Bridge Inspection Rpt_STR 5460-035P.pdf

STRUCTURE SUMMARY STRUCTURE NO. 5460-035P

FORGE CREEK BRIDGE #3 INSPECTION DATE: 6/19/18

BRIDGE IDENTIFICATION AND DESCRIPTION

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

MAIN SPAN TYPE: ............... STRINGER/MULTI-BEAM or GIRDER NO. OF APPR. SPANS:

# OF BEAMS, MAIN SPAN: .. 2 STRUCT. TOTAL LENGTH: ..

DECK TYPE: ......................... WOOD OR TIMBER MAX. SPAN LENGTH:

WEARING SURFACE: .......... NONE DECK WIDTH:

ABUT. FOUNDATIONS: ........ SPREAD FTG ON BEARING MAT'L CURB TO CURB WIDTH:

PIER FOUNDATION(S): ........ SPREAD FTG ON BEARING MAT'L YEAR BUILT:

ABUTMENT / PIER MAT'L: ... CONCRETE YEAR RECONSTRUCTED: ..

PROJ./PLAN REF. NO: ......... 17A2, 3B15 / NONE SKEW ANGLE:

NPS ROAD CLASS: .............. 2 - CONNECTOR ROAD FRACTURE CRITICAL:

STRUCTURE HISTORY: ...... 1995-CONCRETE FOOTING APRONS PLACED.

LOCATION

71.0 FT (21.6 M)

26.9 FT (8.2 M)

13.0 FT (4.0 M)

12.2 FT (3.7 M)

0 °

YES

GREAT SMOKY MOUNTAINS NATIONAL PARK MILE POINT: ..................... 1.64 (KM PT 2.64)

STATE: ................................. TENNESSEE LOCATION: 1.6 MI TO NPS RTE. 500

FACILITY CARRIED: ............ FORGE CREEK ROAD

FEATURE INTERSECTED: .. FORGE CREEK

STRUCTURE EVALUATION SUMMARY

This weathering steel beam bridge is located on Forge Creek Road, which is currently posted for a 5 ton weight limit.

This bridge is in poor condition overall. The main problem with this bridge is the laminar rusting of the structural steel resulting in section loss from the beam webs and bottom flanges.

Other problems include scour exposing footings at the abutments and piers with undermining of the northwest wingwall; drift accumulation lodged on the upstream side of the north pier; missing reflective object markers at the southeast and northwest corners; and loose and displaced reflective object marker post at the northeast and southwest corners.

This bridge is scheduled for replacement in the near future under Project GRSM 14(3), 112(1).

INSPECTION TEAM: M. BURNETT, C. BOSS (VOLKERT, INC.)

CONDITION ASSESSMENT:

MATT BURNETT, 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. 5460-035P

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

222.7 INSTALL REFLECTIVE OBJECT MARKERS AT SOUTHEAST AND NORTHWEST

CORNERS AND RESET MARKERS AT NORTHEAST AND SOUTHWEST CORNERS TO

HELP IMPROVE MOTORIST SAFETY UNTIL BRIDGE CAN BE REPLACED.

4 EA

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: This bridge is scheduled for replacement in the near future under Project GRSM 14(3), 112(1).

FIELD INSPECTION REPORT STRUCTURE NO. 5460-035P

G = GOOD (CODES 7 - 9) F = FAIR (CODES 5 - 6) P = POOR (CODES 0 - 4)

CONDITION RATING CODE EQUIVALENTS FOR SUB-ELEMENTS

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 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.

FAILED CONDITION - out of service; beyond corrective action.

CONDITION RATING CODES FOR ITEMS 58 - 62, 222, 223

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.

N

58. DECK ITEM REFERENCE AND REMARKS

OTHER

ALIGNMENT

DEFLECTION AND/OR VIBRATION

FASCIA(E)

DIAPHRAGMS AND BRACING

TRUSSES

FLOOR BEAMS AND STRINGERS

ARCH(ES) OR SLAB(S)

GIRDERS OR BEAMS

BEARING DEVICES

59. SUPERSTRUCTURE

OTHER

DEFLECTION AND/OR VIBRATION

UTILITIES

DRAINS AND DRAINAGE

PARAPETS AND/OR RAILINGS

CURBS, SIDEWALKS, AND MEDIAN

RIDEABILITY

WEARING SURFACE

EXPANSION JOINTS

DECK SLAB

ABUTMENTS

60. SUBSTRUCTURE

1.

