3100-005P1550_Redacted.pdf

BRIDGE INSPECTION REPORT

DARGAN BRIDGE

DARGAN BEND ACCESS ROAD OVER C&O CANAL

C&O CANAL NATIONAL HISTORICAL PARK

LOOKING NORTH

STRUCTURE NO. 3100-005P

INSPECTION TYPE: ROUTINE

INSPECTION DATE: 10/26/2021

WEST (UPSTREAM) SIDE

Report prepared by:

Federal Highway Administration Federal Lands Bridge Office Bridge Inspection and Management Program 21400 Ridgetop Circle Sterling, Virginia 20166 https://bridge.flhd.fhwa.dot.gov https://bridge.flhd.fhwa.dot.gov

STRUCTURE SUMMARY STRUCTURE NO. 3100-005P

DARGAN BRIDGE INSPECTION DATE: 10/26/2021

BRIDGE IDENTIFICATION AND DESCRIPTION

MAIN SPAN MATERIAL:

MAIN SPAN TYPE:

# OF BEAMS, MAIN SPAN: .

DECK TYPE:

WEARING SURFACE:

ABUT. FOUNDATIONS:

PIER FOUDNATION(S):

ABUTMENT / PIER MAT'L: ..

PROJ./PLAN REF. NO:

NPS ROAD CLASS:

STRUCTURE HISTORY:

3 - STEEL NO. OF MAIN SPANS:

02 - STRINGER/MULTI-BEAM OR NO. OF APPR. SPANS:

4 STRUCT. TOTAL LENGTH: . 42.0 FT (12.8 M)

8 - WOOD OR TIMBER MAX. SPAN LENGTH: ......... 40.3 FT (12.3 M)

0 - NONE DECK WIDTH: ..................... 12.1 FT (3.7 M)

CURB TO CURB WIDTH: .... 10.1 FT (3.1 M)

6 - N/A YEAR BUILT:

1 - CONCRETE YEAR RECONSTRUCTED: . 1985

000000000000 SKEW ANGLE: .................... 0 °

2 - CONNECTOR ROAD FRACTURE CRITICAL: ....... N

1985 - MAJOR RECNSTRCTN/SUPRSTRCTR. 1992-NEW TMBR PLNKS. 1994-STRCTR

PAINTED. 2003-STRCTR PAINTED. 2006-DCK AND CRBS REPLACED, SUPRSTRCTR

PAINTED.

LOCATION

C&O CANAL NATIONAL HISTORICAL PARK MILE POINT: .. 64.90 (KM PT 19.78)

STATE: .............................. 243 - MARYLAND LOCATION: .... Harpers Ferry Road to Back road. 0.8 miles to parking area.FACILITY CARRIED: ......... DARGAN BEND ACCESS ROAD

FEATURE INTERSECTED: C&O CANAL

INSPECTION TEAM: N. Hughes, R. Silvestry

CONDITION ASSESSMENT:

Reinaldo Silvestry

REPORT REVIEW:

Marcus Miller

REPORT APPROVAL: Date: 03/07/2022

Jorgomai Ceesay

STRUCTURE EVALUATION SUMMARY

This steel multi-beam bridge is in poor to fair condition overall. Main problem at this time is the ongoing deterioration of the structural steel, including moderate to severe rusting and loss of section from the ends of beams, as well as isolated areas of peeling of paint with spot corrosion throughout the webs and flanges. In addition, bearing anchor bolts exhibit moderate rusting, section loss and some are sheared off.

Other problems include settlement (2"-4") of the pavement at both approaches; a lack of object markers at the wingwall ends and at the south approach to the bridge, resulting in collision damage to the roadway face of the wingwalls; and deterioration of the timber curb at several locations.

Corrective action should be taken as outlined in this report to help prevent the possible development of more serious or costly problems in the future.

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 3100-005P

DARGAN BRIDGE INSPECTION DATE : 10/26/2021

PRIORITY OF IMPROVEMENT226

A (Critical) - Structure is closed, in immediate damage of collapse, or presents a critical safety danger.

B (Major) - Structure is seriously deficient or presents a safety hazard, but can remain open 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. Preventive maintenance may be required.

E (Special) - Structure is under construction or reconstruction.

C

Item No.

