Bridge_Inspection_Report_STR_6640-001P_Big_Spring.pdf

BRIDGE INSPECTION REPORT

BIG SPRING BRIDGE

ROUTE 103 OVER SPRING BRANCH

OZARK NATIONAL SCENIC RIVERWAYS

LS

STRUCTURE NO. 6640-001P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 5/11/16

ED

Report prepared by:

Federal Highway Administration

FLH Office of Bridges and Structures 21400 Ridgetop Circle Sterling, VA 20166 703-404-6201 https://bridge.flhd.fhwa.dot.gov

STRUCTURE NO. 6640 001P

BIG SPRING BRIDGE INSPECTION DATE: 5/11/16

STRUCTURE SUMMARY

BRIDGE IDENTIFICATION AND DESCRIPTION

MAIN SPAN MATERIAL: ....... NO. OF MAIN SPANS: .......... WOOD or TIMBER 6

MAIN SPAN TYPE: ............... NO. OF APPR. SPANS: ........ STRINGER/MULTI-BEAM or GIRDER 0

# OF BEAMS, MAIN SPAN: .. 10 STRUCT. TOTAL LENGTH: .. 120.0 FT (36.6 M)

DECK TYPE: ......................... MAX. SPAN LENGTH: .......... 20.0 FT (6.1 M) WOOD OR TIMBER

WEARING SURFACE: .......... DECK WIDTH: ...................... 33.0 FT (10.1 M) BITUMINOUS

ABUT. FOUNDATIONS: ........ PILE BENT CURB TO CURB WIDTH: ..... 26.0 FT (7.9 M)

PIER FOUNDATION(S): ........ PILE BENT YEAR BUILT:

ABUTMENT / PIER MAT'L: ... WOOD OR TIMBER YEAR RECONSTRUCTED: .. N/A

PROJ./PLAN REF. NO: ......... SKEW ANGLE: ..................... 0 °

NPS ROAD CLASS:

6640-1240 / 41072

FRACTURE CRITICAL: ........ NO

STRUCTURE HISTORY: ...... 1990-Rehab of N. Abutment & app. 2003-7 post section of W. railing repl. 2010- Add. supports installed below sidewalk. Sidewalk and W. railing repl. & pile moist. readings taken.

1 - PRINCIPAL PARK ROAD

LOCATION

OZARK NATIONAL SCENIC RIVERWAYS MILE POINT: ..................... 0.02 (KM PT 0.03)

STATE: ................................. MISSOURI LOCATION: ADJACENT TO BIG SPRING PARKING

LOT.

FACILITY CARRIED: ............ ROUTE 103

FEATURE INTERSECTED: .. SPRING BRANCH

STRUCTURE EVALUATION SUMMARY

This glue-laminated timber bridge is in generally fair to poor condition, and is scheduled to be replaced in the near future under Project OZAR 10(2). The most serious problems at this time include extensive decay of the deck panel overhangs, particularly at the deck drain areas; and severe decay of the east curb and railing system, including numerous railing posts.

Due to the presence of an asphalt overlay, it is not possible to ascertain the full extent of the decay in the deck.

However, when repairs were made to the timber sidewalk in 2010, extensive decay was discovered in the portions of the beams, bent caps, and sidewalk support members that were exposed by the removal of the sidewalk.

It should also be noted that the timber piles are showing signs of significant decay, as indicated by visual observations and sounding, in addition to moisture readings and a boring taken during a previous inspection.

INSPECTION TEAM: N. SASS, A. KELLY (SHORT ELLIOTT HENDRICKSON INC.)

CONDITION ASSESSMENT:

NINA L. SASS, P.E., FIELD TEAM LEADER

REPORT REVIEW:

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

REPORT APPROVAL: DATE: 9/30/16

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 6640 001P

226 PRIORITY OF IMPROVEMENT B

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.

PRELIM. MAINTENANCE TOTAL :

ITEM

REHABILITATION/RECONSTRUCTION

QTY. UNIT

UNIT

COST ESTIMATES

PRELIM. COST

NO (TYPICALLY NEEDED WITHIN 5 YEARS)

REHAB. RECONSTR.

PRELIM. REHABILITATION/RECONSTRUCTION TOTAL :

PRELIMINARY ESTIMATE TOTAL* : ........................................... $0

(*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: Structure is programmed for replacement in the near future under Project OZAR 10(2).

