAD

FROM NEWFOUND GAP.

FEATURE INTERSECTED: ... CHIMNEY TOPS MOUNTAIN

STRUCTURE EVALUATION SUMMARY

This concrete lined tunnel is in fair condition overall. Problems include cracking, spalling, and delamination along the lining construction joints; and cracking with efflorescence and rust staining on the lining elsewhere, particularly near the south portal. Other problems include cracking of the barrier walls; vegetation growth on the portals; and debris accumulation along the east masonry wall at the south approach.

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: B. BUMPERS, T. POWELL (VOLKERT, INC.)

CONDITION ASSESSMENT:

BRITT BUMPERS, P.E., FIELD TEAM LEADER

REPORT REVIEW:

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

REPORT APPROVAL: DATE: 11/8/18

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5460-003P

A (Critical) - Structure is closed, in imminent danger of collapse, or presents a critical safety hazard.

B (Major) - Structure exhibits severe deterioration, presents a safety hazard, or is designated a high priority due to age and/or condition.

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.

ROUTINE MAINTENANCE QTY. UNIT UNIT

COST

PRELIM.

COST

ESTIMATE

59.2 TRIM/REMOVE VEGETATION GROWTH ON PORTALS AS NECESSARY. 1 LS

222.9 REMOVE DEBRIS ACCUMULATION ALONG EAST MASONRY WALL AT SOUTH

APPROACH.

1 LS

PRELIM. MAINTENANCE TOTAL :

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS)

QTY. UNIT

UNIT

COST

PRELIM. COST

ESTIMATES

REHAB. RECONSTR.

PRELIM. REHABILITATION/RECONSTRUCTION TOTAL :

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. 5460-003P

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.

3 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.

2 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.

1 “IMMINENT” FAILURE CONDITION - major deterioration or sec ion 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.

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)

59. TUNNEL 6

F1. LINING

F2. PORTALS

G3. CURBS AND SIDEWALKS

G4. DRAINS AND DRAINAGE

G5. WEARING SURFACE

G6. RIDEABILITY

N7. LIGHTING

N8. OTHER

9. ADEQUACY OF OPENING SUFF

222. APPROACHES 7

N1. APPROACH SLABS

N2. RELIEF JOINTS

G3. APPROACH GUARDRAIL

G4. SURFACING

G5. EROSION

G6. SETTLEMENT

G7. SIGNS

F8. ALIGNMENT

F9. OTHER (DRAINAGE SYSTEM)

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

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.

ITEM REFERENCE AND REMARKS

59.1 MINOR TO MODERATE CRACKING WITH EFFLORESCENCE AND

RUST STAINING, OF LINING THROUGHOUT; CRACKING MORE

PREVALENT NEAR SOUTH PORTAL. MINOR TO MODERATE

SPALLING, DELAMINATION, AND CRACKING ALONG CONSTRUCTION

JOINTS. MINOR RUST STAINING ALONG CONSTRUCTION JOINT ON

EAST LINING APPROXIMATELY 75' FROM SOUTH PORTAL. MINOR TO

MODERATE LONGITUDINAL CRACKING WITH EFFLORESCENCE

ALONG CROWN BEGINNING NEAR NORTH PORTAL EXTENDING TO

MID-LENGTH OF TUNNEL. MINOR TO MODERATE AREAS OF PAINT

FAILURE ON TUNNEL LINING.

59.2 MINOR EFFLORESCENCE ON RING STONES AT BOTH PORTALS;

MINOR TO MODERATE DETERIORATION OF MORTAR JOINTS.

MODERATE TO HEAVY VEGETATION ON AND ABOVE PORTALS.

59.3 MINOR VERTICAL CRACKING WITH EFFLORESCENCE ON BARRIER

WALLS.

59.4 FIBERGLASS PLATES INSTALLED OVER DRAIN CHASES; FOURTEEN

PLATES INSTALLED THROUGHOUT TUNNEL.

59.5, 222.4 ROADWAY STRIPING BEGINNING TO FADE IN AREAS.

222.3 ISOLATED AREAS OF MODERATE TO SEVERE DETERIORATION OF

MANSONRY MORTAR JOINTS IN APPROACH GUARDWALLS.

222.7 "TUNNEL - USE LIGHTS - 25 MPH" SIGNS LOCATED AT BOTH

APPROACHES.

222.8 TUNNEL IN SHARP HORIZONTAL CURVE.

222.9 FILTER FABRIC EXPOSED AT DRAINAGE OUTLET ON SOUTHWEST

EMBANKMENT SLOPE DUE TO MODERATE EROSION. MINOR TO

MODERATE DEBRIS ACCUMULATION ALONG EAST MASONRY WALL

AT SOUTH APPROACH.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5460-003P

STRUCTURE IDENTIFICATION

(201) PARK: GREAT SMOKY MOUNTAINS NATIONAL PARK (1) STATE: ....................................... 474 - TENNESSEE (TN)

(202) STRUCTURE NAME: .......... CHIMNEY TOPS TUNNEL (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............3 - TUNNEL (3) COUNTY CODE: ........................ 155 - SEVIER

