5140-204T3188_Redacted.pdf

BRIDGE INSPECTION REPORT

HEADQUARTERS PEDESTRIAN BRIDGE

TRAIL OVER SWAMP

BLUE RIDGE PARKWAY

LW

STRUCTURE NO. 5140-204T

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 6/26/13

Report prepared by: NS

Federal Highway Administration Federal Lands Bridge Office Bridge Inspection and Management Program 21400 Ridgetop Circle Sterling, Virginia 20166 http://www.efl.fhwa.dot.gov/FLHBO/BIP http://www.efl.fhwa.dot.gov/FLHBO/BIP

STRUCTURE SUMMARY STRUCTURE NO. 5140-204T

HEADQUARTERS PEDESTRIAN BRIDGE INSPECTION DATE: 6/26/13

BRIDGE IDENTIFICATION AND DESCRIPTION

MAIN SPAN MATERIAL:

MAIN SPAN TYPE:

# OF BEAMS, MAIN SPAN: ..

DECK TYPE:

WEARING SURFACE:

ABUT. FOUNDATIONS:

PIER FOUNDATION(S):

ABUTMENT / PIER MAT'L: ...

PROJ./PLAN REF. NO:

NPS ROAD CLASS:

STRUCTURE HISTORY:

STEEL

TRUSS - THRU

CONCRETE CAST-IN-PLACE

NONE

SPREAD FTG ON BEARING MAT'L

SPREAD FTG ON BEARING MAT'L

MASONRY / STEEL

5 - ADMINISTRATIVE

NO. OF MAIN SPANS:

NO. OF APPR. SPANS:

STRUCT. TOTAL LENGTH: ..

MAX. SPAN LENGTH:

DECK WIDTH:

CURB TO CURB WIDTH:

YEAR BUILT:

YEAR RECONSTRUCTED: ..

SKEW ANGLE:

FRACTURE CRITICAL:

181.0 FT (55.2 M)

60.2 FT (18.3 M)

8.9 FT (2.7 M)

7.9 FT (2.4 M)

N/A

0 °

YES

LOCATION

BLUE RIDGE PARKWAY MILE POINT: ..................... 0.00 (KM PT 0.00)

STATE: ................................. NORTH CAROLINA LOCATION: Between Visitor Center Parking Lot and Park Headquarters Building. FACILITY CARRIED: ............ TRAIL

FEATURE INTERSECTED: .. SWAMP

STRUCTURE EVALUATION SUMMARY

This weathering steel through truss bridge is in good condition overall. Problems include a moderate accumulation of rock on the abutment bearing seats, moderate vine growth on the east pier, and a broken paving stone on the north side of the west approach. There is up to 2" of soil in a recess in the west abutment bearing seat, but it appears to have been constructed in this manner.

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: D. KENT, C. MARBURGER (GANNETT FLEMING)

CONDITION ASSESSMENT:

DANIEL E. KENT, P.E., FIELD TEAM LEADER

REPORT REVIEW :

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

REPORT APPROVAL: DATE: 10/31/13

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 5140-204T

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.

60.3 REMOVE ROCK ACCUMULATION FROM ABUTMENT BEARING SEATS. 1 LS $

60.14 PERIODICALLY REMOVE VINE GROWTH FROM BENTS. 1 LS

222.4 REPLACE BROKEN PAVING STONE ON NORTH SIDE OF WEST APPROACH. 1 LS

PRELIM. MAINTENANCE TOTAL :

ITEM

NO.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS)

QTY. UNIT

UNIT

COST ESTIMATES

PRELIM. COST

REHAB. RECONSTR.

PRELIM. REHABILITATION/RECONSTRUCTION TOTAL :

COST ESTIMATE SUMMARY

PRELIM. MAINTENANCE TOTAL:

PRELIM. REHABILITATION TOTAL:

PRELIM. RECONSTRUCTION TOTAL: ..

TOTAL ITEMIZED COSTS:

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. 5140-204T

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 section 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 8 ITEM REFERENCE AND REMARKS

G1. DECK SLAB

G2. EXPANSION JOINTS

N3. WEARING SURFACE

G4. RIDEABILITY

N5. CURBS, SIDEWALKS, AND MEDIAN

G6. PARAPETS AND/OR RAILINGS

G7. DRAINS AND DRAINAGE

N8. UTILITIES

G9. DEFLECTION AND/OR VIBRATION

N10. OTHER

59. SUPERSTRUCTURE 8

G1. BEARING DEVICES

N2. GIRDERS OR BEAMS

N3. ARCH(ES) OR SLAB(S)

G4. FLOOR BEAMS AND STRINGERS

G5. TRUSSES

G6. DIAPHRAGMS AND BRACING

N7. PAINT

N8. FASCIA(E)

G9. DEFLECTION AND/OR VIBRATION

G10. ALIGNMENT

N11. OTHER

60. SUBSTRUCTURE 8

58.1 CAST-IN-PLACE CONCRETE DECK WITH STAY-IN-PLACE FORMS.

MINOR DEPRESSION ON DECK SURFACE NEAR EAST ABUTMENT.

58.1, 59.5, 60.14

NUMEROUS WASP AND HORNET NESTS; SOME INSIDE

STRUCTURAL TUBING.

58.6 ALUMINUM HANDRAILS MOUNTED TO BOTH TRUSSES.

60.3 UP TO 2" OF SOIL FILLS RECESS IN BEARING SEAT AT WEST

ABUTMENT, POSSIBLY CONSTRUCTED IN THIS MANNER.

MODERATE ROCK ACCUMULATION ON NORTHWEST AND EAST

ABUTMENT ABUTMENT BEARINGS.

