5140-087P1821.pdf

STRUCTURE SUMMARY STRUCTURE NO. 5140-087P

BRUSH CREEK BRIDGE #2 INSPECTION DATE: 6/27/19

BRIDGE IDENTIFICATION AND DESCRIPTION

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

MAIN SPAN TYPE: ............... SLAB NO. OF APPR. SPANS:

# OF BEAMS, MAIN SPAN: .. 1 STRUCT. TOTAL LENGTH: .. 20.0 FT (6.1 M)

DECK TYPE: ......................... CONCRETE CAST-IN-PLACE MAX. SPAN LENGTH: .......... 20.0 FT (6.1 M)

WEARING SURFACE: .......... BITUMINOUS DECK WIDTH: ...................... 33.8 FT (10.3 M)

ABUT. FOUNDATIONS: ........ SPREAD FTG ON BEARING MAT'L CURB TO CURB WIDTH: ..... 30.7 FT (9.4 M)

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

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

PROJ./PLAN REF. NO: ......... 2B2 / NONE SKEW ANGLE: ..................... 0 °

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

STRUCTURE HISTORY: ...... 1980-CHANNEL IMPROVED. 2010 est.- STEEL BACKED TIMBER RAILS INSTALLED ON BRIDGE

AND AT APPROACHES.

LOCATION

BLUE RIDGE PARKWAY MILE POINT: ..................... 231.82 (KM PT 373.05)

STATE: ................................. NORTH CAROLINA LOCATION: 0.1 MILES FROM NC ROUTE 1110

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

FEATURE INTERSECTED: .. BRUSH CREEK

STRUCTURE EVALUATION SUMMARY

This concrete slab bridge is in fair to poor condition overall. The main problem is the severe deterioration of the concrete deck along both sides and slab underside. Another problem includes minor scour at the west side of the north abutment resulting from the northward migration of the channel.

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. In addition, installation of a bridge rail system that meets current safety requirements should be considered.

INSPECTION TEAM: R. SILVESTRY, E. JOHNSON

CONDITION ASSESSMENT:

REINALDO SILVESTRY, P.E., FIELD TEAM LEADER 703-404-6251

REPORT REVIEW:

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

REPORT APPROVAL: DATE: 12/10/19

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5140-087P

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.

C226 PRIORITY OF IMPROVEMENT

ITEM

NO.

ROUTINE MAINTENANCE QTY. UNIT UNIT

COST

PRELIM.

COST

ESTIMATE

PRELIM. MAINTENANCE TOTAL :

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS)

QTY. UNIT

UNIT

COST

PRELIM. COST

ESTIMATES

REHAB. RECONSTR.

58.1, 59.3 REPLACE SUPERSTRUCTURE.

60.9 INSTALL SCOUR COUNTERMEASURES AT WEST CORNER OF

NORTH ABUTMENT.

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. 5140-087P

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 sec ion 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 4 ITEM REFERENCE AND REMARKS

P1. DECK SLAB

N2. EXPANSION JOINTS

G3. WEARING SURFACE

G4. RIDEABILITY

F5. CURBS, SIDEWALKS, AND MEDIAN

G6. PARAPETS AND/OR RAILINGS

G7. DRAINS AND DRAINAGE

N8. UTILITIES

G9. DEFLECTION AND/OR VIBRATION

N10. OTHER

59. SUPERSTRUCTURE 4

N1. BEARING DEVICES

N2. GIRDERS OR BEAMS

P3. ARCH(ES) OR SLAB(S)

N4. FLOOR BEAMS AND STRINGERS

N5. TRUSSES

N6. DIAPHRAGMS AND BRACING

N7. PAINT

N8. FASCIA(E)

G9. DEFLECTION AND/OR VIBRATION

G10. ALIGNMENT

N11. OTHER

60. SUBSTRUCTURE 7

58.1,5 SEVERE SPALLING AND DELAMINATION ON TOPS OF CURBS AND

BOTH SIDES OF CURBS AND SLAB

58.3, 222.4 MINOR CRACKING OF WEARING SURFACE OVER STRUCTURE AND

APPROACHES THROUGHOUT.

58.6 MINOR CRACKING AND SPALLING OF CONCRETE RAIL POSTS.

MINOR CHECKING OF STEEL-BACKED TIMBER RAILS. MINOR

RUSTING OF STEEL BACKING AND CONNECTIONS.

59.3 SLAB UNDERSIDE EXHIBITS MODERATE MAP CRACKING AND

DELAMINATION. MODERATE TO SEVERE CRACKING AND

EFFLORESCENCE ON SIDES AND SLAB UNDERSIDE. DELAMINATION

OF LARGE PATCH (3' LONG X 1'-6" WIDE) ON EAST SIDE NEAR

NORTH ABUTMENT. LONGITUDINAL CRACK WITH EFFLORESCENCE

ALONG CONSTRUCTION JOINT ON CENTERLINE OF SLAB

UNDERSIDE.