10.

2.

3.

4.

5.

6.

7.

8.

9.

10.

9.

8.

7.

6.

5.

4.

3.

2.

1.

PAINT

11.

(BOLT SHAFTS)

F P N N N F N N G

N G

G G G N G N

F

N

G

F

58.1,4 2" X 8" (NOMINAL) SOUTHERN YELLOW PINE NAIL-LAMINATED DECK.

DECK MODERATELY WORN (2" D) AT SOUTH END IN WHEEL PATHS.

UNABLE TO VERIFY DUE TO TIMBER RUNNERS, SEE 58.3. MINOR

DECAY AT DECK PLANK ENDS.

58.3 2" X 12" (NOMINAL) LONGITUDINAL TIMBER RUNNER HAVE BEEN

PLACED ON TOP OF DECK SURFACE.

58.7 MINOR ACCUMULATION OF DEBRIS ALONG CURBS.

58.10 SEVERAL BOLT SHAFTS EXPOSED AT EDGE OF DECK PLANKS.

59.1 MINOR BULGING OF ELASTOMERIC BEARINGS AT NORTH PIER.

59.1,2,6 A588 WEATHERING STEEL. MODERATE TO SEVERE LAMINAR

RUSTING OF WEATHERING STEEL BEAMS, DIAPHRAGMS, AND

BEARINGS WITH MINOR TO MODERATE SECTION LOSS. WEB

THICKNESS IN NORTH SPAN MEASURES 0.37" WITH IMMEASURABLE

WEB THICKNESSES IN CENTER AND SOUTH SPANS. BOTTOM

FLANGE THICKNESS MEASURES 0.39" IN SOUTH SPAN, 0.27" IN

NORTH SPAN, AND 0.28" IN CENTER SPANS; DOWN TO 0.25" AT

ISOLATED LOCATIONS IN SOUTH AND NORTH SPANS.

60.1,6 MINOR DETERIORATION OF MORTAR JOINTS IN BREASTWALLS AND

WINGWALLS.

60.3 MINOR HONEYCOMBING ON BEARING SEATS AT SOUTH ABUTMENT.

1. BREASTWALLS OR COLUMNS G

2. PILE BENTS N

3. CAPS AND/OR BEARING SEATS G

4. BACKWALLS AND/OR BULKHEADS G

5. FOUNDATIONS G

6. WINGWALLS G

7. WEEP HOLES N

8. EXPANSION JOINTS N

9. EROSION AND/OR SCOUR F

10. SETTLEMENT OR DEFLECTION G

11. SLOPE PROTECTION N

12. OTHER N

PIER(S)

G13. WALLS AND/OR COLUMNS

N14. PILE BENTS

G15. CAPS AND/OR BEARING SEATS

G16. FOUNDATIONS

F17. EROSION AND/OR SCOUR

G18. SETTLEMENT OR DEFLECTION

N19. OTHER

FIELD INSPECTION REPORT STRUCTURE NO. 5460-035P

ITEM REFERENCE AND REMARKS

61. CHANNEL 6

1. ALIGNMENT F

2. EROSION AND/OR SCOUR G

3. CHANNEL PROTECTION N

4. WATERWAY OBSTRUCTIONS F

5. OTHER N

6. ADEQUACY OF OPENING INSUFF

7. NORMAL VELOCITY MED

8. AVERAGE CLEAR OPENING 4 FT.

9. STREAM BED COMPOSITION :

ROCK, SAND, STONES

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 N G G G F G N

223. RETAINING WALL 7

1. WALL

2. WEEP HOLES

3. FOUNDATION

4. EROSION AND/OR SCOUR

5. SETTLEMENT OR DEFLECTION

6. OTHER

G N N G G N

36. TRAFFIC AND SAFETY FEATURES

A. BRIDGE RAILINGS

B. TRANSITIONS

C. APPROACH GUARDRAILS

D. APPROACH GUARDRAIL ENDS

N N N N

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.

