521-2.726_INSP_200324 (002).pdf

Inspection Date: 3/24/2020

Route: 521 Milepost: 2.7260 Structure No:

OVER

County, (Signature)

BRIDGE INSPECTION AND MANAGEMENT PROGRAM

Insert Cover photo here.

521-2.9

KISATCHIE NATIONAL FOREST

USDA FOREST SERVICE, REGION 8

080604000002416

ROAD BRIDGE INSPECTION REPORT

ROUTINEINSPECTION TYPE:

Grant Louisiana

521-2.9 BEAR CREEK

INSPECTION TEAM LEADER: John K. Hardin

U.S. DEPARTMENT OF AGRICULTURE

Structure Name: (8)Structure No:

(5D)Route:

Forest:

100.0 15.2 15.2

(45)No. Main Spans: 5

(46)No. Appr Spans: 0

No. Substrs: 6

(in Tons) Inventory Safe Load Capacity

HL-93 (RF) -

HS-20

Type 3 Type 3S2 Yes/No Type 3-3 No 0 Months NRL (RF) No 0 Months Rating Date: No 0 Months

(41) Posting Status:

(70) Posting Capacity (31)Design Load:

(63,65)Method of Load Rating:

Yes X No

Date:

Inspection Team: Leader: Jurisdiction:

Weather: Latitude:

Township: 11 Meridian:

(9)Location:

Narrative Report: (Add additional sheets if necessary)

LOUISIAN TRUE 26

GRANT TRUE

521-2.9

Refer to the sketch included with this report for guidance in identifying and locating the bridge components. Girders and piles are numbered from left to right. Note that the data in the highlighted fields on this page has changed. The inventory should be updated accordingly. A ladder was required to access some of the bridge components.

Recommended Inspection Frequency:

John K. Hardin 31.75574167

1:09 PM

Partly Cloudy, 84 degrees

LOGMI 0.92 FR 532 TO

Months

9N Range: 2W Section:

Operating

(49)Overall Br Length:

Description:

Posting

0.0

Integral Concrete(108A)Wearin g Surface:Concrete, Precast Panels

Channel Beam

NBIS Bridge Opening:

99.99 0

BRIDGE RATING SUMMARY:

(47)Horizontal (53)Vertical (34)Skew:

(107)Deck StructureType:

USDA FOREST SERVICE, REGION 8

BEAR CREEK(11)Milepost: 2.7260

BRIDGE IDENTIFICATION AND LOCATION

080604000002416

KISATCHIE NATIONAL FOREST

(32)Approach Roadway Width:

(48)Max Span:

(52)Deck Width out-out: 16.6(51)Roadway Width (Curb to Curb):

Security ID 0806WINN

521 (6)Feature Crossed:

20.0

BRIDGE DESCRIPTION and MEASUREMENTS KISATCHIE District:

20.0 (27)Year Built:

4/30/2016 Posted For Load > 39.9% Below

Critical Findings: SI&A Item 60 reduced to 1 due to conditon of cap at Bent 2 and lack of bearing at Bent 4. Consider closing the bridge until deficiencies are addressed.

SPECIALIZED INSPECTIONS:

(43B)Superstr Type:

Specialized Inspections Required

(23 CFR 650.303)

Based on this inspection, is additional inspection work needed in these specialized inspection If Yes How Soon Neede

Pile Bent

(43A)Superstr Material:

(44A)Superstr Material:

Concrete, Prestressed

Timber, TreatedSubstr Material:

(44B)Superstr Type:

Longitude: -92.54822277

Re-rating required based on this inspection?