FIELD INSPECTION REPORT STRUCTURE NO. 6640 001P

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)

58. DECK 4

DECK SLAB1. P

EXPANSION JOINTS2. F

WEARING SURFACE3. P

RIDEABILITY4. F

CURBS, SIDEWALKS, AND MEDIAN5. P

PARAPETS AND/OR RAILINGS6. P

DRAINS AND DRAINAGE7. F

UTILITIES8. (SEWER LINE) F

DEFLECTION AND/OR VIBRATION9. G

OTHER10. (STRIPING) F

59. SUPERSTRUCTURE 5

BEARING DEVICES1. G

GIRDERS OR BEAMS2. F

ARCH(ES) OR SLAB(S)3. N

FLOOR BEAMS AND STRINGERS4. F

TRUSSES5. N

DIAPHRAGMS AND BRACING6. G

7. PAINT N

FASCIA(E)8. N

DEFLECTION AND/OR VIBRATION9. F

ALIGNMENT10. G

OTHER11. N

60. SUBSTRUCTURE 5

ITEM REFERENCE AND REMARKS

ABUTMENTS

58.1 GLULAM DECK PANELS. MODERATE TO SEVERE DECAY OF DECK

PANEL EDGES WITH VEGETATION GROWTH PRESENT IN SOME

LOCATIONS; WORST AREAS ARE AT DECK DRAINS. DECAY

EXTENDS THROUGHOUT OVERHANGS, AND INTO BAY #2 IN SOME

LOCATIONS.

DECK UNDERSIDE SOUNDS SLIGHTLY DAMP THROUGHOUT;

DISCOLORED AT INTERFACE WITH BEAMS AND IN SEVERAL OTHER

LOCATIONS, POSSIBLY INDICATIVE OF DECAY.

58.2 DECK JOINT AT BENT #3 FILLED WITH ASPHALT; STEEL ARMORING

TWISTED AND GOUGED FOR FULL LENGTH.

58.3,4 WIDESPREAD DETERIORATION OF BITUMINOUS WEARING

SURFACE; MODERATE TO HEAVY TRANSVERSE, LONGITUDINAL AND

MAP CRACKING THROUGHOUT. SOME CRACKS HAVE BEEN SEALED

BUT HAVE REOPENED. SEVERAL ASPHALT PATCHES THROUGHOUT.

NUMEROUS POTHOLES THROUGHOUT SPANS #4 TO #6 IN

NORTHBOUND LANE. FEWER POTHOLES ALONG SOUTHBOUND.

58.5,6 MINOR SPLITTING OF SIDEWALK DECK PLANKS. MINOR CUPPING

OF SIDEWALK PLANKS DUE TO IMPROPER INSTALLATION.

MODERATE CHECKING OF TIMBER RAILING SYSTEM ON EAST SIDE.

SEVERE DECAY AT BOTTOM OF RAIL POSTS WITH 35% OF POSTS

AFFECTED; MINOR TO MODERATE DECAY IN SEVERAL OTHER

AREAS THROUGHOUT POSTS. SEVERE DECAY AT BASE OF END

POSTS IN WINGWALL FILL LOCATIONS; POSTS ARE LOOSE.

MODERATE TO SEVERE DECAY OF EAST CURB, MAINLY TOWARD

SOUTH END, INCLUDING SECTION LOSS; WIDESPREAD MODERATE

VEGETATION GROWTH IN TIMBER CURB BOLT HOLES.

58.7 DEBRIS AND VEGETATION GROWTH ALONG CURBLINES.

1. BREASTWALLS OR COLUMNS N

2. PILE BENTS F

3. CAPS AND/OR BEARING SEATS F

4. BACKWALLS AND/OR BULKHEADS F

5. FOUNDATIONS (BURIED) N

6. WINGWALLS F

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)

N13. WALLS AND/OR COLUMNS

F14. PILE BENTS

F15. CAPS AND/OR BEARING SEATS

N16. FOUNDATIONS

G17. EROSION AND/OR SCOUR

G18. SETTLEMENT OR DEFLECTION

N19. OTHER

AND REMARKSITEM REFERENCE

61. CHANNEL 5

G 1. ALIGNMENT

G2. EROSION AND/OR SCOUR

N 3. CHANNEL PROTECTION

F 4. WATERWAY OBSTRUCTIONS

G 5. OTHER (FLOOD GAGE)

INSUFF ADEQUACY OF OPENING 6.

