STR 3100-039P861_Lock 25 Culvert_Redacted.pdf

STRUCTURE SUMMARY STRUCTURE NO. 3100-039P

LOCK 25 CULVERT INSPECTION DATE: 10/4/17

CULVERT IDENTIFICATION AND DESCRIPTION

MAIN SPAN MATERIAL: ........ CONCRETE NO. OF BARRELS:

FOUNDATION: ....................... N/A BARREL LENGTH: ............... 12 FT (4 M)

STRUCT. TOTAL LENGTH: ... 5.3 FT (1.6 M) SKEW ANGLE: ..................... 0 °

MAX. SPAN LENGTH: ............ 5.3 FT (1.6 M) YEAR BUILT:

PROJ./PLAN REF. NO: .......... 00000000000 / NONE YEAR RECONSTRUCTED: .. N/A

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

STRUCTURE HISTORY:

LOCATION

C&O CANAL NATIONAL HISTORICAL PARK MILE POINT: ..................... 30.80 (KM PT 49.57)

STATE: .................................. MARYLAND LOCATION: Lock 25 - Adjacent to Structure No.

3100-001P.FACILITY CARRIED: ............. EDWARDS FERRY ROAD

FEATURE INTERSECTED: ... STREAM AT LOCK 25

STRUCTURE EVALUATION SUMMARY

This single barrel concrete box culvert is in good condition overall. The main problem is loose and displaced stones in the adjacent masonry retaining walls and partial failure of the northeast wall. The condition of the retaining walls does not threaten the integrity of the structure, but they should be repaired to maintain the channel opening.

Additional problems include deterioration of the asphalt pavement along the edges of the roadway over the structure, loose and out of plumb railings, and a large gap between the east railing and edge of the roadway, posing a potential hazard for motorists.

Corrective action should be taken as outlined in this report to prevent the possible development of more serious or costly problems in the future. Consideration should also be given to installing a railing system that meets current safety guidelines.

INSPECTION TEAM: M. BURNETT, T. POWELL (VOLKERT, INC.)

CONDITION ASSESSMENT:

MATT BURNETT, FIELD TEAM LEADER

REPORT REVIEW:

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

REPORT APPROVAL: DATE: 2/28/14

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

RECOMMENDATIONS AND ESTIMATED COSTS STRUCTURE NO. 3100-039P

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.

D226 PRIORITY OF IMPROVEMENT

ITEM

NO.

ROUTINE MAINTENANCE QTY. UNIT COST

UNIT

ESTIMATE

COST

PRELIM.

223.1,5 REPAIR RETAINING WALL MASONRY AS NECESSARY. 3 CY

62.9 SECURE BOTH RAILINGS AND RELOCATE EAST RAILING CLOSER TO EDGE OF

ROADWAY.

22 LF

62.10 REPAIR ASPHALT PAVEMENT ALONG BOTH EDGES OF ROADWAY OVER CULVERT. 35 SF

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 :

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.

Consideration should be given to installing a railing system that meets current safety guidelines.

FIELD INSPECTION REPORT STRUCTURE NO. 3100-039P

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 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 CODE EQUIVALENTS FOR SUB-ELEMENTS

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

STREAM BED COMPOSITION :9.

AVG. 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 G

4 FT.

LOW

SUFF

N

ITEM REFERENCE AND REMARKS

62. CULVERT 7

PARAPETS AND/OR RAILINGS 9.

ADEQUACY OF COVER 8.

SETTLEMENT AND/OR DEFLECTION 7.

EROSION AND/OR SCOUR 6.

DEBRIS AND/OR SILT 5.

WINGWALLS 4.

HEADWALLS 3.

FOOTINGS 2.

BARREL(S)1.

ROADWAY SURFACE 10.

RIDEABILITY 11.

OTHER 12.

G N G G G G G G P F G N

222. APPROACHES 7

OTHER 9.

ALIGNMENT 8.

SIGNS 7.

SETTLEMENT 6.

EROSION 5.

SURFACING 4.

APPROACH GUARDRAIL 3.

RELIEF JOINTS 2.

1. APPROACH SLABS N

N N G G G G G N

223. RETAINING WALL 4

OTHER 6.

SETTLEMENT OR DEFLECTION 5.

EROSION AND/OR SCOUR 4.

FOUNDATION 3.

WEEP HOLES 2.

1. WALL P

N N G P N

36. TRAFFIC AND SAFETY FEATURES

APPROACH GUARDRAILS C.

