Bridge_Report_8140-001P20250_(1).pdf

BRIDGE INSPECTION REPORT

EASKOOT CREEK BRIDGE

STINSON BEACH ROAD OVER EASKOOT CREEK

GOLDEN GATE NATIONAL RECREATION AREA

LN

STRUCTURE NO. 8140-001P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 8/18/14

Report prepared by: EU

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. 8140-001P

EASKOOT CREEK BRIDGE INSPECTION DATE: 8/18/14

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: .. 33.3 FT (10.1 M)

DECK TYPE: ......................... CONCRETE CAST-IN-PLACE MAX. SPAN LENGTH: .......... 28.0 FT (8.5 M)

WEARING SURFACE: .......... BITUMINOUS DECK W IDTH: ...................... 28.5 FT (8.7 M)

ABUT. FOUNDATIONS: ........ PILE BENT CURB TO CURB W IDTH: ..... 28.0 FT (8.5 M)

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

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

PROJ./PLAN REF. NO: ......... UNKNOWN / P6071 SKEW ANGLE: ..................... 18 °

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

STRUCTURE HISTORY: ...... 2014 - WEARING SURFACE REPAVED AND RESTRIPED.

LOCATION

GOLDEN GATE NATIONAL RECREATION AREA MILE POINT: ..................... 0.02 (KM PT 0.03)

STATE: ................................. CALIFORNIA LOCATION: West from US Route 101 on CA Route 1.

12.6 miles to Stinson Beach. Stinson Beach EntranceFACILITY CARRIED: ............ STINSON BEACH ROAD

Road on left at MP 12.6.

FEATURE INTERSECTED: .. EASKOOT CREEK

STRUCTURE EVALUATION SUMMARY

This concrete slab bridge is in fair condition overall. The main structural problem at this time is deterioration of the exposed portions of the timber piles at both abutments. On a related note, the gabion basket scour protection under the bridge ends abruptly, allowing channel flow behind the baskets and creating potential for further washout of the embankment.

Other problems include missing rail connections, moderate debris and tree limb accumulation in both channels, settlement at both approaches with a slight ramping effect at the south approach, and a lack of reflective object markers at the bridge corners.

Since the previous inspection, the asphalt wearing surface has been repaved and restriped.

Corrective measures 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.K. JOHNSON, C.C. THRIFT (CLARK NEXSEN)

CONDITION ASSESSMENT:

D. KEITH JOHNSON, P.E., FIELD TEAM LEADER

REPORT REVIEW :

GARY J. GOODLIN, FIELD TEAM LEADER 703-404-6253

REPORT APPROVAL: DATE: 12/11/14

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 8140-001P

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.

60.9,11, 61.3

PLACE ADDITIONAL GABION BASKETS OR RIPRAP AT UPSTREAM END OF NORTH

ABUTMENT SLOPE PROTECTION TO PROVIDE SMOOTH TRANSITION TO CHANNEL

BANKS.

10 CY $1,000 $10,000

61.4 REMOVE DEBRIS AND TREE LIMBS FROM CHANNELS. 1 LS $3,000 $3,000

222.7 INSTALL TYPE 3 OBJECT MARKERS AT BRIDGE CORNERS. 4 EA $500 $2,000

58.6 REPLACE MISSING CONNECTION HARDWARE ON RAILINGS. 1 LS $1,000 $1,000

PRELIM. MAINTENANCE TOTAL : $16,000

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:

$0 $0 $16,000

$16,000

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.)

$16,000

REMARKS: Cost estimates assume that recommended actions will be combined with similar work being performed on other structures.

FIELD INSPECTION REPORT STRUCTURE NO. 8140-001P

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

N NOT APPLICABLE

9 EXCELLENT CONDITION

8 VERY GOOD CONDITION - no problems noted.

7 GOOD CONDITION - some minor problems.

6 SATISFACTORY CONDITION - structural elements show some minor deterioration.

5 FAIR CONDITION - all primary structural elements are sound but may have minor section loss, cracking, spalling, or scour.

4 POOR CONDITION - advanced section loss, deterioration, spalling, or scour.

3 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.

2 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.

1 “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.