Substr Type:

FS

Inspection Template Revision Date: 05/31/2017

Infra data used for this report was pulled on: 04/23/2017

1/4 Sect:

11:32 AM

(92A) Fracture Critical (92B) Underwater (92C) Special

HS20-44

8 - LRFR REPORTED AS RATING FACTOR

Time Completed:

3/24/2020 Time Started:

INSPECTION INFORMATION

Special Equipment Need

3/24/2020

Milepost: 2.7260 080604000002416

CODE

N

* 1. F C1. F C2. P C3. - C4. F C5. G C6. F C7. No

* 1. P

* 2. -

* 3. -

* 4. -

C1. P C2. -

C3. NOB

C4. NOB

*1. C *2. F *3. F

*4. F *5. F *6. G *7. - *8. G

*9. - *10. - *11. - *12. - *13. G *14. P *15. F *16. F *17. C *18. - *19. - *20. P *21. F

A B

U

TM

E N

TS

P

IE

R

S

Timber Abutments (incl. WW)

Other Abutments

Columns or Walls

Structure Name:

Route:

Walls Piles

b. Portals

c. Verticals/Diagonals

Bearing Devices Paint

d. Bracing

Deflection Under Load Vibration Under Load

Alignment (tilting, rotating, etc.)

521-2.9

See Narrative Sheet. Steel bearing plates.

See Narrative Sheet and Sketches Sheet See Narrative Sheet

Erosion or Scour Settlement

Alignment (tipping, tilting, etc.)

Crib Walls/Tie Backs

Caps Footings

Wingwalls See Narrative Sheet See Narrative Sheet

No listing for wingwalls under Timber Abutment.

* Only these items are used in the determination of the overall condition rating for that category, i.e. Deck, Superstructure, Substructure. Other items should be rated and remarked on but NOT included in determining the overall category rating. Items enumerated using a C (ex. C1) should be commented on but not rated. See the FHWA Coding Guide for further information as to what is included in condition ratings.

1 Also includes wingwalls connected to the superstructure above the beam seat.

2 Includes wingwalls integral with the abutment or the portion of the wingwall below the bearing seat.

See Narrative Sheet See Narrative Sheet

59. SUPERSTRUCTURE:

Sidewalks Drains and Drainage See Narrative Sheet

Expansion Joints Curbs

Rideability Cleanliness Utilities

Floor Beams

60. SUBSTRUCTURE:

Caps

Structure No:

Date:

Footings Piles See Narrative Sheet

See Narrative Sheet See Narrative Sheet

Caps

Backing Planks Sills/Footings

Settlement

See Narrative Sheet

See Narrative Sheet. Each channel unit has 2 girders.

Stringers

Erosion or Scour

Bracing

CONDITION CODES and REMARKS

Six pre-cast concrete channel units.

See Narrative Sheet

Wearing Surface

Deck Slab/Panels/Joists

REMARKS(Overall Code for item, to be reported to FHWA, in bold box)

58. DECK:

Posts/Piles/Tie Backs

See Narrative Sheet

Girders 12 ea.

a. Diaphragms

b. Bracing

a. Chords Trusses

Milepost: 2.7260

CODE

1. F

2. -

3. F

4. P

5. G

6. 15.2

N *1. - *2. - *3. - *4. -

5. -

G

1. G

2. G

3. G

4. G

36A 0 36B 0 36C 0 36D 0 A. F B. - C. - D. -

1. P

2. G

1. G

2. G

N

CONDITION RATING OF EACH MEMBER OR ELEMENT

-NOT APPLICABLE

-APPLICABLE, BUT NO OBSERVED. (Give reason unless obvious)

-ELEMENT IN NEW OR GOOD CONDITION WITH NO REPAIRS NECESSARY.

-ELEMENT IS STILL PERFORMING THE FUNCTION FOR WHICH IT WAS INTENDED BUT MAY NEED MAINTENANCE.

-ELEMENT IS PERFORMING AT REDUCED CAPACITY.

-ELEMENT IS NOT PERFORMING THE FUNCTION FOR WHICH IT WAS INTENDED

Approach Rail Ends Approach Guardrails

Approach Settlement APPRAISAL CODES and REMARKS

Bridge Railing See Narrative Sheet

C O

N D

IT

IO

N of e le m en ts

There are no approach guardrails.