7. MEDNORMAL VELOCITY

12 FT. 8. AVERAGE CLEAR OPENING

9. STREAM BED COMPOSITION :

STONES

222. APPROACHES 6

OTHER 9.

ALIGNMENT 8.

SIGNS7.

SETTLEMENT6.

EROSION5.

SURFACING4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS 2.

APPROACH SLABS 1. N

N

N

F

F

F

N

F

N

223. RETAINING WALL N

OTHER6.

SETTLEMENT OR DEFLECTION5.

EROSION AND/OR SCOUR 4.

FOUNDATION 3.

WEEP HOLES2.

WALL1.

36. TRAFFIC AND SAFETY FEATURES

APPROACH GUARDRAIL ENDSD.

APPROACH GUARDRAILSC.

TRANSITIONSB.

BRIDGE RAILINGSA. 0

N

N

N

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.

58.8 3" AND 12" UTILITY PIPES IN BAY #2, 4" PIPE IN BAY #3, AND 2"

UTILITY LINE ALONG SOUTH ABUTMENT CAP. MODERATE RUSTING

OF 12" UTILITY PIPE AT SOUTH END. MINOR RUSTING OF UTILITY

PIPE SUPPORT BRACKETS AND HANGERS FOR 4" AND 12" UTILITY

LINES.

58.10 MODERATE DETERIORATION OF EDGE OF LANE PAVEMENT

STRIPING.

59.1 MINOR DEFORMATION OF GALVANIZED STEEL BEARING SADDLES

AT ISOLATED LOCATIONS THROUGHOUT BENT CAPS; UP TO 1/2"

GAP BETWEEN EDGES OF PLATES AND TOP OF BENT CAPS.

59.2 MINOR CHECKING OF GLULAM TIMBER BEAMS. MINOR MOLD ON

UNDERSIDE OF SEVERAL BEAMS. SEVERAL BEAMS DISCOLORED

AT INTERFACE WITH DECK. MINOR SPOT DECAY IN SOME AREAS.

MODERATE TO SEVERE DECAY OF TOP SURFACE OF BEAMS UNDER

SIDEWALK. WORST AREAS OF DECAY ON TOP OF BEAM #1 IN SPAN

#4, EAST FACE OF BEAM #1 IN SPAN #1, AND WEST FACE OF BEAM

#2 ADJACENT TO BENT #4. REPAIRS ANTICIPATED DURING

PREVIOUS INSPECTION DO NOT APPEAR TO HAVE BEEN

PERFORMED.

59.4,6 MODERATE DECAY OF TOP AND SIDES OF ORIGINAL SIDEWALK

STRINGERS IN SEVERAL LOCATIONS. MODERATE TO SEVERE

DECAY OF ENDS OF ORIGINAL SIDEWALK CROSS BEAMS.

ADDITIONAL SUPPORT CROSS BEAMS INSTALLED BELOW

ORIGINALS; MINOR DECAY EVIDENT ON TOP OF NEW BEAMS AT

INTERFACE WITH DECK ENDS.

59.9 SIGNIFICANT VIBRATION UNDER VEHICLE LOADS.

60.2,14 MINOR TO MODERATE CHECKING OF TIMBER PILES. MINOR TO

MODERATE DECAY OF OUTER LAYERS NEAR AND BELOW

GROUNDLINE AND WATERLINE. MOISTURE CONTENT READINGS

TAKEN DURING 2010 INSPECTION AT PILE #2, SOUTH ABUTMENT,

AND PILE #4, BENT #1. READINGS INDICATED DRAMATICALLY

INCREASED DECAY SUSCEPTIBILITY IN BOTTOM PORTIONS OF

PILES AS COMPARED TO PORTIONS ABOVE NORMAL HIGH WATER

MARK. CORE SAMPLE AT PILE #4, BENT #1, SHOWED

APPROXIMATELY 1" DEEP DECAY.

MINOR TO MODERATE DECAY OF LATERAL BRACING AT WATERLINE;

SEVERE DECAY IN A FEW LOCATIONS.