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

1. DECK SLAB

2. EXPANSION JOINTS

3. WEARING SURFACE

4. RIDEABILITY

5. CURBS, SIDEWALKS, AND MEDIAN

6. PARAPETS AND/OR RAILINGS

7. DRAINS AND DRAINAGE

8. UTILITIES

9. DEFLECTION AND/OR VIBRATION

10. OTHER (STRIPING)

59. SUPERSTRUCTURE 6

1. BEARING DEVICES N

2. GIRDERS OR BEAMS N

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

4. FLOOR BEAMS AND STRINGERS N

5. TRUSSES N

6. DIAPHRAGMS AND BRACING N

7. PAINT N

8. FASCIA(E) N

9. DEFLECTION AND/OR VIBRATION G

10. ALIGNMENT G

11. OTHER N

60. SUBSTRUCTURE 5

ABUTMENTS

1. BREASTWALLS OR COLUMNS

2. PILE BENTS

3. CAPS AND/OR BEARING SEATS

4. BACKWALLS AND/OR BULKHEADS

5. FOUNDATIONS

6. WINGWALLS

7. WEEP HOLES

8. EXPANSION JOINTS

9. EROSION AND/OR SCOUR

10. SETTLEMENT OR DEFLECTION

11. SLOPE PROTECTION

12. OTHER

PIER(S)

13. WALLS AND/OR COLUMNS

14. PILE BENTS

15. CAPS AND/OR BEARING SEATS

16. FOUNDATIONS

17. EROSION AND/OR SCOUR

18. SETTLEMENT OR DEFLECTION

19. OTHER

F N G G N F G N G G

N F G G N G N N F G F N

N N N N N N N

58.1, 59.3

58.3,10

58.6

58.7

60.2

60.3

60.9,11, 61.3

ITEM REFERENCE AND REMARKS

SEVERAL MINOR LONGITUDINAL CRACKS ORIGINATING AT

ABUTMENTS EXTEND ALONG SLAB UNDERSIDE FOR 1/2 TO 3/4 OF

BRIDGE LENGTH. MINOR SPALL ON WEST EDGE OF SLAB NEAR

MIDSPAN. MINOR VERTICAL CRACKING OF SLAB HAUNCHES AT

ABUTMENTS.

ASPHALT WEARING SURFACE HAS BEEN REPAVED AND RESTRIPED

SINCE PREVIOUS INSPECTION. MINOR TRANSVERSE CRACKING OF

WEARING SURFACE AT ENDS.

NO PLATE WASHERS BETWEEN RAIL-TO-POST BOLT HEADS AND

RAILINGS. BOLT ON POST #8, WEST RAIL, IS BENT AND RUSTED.

NUT MISSING FROM LOWER BOLT AT POST #11, WEST RAIL.

MODERATE RUSTING OF RAIL POSTS BELOW GROUNDLINE.

MODERATE COLLISION DAMAGE TO EAST RAIL NEAR NORTH END,

BENT DOWN 3" FOR 5'L.

MINOR TO MODERATE SOIL ACCUMULATION AND VEGETATION

GROWTH ALONG APPROACH CURBLINES.

NORTH ABUTMENT PILES EXPOSED UP TO 19" (SEE 60.9,11). SOME

SPLINTERING OF PILES #1 AND #3. MINOR EXTERIOR DECAY IN

WEST AND SOUTH FACES OF PILE #1. MINOR SPLIT IN PILE #3;

SOUNDING AND 2008 DRILLING INDICATED SOUND INTERIOR.

MINOR SPLIT ON WEST SIDE OF PILE #4. MINOR DECAY IN ONE

LOCATION ON EAST SIDE OF PILE #5.

SOUTH ABUTMENT PILES EXPOSED UP TO 8". MINOR SPLITTING OF

PILE #2; FORM BOARDS VISIBLE BEHIND PILE. MINOR EXTERIOR

DECAY OF PILE #4. UP TO 1" OF EXTERIOR DECAY IN TOP 4" OF PILE

#5. SEE ALSO 61.3.

SEVERAL VERTICAL CRACKS IN CONCRETE PILE CAPS, HAIRLINE

TO 1/32" WIDE, MAINLY OVER PILES AND AT MIDPOINT BETWEEN

PILES.

GABION BASKETS ALONG BOTH ABUTMENTS. BASKETS HAVE

SETTLED UP TO 12", EXPOSING TIMBER PILES BEHIND. MODERATE

VINE GROWTH ON UPSTREAM ENDS OF GABION BASKETS, MINOR

AT DOWNSTREAM ENDS.

FIELD INSPECTION REPORT STRUCTURE NO. 8140-001P

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 PROTECTION 3.

EROSION AND/OR SCOUR 2.

ALIGNMENT 1.

61. CHANNEL 7

G G G F N

MED

SUFF

3 FT.

SILT, GRAVEL

222. APPROACHES 6

OTHER 9.

ALIGNMENT 8.

SIGNS 7.

