Report_Bridge_Inspection.pdf

2011 USFS STRUCTURAL CONDITION INSPECTION REPORT

N.B. I.S. Compliant Yes No X

ATTENTION: Decayed Floor

Inspection Type: Routine District: Croatan Route: 121 - 2 Mile Post: 1.5 Date: 2/12/2013 County: Craven

Superstructure Type: Timber Floor & Joists Substmcture Type: Timber Caps on Timber Piles

Feature Crossed: Gamble Creek

Year Built: 1977

G.P.S. Latitude: 34.99620 Deg. Longitude: 077.06250 Deg.

Wearing Surface Type Longitudinal Timbers

O.M's Needed Yes (No) Amount 0

O.M.Posts Yes (No) Amount 0

Fracture Critical Yes (No) Other Signs Present: Four (4) O.M.'s 1....-----'-___:'--~...J

Scour No Other Signs Needed: One Lane (Yes) ,____,___~_._ __ ___, Bridge (2)

Defects (Yes) No

Changes in Load Rating Since (Yes) No Last Inspection

BMC Bridge Inspection Inspection Date: 02/12/2013 (MM/DD/YYY) Deck Condtion: N/A 9 8 7 6 (5) 4 3 2 1 0

Deck Geometry: N/A 9 8 7 (6) 5 4 3 2 1 0 Superstmcture: N/A 9 8 7 (6) 5 4 3 2 1 0

Waterway Adequacy: N/A 9 8 7 6 (5) 4 3 2 1 0 Substmcture: N/A 9 8 7 (6) 5 4 3 2 1 0

Structural Evaluation: N/A 9 8 7 (6) 5 4 3 2 1 0 Channel Condition: N/A 9 8 7 6 (5) 4 3 2 1 0

Under Clearance: (N/ A) 9 8 7 6 5 4 3 2 0

Approach Alignment: 9 (8) 7 6 5 4 3 2 0

TSF Railing: 0 1 (N) TSF Transition: 0 1 (N) TSF Approarach Guardrail: 0 1 (N) (Rail Codes

Culvert Condition: (N/ A) 9 8 7 6 5 4 3 2 1 0

Wearing Surface Condtion: (N/ A) 9 8 7 6 5 4 3 2 1 0

TSF Guardrail Ends: 0 1 (N) Listed Below) Previous Work Items Completed: Yes (No) N/A 0 =Feature Does Not Meet Current Standards 1= Feature Meets Current Standards N = Not Applicable or Not Required Scour Critical: N/A 9 8 7 6 (5) 4 3 2 1 0

Previous Inspection: 02/02/2011 Cun·ent Inspection: 02/22/2013 Assisted By: T .F. Gay

I Inspection Frequency: (2 Year) 4 Year

Present Posting: 20 10 Load Rating Calls for SV - Legal & TTST - Legal

Previous Inspector: T.J. Godleski Inspector (Print) : T.J. Godleski

Inspector Signature : -a_ .1. ~' I

More Frequent Intervals of:

[ Sheet #1 of I 9

2013 USFS STRUCTURAL CONDITION INSPECTION REPORT

Route: 121- 2 Milepost: 1.5 Date: 2/12/2013

58. DECK

Type: Timber

l. Bridge Railing/Parapet/Median

2. Cleanliness

3. Curbs

4. Deck

5. Deck Joints

6. Drainage System

7. Lighting

8. Ridcability

9. Sidewalk 10 Uti lities 11 Wearing Surface

Summary Condition Rating (58)

CONDITION

RATING

N/A

N/A

N/A

N/A N/A

58.2 & 58.6 - UQ to I" high buildugs of dirt, gravel & debris on top of the deck on either side of the longitudinal rmmer timbers with 1/2" of same on top of the longitudinal numer timbers.

58.3 - The timber curbs are weathered with scattered SQlintering & vandalism.

58.4- The deck timbers are 'vveathered. Decay found in the tog surface of the UQstream 3'- 0" (+/-) offive

(5) non-adjacent randomly located deck timbers with the decay being Qartially to comQletely through the thickness of the deck timbers (See Reg. Photo). These same conditions are also found in the downstream 3'- 0" (+/-) of all deck timbers (See Rep. Photo).