36. TRAFFIC SAFETY FEATURES:

Rail Transitions

See Narrative Sheet

Channel Protection

Observed Lateral Movement

Surfacing (Not needed for reporting to FHWA)

Vegetation Waterway Obstructions/Drift

Shape Seams or Joints Material Condition

61. CHANNEL and CHANNEL PROTECTION:

(Overall Code for item, to be reported to FHWA, in bold box) REMARKS

Channel Scour/Erosion See Narrative Sheet

Foundations

Shoulder Embankment Roadway Embankment

APPROACH CONDITION:

Headwall/Wingwall

G = GOOD

C = CRITICAL

72. APPROACH ROADWAY ALIGNMENT:

67. STRUCTURAL EVALUATION

NOB

F = FAIR

P = POOR

69. UNDERCLEARANCE:

Structure Name:

Route:

521-2.9

Signing See Narrative Sheet

Clear Height Height (feet) from thalwag to bottom of lowest superstructure member

62. CULVERTS

CONDITION CODES and REMARKS (continued) Structure No.:

Date:

080604000002416

3/24/2020

Object Markers

68. DECK GEOMETRY:

Horizontal Vertical

29. ROAD ADT

* Only these items are used in the determination of the overall condition rating for that category, i.e. Deck, Superstructure, Substructure. Other items should be rated and remarked on but NOT included in determining the overall category rating. Items enumerated using a C (ex. C1) should be commented on but not rated. See the FHWA Coding Guide for further information as to what is included in condition ratings.

71. WATERWAY ADEQUACY:

113. SCOUR CRITICAL BRIDGES: Bridge is on deep foundation. (Pile supported)

Milepost: 2.7260 Structure No.:

Work Item Category Detailed Work Item Description

Deck

Repair the broken curb on the right side on Span 1 and patch the spalled area on the left curb on Span 1.

Superstructure Consider replacing the steel bearing plates.

Superstructure Repair the bearing area of Span 5, Girder 12 at Bent 5.

Substructure Realign Bent 4 or modify the cap to provide additional bearing area for Span 4. CRITICAL

Substructure Replace the cap at Bent 2.

CRITICAL

Substructure Replace Bent 5, Pile 2.

Traffic Safety Features

Install a "One Lane Bridge" sign at the near end of the bridge and replace the "One Lane Bridge" sign at the far end of the bridge.

Traffic Safety Features

Consider moving the "Weight Limit 3 Tons" signs nearer to the abutments.

Channel

Remove the brush that was cut and left lying upstream of Span 2.

Remove the leaning tree from the waterway on the upstream side of Span 1.

Whole Bridge Consider replacing this structure.

Traffic Safety Features

Consider closing this bridge until deficiencies associated with Bents 2 and 4 are addressed.

xxx xxx xxx xxx

LS/B

#N/A

#N/A

#N/A

#N/A

1,660

Signing - Repair/Replace Approach Signs 2

Waterway Obstruction/Drift - Remove Debris/Vegetation TBD

EA

EA

HR

SF

Signing - Repair/Replace Approach Signs

Replace Bridge

Signing - Install Barricades to Close Bridge

Timber Abutments/Piers - Repair/Replace Caps 1

Timber Abutments/Piers - Repair/Replace Posts/Piles 1EACH

LS/A

EACH

Timber Abutments/Piers - Reset/Realign

Bearing Devices - Clean and Lubricate TBD

Concrete - Girders/Diaphragms/End Walls Repair/Patch 1

HR

SF

CFConcrete Curb - Repair/Replace,10 cf or less

6002001

5002004

8003002

8003002

8003003

#N/A

#N/A

#N/A

#N/A

4002001001

5002001

5002003

Work Item Code

4005001

30060010010

Unit

RECOMMENDED WORK ITEMS

Work Item Quantity

080604000002416521

3/24/2020Date:521-2.9

Route:

Structure Name:

Date:

521 Milepost: 2.7260 Structure No:

Item Reference

58.1

58.C1

58.C2

58.C4 58.C6

59.1

59.C1

60.1 60.14

60.2 60.15 61.1

60.3 60.16

60.17

60.20

61.4

36.A

36.1

ITEM REFERENCE AND REMARKS ~ NARRATIVE REPORT

Alignment - The left end of Bent 4 is not centered under the transverse joint between Spans 3 and 4. Span 4 only bears on very little of the bearing plate and cap as a result. (Photos 16 through 19) The right end is centered and Channel Units 4, 5, and 6 have near equal bearing; however Channel Units 1 and 2 are very near slipping off of the cap. These Channel Units have settled 1" as evidenced by misalignment of the curb and deck. (Photos 20 and 21) This structure should be closed until Span 4 is adequately supported at Bent 4.

Erosion of Scour, Channel Scour / Erosion - The stream bank is scouring upstream of Span 1 and under Spans 1 and 2 (Photo 22). The streambed is scouring around Bent 3. (Photo 23)

Settlement - Previous inspection reports indicate that Bent 2 had settled slightly. It now appears that Bents 2 and 3 may have settled, but it is difficult to determine whether the bents have settled or other bents were constructed at a higher elevation.

Caps - The cap at Bent 2 is decaying at its core. Sounding, drilling, and probing indicate that it is hollow in its entire length; however, there were no signs of crushing at the time of the inspection. (See Sketch) It also has external decay in areas where checks in the timber are retaining moisture. These decayed areas are only ¼” to ½” in depth at this time. (Photo 24) The bridge is in CRITICAL condition due to the decay of this cap.

Remarks

Deck Slab / Panels / Joists - The deck surface is becoming worn. Aggregate is exposed. (Photos 1 and 2) Some of the deck panels have minor concrete breakage at the corners and edges on the surface. (Photos 1 and 2) Expansion Joints - The deck joints are sealed with what appears to be silicone. The seals no longer bond to the concrete properly in some areas. (Photo 3) Curbs - The curbs have been patched on the right side of Span 1 at the near end and on the left side of Span 5 at the far end. The patch and curb have broken on the right side of Span 1 resulting in the bridge rail post being detached from the bridge. (Photo 4) The curb on the left side of Span 1 has a 6"x8"x2" spall with exposed reinforcing steel on the near end. (Photo 5) Drains and Drainage, Cleanliness - An accumulation of sand, gravel, and vegetation in the gutterlines prevents proper drainage. (Photo 6)

Girders - Span 1, Girder 4 has a 20" diagonal crack at the bearing on Bent 2. (Photo 7) Span 2, Girder 1 has a 4’ to 5’ diagonal crack that originates at the end approximately 8” above the bearing on bent 3 and extends to the bottom of the stringer. (Photo 8) Span 2, Girder 9 has a 12" diagonal crack at the bearing on Bent 2. (Photo 9) Several of the girders are spalling adjacent to steel plates embedded in the bearing area. (Photos 10 and 11) Corrosion has caused incidental, unreinforced grout that had accumulated between the plates and the forms during the casting process to break away.

Bearing Devices - The steel bearing plates are severely corroded (Photos 12 and 13), but continue to perform the function for which they were intended. Span 5, Girder 12 does not bear properly on the cap at Bent 5. The concrete has spalled away from the embedded, steel plate which appears to have been set too deeply into the stringer. The stringer now bears on a 3”x1"x.25” steel plate that was welded to the embedded plate. (Photos 14 and 15) This bearing is inadequate and should be repaired properly.

Waterway Obstructions / Drift - Trees and brush that were cut immediately upstream of Span 2 were left lying in the waterway. (Photos 28 and 29) Remove a tree from the upstream side of the bridge that is leaning heavily toward Span 1. (Photo 30)The channel is littered with fallen trees and debris on both sides of the bridge.