SETTLEMENT 6.

EROSION 5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS 2.

1. APPROACH SLABS N

N G G G F F G N

223. RETAINING WALL N

OTHER 6.

SETTLEMENT OR DEFLECTION 5.

EROSION AND/OR SCOUR 4.

FOUNDATION 3.

WEEP HOLES 2.

1. WALL

36. TRAFFIC AND SAFETY FEATURES

APPROACH GUARDRAIL ENDS D.

APPROACH GUARDRAILS C.

TRANSITIONS B.

BRIDGE RAILINGSA. 1

61.4 MODERATE ACCUMULATION OF DEBRIS AND TREE LIMBS IN BOTH

CHANNELS.

222.3 MINOR VEHICLE SCRAPES ON SOUTHEAST APPROACH GUARDRAIL.

222.4 3" HIGH SPEED BUMPS AT NORTH APPROACH. MINOR TRANSVERSE

AND LONGITUDINAL CRACKING OF APPROACH PAVEMENT.

222.6 UP TO 1" SETTLEMENT AT APPROACHES; SLIGHT RAMPING EFFECT

AT SOUTH APPROACH.

222.7 NO WEIGHT LIMIT SIGNS OR TYPE 3 REFLECTIVE OBJECT MARKERS

PRESENT. "15 MPH" ON PAVEMENT AT NORTH APPROACH HAS

BEEN REPAINTED SINCE PREVIOUS INSPECTION. TWO YELLOW

REFLECTORS ON ENDS OF EACH APPROACH GUARDRAIL.

"EASKOOT CREEK" SIGNS AT BOTH APPROACHES.

36.D APPROACH RAILINGS ARE NOT TERMINATED 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. 8140-001P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 17 15 29 26

HS 32 29 53 48

TYPE 3 24 22 40 36

TYPE 3S2 38 34 64 58

TYPE 3-3 47 43 79 72

DESIGN LOADING: H10 (M9)

X CAPACITY MEETS OR EXCEEDS DESIGN LOAD

CAPACITY IS LESS THAN DESIGN LOAD

ORIGINAL LOAD RATING CALCULATION APPLICABLE

X ORIGINAL LOAD RATING CALCULATION REVISED

DATE OF LOAD RATING CALCULATION: 5/14

LOAD RATING CONTROLLED BY: SLAB MOMENT CAPACITY

REMARKS:

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 8140-001P

STRUCTURE IDENTIFICATION

(201) PARK: GOLDEN GATE NATIONAL RECREATION AREA

(202) STRUCTURE NAME: .......... EASKOOT CREEK BRIDGE

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

(204) STRUCTURE NUMBER: ..... 8140-001P

(205) NPS REGION: .................... 6 - PACIFIC WEST

(206) ROUTE CODE NUMBER: ... 205

(207) ROAD SECTION NO: .......... 001P

(208) NPS ROAD CLASS: ............ 1 - PRINCIPAL PARK ROAD

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

(210) OPERATING UNIT: ............. FORT MASON

(211) PROJECT NO(S): ................ UNKNOWN

(212) DRAWING NUMBERS: ....... P6071

(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: ..

069 - CALIFORNIA (CA)

041 - MARIN

168002050

EASKOOT CREEK

STINSON BEACH ROAD

8140001P0000000

West from US Route 101 on

99.99 FT (99.99 M)

0.02 (KM PT 0.03)

N/A

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

01 - SLAB

28.0 FT (8.5 M)

33.3 FT (10.1 M)

4 - PILE BENT

4 - PILE BENT

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: ................. 1 - H10 (M9) (41) LOAD RESTRICTION: ......... A - OPEN, NO RESTRICTION

(66) INVENTORY RATING: ...... 32.0 TONS (29.0 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 53.0 TONS (48.1 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 8/14 (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: 5 - SCOUR

(B) UNDERWATER: .............. NO

(221) SPECIAL STUDY DATE: 9/98 INSP. EVERY: MONTHS - LAST INSP. :

(C) SPECIAL INSPECTION: .. NO

INSP. EVERY: MONTHS - LAST INSP. :

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 8140-001P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 37°53'53.70" (51) CURB TO CURB WIDTH: ........... 28.0 FT (8.5 M)

(17) LONGITUDE: ......................... 122°38'29.30" (52) DECK WIDTH: ............................ 28.5 FT (8.7 M)

(19) DETOUR LENGTH: ............... 199 MI (199 KM) (32) APPR. ROADWAY WIDTH: ........ 26.0 FT (7.9 M)