58.11 - There are two (2) sets of four ( 4) longitudinal runner timbers on tog of the deck that traffic travels across. Both sets consist of three (3) 12" wide x 3'' high timbers & one (1) 6" wide x 3" high timber. The toQ of all longitudinal runner timber are traffic worn & weathered. Scattered areas of heavy decay are found throughout the entire lengrth of the UQStream most 12" wide x 3" high timber (See Rep.

Photo). The tv.1o adjacent 12" wide x 3" high timbers next to the timber mentioned in the grevious sentence have decay in their north most 1'- 0". Decay is also found in the north most 1'- 0" of the 6" wide x 3" high timber in both sets of longitudinal runner timbers (See ReQ. Photo).

Sheet #2 of I '1

Route: 121 - 2 Date: 2/12/2013

Milepost: 1.5

I 59. SUPERSTRUCTURE I

1) 2)

Bearing Devices Beams/Girders (Type: Tmbr. Joists)

a. Diaphragms

b. Bracing

3) Floorbcams

4) Stringers

5) Trusses

a. Bracing

b. Chords

c. Portals and/or End Posts

d. Verticals/Diagonals

6) Paint

7) Deflection Under Load

8) Vibration Under Load

9) Timber Joists

Summary Condition Rating (59)

CONDITION

RATING

N/A

N/A N/A N/A N/A N/A N/A N/A N/A Nli\

NIA

N/A

59.2- The timber joists are weathered with scattered 1/2 11 to 111 deep spl intering along their bottom corners.

Sheet #3 of I q

Date: 2/12/2012

I 60. SUBSTRUCTURE I

Abutments:

I. Alignment

2. Backwalls or Bulkheads

3. Bearing Seats

4. Breastwalls or Columns

5. Caps

6. Erosion I Scour

7. Footings I Sills

8. Piles & Bracing

9. Settlement

I 0. Weep Holes I I. Wingwalls Piers and Bents:

12. Alignment

13. Bearing Seats

14. Caps

15. Columns or Walls

16. Scour I Erosion

17. Footings I Sills

18. Piles & Bracing

19. Settelment

Summary Condition Rating (60)

CONDITION

RATING

N/A

N/A

N/A N/A

N/A N/A N/A N/A N/A N/A N/A N/A l61. CHANNEL AND CHANNEL PROTECTION!

I. Adequacy of Opening 5

2. Channel Protection 7

3. Channel Scour I Erosion 4

4. Clear Height 7

5. Stream Flow Velocity 7

6. Vegetation 6

7. Waterway Obstruction I Drift 7

Summat')' Condition Rating (61) 5

60.2 - The bulkhead timbers are weathered at both abutments with scattered decax, However, the fill is being adeguatel:t retained. Also; decax in the toQ most 1'- 0" of the bulkhead retaining piles.

60.5 -The timber caps are weathered with UQ to 4" cleeQ decay in the upstream most I 0" of the tog surface of the caQ at both abutments (See Rep.

Photo). SQlintering along the bottom stream face edge of the caps. Scattered 2" deep decay in the tog & end surface of the downstream end of the cag at Abut. #2. The decay along the tog of the ca12 at this location is found in the downstream 1'- 2" of the cag & is causing a minor bearing area loss beneath Joist# ! I.

60.6 - The stream bed degradation/erosion & the stream bank erosion found at Abut. #2 during the 2011 ins12ection have been regaired or have fi lied back in. Undermining was found beneath the bulkhead at Abut. #2 during the 2013 insgection, but the void created bx the undermining is onlx 6" high x 6" deeg (See Sketch on Sheet #4A of Report).

60.8- The piles are weathered.

61.1 -The south edge of the creek flows against the ugstream end of Abut.# I. The majorit:t of the creek flows aginst & along Abut. #2. Also; two channels & the main creek come together on the ugstream side ofthe bridge to form one creek.