60.1,6 MINOR DETERIORATION OF ABUTMENT AND WINGWALL MASONRY

JOINTS WITH EFFLORESCENCE.

60.9 MINOR SCOUR AT WEST CORNER OF NORTH ABUTMENT, SEE ALSO

61.1,2.

ABUTMENTS

1. BREASTWALLS OR COLUMNS G

2. PILE BENTS N

3. CAPS AND/OR BEARING SEATS G

4. BACKWALLS AND/OR BULKHEADS N

5. FOUNDATIONS N

6. WINGWALLS G

7. WEEP HOLES G

8. EXPANSION JOINTS N

9. EROSION AND/OR SCOUR G

10. SETTLEMENT OR DEFLECTION G

11. SLOPE PROTECTION N

12. OTHER N

PIER(S)

13. WALLS AND/OR COLUMNS N

14. PILE BENTS N

15. CAPS AND/OR BEARING SEATS N

16. FOUNDATIONS N

17. EROSION AND/OR SCOUR N

18. SETTLEMENT OR DEFLECTION N

19. OTHER N

FIELD INSPECTION REPORT STRUCTURE NO. 5140-087P

ITEM REFERENCE AND REMARKS

61. CHANNEL 6

1. ALIGNMENT F

2. EROSION AND/OR SCOUR G

3. CHANNEL PROTECTION N

4. WATERWAY OBSTRUCTIONS G

5. OTHER N

6. ADEQUACY OF OPENING SUFF

7. NORMAL VELOCITY MED

8. AVERAGE CLEAR OPENING 7 FT.

9. STREAM BED COMPOSITION :

GRAVEL, SAND, SILT

222. APPROACHES 7

1. APPROACH SLABS

2. RELIEF JOINTS

3. APPROACH GUARDRAIL

4. SURFACING

5. EROSION

6. SETTLEMENT

7. SIGNS

8. ALIGNMENT

9. OTHER

N N G G G G N G N

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

A. BRIDGE RAILINGS

B. TRANSITIONS

C. APPROACH GUARDRAILS

D. APPROACH GUARDRAIL ENDS

N

61.1,2 MINOR NORTHWARD MIGRATION OF CHANNEL; STREAM FLOW

DIRECTED TOWARD WEST CORNER OF NORTH ABUTMENT. MINOR

SLOUGHING ALONG NORTH, UPSTREAM CHANNEL BANK. WELL

VEGETATED CHANNEL BANKS UPSTREAM AND DOWNSTREAM OF

STRUCTURE.

61.2 SEE BRIDGE FILE FOR SCOUR EVALUATION.

36.A,C,D RAIL HEIGHT OF 1'-10" DOES NOT MEET MINIMUM SAFETY HEIGHT

GUIDELINES OF 2'-3". RAIL ENDS DO NOT TERMINATE SAFELY.

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. 5140-087P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 17 15 28 25

HS 31 28 51 46

TYPE 3 24 22 41 37

TYPE 3S2 39 35 65 59

TYPE 3-3 48 44 80 73

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: 10/14

LOAD RATING CONTROLLED BY:

REMARKS: RATING IS BASED ON DESIGN LOAD OF STRUCTURE.

SEE BRIDGE FILE FOR LOAD RATING CALCULATIONS.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5140-087P

STRUCTURE IDENTIFICATION

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

(202) STRUCTURE NAME: .......... BRUSH CREEK BRIDGE #2 (2) STATE HWY. AGENCY DIST:

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

(204) STRUCTURE NUMBER: ..... 5140-087P (4) CITY/PLACE CODE:

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

(206) ROUTE CODE NUMBER: ... 1 (6) FEATURES INTERSECTED:....... BRUSH CREEK

(207) ROAD SECTION NO: ..........087P (7) FACILITY CARRIED: .................. BLUE RIDGE PARKWAY

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 5140087P0000000

(209) WITHIN NPS BNDRY?: .......YES (9) LOCATION: ................................ 0.1 MILES FROM NC ROUTE

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

(211) PROJECT NO(S): ................2B2 (11) MILE POINT: .............................231.82 (KM PT 373.05)

(212) DRAWING NUMBERS: ....... NONE (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

01 - SLAB

20.0 FT (6.1 M)

20.0 FT (6.1 M)

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

6 - N/A

6 - N/A

1 - CONCRETE CAST-IN-PLACE

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

(66) INVENTORY RATING: ...... 31.0 TONS (28.1 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 51.0 TONS (46.3 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 6/19 (91) FREQ. OF INSP: 24 MONTHS (92 / 93) CRITICAL FEATURE INSPECTION (CFI):