ADDITIONAL ITEM REFERENCE AND REMARKS

60.3,15 MINOR TO MODERATE DECAY NOTED AT ENDS OF CAPS AND ON TOP SURFACE IN AREAS UNDER SIDEWALK. 8"

DEEP AREA OF DECAY AT EAST END OF BENT #1 CAP AND BRACING. DECAY AT NORTH ABUTMENT BENT CAP

ALONG FACE IN CONTACT WITH BULKHEAD.

BENT CAPS IN GOOD CONDITION IN AREAS PROTECTED BY DECK; MINOR CHECKING. SOIL AND DEBRIS BUILDUP

ON TOP OF CAP AT NORTH ABUTMENT AND AT PILE BENT #1.

60.4 MINOR TO MODERATE DECAY OF NORTH ABUTMENT BACKWALL IN SEVERAL LOCATIONS.

MINOR SPLITS IN BULKHEAD TIMBERS AT BOTH ABUTMENTS. SEE ALSO 60.9.

60.6 MINOR TO MODERATE DECAY OF TIMBER WINGWALLS; SEVERE LOCALIZED DECAY AT TOP OF NORTHEAST

WINGWALL END PILE. HEAVY VEGETATION GROWTH ON AND ALONG WINGWALLS IMPEDE INSPECTION.

60.9 MINOR TO MODERATE LOSS OF BACKFILL MATERIAL FROM UNDER NORTH BULKHEAD INCLUDING UP TO 4'

UNDERMINING AROUND SECOND PILE FROM WEST. SOUTH BULKHEAD IS UNDERMINED UP TO 14" FOR ENTIRE

WIDTH OF ABUTMENT. SEE ALSO 222.5.

MINOR UNDERMINING (UP TO 8") AT BASE OF NORTHWEST WINGWALL.

61.4,6 DEBRIS CAUGHT ON TOP OF CAPS AND AGAINST MOST PILES AND LATERAL BRACING DUE TO HIGH WATER

FLOW. DEBRIS ACCUMULATION AT UPSTREAM END OF PILE BENTS #2, #3, AND #4. NO DEBRIS OBSERVED AT

2016 INSPECTION; MAY BE UNDER WATER LEVEL.

61.5 FLOOD GAGE ATTACHED TO DOWNSTREAM SIDE OF BENT #3.

222.4,5,6 MINOR SETTLEMENT AT APPROACHES. MODERATE DIP (SETTLEMENT) AT SOUTH APPROACH, NORTHBOUND

LANE. PARK NOTED SINKHOLE IN SOUTH APPROACH, SOUTHBOUND LANE, SEVERAL MONTHS AFTER 2010

INSPECTION; SINKHOLE HAS NOT BEEN NOTICED DURING SUBSEQUENT INSPECTIONS. MINOR PATCHES OF

PAVEMENT AT APPROACHES. THERE IS AN 8' X 12' AREA IN THE SOUTH APPROACH WEST SHOULDER THAT WAS

FILLED WITH GRAVEL AND BARRICADED OFF FROM A POTENTIAL SINKHOLE AT TIME OF 2016 INSPECTION.

PARK OFFICIALS INDICATED, DURING PREVIOUS INSPECTIONS, THAT STRUCTURE HAS BEEN OVERTOPPED

DURING HIGH FLOOD EVENTS.

222.8 SHARP HORIZONTAL CURVE AT BOTH APPROACHES.

36.A BRIDGE RAILINGS DO NOT MEET CURRENT SAFETY STANDARDS FOR VEHICULAR BARRIERS.

STRUCTURE NO. 6640 001P

INSPECTION DATE: 5/11/16

TRUCK TYPE

TONS

INVENTORY RATING (NORMAL TRAFFIC)

METRIC TONS METRIC TONSTONS

OPERATING RATING (MAXIMUM LOAD)

H

HS

TYPE 3

TYPE 3S2

TYPE 3-3

DESIGN LOADING:

DATE OF LOAD RATING CALCULATION:

LOAD RATING CONTROLLED BY:

REMARKS:

CAPACITY MEETS OR EXCEEDS DESIGN LOAD

CAPACITY IS LESS THAN DESIGN LOAD

ORIGINAL LOAD RATING CALCULATION APPLICABLE

ORIGINAL LOAD RATING CALCULATION REVISED

X

STRUCTURE LOAD RATING

BIG SPRING BRIDGE

H15 (M13.5)