61 .2 - Ripra12 has been glaced at the downstream end of Abut. #I & at the upstream & downstream ends of Abut. #2 & is presentlx stable (See Photos)

61.3 & 61.6 - Please refer to Item #60.6. Also;

machinerx (?)has been used to excavate the stream channel beginning at 40'- 0" (+/-)downstream from bridge (See Photo).

Sheet #4 of 11

Fillface of Bulkhead

Approach Roadway Fill)

Bridge #121 -2-1.5 Croatan District

6"

Water Surface

Stream Face of Bulkhead (NOTE: Bulkhead Timbers Are 3" Wide)

\ w

6" Hgt. Of Void

DepthofVoV

Face of Bulkhead

ELEVATION SKETCH THROUGH ABUT. #2

Showing Void Caused By Undermining Cap & Pile Not Shown For Clarity

(Scale: Not to Scale)

2/12/2013

(T.J. Godleski)

Water Depth at Face of Bulkhead = 3'- 1" (Max.)

~h.. e.~ -/- 4 -A oF Ji. -

2013 USFS STRUCTUllAL CONDITION INSPECTION REPORT

I Route: 121- 2 Date: 2/12/2013

Milepost: 1.5

71. WATERWAY ADEQUACY

Opening Good Alignment Good Frequency of Overtopping Remote

Overall Appraisal Rating (71) 6

(Fair) (rair) Slight

APPROACH ROADWAY CONDITION

CONDITION

RATING

I Approach Settlement 6 2 Roadway Embankment 7

3. Shoulder Embankment 7

4. Surfacing Unpaved 6

5. Approach Slabs N/A

Summary Condition Rating 6

ln. APPROACH ROADWAY ALIGNMENT I

Approach Alignment

a. Vertical

b. Horizontal

(incl. Sight distance)

Summary Condition Rating (72) 8

I 36. TRAFFIC SAFETY FEATURES I

36A Bridge Railings:

368 Rail Transitions:

36C Approach Guardrail:

360 Approach Rail Ends:

Poor Poor (Occasional)

Waterway Adequacy:

Frequent

Opening & Alignment- Please refer to Items 60.6 & 61.1 on Sheet #4 of Report.

Appr. Rdwy. Condition Items #I & #4- The unpaved approach roadways are potholed & rough.

RATING

I Sheet #5 of I Cj

Date: 2/12/2013

67. Structural Evaluation ( 6) 68. Deck Goemetry ( 6 )

71. Waterway Adequacy ( 5 ) 113. Scour Critical Bridges ( 5 )

[ Work Items/or Estimates:

Routine Bridge Inspection:

Place One Lane Bridge Signs (2) With Posts

Clean Off the Top of the Deck on Either Side of the Longiudinal Runner Timbers- 116.8 Square Feet.

Replace the Decayed Runner Timbers - Total of 18.5 Feet of 12" Wide x 3" High Timber & a Total of 2'- 0" of 6" Wide x 3" High Timber.

Replace All of the Deck Timbers- 236 Square Feet of Deck.

I Sheet #6 of ___Lj_ J

Bridge #121 - 2 - 1.5 2/12/2013

Rep. Of Decayed Deck Timbers Upstream Side of Bridge

Rep. Of Decayed Deck Timbers Downstream Side of Bridge

Rep. Of Decay in longitudinal Runner Timbers (North End)

Rep. Of Decay in the Left most Longitudinal Runner Timber in the Upstream Half of Bridge

Bridge #121-2 - 1.5 2/12/2013

Rep. of Decay in Upstream End of Cap at Both Abutments Abut. #2

Remaider of Rip rap Placed at the Downstream End of Abut. #1

Riprap Placed at the Upstream End Abut. #2

Riprap Placed at the Downstream End Abut. #2

STRUCTURE DATA WORKSHEET

Bridge#: 121-2 - 1.5 District : Croatan Date: 2/12/2013 By: T.J.G.

APPROACH ROADWAY WIDTH (SI & A ITEM 32)

2'- 0" 10'- 0" Unpaved 2'- 0"

• J

Unstable Looking: North Unstable

TYPICAL SECTION 1 Scale: N.T.S.