60.5,6,9 NORTH ABUTMENT FOOTING EXPOSED UP TO 4' H FOR FULL

LENGTH. MODERATE SCOUR ALONG NORTHWEST WINGWALL TO

RETAINING WALL TRANSITION WITH 4' OF UNDERMINING.

SOUTH ABUTMENT FOOTING EXPOSED, 7.8' L X 1.4' H. SOUTHEAST

WINGWALL FOOTING EXPOSED, 7.5' L X 1.4' H.

60.13 MINOR TO MODERATE HONEYCOMBING ON SOUTH FACE OF SOUTH

PIER AND FOOTING OF CUTOFF WALL.

60.15,16 MINOR SPALLING WITH EXPOSED REBAR DUE TO INSUFFICIENT

CONCRETE COVER ON BOTH FACES OF NORTH PIER CAP.

60.17 SOUTH PIER FOOTING EXPOSED UP TO 1.9' H; NORTH PIER

FOOTING UP TO 1.8' H.

61.1 STREAM ANGLE OF ATTACK APPROXIMATELY 45° TO BRIDGE.

61.2 SEE BRIDGE FILE FOR SCOUR EVALUATION.

61.4 SEVERAL LARGE FALLEN TREES AND DEBRIS IN DOWNSTREAM

CHANNEL. HEAVY DRIFT ACCUMULATION LODGED ON UPSTREAM

SIDE OF NORTH PIER.

61.6 STREAM OVERTOPPED BRIDGE DURING 3/94 AND 11/96 FLOODS.

222.4,6 MINOR RUTTING AND POTHOLES AT BOTH APPROACHES.

222.7 REFLECTIVE OBJECT MARKERS AT NORTHEAST AND SOUTHWEST

CORNERS LOOSE AND OUT OF POSITION WITH BRIDGE. NO

REFLECTIVE OBJECT MARKERS PROVIDED AT NORTHWEST AND

SOUTHEAST CORNERS.

ROAD POSTED FOR 5 TON LOAD LIMIT.

STRUCTURE LOAD RATING STRUCTURE NO. 5460-035P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 7 6 11 10

HS 12 11 21 19

TYPE 3 16 15 27 24

TYPE 3S2 26 24 43 39

TYPE 3-3 28 25 47 43

DESIGN LOADING: H15 (M13.5)

CAPACITY MEETS OR EXCEEDS DESIGN LOAD

X CAPACITY IS LESS THAN DESIGN LOAD

ORIGINAL LOAD RATING CALCULATION APPLICABLE

X ORIGINAL LOAD RATING CALCULATION REVISED

DATE OF LOAD RATING CALCULATION: 10/10

LOAD RATING CONTROLLED BY: DECK

REMARKS: SEE BRIDGE FILE FOR LOAD RATING CALCULATIONS.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 5460-035P

STRUCTURE IDENTIFICATION

(201) PARK: GREAT SMOKY MOUNTAINS NATIONAL PARK

(202) STRUCTURE NAME: .......... FORGE CREEK BRIDGE #3

(203) STRUCTURE KIND: ............1 - BRIDGE

(204) STRUCTURE NUMBER: ..... 5460-035P

(205) NPS REGION: .................... 4 - SOUTHEAST

(206) ROUTE CODE NUMBER: ... 126

(207) ROAD SECTION NO: ..........035P

(208) NPS ROAD CLASS: ............ 2 - CONNECTOR ROAD

(209) WITHIN NPS BNDRY?: .......YES

(210) OPERATING UNIT: ............. N. DIST.

(211) PROJECT NO(S): ................17A2, 3B15

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

(21) MAINTAINED BY: ................. 66 - NATIONAL PARK SERVICE

(22) OWNER: ............................... 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: ..