60.4 MINOR SPALLING WITH EXPOSED FORM TIES IN WEST ABUTMENT

BACKWALL.

60.14 MODERATE VINE GROWTH ON EAST BENT.

ABUTMENTS

BREASTWALLS OR COLUMNS1. G

PILE BENTS2. N

CAPS AND/OR BEARING SEATS3. G

BACKWALLS AND/OR BULKHEADS4. G

FOUNDATIONS5. N

WINGWALLS6. G

WEEP HOLES7. N

EXPANSION JOINTS8. N

EROSION AND/OR SCOUR9. G

SETTLEMENT OR DEFLECTION10. G

SLOPE PROTECTION11. N

OTHER 12. N

PIER(S)

WALLS AND/OR COLUMNS 13. N

PILE BENTS14. G

CAPS AND/OR BEARING SEATS15. G

FOUNDATIONS16. G

EROSION AND/OR SCOUR17. G

SETTLEMENT OR DEFLECTION18. G

OTHER 19. N

FIELD INSPECTION REPORT STRUCTURE NO. 5140-204T

ITEM REFERENCE AND REMARKS

STREAM BED COMPOSITION : 9.

AVERAGE CLEAR OPENING 8.

NORMAL VELOCITY 7.

ADEQUACY OF OPENING 6.

OTHER 5.

WATERWAY OBSTRUCTIONS 4.

CHANNEL PROTECTION3.

EROSION AND/OR SCOUR2.

ALIGNMENT1.

61. CHANNEL N

222. APPROACHES 8

OTHER 9.

ALIGNMENT 8.

SIGNS7.

SETTLEMENT 6.

EROSION5.

SURFACING4.

APPROACH GUARDRAIL 3.

2. RELIEF JOINTS

APPROACH SLABS1.

(BOLLARDS)

N N G G G G G G G

223. RETAINING WALL N

OTHER 6.

SETTLEMENT OR DEFLECTION5.

EROSION AND/OR SCOUR4.

FOUNDATION3.

WEEP HOLES2.

1. WALL

36. TRAFFIC AND SAFETY FEATURES

APPROACH GUARDRAIL ENDSD.

APPROACH GUARDRAILSC.

TRANSITIONSB.

BRIDGE RAILINGSA. 1

N N

222.4 BROKEN PAVING STONE ON NORTH SIDE OF WEST APPROACH.

222.6 MINOR SETTLEMENT OF PAVING STONES AT WEST APPROACH.

222.7 "OFFICE HOURS MONDAY-FRIDAY 8:30AM-4:30PM" SIGN POSTED ON

NORTHEAST APPROACH GUARDRAIL. BUILDING DEDICATION

PLAQUE AT SOUTHEAST APPROACH.

222.9 STEEL BOLLARDS AT EAST APPROACH.

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.

APPENDIX STRUCTURE NO. 5140-204T

PHOTOGRAPHS STRUCTURE NO. 5140-204T

PHOTO #1 - LOOKING EAST TOWARD PARKING LOT

PHOTO #2 - SOUTH SIDE

PHOTO #3 - GENERAL TOP SIDE VIEW LOOKING EAST

PHOTO #4 - GENERAL UNDERSIDE VIEW OF EAST SPAN LOOKING

WEST

PHOTO #5 - TYPICAL APPROACH RAILING,

NORTHEAST RAILING SHOWN

PHOTO #6 - TYPICAL JOINT AT BRIDGE END,

EAST END SHOWN

PHOTO #7 - DEPRESSION IN CONCRETE DECK NEAR EAST ABUTMENT

PHOTO #8 - TYPICAL CONDITION OF PIER BEARINGS, NORTH BEARING

AT EAST PIER SHOWN FROM DECK; NOTE VEGETATION

PHOTO #9 - TYPICAL CONDITION OF

WEATHERING STEEL AND ALUMINUM

HANDRAIL

PHOTO #10 - TYPICAL JOINT COVER OVER

PIERS, EAST PIER SHOWN

PHOTO #11 - BROKEN STONE ON NORTH SIDE OF WEST APPROACH

PHOTO #12 - SOUTH TRUSS AND RAIL

PHOTO #13 - GENERAL VIEW OF EAST ABUTMENT; NOTE ROCK

ACCUMULATION

PHOTO #14 - SOUTH BEARING AT EAST ABUTMENT; NOTE ROCK

ACCUMULATION, NORTH BEARING SIMILAR

PHOTO #15 - TYPICAL CONDITION OF

WEATHERING STEEL FLOOR BEAMS AND

BRACING

PHOTO #16 - GENERAL VIEW OF EAST PIER;

NOTE VEGETATION GROWTH

PHOTO #17 - GENERAL UNDERSIDE VIEW OF

CENTER SPAN LOOKING EAST

PHOTO #18 - GENERAL VIEW OF WEST PIER

PHOTO #19 - TYPICAL CONDITION OF PIER BEARINGS, NORTH

BEARING AT WEST PIER SHOWN

PHOTO #20 - TYPICAL PIER FOUNDATION, NORTH FOOTING AT WEST

PIER SHOWN

PHOTO #21 - GENERAL VIEW OF WEST

ABUTMENT

PHOTO #22 - SOIL ACCUMULATION IN RECESS

IN WEST ABUTMENT BEARING SEAT

PHOTO #23 - NORTH BEARING AT WEST ABUTMENT; NOTE SOIL AND

ROCK ACCUMULATION

PHOTO #24 - SOUTH BEARING SEAT AT WEST ABUTMENT; NOTE SOIL

AND ROCK ACCUMULATION

PHOTO #25 - TYPICAL SPALLING WITH EXPOSED FORM TIE ON WEST

ABUTMENT BACKWALL