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 6640 001P

STRUCTURE IDENTIFICATION

(201) PARK: OZARK NATIONAL SCENIC RIVERWAYS (1) STATE: ....................................... 297 - MISSOURI (MO)

(202) STRUCTURE NAME: .......... BIG SPRING BRIDGE (2) STATE HWY. AGENCY DIST:

(203) STRUCTURE KIND: ............ 1 - BRIDGE (3) COUNTY CODE: ........................ 035 - CARTER

(4) CITY/PLACE CODE: ................... (204) STRUCTURE NUMBER: ..... 6640-001P

(205) NPS REGION: .................... 5 - MIDWEST (5) INVENTORY ROUTE:

(206) ROUTE CODE NUMBER: ... 10 (6) FEATURES INTERSECTED:....... SPRING BRANCH

(207) ROAD SECTION NO: ..........001P (7) FACILITY CARRIED: .................. ROUTE 103

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD (8) STATE STRUCTURE NO: .......... 6640001P0000000

(209) WITHIN NPS BNDRY?: ....... YES (9) LOCATION: ................................ ADJACENT TO BIG SPRING P

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

(211) PROJECT NO(S): ................ 6640-1240 (11) MILE POINT: ............................. 0.02 (KM PT 0.03)

(212) DRAWING NUMBERS: ....... 41072 (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:

7 - WOOD or TIMBER

02 - STRINGER/MULTI-BEAM or GIRDER

20.0 FT (6.1 M)

120.0 FT (36.6 M)

4 - PILE BENT

4 - PILE BENT

4 - PILE BENT

4 - PILE BENT

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: .. 6 - BITUMINOUS

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

C) TYPE PROTECTION: .............. 0 - NONE

NO(218) IS SALT USED?:

LOAD RATING AND POSTING

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

(66) INVENTORY RATING: ...... 27.0 TONS (24.0 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 36.0 TONS (33.0 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 5/16 (91) FREQ. OF INSP: 24 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. 6640 001P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(51) CURB TO CURB WIDTH: ........... 26.0 FT (7.9 M) (16) LATITUDE:

(17) LONGITUDE:

(19) DETOUR LENGTH:

(28A) LANES ON STRUCT:

(28B) LANES UNDER STRUCT: ...

(42A) SERVICE ON:

(42B) SERVICE UNDER:

(29) AVG. DAILY TRAFFIC:

(30) YEAR OF ADT:

(114) FUTURE ADT:

(115) YEAR OF FUTURE ADT:

(101) PARALLEL STRUCTURE: ...

(38) NAVIGATION CONTROL?: ...

(39) VERTICAL CLEARANCE:

(40) HORIZ. CLEARANCE:

(111) ABUT. OR PIER PROT:

LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 0.0 FT (0.0 M)

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

36°57'03.20"

90°59'30.00"

35 MI (56 KM)

5 - HIGHWAY-PEDESTRIAN

5 - WATERWAY

N - NONE

0.0 FT (0.0 M)

0.0 FT (0.0 M)

(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:

33.0 FT (10.1 M)

30.0 FT (9.1 M)

12.0 FT (3.7 M)

0.0 FT (0.0 M)

0.0 FT (0.0 M)

0 - NO MEDIAN

0 °

NO

26.0 FT (7.9 M)

6.0 FT (1.8 M)

0.0 FT (0.0 M)

1 - FULL HEIGHT (NO PARAPE

7 - TIMBER

1 - CONTINUOUS RAIL

3.08 FT (0.94 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: ... 0NNN

(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

8 - Stable; scour above top of fo

1 - MAINTENANCE

B - MAJOR

$0

$0

$0

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1990-Rehab of N. Abutment & app. 2003-7 post section of W. railing repl. 2010- Add. supports installed below sidewalk. Sidewalk and W. railing repl. & pile moist. readings taken.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

APPENDIX STRUCTURE NO. 6640 001P

PHOTOGRAPHS STRUCTURE NO. 6640 001P

FLOW

PHOTO #1 - LOOKING SOUTH

PHOTO #2 - EAST (DOWNSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW LOOKING SOUTH; NOTE

