5140-133P4250_Redacted.pdf

STRUCTURE NO. 5140 133P

BLUFF MOUNTAIN TUNNEL INSPECTION DATE: 11/2/16

STRUCTURE SUMMARY

TUNNEL IDENTIFICATION AND DESCRIPTION

LINING MATERIAL: ............... CONCRETE MINIMUM VERTICAL CLR: .... 13.6 FT (4.1 M)

SPRINGLINE LENGTH: ........ 29.2 FT (8.9 M) STRUCT. TOTAL LENGTH: ... 630.0 FT (192.0 M)

CURB TO CURB WIDTH: ..... 29.2 FT (8.9 M) YEAR BUILT:

PROJ./PLAN REF. NO: ......... 1F10,1G2 / NONE YEAR RECONSTRUCTED:

NPS ROAD CLASS:

1 - PRINCIPAL PARK ROAD

STRUCTURE HISTORY:

LOCATION

BLUE RIDGE PARKWAY MILE POINT: ..................... 53.01 (KM PT 85.31)

STATE: .................................. VIRGINIA LOCATION: 7.4 MILES TO U.S. ROUTE 60

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

FEATURE INTERSECTED: ... BLUFF MOUNTAIN

STRUCTURE EVALUATION SUMMARY

This concrete lined tunnel is in good to fair condition overall. The main problem is the deterioration of the concrete lining which has areas of delamination and exposed rebar in several locations. Other problems include missing vertical clearance signs from both approaches, a lack of Type 3 reflective object markers at the corners of both portals, several missing reflectors along the tunel, and minor deterioration of mortar joints in the northwest retaining wall.

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: R. SILVESTRY, L. ELLIS

CONDITION ASSESSMENT:

REINALDO SILVESTRY, FIELD TEAM LEADER 703-404-6251

REPORT REVIEW:

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

REPORT APPROVAL: DATE: 3/31/17

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5140 133P

226 PRIORITY OF IMPROVEMENT D

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.

ITEM

NO.

MAINTENANCE RECOMMENDATIONS

(GENERALLY NOT FLHP ELIGIBLE)

QTY. UNIT COST

UNIT

ESTIMATE

COST

PRELIM.

222.7 INSTALL VERTICAL CLEARANCE SIGNS AT APPROACHES. REPLACE BROKEN

REFLECTIVE DELINEATOR AS NECESSARY. INSTALL TYPE 3 REFLECTIVE OBJECT

MARKERS AT CORNERS OF PORTAL.

1 LS

PRELIM. MAINTENANCE TOTAL : $3,000

ITEM

REHABILITATION/RECONSTRUCTION

QTY. UNIT

UNIT

COST ESTIMATES

PRELIM. COST

NO (TYPICALLY NEEDED WITHIN 5 YEARS)

REHAB. RECONSTR.

59.1 REMOVE UNSOUND CONCRETE FROM TUNNEL LINING, CLEAN

REBAR, AND PLACE NEW CONCRETE TO ORIGINAL DIMENSIONS.

1 LS

223.1 CLEAN AND REPOINT RETAINING WALL MASONRY MORTAR JOINTS

AS NECESSARY.

1 LS

CONTRACT COSTS FOR MOBILIZATION, TRAFFIC CONTROL, AND

DESIGN CONSTRUCTION ENGINEERING (70% TOTAL REHAB COST)

PLUS PARK LOCATION FACTOR.

1 LS

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. 5140 133P

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

F1. LINING

G PORTALS2.

NCURBS AND SIDEWALKS3.

G 4. DRAINS AND DRAINAGE

G 5. WEARING SURFACE

G 6. RIDEABILITY

N 7. LIGHTING

G 8. OTHER (PAVED WATERWAYS)

9. ADEQUACY OF OPENING INSUFF

222. APPROACHES 7

N 1. APPROACH SLABS

N 2. RELIEF JOINTS

N 3. APPROACH GUARDRAIL

G 4. SURFACING

G 5. EROSION

G 6. SETTLEMENT

P 7. SIGNS

G 8. ALIGNMENT

N 9. OTHER

223. RETAINING WALL 7

G 1. WALL

N 2. WEEP HOLES

N 3. FOUNDATION

G 4. EROSION AND/OR SCOUR

G 5. SETTLEMENT OR DEFLECTION

N 6. OTHER

36. TRAFFIC AND SAFETY FEATURES

NA. BRIDGE RAILINGS

NB. TRANSITIONS

N C. APPROACH GUARDRAILS

N D. APPROACH GUARDRAIL ENDS

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.

ITEM REFERENCE AND REMARKS

59.1 MODERATE LONGITUDINAL AND TRANSVERSE CRACKING WITH

MODERATE EFFLORESCENCE WITHIN 10' OF BOTH PORTALS. .

MINOR TO MODERATE TRANSVERSE CRACKING WITH

EFFLORESCENCE THROUGHOUT TUNNEL LINING WITH RUST

STAINS IN SEVERAL LOCATIONS; ISOLATED LONGITUDINAL AND

RANDOM CRACKING ALONG LENGTH OF CROWN. EXPOSED REBAR

IN SEVERAL LOCATIONS DUE TO INSUFFICIENT CONCRETE COVER.