TRANSITIONS B.

BRIDGE RAILINGSA.

APPROACH GUARDRAIL ENDS D.

N N N

SILT

62.1 MINOR HONEYCOMBING OF BARREL IN SEVERAL LOCATIONS.

62.9 MINOR COLLISION DAMAGE TO TIMBER RAILINGS AT NORTH END.

EAST RAILING HAS BEEN RESET IN PAST, BUT REMAINS OUT OF

PLUMB; LARGE GAP BETWEEN EAST RAILING AND EDGE OF

ROADWAY. WEST RAILING LOOSE AND OUT OF PLUMB.

62.10 18" L X 8" W X 2-1/4" D GOUGE IN ASPHALT PAVEMENT OVER

CULVERT NEAR NORTH END. EAST EDGE OF WEARING SURFACE

OVER CULVERT BROKEN UP 1' W X 3-1/2" D; MINOR CRACKING AND

SETTLEMENT ALONG WEST EDGE.

222.4 MINOR TRANSVERSE CRACKING OF SOUTH APPROACH PAVEMENT.

222.7 "BRIDGE WEIGHT 10 TON" AT NORTH APPROACH; SIGN LEANING

OUT OF POSITION WITH GUNSHOT DAMAGE, BUT LEGIBLE.

223.1,5 STACKED MASONRY RETAINING WALLS ADJACENT TO CULVERT

WINGWALLS. STONES LOOSE OR DISPLACED IN RETAINING WALLS

WITH MINOR VEGETATION GROWTH; PARTIAL FAILURE OF

NORTHEAST RETAINING WALL ALONG LENGTH. WALLS ON WEST

SIDE OF STRUCTURE LEANING BACK AGAINST EMBANKMENT

(AS-BUILT). BULGING OF SOUTHEAST RETAINING WALL.

36.A BRIDGE RAILING SYSTEM DOES NOT MEET CURRENT SAFETY

GUIDELINES.

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. 3 OF 17

STRUCTURE LOAD RATING STRUCTURE NO. 3100-039P

TRUCK TYPE

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

TONS METRIC TONS TONS METRIC TONS

H 15 14 25 23

HS 27 24 45 41

TYPE 3 35 32 59 54

TYPE 3S2 56 50 93 84

TYPE 3-3 60 54 100 91

DESIGN LOADING: UNKNOWN (H15 ASSUMED - SEE REMARKS)

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:

LOAD RATING CONTROLLED BY:

REMARKS: DESIGN LOADING IS UNKNOWN; ASSUMPTION IS BASED ON STRUCTURE TYPE, LOCATION, AGE, AND

CONDITION.

STRUCTURE INVENTORY AND APPRAISAL STRUCTURE NO. 3100-039P

STRUCTURE IDENTIFICATION

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

(202) STRUCTURE NAME: .......... LOCK 25 CULVERT

(203) STRUCTURE KIND: ............ 2 - CULVERT

(204) STRUCTURE NUMBER: ..... 3100-039P

(205) NPS REGION: .................... 2 - NATIONAL CAPITAL

(206) ROUTE CODE NUMBER: ... 0

(207) ROAD SECTION NO: .......... 039P

(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) HISTORICAL DESIGNATION: ..

243 - MARYLAND (MD)

031 - MONTGOMERY

180000000

STREAM AT LOCK 25

EDWARDS FERRY ROAD

3100039P0000000

Lock 25 - Adjacent to Str

99.99 FT (99.99 M)

30.80 (KM PT 49.57)

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

19 - CULVERT

5.3 FT (1.6 M)

5.3 FT (1.6 M)

6 - N/A

6 - N/A

6 - N/A

6 - N/A

N - NOT APPLICABLE

(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: .. N - NOT APPLICABLE

B) TYPE MEMBRANE:

C) TYPE PROTECTION:

(218) IS SALT USED?: ..................... NO

LOAD RATING AND POSTING

(31) DESIGN LOAD: ................. 0 - UNKNOWN (41) LOAD RESTRICTION: ......... A - OPEN, NO RESTRICTION

(66) INVENTORY RATING: ...... 27.0 TONS (24.5 METRIC TONS) (70) BRIDGE POSTING: .............. 5 - NO POSTING REQUIRED

(64) OPERATING RATING: ...... 45.1 TONS (40.9 METRIC TONS)

INSPECTION DATES

(90) INSPECTION DATE: 10/17 (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. 3100-039P