Maintenance Recommendations

(GENERALLY NOT FLHP ELIGIBLE)

QTY. UNIT UNIT

COST

PRELIM.

COST

ESTIMATE

58.7

PERIODICALLY REMOVE DEBRIS FROM CURBLINES AND

APPROACHES. 1 LS

222.7

INSTALL OBJECT MARKERS AT ALL WINGWALL ENDS.

INSTALL REBOUNDABLE DELINEATOR POSTS AT SOUTH

APPROACH WINGWALL CORNERS TO BRIDGE.

1 LS

PRELIM. MAINTENANCE TOTAL :

Item No.

REHABILITATION/RECONSTRUCTION

(TYPICALLY NEEDED WITHIN 5 YEARS)

QTY. UNIT

UNIT

COST

PRELIM. COST ESTIMATES

REHAB RECONSTR

59.1,59.2, 59.2

REPLACE STRUCTURE.

1 LS

PRELIM. REHABILITATION/RECONSTRUCTION TOTAL :

COST ESTIMATE SUMMARY

PRELIM. MAINTENANCE TOTAL :

PRELIM. RECONSTRUCTION TOTAL : .. 0

TOTAL ITEMIZED COSTS: 0

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 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. 3100-005P

DARGAN BRIDGE INSPECTION DATE: 10/25/2021

58. DECK

1. DECK SLAB

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:

59. SUPERSTRUCTURE

1. BEARING DEVICES

2. GIRDERS OR BEAMS

3. ARCH(ES) OR SLAB(S)

4. FLOOR BEAMS AND STRINGERS

5. TRUSSES

6. DIAPHRAGMS AND BRACING

7. PAINT

8. FASCIA(E)

9. DEFLECTION AND/OR VIBRATION

10.ALIGNMENT

11.OTHER

60. SUBSTRUCTURE

61. CHANNEL

1. ALIGNMENT

2. EROSION AND/OR SCOUR

3. CHANNEL PROTECTION

4. WATERWAY OBSTRUCTIONS

5. OTHER

6. ADEQUACY OF OPENING

7. NORMAL VELOCITY

8. AVERAGE CLEAR OPENING

9. STREAMBED COMPOSITION:

222. APPROACHES

1. APPROACH SLABS

2. RELIEF JOINTS

3. APPROACH GUARDRAIL

4. SURFACING

5. EROSION

6. SETTLEMENT

7. SIGNS

8. ALIGNMENT

9. OTHER

223. RETAINING WALL

1. WALL

2. WEEP HOLES

3. FOUNDATION

4. EROSION AND/OR SCOUR

5. SETTLEMENT OR DEFLECTION

6. OTHER

F

F

F

N

G

G

N

P

P

N

N

N

G

F

N

G

G

N

G

G

N

G

N

1- SUFF

5 - DRY

N

N

N

G

G

F

G

G

N

2. EXPANSION JOINTS N

3. WEARING SURFACE N

N 4 FT

TREES

P

CONDITION RATING CODE EQUIVALENTS FOR SUB-ELEMENTS

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

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

NOT APPLICABLEN

EXCELLENT CONDITION9

VERY GOOD CONDITION - no problems noted.8

GOOD CONDITION - some minor problems.7

SATISFACTORY CONDITION - structural elements show some minor deterioration.6

FA R 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.4

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.

“ MM NENT” FA LURE CONDITION - major deterioration or section loss present in critical structural components or obvious vertical or horizontal movement affecting structure stability.

Structure is closed to

FA LED CONDITION - out of service; beyond corrective action. 0

SILT

ABUTMENTS

1. BREASTWALLS OR COLUMNS F

2. PILE BENTS N

3. CAPS AND/OR BEARING SEATS G

4. BACKWALLS AND/OR BULKHEADS G

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

36. TRAFFIC AND SAFETY FEATURES

A. BRIDGE RAILINGS:

B. TRANSITIONS:

C. APPROACH GUARDRAILS:

D. APPROACH GUARDRAIL ENDS:

N

N

N

N

PIER(S) TRAFFIC SAFETY RATING CODES

13. WALLS AND/OR COLUMNS N

N

N

N

N

N

N

0 - Does not meet standards or a safety features is 14.PILE BENTS required and none is provided.