12" Wide X 3" High Longitudial Runner Timber

12" Wide X 6" High Timber Curb 6" Wide X 3" High

~xB"T;mber Londitudinal Runner pport Post for Timber r- ~I I~ Symmetrical @ C/L

II I i M:: !

in ~ '\ 12" Wide X 3" High I' 3'- 0" Inside Edge to Inside Edge Of Runners

I

12" Timber Floor I N

Eleven (11) Lines of Timber Joists@ 1'- 41/4" Ctrs. -~ I

14 14'- 4" Clr. Rdwy. & Out of Deck

00 Degree Skew

Outside Edge of 12" Wide X 3" High Runner to Face Of Timber Curb = 2'- 0"

Span Length "Brg. To Brg.

6" A 16'- 6" 15'- 0" n N.B.I.S.

Length = 14'- 0"

~ . I

Page of

STRUCTURE DATA WORKSHEET

Bridge#: 121·2 ·1.5 Dislrlcl: Croatan Dale: 2/12/2013 By: T.J.G.

I I DATA for ABUTMENTS 1

Cap

I

12" Diameter Pile Piles Are Creosote Timber

P1

2'· 0" See Table Below 2'· 0"

Elevation Pile or Post Spacing

P1-P2 P2-P3 P3-P4 P4·P5 P5·P6 P6·P7 P7-P8 P8-P9 P9·P10 P10·P11 P11 ·P12 P12-P13 6'· 0" 6'· 0"

P13-P14

1'· 0" ,. 'I I I

J ~ ~] e TIMBER ' ~

CAP

TIMBER PILE

~e~!ion Thru Cau Section Thru Post or Pile

Page of

STREAM BED SOUNDINGS

(SEE NEXT SHEET FOR PROFILE SKETCH)

BR.INSP. WORKSHEET (1/1/90)

Revised 1019/1998

Br. #: 121-2 - 1.5 DISTRICT Croatan

DATE 2/12/2013

RECORD SOUNDINGS FROM TOP OF RAIL. OTHER LOCATION IF NEEDED; Top of Curb

DISTANCE HIGHWATER MARK TO TOP OF CURB; ____ LOCATION H. W. MARK: Unknown

NOTE:Drafl a Stream Bed Profi!e sketch and record soond:ngs at the stream face of abutments, CIL of piers, WE, WS, and major contoor changes on the do\\ns~eam s!de. Record sound'ngs at the s~eam face abutments and Cll piers on the upstream s!de.

DOWNSTREAM UPSTREAM

DISTANCE SOUNDING DESCRIPTION DISTANCE SOUNDING

(Station) (Station)

4.5 6.4 WS&WE

15.2 6.4 WS&WE

0 0.8 F.F.

0.2 0.8 Top of Bulkhead 1 2.4 Top of Cap

1.3 4.0 S.F.

4.5 6.4 WS&WE 1.3 8.5

a 9.0 12 9.2

15.2 8.8 S.F. 15 4.5

15.2 6.4 WS&WE

15.5 2.4 Top of Cap

16.3 0.8 Top of Bulkhead

16.5 0.8 F.F.

Page of

BY: T.J.G

DESCRIPTION

WS&WE

WS&WE

\.1'

\=Z l1

Bri. # 121-2-1.5 District: Croatan Date: 2/12/2013 By: T.J.G. Page 2 of 2

STREAMBED PROFILE (Downstream)

Top of Rail = 0 (Sounding) Distance (Station)

0 2 4 6 8 10 12 14 16 18 0 +---------r--------1---------+---------r--------+---------r-------_,---------+--------~

C) c:

"C 5 ws c:

::l

(/J

9 I I ~

10 ~------~--------~--------~------~--------~--------~------~--------~------~

Looking North

Looking $outh

Looking Downstream/East From off Bridge

Looking Upstream/West From off Bridge

Looking Upstream/West

Looking Downstream/East

Bridge #121-2 -1.5 2/12/2013

Abut. #1

Abut. #2

PHOTO LIST

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