GEOMETRY, TRAFFIC, AND NAVIGATIONAL DATA

(16) LATITUDE: ............................. 39°06'13.60" (51) CURB TO CURB WIDTH: ........... 11.9 FT (3.6 M)

(17) LONGITUDE: ......................... 77°28'20.30" (52) DECK WIDTH: ............................ 0.0 FT (0.0 M)

(19) DETOUR LENGTH: ............... 99 MI (159 KM) (32) APPR. ROADWAY WIDTH: ........ 11.0 FT (3.4 M)

(28A) LANES ON STRUCT: .......... 01 (213) APPR. PAVEMENT WIDTH: ..... 11.0 FT (3.4 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: .......... 50 (34) SKEW ANGLE: ............................ 0 °

(30) YEAR OF ADT: ...................... 2007 (35) DECK FLARE?: ........................... NO

(114) FUTURE ADT: ..................... 2 (47) TOTAL HORIZ. CLEARANCE: .... 11.9 FT (3.6 M)

(115) YEAR OF FUTURE ADT: ..... 2027 (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: .............................. 7 - TIMBER

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

LATERAL UNDERCLEARANCE:

(55) RIGHT: ....................... 0.0 FT (0.0 M) (215) BRIDGE RAIL HEIGHT: ............ 2.33 FT (0.71 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: ................................. N

(59) SUPERSTRUCTURE: ......... N

(60) SUBSTRUCTURE: .............. N

(61) CHANNEL:

(62) CULVERT:

(222) APPROACHES:

(223) RETAINING WALL:

(36) TRAFFIC SAFETY FEAT: ... 0NNN

(75A) TYPE OF WORK: .............. 35 - GENERAL REHAB

(75B) WORK DONE BY: ............. 2 - OWNER

(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

N

5 - Stable; scour within limits of

1 - MAINTENANCE

D - MINOR

ADDITIONAL INFORMATION

(230) STRUCTURE HISTORY:

(231) ADDITIONAL CONSIDERATIONS:

(330) ADDITIONAL CONFIG. INFO.:

APPENDIX STRUCTURE NO. 3100-039P

PHOTOGRAPHS STRUCTURE NO. 3100-039P

PHOTO #1 - LOOKING NORTH TOWARD RIVER ROAD

FLOW

PHOTO #2 - WEST (UPSTREAM) SIDE

PHOTO #3 - GENERAL TOP SIDE VIEW LOOKING SOUTH

PHOTO #4 - GENERAL UNDERSIDE VIEW LOOKING EAST

PHOTO #5 - GOUGE IN ASPHALT PAVEMENT OVER CULVERT NEAR

NORTH END

PHOTO #6 - CRACKING AND SETTLEMENT OF ASPHALT PAVEMENT

OVER CULVERT ALONG WEST SIDE

PHOTO #7 - DETERIORATION OF ASPHALT PAVEMENT ALONG EAST

SIDE OF CULVERT

PHOTO #8 - TRANSVERSE CRACKING OF SOUTH APPROACH

PAVEMENT

PHOTO #9 - TYPICAL COLLISION DAMAGE TO NORTH END OF TIMBER

RAILINGS, WEST RAILING SHOWN

PHOTO #10 - WEST RAILING OUT OF PLUMB DUE TO COLLISION

DAMAGE

PHOTO #11 - GENERAL VIEW OF EAST BRIDGE RAIL OUT OF PLUMB;

NOTE RAIL WOULD NOT SAFELY REDIRECT AN ERRANT VEHICLE

PHOTO #12 - TYPICAL WEST RAIL POST LEANING SOUTH DUE TO

COLLISION DAMAGE

PHOTO #13 - GENERAL VIEW OF SOUTH WALL

PHOTO #14 - TYPICAL HONEYCOMBING OF BARREL WALLS; NORTH

WALL SHOWN

PHOTO #15 - FAILURE OF NORTHEAST RETAINING WALL

PHOTO #16 - BULGING OF SOUTHEAST RETAINING WALL

PHOTO #17 - TYPICAL LOOSE AND DISPLACED STONES USED FOR

MASONRY RETAINING WALLS, NORTHEAST RETAINING WALL SHOWN

PHOTO #18 - POSTING SIGN AT NORTH END OF BRIDGE; NOTE

GUNSHOT DAMAGE

PHOTO #19 - UPSTREAM CHANNEL

PHOTO #20 - DOWNSTREAM CHANNEL