15.CAPS AND/OR BEARING SEATS

1 - Meets currently acceptable standards.

16.FOUNDATIONS

17.EROSION AND/OR SCOUR N - Not applicable or a safety features is not required.

18.SETTLEMENT OR DEFLECTION

19.OTHER

FIELD INSPECTION REPORT STRUCTURE NO. 3100-005P

ITEM REFERENCE AND REMARKS

58.1

58.4

NAIL-LAMINATED DECK. MINOR ABRASION OF DECK SURFACE AT ISOLATED LOCATIONS WITH LEAVES AND GRAVEL

ACCUMULATION THROUGHOUT.

DECK SURFACE IS APPROXIMATELY 1" HIGHER THAN TOP OF BACKWALL AT SOUTH ABUTMENT; APPROXIMATELY 1/2” HIGHER

AT NORTH ABUTMENT. ROUGH TRANSITION TO BRIDGE FROM APPROACHES. SEE ALSO 222.6.

58.5 MINOR CHECKING THROUGHOUT, MODERATE DECAY AT NORTHWEST END OF CURB. MINOR COLLISION DAMAGE TO CURBS

AND MINOR TO MODERATE DECAY OF EAST CURB AT ENDS.

58.7 MINOR DEBRIS ACCUMULATION ALONG CURBLINES ON STRUCTURE AND APPROACHES. MINOR ACCUMULATION OF SOIL AND

GRAVEL BETWEEN DECK PLANKS AT ISOLATED LOCATIONS.

59.1 SEVERE RUSTING WITH SECTION LOSS (UP TO 25%) TO ANCHOR BOLTS AND (UP TO 100%) TO NUTS. SEVERAL ANCHOR BOLTS ARE BENT. ANCHOR BOLT SHEARED OFF AT WEST SIDE OF BEAM #3 AT SOUTH ABUTMENT. ELASTOMERIC BEARING PADS

OVERHANGING BEARING SEATS (UP TO 1-1/2").

59.2

59.6

59.7

MODERATE TO SEVERE RUSTING WITH RUST SCALE AND SECTION LOSS TO ENDS OF BEAMS. BEAM #2 HAS 100% SECTION LOSS TO BOTTOM 3” OF WEB FOR 12” AT SOUTH END; HEAVY PITTING WITH MINOR SECTION LOSS (UP TO 1/16") TO BOTTOM 1- 1/2" OF WEB FOR 6" AT NORTH END. BEAM #3 HAS 100% LOSS OF SECTION TO BOTTOM 3" OF WEB FOR 12" AT SOUTH END.

MODERATE LAMINAR SECTION LOSS ALONG ENTIRE LENGTH OF BEAMS TOP FLANGE.

ISOLATED AREAS OF PAINT FAILURE WITH SPOT RUSTING THROUGHOUT WEBS AND FLANGES; MINOR PITTING PREDATING

PAINT AT ENDS OF BEAMS.

EXTRA BOLT HOLES PUNCHED IN FLANGES OF SOME BEAMS.

60.1 FORM TIES EXPOSED ON ABUTMENT BREASTWALLS.

MINOR VERTICAL AND MAP CRACKING WITH MOISTURE STAINS ON SOUTH ABUTMENT BREASTWALL. APPROXIMATELY 24" DIAMETER AREA OF MODERATE SCALING (UP TO 3/4" DEEP) ON SOUTH ABUTMENT BREASTWALL; SEVERAL AREAS OF MINOR

HONEYCOMBING.

MINOR VERTICAL AND HORIZONTAL CRACKING OF NORTH ABUTMENT BREASTWALL.

60.4

60.6

FORM TIES EXPOSED AT WINGWALLS AND BACKWALLS.

MINOR COLLISION DAMAGE TO ROADWAY FACE OF ALL WINGWALLS. MINOR TO MODERATE SPALLING OF TOP OF BACKWALLS

DUE TO WHEEL ACTION.

60.7 TWO WEEP HOLES PARTIALLY BURIED AT NORTH ABUTMENT.

61.2

61.4

CHANNEL IS DRY AND VEGETATED.

SEE BRIDGE FILE FOR SCOUR EVALUATION.