474 - TENNESSEE (TN)

009 - BLOUNT

167001210

FORGE CREEK

FORGE CREEK ROAD

5460035P0000000

1.6 MI TO NPS RTE. 500

99.99 FT (99.99 M)

1.64 (KM PT 2.64)

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:

3 - STEEL

02 - STRINGER/MULTI-BEAM or GIRDER

26.9 FT (8.2 M)

71.0 FT (21.6 M)

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

2 - SPREAD FTG ON BEARING MAT'L

8 - WOOD OR TIMBER

(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: .. 0 - NONE

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: ......... P - POSTED FOR LOAD

(66) INVENTORY RATING: ...... 12.0 TONS (10.9 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 21.0 TONS (19.1 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 6/18 (91) FREQ. OF INSP: 24 MONTHS (92 / 93) CRITICAL FEATURE INSPECTION (CFI):

(219) ADD. STUDIES NEEDED: N - 0 - NONE (A) FRACTURE CRITICAL: ... YES

INSP. EVERY: 24 MONTHS - LAST INSP. : 6/18 (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. 5460-035P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 35°34'07.30"

(17) LONGITUDE: ......................... 83°50'49.10"

(19) DETOUR LENGTH: ............... 50 MI (80 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:

12.2 FT (3.7 M)

13.0 FT (4.0 M)

17.0 FT (5.2 M)

11.0 FT (3.4 M)

3.0 FT (0.9 M)

3.0 FT (0.9 M)

0 - NO MEDIAN

0 °

NO

12.2 FT (3.7 M)

0.0 FT (0.0 M)

0.0 FT (0.0 M)

4 - CURB-TYPE WHEEL GUAR

7 - TIMBER

1 - CONTINUOUS RAIL

0.77 FT (0.23 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:

(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

4 - Stable; action required to pro

1 - MAINTENANCE

C - MODERATE

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1995-CONCRETE FOOTING APRONS PLACED.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

https://83�50'49.10 https://35�34'07.30

APPENDIX STRUCTURE NO. 5460-035P

PHOTOGRAPHS STRUCTURE NO. 5460-035P

PHOTO #1 - LOOKING SOUTH TOWARD PARSON BRANCH ROAD

FLOW

PHOTO #2 - EAST (UPSTREAM) SIDE

PHOTO #3 - GENERAL TOP SIDE VIEW LOOKING NORTH; NOTE DEBRIS

ACCUMULATION ON DECK

PHOTO #4 - GENERAL UNDERSIDE VIEW OF SOUTH SPAN LOOKING

NORTH

PHOTO #5 - POTHOLES IN SOUTH APPROACH SURFACING

PHOTO #6 - NORTH APPROACH POSTING

PHOTO #7 - GENERAL VIEW OF SOUTH ABUTMENT; NOTE EXPOSED

FOOTING

PHOTO #8 - EXPOSED SOUTH ABUTMENT AND SOUTHEAST WINGWALL

FOOTING

PHOTO #9 - GENERAL VIEW OF SOUTH PIER, SOUTH FACE SHOWN

PHOTO #10 - EXPOSED NORTH PIER FOOTING, SOUTH FACE SHOWN;

NOTE EXPOSED REBAR

PHOTO #11 - TYPICAL SECTION LOSS FROM BEARING CLIP ANGLES,

WEST BEARING AT NORTH PIER SHOWN

PHOTO #12 - TYPICAL LAMINAR RUSTING OF BEAMS, WEST BEAM IN

NORTH SPAN SHOWN

PHOTO #13 - TYPICAL DECAY OF DECK PLANK ENDS; NOTE EXPOSED

CURB BOLT

PHOTO #14 - GENERAL VIEW OF NORTH ABUTMENT; NOTE EXPOSED

FOOTING

PHOTO #15 - SCOUR AND UNDERMINING OF NORTHWEST WINGWALL

PHOTO #16 - DRIFT ACCUMULATION ON UPSTREAM SIDE OF NORTH

PIER

PHOTO #17 - LOOKING UPSTREAM FROM DECK; NOTE CHANNEL

ALIGNMENT

PHOTO #18 - LOOKING DOWNSTREAM FROM DECK; NOTE CHANNEL

ALIGNMENT