(204) STRUCTURE NUMBER: ..... 5460-003P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 10 (6) FEATURES INTERSECTED:....... CHIMNEY TOPS MOUNTAIN

(207) ROAD SECTION NO: ..........003P (7) FACILITY CARRIED: .................. NEWFOUND GAP ROAD

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5460003P0000000

(209) WITHIN NPS BNDRY?: .......YES (9) LOCATION: ................................ 6.6 MILES SOUTH OF SUGAR

(210) OPERATING UNIT: ............. N. DIST. (10) INV. RTE. - MIN. VERT. CLR: .. 16.00 FT (4.88 M)

(211) PROJECT NO(S): ................1A23,B16 (11) MILE POINT: .............................8.46 (KM PT 13.62)

(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

253.0 FT (77.1 M)

253.0 FT (77.1 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: .. 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: ......... 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: 6/18 (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. 5460-003P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 35°38'11.00"

(17) LONGITUDE: ......................... 83°28'20.70"

(19) DETOUR LENGTH: ............... 80 MI (129 KM)

(28A) LANES ON STRUCT:

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

(42A) SERVICE ON: ..................... 0 - OTHER

(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?: ... N

(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: ....................... 1.8 FT (0.5 M)

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

(51) CURB TO CURB WIDTH:

(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:

26.4 FT (8.0 M)

26.4 FT (8.0 M)

32.0 FT (9.8 M)

24.0 FT (7.3 M)

5.0 FT (1.5 M)

3.0 FT (0.9 M)

0 - NO MEDIAN

0 °

NO

26.4 FT (8.0 M)

0.0 FT (0.0 M)

0.0 FT (0.0 M)

0 - N/A

0 - N/A

0 - N/A

3.67 FT (1.12 M)

16.17 FT (4.93 M)

0.00 FT (0.00 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: ..

(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.

1 - MAINTENANCE

D - MINOR

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

2001 -LINING REPAIRS, GRADE THROUGH TUNNEL LOWERED, APPROACH GUARDWALLS CONSTRUCTED. 2012 (EST) - ROADWAY

REPAVED.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

https://83�28'20.70 https://35�38'11.00

APPENDIX STRUCTURE NO. 5460-003P

PHOTOGRAPHS STRUCTURE NO. 5460-003P

PHOTO #1 - NORTH PORTAL

PHOTO #2 - SOUTH PORTAL

PHOTO #3 - GENERAL UNDERSIDE VIEW OF LINING LOOKING NORTH

PHOTO #4 - GENERAL VIEW OF ROADWAY INSIDE TUNNEL LOOKING

NORTH

PHOTO #5 - DRAIN INLET AT EAST SIDE OF SOUTH APPROACH; NOTE

DEBRIS ACCUMULATION

PHOTO #6 - DRAINAGE OUTLET LOCATED AT WEST SIDE OF SOUTH

APPROACH SHOULDER

PHOTO #7 - EXPOSED FILTER FABRIC NEAR DRAINAGE OUTLET

LOCATED AT SOUTHWEST APPROACH SHOULDER

PHOTO #8 - TYPICAL DETERIORATION OF MASONRY MORTAR JOINTS

IN APPROACH GUARDWALLS, EAST WALL AT SOUTH APPROACH

SHOWN

PHOTO #9 - VEGETATION GROWTH AT TOP OF SOUTH PORTAL; NOTE

MOSS GROWTH

PHOTO #10 - EFFLORESCENCE AND LEAKAGE ON SOUTH PORTAL

MASONRY

PHOTO #11 - DETERIORATION OF WEST LINING NEAR SOUTH PORTAL

PHOTO #12 - CRACKING, EFFLORESCENCE, LEAKAGE, AND RUST

STAINING ON EAST LINING NEAR SOUTH PORTAL, NOTE TYPICAL PAINT

FAILURE

PHOTO #13 - CRACKING WITH EFFLORESCENCE ON TUNNEL LINING

NEAR SOUTH PORTAL

PHOTO #14 - TYPICAL CRACKING WITH EFFLORESCENCE ON LINING,

WEST LINING NEAR SOUTH PORTAL SHOWN

PHOTO #15 - TYPICAL VERTICAL CRACKING WITH EFFLORESCENCE

ON BARRIER WALLS, WEST BARRIER WALL NEAR SOUTH PORTAL

SHOWN

PHOTO #16 - TYPICAL LEAKAGE ALONG CONSTRUCTION JOINTS, JOINT

IN WEST LINING APPROXIMATELY 120' FROM SOUTH PORTAL SHOWN

PHOTO #17 - SPALLING OF CROWN ALONG CONSTRUCTION JOINT

NEAR MID-LENGTH

PHOTO #18 - LONGITUDINAL CRACKING WITH EFFLORESCENCE

ALONG CROWN BEGINNING NEAR NORTH PORTAL EXTENDING TO

MID-LENGTH OF TUNNEL

PHOTO #19 - TYPICAL AREAS OF PAINT FAILURE ON TUNNEL LINING,

EAST LINING NEAR NORTH PORTAL SHOWN

PHOTO #20 - EFFLORESCENCE ON NORTH PORTAL MASONRY

PHOTO #21 - DRAINAGE INLET AT END OF EAST WALL AT NORTH

APPROACH