222.4 MINOR TRANSVERSE CRACKING OF SOUTH APPROACH PAVEMENT; MINOR DETERIORATION OF PREVIOUSLY PATCHED AREAS.

222.6 MODERATE SETTLEMENT (UP TO 2-1/2" AT NORTH AND 4" AT SOUTH) OF BOTH APPROACHES HAS BEEN REPAIRED WITH

STABILIZED SOIL WEDGES.

222.7 "WEIGHT LIMIT 15 TONS" SIGN AT NORTH APPROACH. NO OBJECT MARKERS AT WINGWALLS.

222.9 FALLEN TREE RESTING AGAINST SOUTHWEST AND NORTHWEST WINGWALL.

STRUCTURE LOAD RATING STRUCTURE NO. 3100-005P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 13 12 22 20

HS 18 16 31 28

TYPE 3 16 15 27 24

TYPE 3S2 25 23 43 39

TYPE 3-3 32 29 54 49

DESIGN LOADING: 0 - UNKNOWN

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: 02/18/2021

LOAD RATING CONTROLLED BY: BEAM #4 MOMENT CAPACITY

REMARKS: POSTING NOT REQUIRED, HOWEVER SU4, SU5, SU6, SU7, EV2, AND EV3 HAVE OPERATING VALUES BELOW 1.0.

SEE BRIDGE FILE FOR LOAD RATING CALCULATIONS.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 3100-005P

STRUCTURE IDENTIFICATION

(201) PARK: C&O CANAL NATIONAL HISTORICAL PARK

(202) STRUCTURE NAME:..............DARGAN BRIDGE

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

(204) STRUCTURE NUMBER:.........3100-005 P

2 - NATIONAL CAPITAL(205) NPS REGION:

(206) ROUTE CODE NUMBER:

(207) ROAD SECTION NO:

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

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

(210) OPERATING UNIT:.................PARK

(211) PROJECT NO(S):

(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) HISTORIC DESIGNATION:

243 - MARYLAND

24043 WASHINGTON

00000

1 6 4 00219 0

C&O CANAL

DARGAN BEND ACCESS ROAD

3100005P0000000

Harpers Ferry Road to Back road. 0 8 miles to parking area.

99.99 FT ( 99.99 M)

64.90 (KM PT: 19.78)

3 - ON FREE ROAD

5 - NOT ELIGIBLE

STRUCTURE DESCRIPTION, FOUNDATION, AND DECK TYPE

(43A) MAIN STR. MATERIAL:..........3 - STEEL (44A) APPR. STR. MATERIAL:............ 0 - Other

(43B) MAIN STR. TYPE:.................. 02 - STRINGER/MULTI-BEAM OR (44B) APPR. STR. TYPE:.................... 00 - OTHER

GIRDER

(45) NO. OF MAIN SPANS:..............001 (46) NO OF APPROACH SPANS:

(48) MAX. SPAN LENGTH:..............40.3 FT ( 12.3 M)

(49) STRUCTURE LENGTH:........... 42.0 FT ( 12.8 M) (108) WEAR SURFACE/PROTECT SYSTEM:

(216A) ABUTMENT #1 FDN:........... A) TYPE WEARING SURFACE:.. 0 - NONE

(216B) ABUTMENT #2 FDN:........... 0 - UNKNOWN B) TYPE MEMBRANE:................. 0 - NONE

(217A) PREDOM. PIER FDN:.......... 6 - N/A C) TYPE PROTECTION:.............. 0 - NONE

(217B) SECOND. PIER FDN:.......... 6 - N/A (218) IS SALT USED?.......................... NO

(107) DECK TYPE:.......................... 8 - WOOD OR TIMBER

LOAD RATING AND POSTING

(31) DESIGN LOAD:.........................0 - UNKNOWN (41) LOAD RESTRICTION:.................. P - POSTED FOR LOAD

(66) INVENTORY RATING:..............20.7 METRIC TONS) (70) BRIDGE POSTING:...................... 5 - EQUAL TO OR ABOVE LEGALTONS ( 18.8

LOADS

(64) OPERATING RATING:..............28.2 TONS ( 25.6 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 10/26/2021 (91) FREQ. OF INSP: 24 MONTHS (92 / 93) CRITICAL FEATURE INSPECTION (CFI):

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

(220) SPECIAL STUDY TYPE: 0 - NONE INSP. EVERY MONTHS - LAST INSP:

(221) SPECIAL STUDY DATE: (B) UNDERWATER:..................... N

INSP. EVERY MONTHS - LAST INSP:

(C) SPECIAL INSPECTION:........ N

INSP. EVERY MONTHS - LAST INSP:

https://RATING:

https://RATING:

https://LENGTH:

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 3100-005P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE:................................ 39° 21'50 30" (51) CURB TO CURB WIDTH:............ 10.1 FT ( 3.1 M)

(17) LONGITUDE:............................ 77°44 '24 50" (52) DECK WIDTH:.......................... 12.1 FT ( 3.7 M)

(19) DETOUR LENGTH:.................. 0 MI ( 0 KM) (32) APPR. ROADWAY WIDTH:...... 10.0 FT ( 3 M)

(28A) LANES ON STRUCT:.............01 (213) APPR. PAVEMENT WIDTH:... 10.0 FT ( 3 M)

(28B) LANES UNDER STRUCT:......00 LEFT SHOULDER:............... 0 0 FT ( 0 M)

(42A) SERVICE ON:.........................1 - HIGHWAY RIGHT SHOULDER:.......... 0 0 FT ( 0 M)

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

(29) AVG DAILY TRAFFIC:..............159 (34) SKEW ANGLE:......................... 0 °

(30) YEAR OF ADT:......................... 2007 (35) STRUCTURE FLARED:............ 0 - NO FLARE

(114) FUTURE ADT:.........................175 (47) TOTAL HORIZ. CLEARANCE:.. 10.1 FT ( 3.1 M)

(115) YEAR OF FUTURE ADT:........2027 (50) SIDEWALKS

(101) PARALLEL STRUCTURE:......N - NO PARALLEL STRUCTURE LEFT:.................................... 0 0 FT ( 0 M)

(38) NAVIGATION CONTROL:.........0 - NO NAVIGATION CONTROL ON RIGHT:.................................. 0 0 FT ( 0 M)

WATERWAY (BRIDGE PERMIT NOT

REQUIRED)

(39) VERTICAL CLEARANCE:.........0 FT ( 0 M) (214) BRIDGE RAIL TYPE

4 - CURB-TYPE WHEEL GUARD(40) HORIZ. CLEARANCE:..............0 FT ( 0 M) RAIL CONFIGURATION:

(111) ABUT OR PIER PROT:........... MATERIAL:........................... 7 - T MBER

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

(55) RIGHT:...............................00 FT ( 0 M) (215) BRIDGE RAIL HEIGHT:.......... 1 00 FT ( 0.3 M)

(56) LEFT:................................ 0 FT ( 0 M) (53) MIN. VRT. CLR. OVER DECK: 99.99 FT ( 99.99 M)

(54) MIN. VRT. UNDRCLRANCE:... .00 FT ( 0 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: N N N N

(75A) TYPE OF WORK:................... 35 - REHABILITATION - DETERIORATION

(75B) WORK DONE BY:.................. 2 - WORK TO BE DONE BY OWNER'S

FORCES

(76) IMPROVEMENT LENGTH:....... FT ( 0 M)

(67) STRUCTURAL EVALUATION:

(68) DECK GEOMETRY:

(69) UNDERCLEARANCES:................ N

(71) WATERWAY ADEQUACY:

(72) APPROACH ALIGNMENT:

(113) SCOUR CRITICAL:.................... 5 - SCOUR WITHIN LIMITS OF

FOOTING OR PILES

(225) PURPOSE OF IMPROVEMENT: 2 - REHAB/RECONSTRUCTION

(226) PRIORITY OF IMPROVEMENT: C - MODERATE

(227) MAINTENANCE

(229) CONSTRUCTION

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

1985 - MAJOR RECNSTRCTN/SUPRSTRCTR. 1992-NEW TMBR PLNKS. 1994-STRCTR PAINTED. 2003-STRCTR PAINTED. 2006-DCK AND CRBS REPLACED, SUPRSTRCTR PAINTED.