EXTENSIVE CRACKING OF ASPHALT

PHOTO #4 - CLOSE UP OF WEARING SURFACE DETERIORATION,

NORTHBOUND LANE IN SPAN #5 SHOWN

PHOTO #5 - GENERAL VIEW OF SIDEWALK AND RAILING ON WEST

SIDE; NOTE TYPICAL GRAVEL AND VEGETATION GROWTH ALONG

CURBLINES

PHOTO #6 - TYPICAL CHECKING OF TIMBER RAILING, WEST RAILING

SHOWN

PHOTO #7 - TYPICAL CHECKING AND DECAY OF TIMBER CURB ALONG

EAST SIDE

PHOTO #8 - TYPICAL DECAY OF EAST RAILING POSTS, POST #8 FROM

NORTH END SHOWN

PHOTO #9 - ADVANCED DECAY IN POST #11 FROM NORTH END OF

EAST RAIL; ALSO NOTE FLOOD GAGE ATTACHED TO DOWNSTREAM

SIDE OF BENT #3

PHOTO #10 - TYPICAL DECAY AT BOTTOM OF EAST RAILING POSTS,

POST #2 FROM SOUTH END SHOWN; NOTE ALSO LOOSE AND ROTATED

TIMBER BRACKET

PHOTO #11 - SINKHOLE AT WEST SHOULDER OF SOUTH APPROACH

FILLED WITH GRAVEL AND BARRICADED OFF

PHOTO #12 - GENERAL UNDERSIDE VIEW LOOKING NORTH

STRUCTURE NO. 6640 001PPHOTOGRAPHS

PHOTO #13 - CLOSE UP OF DECK UNDERSIDE IN SPAN #6; NOTE AREAS

OF DECAY OF DECK PLANKS AND DEBRIS TRAPPED AT UTILITY

CONDUITS

PHOTO #14 - TYPICAL DECAY OF DECK PLANK EDGES WITH

VEGETATION GROWTH; EAST SIDE OF SPAN #1 SHOWN

PHOTO #15 - GENERAL UNDERSIDE VIEW OF SIDEWALK AT WEST SIDE

LOOKING NORTH, SPAN #1 BELOW SIDEWALK SHOWN; NOTE TYPICAL

DECAY OF DECK PLANK EDGES

PHOTO #16 - TYPICAL SPOT DECAY OF GLULAM TIMBER BEAMS, EAST

SIDE OF BEAM #2 AT NORTH ABUTMENT SHOWN AND AT NORTH

ABUTMENT BACKWALL

PHOTO #17 - GENERAL VIEW OF SOUTH ABUTMENT; NOTE DISLODGED

TIMBER PLANK AND LOSS OF FILL FROM UNDER BULKHEAD

PHOTO #18 - CLOSE UP VIEW OF EROSION AND UNDERMINING AT

SOUTH ABUTMENT BULKHEAD NEAR EAST END

PHOTO #19 - TYPICAL DECAY OF TIMBER PILES OUTER LAYERS NEAR

AND BELOW GROUNDLINE AND WATERLINE, PILE #2 FROM EAST END

OF SOUTH ABUTMENT SHOWN

PHOTO #20 - GENERAL VIEW OF NORTH ABUTMENT; NOTE LOSS OF

BACKFILL MATERIAL FROM UNDER BULKHEAD

PHOTO #21 - TYPICAL SPLITS IN BULKHEAD TIMBERS, NORTH

ABUTMENT BELOW BAY #2 SHOWN

PHOTO #22 - DECAY AT EAST END OF TIMBER CAP AT NORTH

ABUTMENT

PHOTO #23 - UP TO 2' DEEP UNDERMINING OF NORTH ABUTMENT

BULKHEAD AND EROSION NEAR PILE #2 FROM WEST END; NOTE ALSO

EVIDENCE OF WATER LEAKAGE

PHOTO #24 - TYPICAL DECAY OF LATERAL BRACING OF PILE BENTS,

PILE BENT #2 AT DOWNSTREAM END SHOWN

PHOTO #25 - ADVANCED DECAY OF TIMBER PILE AT NORTHEAST

WINGWALL; NOTE ALSO TYPICAL VEGETATION GROWTH ON

WINGWALLS

PHOTO #26 - LOOKING UPSTREAM FROM BRIDGE

PHOTO #27 - LOOKING DOWNSTREAM FROM BRIDGE