MINOR SPALLED AREAS AND NUMEROUS PATCHES THROUGHOUT.

59.2, 222.4 MINOR CRACKING WITH EFFLORESCENCE ON RING STONES AND

PORTAL MASONRY MORTAR JOINTS. MINOR VEGETATION GROWTH

ON SOUTH PORTAL. EFFLORESCENCE ON SOUTH APPROACH

ROADWAY FROM RING STONES.

59.8 MINOR DEBRIS ACCUMULATION IN PAVED WATERWAYS OVER TOP

OF BOTH PORTALS.

222.7 NO VERTICAL CLEARANCE SIGNS AT APPROACHES. TYPE 3

REFLECTIVE OBJECT MARKERS MISSING AT CORNERS OF PORTAL.

SEVERAL MISSING AND BROKEN REFLECTORS THROUGHOUT THE

TUNNEL

"TUNNEL", "TURN ON LIGHTS", AND "CHECK LIGHTS" SIGNS AT

APPROACHES.

GEOLOGICAL SURVEY MARKER ON WEST SIDE OF SOUTH PORTAL.

"BLUFF MOUNTAIN TUNNEL" SIGN AT BOTH APPROACHES.

223.1 RETAINING WALL AT NORTHWEST CORNER OF STRUCTURE; MINOR

CRACKING AND ISOLATED DETERIORATION OF MASONRY MORTAR

JOINTS WITH VEGETATION GROWTH IN JOINTS.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5140 133P

STRUCTURE IDENTIFICATION

(201) PARK: BLUE RIDGE PARKWAY

(202) STRUCTURE NAME:

(203) STRUCTURE KIND:

(204) STRUCTURE NUMBER:

(205) NPS REGION:

(206) ROUTE CODE NUMBER: ...

(207) ROAD SECTION NO:

(208) NPS ROAD CLASS:

(209) WITHIN NPS BNDRY?:

(210) OPERATING UNIT:

(211) PROJECT NO(S):

(212) DRAWING NUMBERS:

(21) MAINTAINED BY:

(22) OWNER:

BLUFF MOUNTAIN TUNNEL

3 - TUNNEL

5140-133P

4 - SOUTHEAST

133P

1 - PRINCIPAL PARK ROAD

YES

JAMES R.

1F10,1G2

NONE

66 - NATIONAL PARK SERVICE

66 - NATIONAL PARK SERVICE

(1) STATE:

(2) STATE HWY. AGENCY DIST:

(3) COUNTY CODE:

(4) CITY/PLACE CODE:

(5) INVENTORY ROUTE:

(6) FEATURES INTERSECTED:

(7) FACILITY CARRIED:

(8) STATE STRUCTURE NO:

(9) LOCATION:

(10) INV. RTE. - MIN. VERT. CLR: ..

(11) MILE POINT:

(27) YEAR BUILT:

(106) YEAR RECONSTRUCTED:

(20) TOLL:

(37) HISTORICAL DESIGNATION: ..

513 - VIRGINIA (VA)

009 - AMHERST

261000010

BLUFF MOUNTAIN

BLUE RIDGE PARKWAY

5140133P0000000

7.4 MILES TO U.S. ROUTE 6

13.83 FT (4.22 M)

53.01 (KM PT 85.31)

3 - FREE ROAD

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

29.2 FT (8.9 M)

630.0 FT (192.0 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: .. N - NOT APPLICABLE

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

C) TYPE PROTECTION:

0 - NONE

NO(218) IS SALT USED?:

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: 11/16 (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 133P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 37°39'56.20" (51) CURB TO CURB WIDTH: ........... 29.2 FT (8.9 M)

(17) LONGITUDE: ......................... 79°19'19.10" (52) DECK WIDTH: ............................ 0.0 FT (0.0 M)

(19) DETOUR LENGTH: ............... 25 MI (40 KM) (32) APPR. ROADWAY WIDTH: ........ 38.0 FT (11.6 M)

(28A) LANES ON STRUCT: .......... 00 (213) APPR. PAVEMENT WIDTH: ..... 22.0 FT (6.7 M)

(28B) LANES UNDER STRUCT: ... 02 LEFT SHOULDER: .................. 8.0 FT (2.4 M)

(42A) SERVICE ON: ..................... 1 - HIGHWAY RIGHT SHOULDER: ................ 8.0 FT (2.4 M)

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

(29) AVG. DAILY TRAFFIC: .......... 474 (34) SKEW ANGLE: ............................ 0 °

(30) YEAR OF ADT: ...................... 2012 (35) DECK FLARE?: ........................... NO

(114) FUTURE ADT: ..................... 521 (47) TOTAL HORIZ. CLEARANCE: .... 29.2 FT (8.9 M)

(115) YEAR OF FUTURE ADT: ..... 2032 (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: ......... 0 - N/A

(111) ABUT. OR PIER PROT: ....... MATERIAL: .............................. 0 - N/A

DESIGN TYPE: ........................ 0 - N/A

LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 3.4 FT (1.0 M) (215) BRIDGE RAIL HEIGHT: ............ 0.00 FT (0.00 M)

(56) LEFT: ......................... 0.0 FT (0.0 M) (53) MIN. VRT. CLEAR. OVER DECK: 13.58 FT (4.14 M)

(54) MIN. VRT. UNDERCLEARANCE: 99.99 FT (99.99 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:

(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 - Not over waterway.