Bridge Railing - The bridge rail on the left side of Spans 3, 4, and 5 and on the right side of Spans 4 and 5 was previously replaced. The splices in the new railing do not all align with a post. The bridge rail posts are not of sufficient size and the spacing is excessive. One of the bridge rail posts on the right side of Span 1 is no longer attached to the bridge as a result of damage to the curb. (Photo 4)

Signing - "Weight Limit 3 Tons" signs have been installed 50' to 60' from Abutments 1 and 6. These signs should be nearer to the bridge. There is a “One Lane Bridge” sign in advance of the bridge at the far end. The "One Lane Bridge" sign is missing from the near end. The “One Lane Bridge” sign at the far end of the bridge has become illegible and needs to be replaced. It is leaning slightly, but remains visible.

Piles - Bent 2, Piles 1 and 2; Bent 3, Pile 2; and Bent 5, Pile 2 are decaying internally. (See Sketches) Bent 5, Pile 2 is also decayed to a depth of 3" at the ground line (Photo 25) and should be replaced. Some piles have checking up to .25" in width. (Photo 26) New piles were driven to replace Bent 4, Piles 1, 2, and 3. Bent 5, Pile 1 has been spliced. (Photo 27)

521-2.9Structure Name:

Route:

3/24/2020

080604000002416

Route: Milepost: 2.7260

3/24/2020

080604000002416Structure No:

521-2.9Structure Name:

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Approach Ahead on Station

BRIDGE PHOTOS

Approach Back on Station

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Route: Milepost: 2.7260

Structure Name: 521-2.9 3/24/2020

521 Structure No: 080604000002416

BRIDGE PHOTOS - cont.

Looking Upstream from the Bridge Deck

Looking Downstream from the Bridge Deck

Route: Milepost: 2.7260

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Looking Downstream - Elevation Profile

Looking Upstream - Elevation Profile

3/24/2020

Structure No: 080604000002416

BRIDGE PHOTOS - cont.

Structure Name:

521-2.9

Route: Milepost: 2.7260

BRIDGE PHOTOS - cont.

Abutment 1

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Bent 2, Far Side

Structure Name: 521-2.9 3/24/2020

521 Structure No: 080604000002416

Route: Milepost: 2.7260

BRIDGE PHOTOS - cont.

Bent 3, Near Side

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Bent 4, Near Side

Route: Milepost: 2.7260

BRIDGE PHOTOS - cont.

Bent 5, Near Side

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Abutment 6

Route: Milepost: 2.7260

Photo 2

3/24/2020

Structure No: 080604000002416

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Photo 1

BRIDGE PHOTOS - cont.

Structure Name:

Route: Milepost: 2.7260

Photo 4

3/24/2020

Structure No: 080604000002416

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Photo 3

BRIDGE PHOTOS - cont.

Structure Name:

Route: Milepost: 2.7260

Structure Name: 521-2.9 3/24/2020

521 Structure No: 080604000002416

BRIDGE PHOTOS - cont.

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Photo 5

Photo 6

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Photo 7

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Photo 8

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BRIDGE PHOTOS - cont.

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Photo 9

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Photo 10

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BRIDGE PHOTOS - cont.

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Photo 11

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Photo 12

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BRIDGE PHOTOS - cont.

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Photo 13

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Photo 14

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BRIDGE PHOTOS - cont.

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Photo 15

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Photo 16

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BRIDGE PHOTOS - cont.

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Photo 17

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Photo 18

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Photo 19

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Photo 20

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BRIDGE PHOTOS - cont.

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Photo 21

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Photo 22

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Photo 23

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Photo 24

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Photo 25

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Photo 26

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Photo 27

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Photo 28

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BRIDGE PHOTOS - cont.