(28A) LANES ON STRUCT: .......... 02 (213) APPR. PAVEMENT WIDTH: ..... 26.0 FT (7.9 M)

(28B) LANES UNDER STRUCT: ... 00 LEFT SHOULDER: .................. 0.0 FT (0.0 M)

(42A) SERVICE ON: ..................... 1 - HIGHWAY RIGHT SHOULDER: ................ 0.0 FT (0.0 M)

(42B) SERVICE UNDER: .............. 5 - WATERWAY (33) BRIDGE MEDIAN: ....................... 0 - NO MEDIAN

(29) AVG. DAILY TRAFFIC: .......... 150 (34) SKEW ANGLE: ............................ 18 °

(30) YEAR OF ADT: ...................... 2008 (35) DECK FLARE?: ........................... NO

(114) FUTURE ADT: ..................... 200 (47) TOTAL HORIZ. CLEARANCE: .... 28.0 FT (8.5 M)

(115) YEAR OF FUTURE ADT: ..... 2028 (50) SIDEWALKS:

(101) PARALLEL STRUCTURE: ... N - NONE LEFT : ...................................... 0.0 FT (0.0 M)

(38) NAVIGATION CONTROL?: ... 0 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: ......... 1 - FULL HEIGHT (NO PARAPE

(111) ABUT. OR PIER PROT: ....... MATERIAL: .............................. 4 - STEEL

DESIGN TYPE: ........................ 1 - CONTINUOUS RAIL

LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 0.0 FT (0.0 M) (215) BRIDGE RAIL HEIGHT: ............ 2.50 FT (0.76 M)

(56) LEFT: ......................... 0.0 FT (0.0 M) (53) MIN. VRT. CLEAR. OVER DECK: 99.99 FT (99.99 M)

(54) MIN. VRT. UNDERCLEARANCE: 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: ... 1110

(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

D - MINOR

$16,000

$0

$0

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

2014 - WEARING SURFACE REPAVED AND RESTRIPED.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

5 timber piles at each abutment, protected by gabion baskets.

http:122�38'29.30 http:37�53'53.70

APPENDIX STRUCTURE NO. 8140-001P

PHOTOGRAPHS STRUCTURE NO. 8140-001P

PHOTO #1 - LOOKING SOUTH TOWARD PARKING AREA

FLOW

PHOTO #2 - WEST (DOWNSTREAM) SIDE

PHOTO #3 - GENERAL TOPSIDE VIEW

LOOKING NORTH

PHOTO #4 - TYPICAL TRANSVERSE CRACKING

OF WEARING SURFACE AT ENDS; NORTH END

SHOWN; ALSO NOTE TYPICAL SETTLEMENT AT

APPROACHES

PHOTO #5 - TYPICAL TRANSVERSE CRACKING

OF WEARING SURFACE AT ENDS; SOUTH END

SHOWN; ALSO NOTE TYPICAL SETTLEMENT AT

APPROACHES

PHOTO #6 - COLLISION DAMAGE TO EAST RAIL

NEAR NORTH END

PHOTO #7 - VEHICLE SCRAPES ON

SOUTHEAST APPROACH GUARDRAIL

PHOTO #8 - BOLT ON POST #8, WEST RAIL, IS

BENT AND RUSTED

PHOTO #9 - LOOKING SOUTH AT ENTRANCE TO STINSON BEACH PARK;

NOTE NO LOAD POSTING SIGNS PRESENT

PHOTO #10 - GENERAL UNDERSIDE VIEW LOOKING NORTH

PHOTO #11 - GENERAL VIEW OF SOUTH ABUTMENT; NOTE GABION

BASKETS

PHOTO #12 - TYPICAL VERTICAL CRACKS IN CONCRETE PILE CAPS,

MAINLY OVER PILES AND AT MIDPOINT BETWEEN PILES; NORTH

ABUTMENT CAP SHOWN

PHOTO #13 - SPLIT ON WEST SIDE OF PILE #4 AT NORTH ABUTMENT

PHOTO #14 - DECAY IN ONE LOCATION ON EAST SIDE OF PILE #5 AT

NORTH ABUTMENT

PHOTO #15 - EXTERIOR DECAY OF PILE #4 AT SOUTH ABUTMENT

PHOTO #16 - LOOKING UPSTREAM THROUGH STRUCTURE; NOTE

ACCUMULATION OF DEBRIS AND TREE LIMBS

PHOTO #17 - LOOKING DOWNSTREAM THROUGH STRUCTURE; NOTE

ACCUMULATION OF DEBRIS AND TREE LIMBS