2 - REHAB/RECONSTRUCTION

D - MINOR

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

http:79�19'19.10 http:37�39'56.20

APPENDIX STRUCTURE NO. 5140 133P

PHOTOGRAPHS STRUCTURE NO. 5140 133P

PHOTO #1 - NORTH PORTAL

PHOTO #2 - SOUTH PORTAL

PHOTO #3 - GENERAL ROADWAY VIEW LOOKING NORTH (PHOTO FROM

10/15/2012 INSPECTION REPORT)

PHOTO #4 - GENERAL VIEW OF SOUTH TUNNEL CROWN LOOKING

NORTH, NOTE CRACKING WITH EFFLORESCENCE AND

EFFLORESCENCE FROM RINGSTONES

PHOTO #5 - HORIZONTAL AND DIAGONAL CRACKING 30' FROM SOUTH

END IN WEST LINING

PHOTO #6 - TYPICAL TRANSVERSE CRACKING WITH EFFLORESCENCE

AND RUST STAINING ON TUNNEL CROWN, CROWN OF LINING

APPROXIMATELY 100' FROM NORTH PORTAL SHOWN

PHOTO #7 - TYPICAL CRACKING AND WATER

LEAKAGE SURROUNDING AND THROUGHOUT

PATCHWORK; 40' FROM SOUTH PORTAL, EAST

LINING

PHOTO #8 - SPALLING WITH EXPOSED REBAR

ON CROWN 60' FROM SOUTH PORTAL

PHOTO #9 - CRACKING AND EFFLORESCENCE THROUGHOUT

PATCHWORK IN CROWN 125' FROM SOUTH PORTAL

PHOTO #10 - SPALLING AND EXPOSED REBAR ADJACENT TO

PATCHWORK, 370' FROM SOUTH PORTAL, EAST LINING

PHOTO #11 - EXPOSED REBAR WITH CORROSION IN PATCHWORK IN

CROWN; 390' FROM SOUTH PORTAL

PHOTO #12 - WIDESPREAD CRACKING AND EFFLORESCENCE WITH

RUST STAINING ON WEST LINING AND CROWN ABOUT 165' FROM

NORTH PORTAL

STRUCTURE NO. 5140 133PPHOTOGRAPHS

PHOTO #13 - PATCHWORK IN CROWN 30' FROM NORTH PORTAL; NOTE

CRACKING AND EFFLORESCENCE IN AND ADJACENT TO PATCHWORK

PHOTO #14 - CRACKING WITH EFFLORESCENCE SURROUNDING AND

THROUGHOUT PATCHWORK IN CROWN 85' FROM NORTH PORTAL

PHOTO #15 - TYPICAL TRANSVERSE AND VERTICAL CRACKING WITH

EFFLORESCENCE AND RUST STAINING ON WEST WALL,

APPROXIMATELY 410' FROM SOUTH PORTAL

PHOTO #16 - TYPICAL VERTICAL CRACKING WITH EFFLORESCENCE

FROM ROADWAY TO CROWN, APPROXIMATELY 160' FROM SOUTH

PORTAL, WEST LINING WITH EFFLORESCENCE

PHOTO #17 - EXPOSED REBAR ON CROWN OF

TUNNEL LINING, APPROXIMATELY 80 FEET

FROM SOUTH PORTAL

PHOTO #18 - TYPICAL LONGITUDINAL AND

TRANSVERSE CRACKING WITH

EFFLORESCENCE WITHIN 10' OF PORTALS,

WEST SIDE AT NORTH PORTAL SHOWN; NOTE

EFFLORESCENCE ON UNDERSIDE OF

RINGSTONES

PHOTO #19 - TYPICAL CRACKING WITH EFFLORESCENCE ON RING

STONES AND PORTAL MASONRY MORTAR JOINTS, SOUTH PORTAL

SHOWN (PHOTO FROM 10/15/2012 INSPECTION REPORT)

PHOTO #20 - TYPICAL CRACKING AND DETERIORATION OF

NORTHWEST RETAINING WALL MASONRY MORTAR JOINTS WITH

VEGETATION GROWTH IN JOINTS (PHOTO FROM 10/15/2012

STRUCTURE NO. 5140 133P

PHOTO #21 - MASONRY WALLS ON WEST SIDE

OF NORTH PORTAL

PHOTO #22 - TYPICAL DETERIORATION OF

MASONRY MORTAR JOINTS IN NORTHEAST

WINGWALL

PHOTOGRAPHS

PHOTO #23 - TYPICAL DETERIORATION OF MASONRY MORTAR JOINT

IN SOUTHWEST WINGWALL; NOTE WATER STAINING AND

EFFLORESCENCE BUILD-UP ALONG WALL