(219) ADD. STUDIES NEEDED: Y - 1 - DECK SURVEY (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. 5140-087P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 36°25'54.70"

(17) LONGITUDE: ......................... 81°03'14.70"

(19) DETOUR LENGTH: ............... 25 MI (40 KM)

(28A) LANES ON STRUCT:

(28B) LANES UNDER STRUCT: ... 00

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

(42B) SERVICE UNDER: .............. 5 - WATERWAY

(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)

(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:

30.7 FT (9.4 M)

33.8 FT (10.3 M)

30.0 FT (9.1 M)

20.0 FT (6.1 M)

5.0 FT (1.5 M)

5.0 FT (1.5 M)

0 - NO MEDIAN

0 °

NO

30.7 FT (9.4 M)

0.0 FT (0.0 M)

0.0 FT (0.0 M)

1 - FULL HEIGHT (NO PARAPE

7 - TIMBER

3 - SIMPLE RAIL (joints at each

1.83 FT (0.56 M)

99.99 FT (99.99 M)

0.00 FT (0.00 M)

CONDITION AND APPRAISAL DATA, PROPOSED IMPROVEMENTS, AND COST

(58) DECK:

(59) SUPERSTRUCTURE:

(60) SUBSTRUCTURE:

(61) CHANNEL:

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

(222) APPROACHES:

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

(36) TRAFFIC SAFETY FEAT: ... 0N00

(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

5 - Stable; scour within limits of

2 - REHAB/RECONSTRUCTION

C - MODERATE

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1980-CHANNEL IMPROVED. 2010 est.- STEEL BACKED TIMBER RAILS INSTALLED ON BRIDGE AND AT APPROACHES.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

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PHOTOGRAPHS STRUCTURE NO. 5140-087P

PHOTO #1 - LOOKING SOUTH TOWARD BLOWING ROCK

FLOW

PHOTO #2 - WEST (UPSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW

LOOKING SOUTH, NOTE CRACKING OF

WEARING SURFACE

PHOTO #4 - LONGITUDINAL CRACKING OF

WEARING SURFACE

PHOTO #5 - TRANSVERSE CRACKING OF

NORTH APPROACH

PHOTO #6 - TRANSVERSE CRACKING OF

SOUTH APPROACH

PHOTO #7 - TYPICAL DEBRIS AND VEGETATION

GROWTH ON CURBLINE OF PAVED SHOULDER

PHOTO #8 - SEVERE SPALLING AND

DELAMINATION ON WEST HEADWALL

PHOTO #9 - TYPICAL LONGITUDINAL

CRACKING, SPALLING, AND DELAMINATION OF

TOP OF EAST HEADWALL, MIDSPAN SHOWN

PHOTO #10 - GENERAL VIEW OF SOUTH

ABUTMENT

PHOTO #11 - GENERAL UNDERSIDE VIEW LOOKING WEST

PHOTO #12 - EAST SIDE OF SLAB UNDERSIDE NEAR SOUTH

ABUTMENT; NOTE SEVERE SPALLING, DELAMINATION, AND

LONGITUDINAL CRACK WITH EFFLORESCENCE

PHOTO #13 - CRACKING WITH

EFFLORESCENCE, DELAMINATION AND

SPALLING ALONG EAST SIDE OF SLAB

UNDERSIDE

PHOTO #14 - DELAMINATED CONCRETE PATCH

ON EAST SIDE OF SLAB UNDERSIDE

PHOTO #15 - AREAS OF SCALING,

DELAMINATION, AND CRACKING WITH

EFFLORESCENCE IN CENTER OF SLAB

UNDERSIDE

PHOTO #16 - LONGITUDINAL CRACK WITH

EFFLORESCENCE IN CENTER OF SLAB

UNDERSIDE; NOTE DELAMINATED AREA

PHOTO #17 - DELAMINATION ALONG ENTIRE

LENGTH OF WEST SIDE OF SLAB UNDERSIDE;

NOTE CRACKING WITH EFFLORESCENCE

PHOTO #18 - AREA OF SPALLING AND

DELAMINATION ON WEST SIDE OF SLAB

UNDERSIDE

PHOTO #19 - GENERAL VIEW OF NORTH ABUTMENT; NOTE

EFFLORESCENCE AT BEARING AREA

PHOTO #20 - 1.5' DEEP SCOUR HOLE AT UPSTREAM SIDE OF NORTH

ABUTMENT; FLOW DIRECTS INTO ABUTMENT

PHOTO #21 - UPSTREAM CHANNEL

PHOTO #22 - DOWNSTREAM CHANNEL