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Photo 29

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Photo 30

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Structure Name:

521-2.9 3/24/2020

Structure No: 080604000002416

BRIDGE SKETCHES

Structure Name: Date:

Route: 521 Milepost: 2.7260

15.2

2018 2020 2022 2024 2026 2028 2030 0 1.0 0.9 0.0 0.0 0.0 0.0 0.0 8 1.7 0.0 0.0 0.0 0.0 0.0 13 2.6 2.2 0.0 0.0 0.0 0.0 0.0 16 6.0 6.1 0.0 0.0 0.0 0.0 0.0 20 7.5 7.7 0.0 0.0 0.0 0.0 0.0 22 8.5 7.9 0.0 0.0 0.0 0.0 0.0 25 7.0 0.0 0.0 0.0 0.0 0.0 29 7.0 7.1 0.0 0.0 0.0 0.0 0.0 37 10.2 0.0 0.0 0.0 0.0 0.0 38 12.2 11.0 0.0 0.0 0.0 0.0 0.0 40 13.3 11.5 0.0 0.0 0.0 0.0 0.0 44 14.9 14.4 0.0 0.0 0.0 0.0 0.0 49 15.2 0.0 0.0 0.0 0.0 0.0 51 15.2 0.0 0.0 0.0 0.0 0.0 54 14.9 0.0 0.0 0.0 0.0 0.0 56 13.0 12.5 0.0 0.0 0.0 0.0 0.0 60 10.0 10.6 0.0 0.0 0.0 0.0 0.0 62 8.0 0.0 0.0 0.0 0.0 0.0 66 5.4 0.0 0.0 0.0 0.0 0.0 68 6.4 0.0 0.0 0.0 0.0 0.0 68 5.1 0.0 0.0 0.0 0.0 0.0 80 4.1 4.1 0.0 0.0 0.0 0.0 0.0 92 1.8 0.0 0.0 0.0 0.0 0.0 97 1.3 0.0 0.0 0.0 0.0 0.0 100 0.5 0.0 0.0 0.0 0.0 0.0 0.0

Water Surface 12.7 10.8

Channel Cross Section

Horizontal Dist Measured from A-1

Distance Measured from Top of Cap

3/24/2020 Structure No: 080604000002416

521-2.9

Input Cross-Section Data:

Height (feet) from thalwag to bottom of lowest superstructure member

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

0 20 40 60 80 100 120

Top of Cap

(Substructure elements can be inserted in the cross-section using Insert, Shapes )

Milepost:

ID

Description

Needed for Real Property Verification

N Re-rating required? (Enter Y/N) Y Specialized Equipment Required? (Enter Y/N)

Infra Summary Data

Structure Name: 521-2.9 3/24/2020

Route: 521 2.7260 Structure No: 080604000002416

Main Data Appraisal Data

Insp Team Leader

Inspection_Type (System Generated) (System Generated) Inspection Date 3/24/2020 ROUTINE Inspection Freq 12

Wear Srfc Cond N Deck Cond (58) 6

Inspection Cost Aprch Cond G

Culvert Cond (62) N Channel Cond (61) 5

Supstr Cond (59) 5 Substr Cond (60) 1

Inspected By* John K. Hardin Done By (Org) FS - FOREST SERVICE

Scour Crit Br (113) 5 Insp Resp Name FS - FOREST SERVICE

Main Data Appraisal Data

Done By Name (Unit) REGIONAL OFFICE

Str Eval (67) 1 Deck Geom (68) 7

Approach Align (72) 8

Underclr (69) N Waterway Adq (71) 6

Insp Remarks

Refer to the sketch included with this report for guidance in identifying and locating the bridge components. Girders and piles are numbered from left to right. Note that the data in the highlighted fields on this page has changed. The inventory should be

Approach Rail Ends (36D) 0

John K. Hardin

Insp Team

Transition (36B) 0 Approach Guardrail (36C) 0

Traffic Rail Safety Features Appraisal Bridge Rail (36A)