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIGURATION INFORMATION:

Inspector: Reinaldo Silvestry Structure Number: 3100005P0000000

Inspection Date: 10/26/2021 Facility Carried: DARGAN BEND ACCES

Bridge Inspection Report

Pictures

PHOTO 3

Description LOOKING SOUTH TOWARDS POTOMAC RIVER

PHOTO 4

Description EAST (DOWNSTREAM) SIDE

Bridge Inspection Report

Pictures

PHOTO 5

Description GENERAL TOPSIDE VIEW LOOKING NORTH

PHOTO 6

Description EDGE SPALLING, UP TO 3', ALONG TOP OF NORTH BACKWALL

Bridge Inspection Report

Pictures

PHOTO 7

Description COLLISION DAMAGE AND DECAY AT NORTH END OF EAST CURB

PHOTO 8

Description TYPICAL CONDITION OF TIMBER DECK; NOTE CHECKING, ABRASION, AND GRAVEL

ACCUMULATION

Bridge Inspection Report

Pictures

PHOTO 9

Description WEST CURB; NOTE DECAYED TIMBER CURB AT NORTH END

PHOTO 10

Description SOUTH END OF EAST CURB; NOTE DECAYING, 3'L, OF TIMBER CURB

Bridge Inspection Report

Pictures

PHOTO 11

Description EAST CURB; NOTE COLLISION DAMAGE NEAR NORTH END

PHOTO 12

Description NORTHEAST WINGWALL

Bridge Inspection Report

Pictures

PHOTO 13

Description NORTHWEST WINGWALL; NOTE FALLEN TREE ADJACENT TO WINGWALL

PHOTO 14

Description NORTH ABUTMENT; NOTE EAST WEEP HOLE IS BURIED

Bridge Inspection Report

Pictures

PHOTO 15

Description VERTICAL CRACK WITH EFFLORESCENCE AT EAST END OF NORTH ABUTMENT; NOTE

ALSO EAST WEEP HOLE IS PARTIALLY BURIED

PHOTO 16

Description BEARING #2 OVER NORTH ABUTMENT; NOTE BEARING PAD OVERHANGING ABUTMENT

BY 1", AND FULL SECTION LOSS OF ANCHOR BOLT NUTS

Bridge Inspection Report

Pictures

PHOTO 17

Description BEAM #2 OVER NORTH ABUTMENT; NOTE SECTION LOSS AT BOTTOM OF WEB

EXTENDING 6" INTO BEAM AND 1" HIGH

PHOTO 18

Description GENERAL UNDERSIDE VIEW LOOKING NORTH

Bridge Inspection Report

Pictures

PHOTO 19

Description TYPICAL DETERIORATION OF TOP FLANGE WITH PAINT FAILURE, AND LAMINAR RUST;

WEST EXTERIOR BEAM SHOWN

PHOTO 20

Description BEAM #4 OVER SOUTH ABUTMENT; NOTE RUSTING AND SECTION LOSS TO FLANGES

AND ANCHOR BOLTS

Bridge Inspection Report

Pictures

PHOTO 21

Description BEAM #2 OVER SOUTH ABUTMENT; NOTE SECTION LOSS TO BEAM WEB, 1'L X 2"H

PHOTO 22

Description BEAM #3 OVER SOUTH ABUTMENT; NOTE SECTION LOSS AT END OF BEAM WEB (1'L X 2"H)

Bridge Inspection Report

Pictures

PHOTO 23

Description 2.5' BY 2' AREA OF SPALLING AND SCALING ON SOUTH ABUTMENT

PHOTO 24

Description TRANSVERSE AND VERTICAL CRACKING WITH EFFLORESCENCE ON SOUTH ABUTMENT

BETWEEN BEAMS #3 AND #4

Bridge Inspection Report

Pictures

PHOTO 25

Description SOUTH ABUTMENT

PHOTO 26

Description SOUTHEAST WINGWALL

Bridge Inspection Report

Pictures

PHOTO 27

Description SOUTHWEST WINGWALL; NOTE FALLEN TREE AND VEGETATION GROWTH ADJACENT TO

WINGWALL

PHOTO 28

Description LOOKING UPSTREAM

Bridge Inspection Report

Pictures

PHOTO 29

Description LOOKING DOWNSTREAM

PHOTO 30

Description WEIGHT LIMIT SIGN AT NORTHWEST CORNER OF STRUCTURE

Bridge Inspection Report

Pictures

PHOTO 31

Description FALLEN TREE RESTING AGAINST SOUTHWEST WINGWALL